general protection fault in rt6_fill_node
by syzbot
Hello,
syzbot found the following issue on:
HEAD commit: d7223aa5 Merge branch 'l2tp-replace-custom-logging-code-wi..
git tree: net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=1399802e900000
kernel config: https://syzkaller.appspot.com/x/.config?x=3d400a47d1416652
dashboard link: https://syzkaller.appspot.com/bug?extid=81af6e9b3c4b8bc874f8
compiler: gcc (GCC) 10.1.0-syz 20200507
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12949b5a900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17b60e46900000
The issue was bisected to:
commit 867d03bc238f62fcd28f287b9da8af5e483baeab
Author: Robert Hancock <hancock(a)sedsystems.ca>
Date: Thu Jun 6 22:28:14 2019 +0000
net: axienet: Add DMA registers to ethtool register dump
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1523f266900000
final oops: https://syzkaller.appspot.com/x/report.txt?x=1723f266900000
console output: https://syzkaller.appspot.com/x/log.txt?x=1323f266900000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+81af6e9b3c4b8bc874f8(a)syzkaller.appspotmail.com
Fixes: 867d03bc238f ("net: axienet: Add DMA registers to ethtool register dump")
IPv6: RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE
IPv6: NLM_F_CREATE should be set when creating new route
IPv6: NLM_F_CREATE should be set when creating new route
general protection fault, probably for non-canonical address 0xdffffc0000000010: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000080-0x0000000000000087]
CPU: 1 PID: 7050 Comm: syz-executor648 Not tainted 5.9.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:nexthop_is_blackhole include/net/nexthop.h:240 [inline]
RIP: 0010:rt6_fill_node+0x1396/0x2940 net/ipv6/route.c:5584
Code: 3c 02 00 0f 85 ef 14 00 00 4d 8b 6d 10 e8 f2 1c 87 fa 49 8d bd 80 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 10 15 00 00 4d 8b ad 80 00 00 00 e8 34 4b 06 01
RSP: 0018:ffffc900063672b0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880a88bd800 RCX: ffffffff86ed2456
RDX: 0000000000000010 RSI: ffffffff86ed248e RDI: 0000000000000080
RBP: ffffc900063673e8 R08: 0000000000000001 R09: ffff8880a88bd847
R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880a8ded940
R13: 0000000000000000 R14: ffff8880a899ea00 R15: 0000000000000000
FS: 00000000010e3880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000300 CR3: 00000000a8efa000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
inet6_rt_notify+0x14c/0x2b0 net/ipv6/route.c:6017
fib6_add_rt2node net/ipv6/ip6_fib.c:1246 [inline]
fib6_add+0x2840/0x3ed0 net/ipv6/ip6_fib.c:1473
__ip6_ins_rt net/ipv6/route.c:1317 [inline]
ip6_route_add+0x8b/0x150 net/ipv6/route.c:3744
inet6_rtm_newroute+0x152/0x160 net/ipv6/route.c:5360
rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5563
netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2470
netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330
netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:671
____sys_sendmsg+0x6e8/0x810 net/socket.c:2353
___sys_sendmsg+0xf3/0x170 net/socket.c:2407
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2440
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x443ef9
Code: e8 8c 07 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 bb 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fff25138308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443ef9
RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003
RBP: 00007fff25138310 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000e25f
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 46e9e8854602a8a3 ]---
RIP: 0010:nexthop_is_blackhole include/net/nexthop.h:240 [inline]
RIP: 0010:rt6_fill_node+0x1396/0x2940 net/ipv6/route.c:5584
Code: 3c 02 00 0f 85 ef 14 00 00 4d 8b 6d 10 e8 f2 1c 87 fa 49 8d bd 80 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 10 15 00 00 4d 8b ad 80 00 00 00 e8 34 4b 06 01
RSP: 0018:ffffc900063672b0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880a88bd800 RCX: ffffffff86ed2456
RDX: 0000000000000010 RSI: ffffffff86ed248e RDI: 0000000000000080
RBP: ffffc900063673e8 R08: 0000000000000001 R09: ffff8880a88bd847
R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880a8ded940
R13: 0000000000000000 R14: ffff8880a899ea00 R15: 0000000000000000
FS: 00000000010e3880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000300 CR3: 00000000a8efa000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller(a)googlegroups.com.
syzbot will keep track of this issue. See:
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For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
5 months, 1 week
general protection fault in nexthop_is_blackhole
by syzbot
Hello,
syzbot found the following issue on:
HEAD commit: c3d8f220 Merge tag 'kbuild-fixes-v5.9' of git://git.kernel..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=11c48c96900000
kernel config: https://syzkaller.appspot.com/x/.config?x=bb68b9e8a8cc842f
dashboard link: https://syzkaller.appspot.com/bug?extid=b2c08a2f5cfef635cc3a
compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14d75e39900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12aea519900000
The issue was bisected to:
commit de47c5d8e11dda678e4354eeb4235e58e92f7cd2
Author: Hariprasad Kelam <hariprasad.kelam(a)gmail.com>
Date: Sat Jun 8 09:00:50 2019 +0000
af_key: make use of BUG_ON macro
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10450972900000
final oops: https://syzkaller.appspot.com/x/report.txt?x=12450972900000
console output: https://syzkaller.appspot.com/x/log.txt?x=14450972900000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b2c08a2f5cfef635cc3a(a)syzkaller.appspotmail.com
Fixes: de47c5d8e11d ("af_key: make use of BUG_ON macro")
IPv6: RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE
IPv6: NLM_F_CREATE should be set when creating new route
IPv6: NLM_F_CREATE should be set when creating new route
general protection fault, probably for non-canonical address 0xdffffc0000000010: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000080-0x0000000000000087]
CPU: 0 PID: 7050 Comm: syz-executor320 Not tainted 5.9.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:nexthop_is_blackhole+0x145/0x250 include/net/nexthop.h:240
Code: 4d fa 49 83 c6 10 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 39 f0 8c fa 49 8b 1e 48 83 eb 80 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 1c f0 8c fa 48 8b 1b e8 e4 4e 02
RSP: 0018:ffffc900061172b8 EFLAGS: 00010202
RAX: 0000000000000010 RBX: 0000000000000080 RCX: ffff888091444300
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffff8727dfc7 R09: ffffed1012299e09
R10: ffffed1012299e09 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff8880919da280 R14: ffff8880a9576610 R15: dffffc0000000000
FS: 0000000001a89880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000300 CR3: 00000000a7555000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rt6_fill_node+0xfe9/0x1f90 net/ipv6/route.c:5584
inet6_rt_notify+0x2ab/0x500 net/ipv6/route.c:6017
fib6_add_rt2node net/ipv6/ip6_fib.c:1246 [inline]
fib6_add+0x203b/0x3bd0 net/ipv6/ip6_fib.c:1473
__ip6_ins_rt net/ipv6/route.c:1317 [inline]
ip6_route_add+0x84/0x120 net/ipv6/route.c:3744
inet6_rtm_newroute+0x22f/0x2150 net/ipv6/route.c:5360
rtnetlink_rcv_msg+0x889/0xd40 net/core/rtnetlink.c:5563
netlink_rcv_skb+0x190/0x3a0 net/netlink/af_netlink.c:2470
netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
netlink_unicast+0x786/0x940 net/netlink/af_netlink.c:1330
netlink_sendmsg+0xa57/0xd70 net/netlink/af_netlink.c:1919
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg net/socket.c:671 [inline]
____sys_sendmsg+0x519/0x800 net/socket.c:2353
___sys_sendmsg net/socket.c:2407 [inline]
__sys_sendmsg+0x2b1/0x360 net/socket.c:2440
do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x443ef9
Code: e8 8c 07 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 bb 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffd64ccd428 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443ef9
RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003
RBP: 00007ffd64ccd430 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000b6f1
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace e62dc7d3de715e59 ]---
RIP: 0010:nexthop_is_blackhole+0x145/0x250 include/net/nexthop.h:240
Code: 4d fa 49 83 c6 10 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 39 f0 8c fa 49 8b 1e 48 83 eb 80 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 1c f0 8c fa 48 8b 1b e8 e4 4e 02
RSP: 0018:ffffc900061172b8 EFLAGS: 00010202
RAX: 0000000000000010 RBX: 0000000000000080 RCX: ffff888091444300
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffff8727dfc7 R09: ffffed1012299e09
R10: ffffed1012299e09 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff8880919da280 R14: ffff8880a9576610 R15: dffffc0000000000
FS: 0000000001a89880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000300 CR3: 00000000a7555000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller(a)googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
5 months, 1 week
INFO: rcu detected stall in exit_group
by syzbot
Hello,
syzbot found the following issue on:
HEAD commit: 34d4ddd3 Merge tag 'linux-kselftest-5.9-rc5' of git://git...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=134173a5900000
kernel config: https://syzkaller.appspot.com/x/.config?x=a9075b36a6ae26c9
dashboard link: https://syzkaller.appspot.com/bug?extid=1a14a0f8ce1a06d4415f
compiler: gcc (GCC) 10.1.0-syz 20200507
userspace arch: i386
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10c6642d900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=132d00fd900000
The issue was bisected to:
commit 32021982a324dce93b4ae00c06213bf45fb319c8
Author: David Howells <dhowells(a)redhat.com>
Date: Thu Nov 1 23:07:26 2018 +0000
hugetlbfs: Convert to fs_context
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16cc40be900000
final oops: https://syzkaller.appspot.com/x/report.txt?x=15cc40be900000
console output: https://syzkaller.appspot.com/x/log.txt?x=11cc40be900000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+1a14a0f8ce1a06d4415f(a)syzkaller.appspotmail.com
Fixes: 32021982a324 ("hugetlbfs: Convert to fs_context")
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1):
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3551 at kernel/sched/core.c:3013 rq_unlock kernel/sched/sched.h:1326 [inline]
WARNING: CPU: 0 PID: 3551 at kernel/sched/core.c:3013 try_invoke_on_locked_down_task+0x214/0x2c0 kernel/sched/core.c:3019
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 3551 Comm: syz-executor649 Not tainted 5.9.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x198/0x1fd lib/dump_stack.c:118
panic+0x347/0x7c0 kernel/panic.c:231
__warn.cold+0x20/0x46 kernel/panic.c:600
report_bug+0x1bd/0x210 lib/bug.c:198
handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234
exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254
asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:try_invoke_on_locked_down_task+0x214/0x2c0 kernel/sched/core.c:3013
Code: 45 31 f6 49 39 c0 74 3a 8b 74 24 38 49 8d 78 18 4c 89 04 24 e8 ad 9a 08 00 4c 8b 04 24 4c 89 c7 e8 01 40 a6 06 e9 29 ff ff ff <0f> 0b e9 86 fe ff ff 4c 89 ee 48 89 ef 41 ff d4 41 89 c6 e9 11 ff
RSP: 0018:ffffc90000007bd8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 1ffff92000000f7d RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff81612ed0 RDI: ffff888099502240
RBP: ffff888099502240 R08: 0000000000000033 R09: ffffffff89bcb4a3
R10: 00000000000005a2 R11: 0000000000000001 R12: ffffffff81612ed0
R13: ffffc90000007d00 R14: ffff8880995025c0 R15: ffff8880ae636c00
rcu_print_task_stall kernel/rcu/tree_stall.h:267 [inline]
print_other_cpu_stall kernel/rcu/tree_stall.h:475 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:634 [inline]
rcu_pending kernel/rcu/tree.c:3637 [inline]
rcu_sched_clock_irq.cold+0x92e/0xccd kernel/rcu/tree.c:2519
update_process_times+0x25/0xa0 kernel/time/timer.c:1710
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:176
tick_sched_timer+0x1d1/0x2a0 kernel/time/tick-sched.c:1328
__run_hrtimer kernel/time/hrtimer.c:1524 [inline]
__hrtimer_run_queues+0x1d5/0xfc0 kernel/time/hrtimer.c:1588
hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1650
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
__sysvec_apic_timer_interrupt+0x142/0x5e0 arch/x86/kernel/apic/apic.c:1097
asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706
</IRQ>
__run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
sysvec_apic_timer_interrupt+0xb2/0xf0 arch/x86/kernel/apic/apic.c:1091
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x4d/0x90 kernel/locking/spinlock.c:191
Code: 48 c7 c0 48 3c b6 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 3c 48 83 3d 62 07 bf 01 00 74 29 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 44 80 58 f9 65 8b 05 7d c9 0a 78
RSP: 0018:ffffc9000c997a20 EFLAGS: 00000282
RAX: 1ffffffff136c789 RBX: 0000000000000282 RCX: 1ffffffff15645e9
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000282
RBP: ffffffff8cb5e0e0 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000017
R13: 0000000000000017 R14: dead000000000100 R15: dffffc0000000000
__debug_check_no_obj_freed lib/debugobjects.c:977 [inline]
debug_check_no_obj_freed+0x20c/0x41c lib/debugobjects.c:998
free_pages_prepare mm/page_alloc.c:1214 [inline]
__free_pages_ok+0x240/0xcd0 mm/page_alloc.c:1471
release_pages+0x5ec/0x17a0 mm/swap.c:881
tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:242 [inline]
tlb_flush_mmu mm/mmu_gather.c:249 [inline]
tlb_finish_mmu+0x165/0x8c0 mm/mmu_gather.c:328
exit_mmap+0x2d1/0x530 mm/mmap.c:3185
__mmput+0x122/0x470 kernel/fork.c:1076
mmput+0x53/0x60 kernel/fork.c:1097
exit_mm kernel/exit.c:483 [inline]
do_exit+0xa8b/0x29f0 kernel/exit.c:793
do_group_exit+0x125/0x310 kernel/exit.c:903
__do_sys_exit_group kernel/exit.c:914 [inline]
__se_sys_exit_group kernel/exit.c:912 [inline]
__ia32_sys_exit_group+0x3a/0x50 kernel/exit.c:912
do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline]
__do_fast_syscall_32+0x60/0x90 arch/x86/entry/common.c:137
do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7f84549
Code: Bad RIP value.
RSP: 002b:00000000ffd39f7c EFLAGS: 00000292 ORIG_RAX: 00000000000000fc
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000080ed2b8
RDX: 0000000000000000 RSI: 00000000080d6f3c RDI: 00000000080ed2c0
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller(a)googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
5 months, 1 week
INFO: rcu detected stall in security_file_open (3)
by syzbot
Hello,
syzbot found the following issue on:
HEAD commit: fb0155a0 Merge tag 'nfs-for-5.9-3' of git://git.linux-nfs...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=10b007cf900000
kernel config: https://syzkaller.appspot.com/x/.config?x=41b736b7ce1b3ea4
dashboard link: https://syzkaller.appspot.com/bug?extid=d2b6e8cc299748fecf25
compiler: gcc (GCC) 10.1.0-syz 20200507
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1249c717900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1048d9e3900000
The issue was bisected to:
commit c9d8f5f0692d5960ed50970ffe63756fb8f96cdb
Author: Kirill Tkhai <ktkhai(a)virtuozzo.com>
Date: Fri Nov 9 10:33:27 2018 +0000
fuse: Protect fi->nlookup with fi->lock
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11af769d900000
final oops: https://syzkaller.appspot.com/x/report.txt?x=13af769d900000
console output: https://syzkaller.appspot.com/x/log.txt?x=15af769d900000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d2b6e8cc299748fecf25(a)syzkaller.appspotmail.com
Fixes: c9d8f5f0692d ("fuse: Protect fi->nlookup with fi->lock")
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1):
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3922 at kernel/sched/core.c:3013 rq_unlock kernel/sched/sched.h:1326 [inline]
WARNING: CPU: 0 PID: 3922 at kernel/sched/core.c:3013 try_invoke_on_locked_down_task+0x21d/0x2f0 kernel/sched/core.c:3019
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 3922 Comm: systemd-udevd Not tainted 5.9.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x198/0x1fd lib/dump_stack.c:118
panic+0x382/0x7fb kernel/panic.c:231
__warn.cold+0x20/0x4b kernel/panic.c:600
report_bug+0x1bd/0x210 lib/bug.c:198
handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234
exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254
asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:try_invoke_on_locked_down_task+0x21d/0x2f0 kernel/sched/core.c:3013
Code: 45 31 f6 49 39 c0 74 3a 8b 74 24 38 49 8d 78 18 4c 89 04 24 e8 a4 e7 08 00 4c 8b 04 24 4c 89 c7 e8 28 ab d6 06 e9 20 ff ff ff <0f> 0b e9 7d fe ff ff 4c 89 ee 48 89 ef 41 ff d4 41 89 c6 e9 08 ff
RSP: 0018:ffffc90000007be0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 1ffff92000000f7e RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8162da10 RDI: ffff8880a61a2440
RBP: ffff8880a61a2440 R08: 0000000000000033 R09: ffffffff8a05ae03
R10: 000000000000062e R11: 0000000000000001 R12: ffffffff8162da10
R13: ffffc90000007d08 R14: ffff8880a61a2440 R15: 0000000000000000
rcu_print_task_stall kernel/rcu/tree_stall.h:267 [inline]
print_other_cpu_stall kernel/rcu/tree_stall.h:475 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:634 [inline]
rcu_pending kernel/rcu/tree.c:3639 [inline]
rcu_sched_clock_irq.cold+0x97e/0xdfd kernel/rcu/tree.c:2521
update_process_times+0x25/0xa0 kernel/time/timer.c:1710
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:176
tick_sched_timer+0x1d1/0x2a0 kernel/time/tick-sched.c:1328
__run_hrtimer kernel/time/hrtimer.c:1524 [inline]
__hrtimer_run_queues+0x1d5/0xfc0 kernel/time/hrtimer.c:1588
hrtimer_interrupt+0x334/0x940 kernel/time/hrtimer.c:1650
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
__sysvec_apic_timer_interrupt+0x147/0x5f0 arch/x86/kernel/apic/apic.c:1097
asm_call_irq_on_stack+0xf/0x20
</IRQ>
__run_sysvec_on_irqstack arch/x86/include/asm/irq_stack.h:37 [inline]
run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:89 [inline]
sysvec_apic_timer_interrupt+0xb2/0xf0 arch/x86/kernel/apic/apic.c:1091
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x9/0x60 kernel/kcov.c:197
Code: 5d be 03 00 00 00 e9 76 af 49 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 65 48 8b 14 25 c0 fe 01 00 <65> 8b 05 e0 bf 8b 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74
RSP: 0018:ffffc90000f075a8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000004 RCX: ffffffff838a0be7
RDX: ffff88809c62c4c0 RSI: ffff88809c62c4c0 RDI: 0000000000000005
RBP: ffff8880a601de80 R08: 0000000000000001 R09: ffffffff8d5f79c7
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000183 R14: dffffc0000000000 R15: 0000000000000000
tomoyo_domain_quota_is_ok+0x31a/0x550 security/tomoyo/util.c:1070
tomoyo_supervisor+0x2f2/0xef0 security/tomoyo/common.c:2089
tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
tomoyo_path_permission security/tomoyo/file.c:587 [inline]
tomoyo_path_permission+0x270/0x3a0 security/tomoyo/file.c:573
tomoyo_check_open_permission+0x33e/0x380 security/tomoyo/file.c:777
tomoyo_file_open security/tomoyo/tomoyo.c:313 [inline]
tomoyo_file_open+0xa3/0xd0 security/tomoyo/tomoyo.c:308
security_file_open+0x52/0x4f0 security/security.c:1574
do_dentry_open+0x358/0x11b0 fs/open.c:804
do_open fs/namei.c:3251 [inline]
path_openat+0x1b9a/0x2730 fs/namei.c:3368
do_filp_open+0x17e/0x3c0 fs/namei.c:3395
do_sys_openat2+0x16d/0x420 fs/open.c:1168
do_sys_open fs/open.c:1184 [inline]
__do_sys_open fs/open.c:1192 [inline]
__se_sys_open fs/open.c:1188 [inline]
__x64_sys_open+0x119/0x1c0 fs/open.c:1188
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fb405960840
Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24
RSP: 002b:00007fff26dc0bd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fff26dc0c70 RCX: 00007fb405960840
RDX: 0000560daddc7fe3 RSI: 00000000000a0800 RDI: 0000560daede0670
RBP: 00007fff26dc1100 R08: 0000560daddc7670 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff26dc0d80
R13: 0000560daed2da60 R14: 0000560daedeeef0 R15: 00007fff26dc0c50
Kernel Offset: disabled
Rebooting in 86400 seconds..
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller(a)googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
5 months, 1 week
Does batman choose DHCP server by random?
by MK
Hi meshing list.
We are running a batman 2020.2 based mesh network.
Clients connect to one gateway but pull IPv4 addresses from _another_
gateway. This leads to packets flowing between gateways instead of
leaving the mesh on the shortest route possible.
Is this intended behaviour? Is it random? Is there a config option to
alter this packet flow?
gw_mode is set to "server" on all gateways, bandwith announcement is the
same on all gateways (10/10 MBit). So no imbalance here.
Regards,
Martin
6 months, 2 weeks
[PATCH v2] net: bridge: mcast: rename br_ip's u member to dst
by Linus Lüssing
From: Nikolay Aleksandrov <nikolay(a)nvidia.com>
Since now we have src in br_ip, u no longer makes sense so rename
it to dst. No functional changes.
v2: fix build with CONFIG_BATMAN_ADV_MCAST
CC: Marek Lindner <mareklindner(a)neomailbox.ch>
CC: Simon Wunderlich <sw(a)simonwunderlich.de>
CC: Antonio Quartulli <a(a)unstable.cc>
CC: Sven Eckelmann <sven(a)narfation.org>
CC: b.a.t.m.a.n(a)lists.open-mesh.org
Signed-off-by: Nikolay Aleksandrov <nikolay(a)nvidia.com>
[linus.luessing(a)c0d3.blue: Add compat code]
Signed-off-by: Linus Lüssing <linus.luessing(a)c0d3.blue>
---
Compat v2:
* added BUILD_BUG_ON size+offset checks as suggested by Sven (thanks!)
compat-include/linux/if_bridge.h | 56 ++++++++++++++++++++++++++++++++
net/batman-adv/multicast.c | 14 ++++----
2 files changed, 63 insertions(+), 7 deletions(-)
create mode 100644 compat-include/linux/if_bridge.h
diff --git a/compat-include/linux/if_bridge.h b/compat-include/linux/if_bridge.h
new file mode 100644
index 00000000..45585003
--- /dev/null
+++ b/compat-include/linux/if_bridge.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2007-2020 B.A.T.M.A.N. contributors:
+ *
+ * Marek Lindner, Simon Wunderlich
+ *
+ * This file contains macros for maintaining compatibility with older versions
+ * of the Linux kernel.
+ */
+
+#ifndef _NET_BATMAN_ADV_COMPAT_LINUX_IF_BRIDGE_H_
+#define _NET_BATMAN_ADV_COMPAT_LINUX_IF_BRIDGE_H_
+
+#include <linux/version.h>
+#include_next <linux/if_bridge.h>
+
+#if LINUX_VERSION_IS_LESS(5, 10, 0)
+
+struct batadv_br_ip {
+ union {
+ __be32 ip4;
+#if IS_ENABLED(CONFIG_IPV6)
+ struct in6_addr ip6;
+#endif
+ } dst;
+ __be16 proto;
+ __u16 vid;
+};
+
+struct batadv_br_ip_list {
+ struct list_head list;
+ struct batadv_br_ip addr;
+};
+
+/* "static" dropped to force compiler to evaluate it as part of multicast.c
+ * might need to be added again and then called in some kind of dummy
+ * compat.c in case this header is included in multiple files.
+ */
+inline void __batadv_br_ip_list_check(void)
+{
+ BUILD_BUG_ON(sizeof(struct batadv_br_ip_list) != sizeof(struct br_ip_list));
+ BUILD_BUG_ON(offsetof(struct batadv_br_ip_list, list) != offsetof(struct br_ip_list, list));
+ BUILD_BUG_ON(offsetof(struct batadv_br_ip_list, addr) != offsetof(struct br_ip_list, addr));
+
+ BUILD_BUG_ON(sizeof(struct batadv_br_ip) != sizeof(struct br_ip));
+ BUILD_BUG_ON(offsetof(struct batadv_br_ip, dst.ip4) != offsetof(struct br_ip, u.ip4));
+ BUILD_BUG_ON(offsetof(struct batadv_br_ip, dst.ip6) != offsetof(struct br_ip, u.ip6));
+ BUILD_BUG_ON(offsetof(struct batadv_br_ip, proto) != offsetof(struct br_ip, proto));
+ BUILD_BUG_ON(offsetof(struct batadv_br_ip, vid) != offsetof(struct br_ip, vid));
+}
+
+#define br_ip batadv_br_ip
+#define br_ip_list batadv_br_ip_list
+
+#endif /* LINUX_VERSION_IS_LESS(5, 10, 0) */
+
+#endif /* _NET_BATMAN_ADV_COMPAT_LINUX_IF_BRIDGE_H_ */
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index 0746fe2c..9af99c39 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -221,7 +221,7 @@ static u8 batadv_mcast_mla_rtr_flags_bridge_get(struct batadv_priv *bat_priv,
* address here, only IPv6 ones
*/
if (br_ip_entry->addr.proto == htons(ETH_P_IPV6) &&
- ipv6_addr_is_ll_all_routers(&br_ip_entry->addr.u.ip6))
+ ipv6_addr_is_ll_all_routers(&br_ip_entry->addr.dst.ip6))
flags &= ~BATADV_MCAST_WANT_NO_RTR6;
list_del(&br_ip_entry->list);
@@ -562,10 +562,10 @@ batadv_mcast_mla_softif_get(struct net_device *dev,
static void batadv_mcast_mla_br_addr_cpy(char *dst, const struct br_ip *src)
{
if (src->proto == htons(ETH_P_IP))
- ip_eth_mc_map(src->u.ip4, dst);
+ ip_eth_mc_map(src->dst.ip4, dst);
#if IS_ENABLED(CONFIG_IPV6)
else if (src->proto == htons(ETH_P_IPV6))
- ipv6_eth_mc_map(&src->u.ip6, dst);
+ ipv6_eth_mc_map(&src->dst.ip6, dst);
#endif
else
eth_zero_addr(dst);
@@ -609,11 +609,11 @@ static int batadv_mcast_mla_bridge_get(struct net_device *dev,
continue;
if (tvlv_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES &&
- ipv4_is_local_multicast(br_ip_entry->addr.u.ip4))
+ ipv4_is_local_multicast(br_ip_entry->addr.dst.ip4))
continue;
if (!(tvlv_flags & BATADV_MCAST_WANT_NO_RTR4) &&
- !ipv4_is_local_multicast(br_ip_entry->addr.u.ip4))
+ !ipv4_is_local_multicast(br_ip_entry->addr.dst.ip4))
continue;
}
@@ -623,11 +623,11 @@ static int batadv_mcast_mla_bridge_get(struct net_device *dev,
continue;
if (tvlv_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES &&
- ipv6_addr_is_ll_all_nodes(&br_ip_entry->addr.u.ip6))
+ ipv6_addr_is_ll_all_nodes(&br_ip_entry->addr.dst.ip6))
continue;
if (!(tvlv_flags & BATADV_MCAST_WANT_NO_RTR6) &&
- IPV6_ADDR_MC_SCOPE(&br_ip_entry->addr.u.ip6) >
+ IPV6_ADDR_MC_SCOPE(&br_ip_entry->addr.dst.ip6) >
IPV6_ADDR_SCOPE_LINKLOCAL)
continue;
}
--
2.28.0
6 months, 3 weeks
[PATCH] net: bridge: mcast: rename br_ip's u member to dst
by Linus Lüssing
From: Nikolay Aleksandrov <nikolay(a)nvidia.com>
Since now we have src in br_ip, u no longer makes sense so rename
it to dst. No functional changes.
v2: fix build with CONFIG_BATMAN_ADV_MCAST
CC: Marek Lindner <mareklindner(a)neomailbox.ch>
CC: Simon Wunderlich <sw(a)simonwunderlich.de>
CC: Antonio Quartulli <a(a)unstable.cc>
CC: Sven Eckelmann <sven(a)narfation.org>
CC: b.a.t.m.a.n(a)lists.open-mesh.org
Signed-off-by: Nikolay Aleksandrov <nikolay(a)nvidia.com>
[linus.luessing(a)c0d3.blue: Add compat code]
Signed-off-by: Linus Lüssing <linus.luessing(a)c0d3.blue>
---
compat-include/linux/if_bridge.h | 39 ++++++++++++++++++++++++++++++++
net/batman-adv/multicast.c | 14 ++++++------
2 files changed, 46 insertions(+), 7 deletions(-)
create mode 100644 compat-include/linux/if_bridge.h
diff --git a/compat-include/linux/if_bridge.h b/compat-include/linux/if_bridge.h
new file mode 100644
index 00000000..c4f9bc08
--- /dev/null
+++ b/compat-include/linux/if_bridge.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2007-2020 B.A.T.M.A.N. contributors:
+ *
+ * Marek Lindner, Simon Wunderlich
+ *
+ * This file contains macros for maintaining compatibility with older versions
+ * of the Linux kernel.
+ */
+
+#ifndef _NET_BATMAN_ADV_COMPAT_LINUX_IF_BRIDGE_H_
+#define _NET_BATMAN_ADV_COMPAT_LINUX_IF_BRIDGE_H_
+
+#include <linux/version.h>
+#include_next <linux/if_bridge.h>
+
+#if LINUX_VERSION_IS_LESS(5, 10, 0)
+
+struct batadv_br_ip {
+ union {
+ __be32 ip4;
+#if IS_ENABLED(CONFIG_IPV6)
+ struct in6_addr ip6;
+#endif
+ } dst;
+ __be16 proto;
+ __u16 vid;
+};
+
+struct batadv_br_ip_list {
+ struct list_head list;
+ struct batadv_br_ip addr;
+};
+
+#define br_ip batadv_br_ip
+#define br_ip_list batadv_br_ip_list
+
+#endif /* LINUX_VERSION_IS_LESS(5, 10, 0) */
+
+#endif /* _NET_BATMAN_ADV_COMPAT_LINUX_IF_BRIDGE_H_ */
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index 0746fe2c..9af99c39 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -221,7 +221,7 @@ static u8 batadv_mcast_mla_rtr_flags_bridge_get(struct batadv_priv *bat_priv,
* address here, only IPv6 ones
*/
if (br_ip_entry->addr.proto == htons(ETH_P_IPV6) &&
- ipv6_addr_is_ll_all_routers(&br_ip_entry->addr.u.ip6))
+ ipv6_addr_is_ll_all_routers(&br_ip_entry->addr.dst.ip6))
flags &= ~BATADV_MCAST_WANT_NO_RTR6;
list_del(&br_ip_entry->list);
@@ -562,10 +562,10 @@ batadv_mcast_mla_softif_get(struct net_device *dev,
static void batadv_mcast_mla_br_addr_cpy(char *dst, const struct br_ip *src)
{
if (src->proto == htons(ETH_P_IP))
- ip_eth_mc_map(src->u.ip4, dst);
+ ip_eth_mc_map(src->dst.ip4, dst);
#if IS_ENABLED(CONFIG_IPV6)
else if (src->proto == htons(ETH_P_IPV6))
- ipv6_eth_mc_map(&src->u.ip6, dst);
+ ipv6_eth_mc_map(&src->dst.ip6, dst);
#endif
else
eth_zero_addr(dst);
@@ -609,11 +609,11 @@ static int batadv_mcast_mla_bridge_get(struct net_device *dev,
continue;
if (tvlv_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES &&
- ipv4_is_local_multicast(br_ip_entry->addr.u.ip4))
+ ipv4_is_local_multicast(br_ip_entry->addr.dst.ip4))
continue;
if (!(tvlv_flags & BATADV_MCAST_WANT_NO_RTR4) &&
- !ipv4_is_local_multicast(br_ip_entry->addr.u.ip4))
+ !ipv4_is_local_multicast(br_ip_entry->addr.dst.ip4))
continue;
}
@@ -623,11 +623,11 @@ static int batadv_mcast_mla_bridge_get(struct net_device *dev,
continue;
if (tvlv_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES &&
- ipv6_addr_is_ll_all_nodes(&br_ip_entry->addr.u.ip6))
+ ipv6_addr_is_ll_all_nodes(&br_ip_entry->addr.dst.ip6))
continue;
if (!(tvlv_flags & BATADV_MCAST_WANT_NO_RTR6) &&
- IPV6_ADDR_MC_SCOPE(&br_ip_entry->addr.u.ip6) >
+ IPV6_ADDR_MC_SCOPE(&br_ip_entry->addr.dst.ip6) >
IPV6_ADDR_SCOPE_LINKLOCAL)
continue;
}
--
2.28.0
6 months, 3 weeks
[PATCH 1/2] batman-adv: Re-add compat-patches infrastructure
by Sven Eckelmann
Some patches were added again in the mainline kernel which make it rather
hard to allow building of the unmodified batman-adv sources against older
kernel versions.
Just switch again to the old build infrastructure again. It creates a
copy of the sources in net/batman-adv which can be patched and then
compiled+linked to create build/net/batman-adv/batman-adv.ko
Signed-off-by: Sven Eckelmann <sven(a)narfation.org>
---
.gitignore | 13 +-----------
Makefile | 38 +++++++++++++++++++++++++++-------
compat-patches/README | 27 ++++++++++++++++++++++++
compat-patches/replacements.sh | 5 +++++
4 files changed, 64 insertions(+), 19 deletions(-)
create mode 100644 compat-patches/README
create mode 100755 compat-patches/replacements.sh
diff --git a/.gitignore b/.gitignore
index 4df7f60a..1a8dbc0d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,14 +1,3 @@
-/.cache.mk
/compat-autoconf.h
/compat-autoconf.h.tmp
-/compat-sources/**/.*
-/compat-sources/**/*.o
-/modules.order
-/Module.symvers
-/net/batman-adv/batman-adv.ko
-/net/batman-adv/.batman-adv.ko.cmd
-/net/batman-adv/batman-adv.mod.c
-/net/batman-adv/modules.order
-/net/batman-adv/*.o
-/net/batman-adv/.*.o.cmd
-/.tmp_versions
+/build/
diff --git a/Makefile b/Makefile
index afdbc03c..25c75f46 100644
--- a/Makefile
+++ b/Makefile
@@ -24,6 +24,7 @@ export CONFIG_BATMAN_ADV_SYSFS=n
export CONFIG_BATMAN_ADV_TRACING=n
PWD:=$(shell pwd)
+BUILD_DIR=$(PWD)/build
KERNELPATH ?= /lib/modules/$(shell uname -r)/build
# sanity check: does KERNELPATH exist?
ifeq ($(shell cd $(KERNELPATH) && pwd),)
@@ -32,17 +33,24 @@ endif
export KERNELPATH
RM ?= rm -f
+MKDIR := mkdir -p
+PATCH_FLAGS = --batch --fuzz=0 --forward --strip=1 --unified --version-control=never -g0 --remove-empty-files --no-backup-if-mismatch --reject-file=-
+PATCH := patch $(PATCH_FLAGS) -i
CP := cp -fpR
LN := ln -sf
DEPMOD := depmod -a
+SOURCE = $(wildcard net/batman-adv/*.[ch]) net/batman-adv/Makefile
+SOURCE_BUILD = $(wildcard $(BUILD_DIR)/net/batman-adv/*.[ch]) $(BUILD_DIR)/net/batman-adv/Makefile
+SOURCE_STAMP = $(BUILD_DIR)/net/batman-adv/.compat-prepared
+
REVISION= $(shell if [ -d "$(PWD)/.git" ]; then \
echo $$(git --git-dir="$(PWD)/.git" describe --always --dirty --match "v*" |sed 's/^v//' 2> /dev/null || echo "[unknown]"); \
fi)
NOSTDINC_FLAGS += \
- -I$(PWD)/compat-include/ \
- -I$(PWD)/include/ \
- -include $(PWD)/compat.h \
+ -I$(PWD)/../compat-include/ \
+ -I$(PWD)/../include/ \
+ -include $(PWD)/../compat.h \
$(CFLAGS)
ifneq ($(REVISION),)
@@ -55,8 +63,8 @@ export batman-adv-y
BUILD_FLAGS := \
- M=$(PWD) \
- PWD=$(PWD) \
+ M=$(BUILD_DIR) \
+ PWD=$(BUILD_DIR) \
REVISION=$(REVISION) \
CONFIG_BATMAN_ADV=m \
CONFIG_BATMAN_ADV_DEBUG=$(CONFIG_BATMAN_ADV_DEBUG) \
@@ -70,18 +78,34 @@ BUILD_FLAGS := \
CONFIG_BATMAN_ADV_BATMAN_V=$(CONFIG_BATMAN_ADV_BATMAN_V) \
INSTALL_MOD_DIR=updates/
-all: config
+all: config $(SOURCE_STAMP)
$(MAKE) -C $(KERNELPATH) $(BUILD_FLAGS) modules
clean:
$(RM) compat-autoconf.h*
$(MAKE) -C $(KERNELPATH) $(BUILD_FLAGS) clean
-install: config
+install: config $(SOURCE_STAMP)
$(MAKE) -C $(KERNELPATH) $(BUILD_FLAGS) modules_install
$(DEPMOD)
config:
$(PWD)/gen-compat-autoconf.sh $(PWD)/compat-autoconf.h
+$(SOURCE_STAMP): $(SOURCE) compat-patches/* compat-patches/replacements.sh
+ $(MKDIR) $(BUILD_DIR)/net/batman-adv/
+ @$(LN) ../Makefile $(BUILD_DIR)/Makefile
+ @$(RM) $(SOURCE_BUILD)
+ @$(CP) $(SOURCE) $(BUILD_DIR)/net/batman-adv/
+ @set -e; \
+ patches="$$(ls -1 compat-patches/|grep '.patch$$'|sort)"; \
+ for i in $${patches}; do \
+ echo ' COMPAT_PATCH '$${i};\
+ cd $(BUILD_DIR); \
+ $(PATCH) ../compat-patches/$${i}; \
+ cd - > /dev/null; \
+ done
+ compat-patches/replacements.sh
+ touch $(SOURCE_STAMP)
+
.PHONY: all clean install config
diff --git a/compat-patches/README b/compat-patches/README
new file mode 100644
index 00000000..55cb0fe2
--- /dev/null
+++ b/compat-patches/README
@@ -0,0 +1,27 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+WARNING
+=======
+
+Please avoid using the compat-patches/ to implement support for old kernels.
+This should be the last resort.
+
+ * it is nearly always possible to use compat-includes/ to do the same with a
+ lot less problems
+
+ * maintaining these patches is *censored*
+
+GENERATING A PATCH
+==================
+
+If it not possible to avoid a patch then please make the patch as small as
+possible. Even refactor the code which has to be patched to reduce the
+size/number of the changes.
+
+Please use git-format-patches to generate them and order them inside via the
+XXXX- prefix before the patch name.
+
+ git format-patch --no-stat --full-index --no-renames --binary \
+ --diff-algorithm=histogram --no-signature \
+ --format=format:'From: %an <%ae>%nDate: %aD%nSubject: %B' \
+ -1
diff --git a/compat-patches/replacements.sh b/compat-patches/replacements.sh
new file mode 100755
index 00000000..1b64e5c2
--- /dev/null
+++ b/compat-patches/replacements.sh
@@ -0,0 +1,5 @@
+#! /bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2007-2018 B.A.T.M.A.N. contributors
+
+set -e
--
2.28.0
6 months, 3 weeks
KASAN: vmalloc-out-of-bounds Read in bpf_trace_run5
by syzbot
Hello,
syzbot found the following issue on:
HEAD commit: b10b8ad8 Add linux-next specific files for 20200921
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=1371eb1d900000
kernel config: https://syzkaller.appspot.com/x/.config?x=3cf0782933432b43
dashboard link: https://syzkaller.appspot.com/bug?extid=856297c51366950e115e
compiler: gcc (GCC) 10.1.0-syz 20200507
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1510d3d9900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1328ecbb900000
The issue was bisected to:
commit 1e6d690b9334b7e1b31d25fd8d93e980e449a5f9
Author: Song Liu <songliubraving(a)fb.com>
Date: Thu Nov 17 23:24:39 2016 +0000
md/r5cache: caching phase of r5cache
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=109283d9900000
final oops: https://syzkaller.appspot.com/x/report.txt?x=129283d9900000
console output: https://syzkaller.appspot.com/x/log.txt?x=149283d9900000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+856297c51366950e115e(a)syzkaller.appspotmail.com
Fixes: 1e6d690b9334 ("md/r5cache: caching phase of r5cache")
==================================================================
BUG: KASAN: vmalloc-out-of-bounds in __bpf_trace_run kernel/trace/bpf_trace.c:1937 [inline]
BUG: KASAN: vmalloc-out-of-bounds in bpf_trace_run5+0x401/0x410 kernel/trace/bpf_trace.c:1977
Read of size 8 at addr ffffc90000e80030 by task rs:main Q:Reg/6567
CPU: 1 PID: 6567 Comm: rs:main Q:Reg Not tainted 5.9.0-rc5-next-20200921-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x198/0x1fb lib/dump_stack.c:118
print_address_description.constprop.0.cold+0x5/0x497 mm/kasan/report.c:385
__kasan_report mm/kasan/report.c:545 [inline]
kasan_report.cold+0x1f/0x37 mm/kasan/report.c:562
__bpf_trace_run kernel/trace/bpf_trace.c:1937 [inline]
bpf_trace_run5+0x401/0x410 kernel/trace/bpf_trace.c:1977
__bpf_trace_ext4_journal_start+0x142/0x180 include/trace/events/ext4.h:1788
__traceiter_ext4_journal_start+0x83/0xd0 include/trace/events/ext4.h:1788
trace_ext4_journal_start include/trace/events/ext4.h:1788 [inline]
__ext4_journal_start_sb+0x228/0x440 fs/ext4/ext4_jbd2.c:96
__ext4_journal_start fs/ext4/ext4_jbd2.h:328 [inline]
ext4_dirty_inode+0xbc/0x130 fs/ext4/inode.c:5850
__mark_inode_dirty+0x888/0x1190 fs/fs-writeback.c:2260
generic_update_time+0x21c/0x370 fs/inode.c:1764
update_time fs/inode.c:1777 [inline]
file_update_time+0x434/0x520 fs/inode.c:1992
file_modified fs/inode.c:2015 [inline]
file_modified+0x7d/0xa0 fs/inode.c:2000
ext4_write_checks fs/ext4/file.c:248 [inline]
ext4_buffered_write_iter+0xf9/0x4a0 fs/ext4/file.c:264
ext4_file_write_iter+0x1f3/0x13e0 fs/ext4/file.c:660
call_write_iter include/linux/fs.h:1895 [inline]
new_sync_write+0x426/0x650 fs/read_write.c:517
vfs_write+0x57d/0x700 fs/read_write.c:595
ksys_write+0x12d/0x250 fs/read_write.c:648
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fed08e3a1cd
Code: c2 20 00 00 75 10 b8 01 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ae fc ff ff 48 89 04 24 b8 01 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 f7 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007fed063f5590 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fecfc0238a0 RCX: 00007fed08e3a1cd
RDX: 0000000000000dd6 RSI: 00007fecfc0238a0 RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fecfc023620
R13: 00007fed063f55b0 R14: 0000560a2b025360 R15: 0000000000000dd6
Memory state around the buggy address:
ffffc90000e7ff00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
ffffc90000e7ff80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
>ffffc90000e80000: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
^
ffffc90000e80080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
ffffc90000e80100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
==================================================================
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller(a)googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
6 months, 3 weeks
[PATCH net-next v2 06/16] net: bridge: mcast: rename br_ip's u member to dst
by Nikolay Aleksandrov
From: Nikolay Aleksandrov <nikolay(a)nvidia.com>
Since now we have src in br_ip, u no longer makes sense so rename
it to dst. No functional changes.
v2: fix build with CONFIG_BATMAN_ADV_MCAST
CC: Marek Lindner <mareklindner(a)neomailbox.ch>
CC: Simon Wunderlich <sw(a)simonwunderlich.de>
CC: Antonio Quartulli <a(a)unstable.cc>
CC: Sven Eckelmann <sven(a)narfation.org>
CC: b.a.t.m.a.n(a)lists.open-mesh.org
Signed-off-by: Nikolay Aleksandrov <nikolay(a)nvidia.com>
---
include/linux/if_bridge.h | 2 +-
net/batman-adv/multicast.c | 14 +++++++-------
net/bridge/br_mdb.c | 16 ++++++++--------
net/bridge/br_multicast.c | 26 +++++++++++++-------------
4 files changed, 29 insertions(+), 29 deletions(-)
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index 4fb9c4954f3a..556caed00258 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -25,7 +25,7 @@ struct br_ip {
#if IS_ENABLED(CONFIG_IPV6)
struct in6_addr ip6;
#endif
- } u;
+ } dst;
__be16 proto;
__u16 vid;
};
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index 1622c3f5898f..7dda0f7b3d96 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -220,7 +220,7 @@ static u8 batadv_mcast_mla_rtr_flags_bridge_get(struct batadv_priv *bat_priv,
* address here, only IPv6 ones
*/
if (br_ip_entry->addr.proto == htons(ETH_P_IPV6) &&
- ipv6_addr_is_ll_all_routers(&br_ip_entry->addr.u.ip6))
+ ipv6_addr_is_ll_all_routers(&br_ip_entry->addr.dst.ip6))
flags &= ~BATADV_MCAST_WANT_NO_RTR6;
list_del(&br_ip_entry->list);
@@ -561,10 +561,10 @@ batadv_mcast_mla_softif_get(struct net_device *dev,
static void batadv_mcast_mla_br_addr_cpy(char *dst, const struct br_ip *src)
{
if (src->proto == htons(ETH_P_IP))
- ip_eth_mc_map(src->u.ip4, dst);
+ ip_eth_mc_map(src->dst.ip4, dst);
#if IS_ENABLED(CONFIG_IPV6)
else if (src->proto == htons(ETH_P_IPV6))
- ipv6_eth_mc_map(&src->u.ip6, dst);
+ ipv6_eth_mc_map(&src->dst.ip6, dst);
#endif
else
eth_zero_addr(dst);
@@ -608,11 +608,11 @@ static int batadv_mcast_mla_bridge_get(struct net_device *dev,
continue;
if (tvlv_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES &&
- ipv4_is_local_multicast(br_ip_entry->addr.u.ip4))
+ ipv4_is_local_multicast(br_ip_entry->addr.dst.ip4))
continue;
if (!(tvlv_flags & BATADV_MCAST_WANT_NO_RTR4) &&
- !ipv4_is_local_multicast(br_ip_entry->addr.u.ip4))
+ !ipv4_is_local_multicast(br_ip_entry->addr.dst.ip4))
continue;
}
@@ -622,11 +622,11 @@ static int batadv_mcast_mla_bridge_get(struct net_device *dev,
continue;
if (tvlv_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES &&
- ipv6_addr_is_ll_all_nodes(&br_ip_entry->addr.u.ip6))
+ ipv6_addr_is_ll_all_nodes(&br_ip_entry->addr.dst.ip6))
continue;
if (!(tvlv_flags & BATADV_MCAST_WANT_NO_RTR6) &&
- IPV6_ADDR_MC_SCOPE(&br_ip_entry->addr.u.ip6) >
+ IPV6_ADDR_MC_SCOPE(&br_ip_entry->addr.dst.ip6) >
IPV6_ADDR_SCOPE_LINKLOCAL)
continue;
}
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 269ffd2e549b..a1ff0a372185 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -70,10 +70,10 @@ static void __mdb_entry_to_br_ip(struct br_mdb_entry *entry, struct br_ip *ip)
ip->vid = entry->vid;
ip->proto = entry->addr.proto;
if (ip->proto == htons(ETH_P_IP))
- ip->u.ip4 = entry->addr.u.ip4;
+ ip->dst.ip4 = entry->addr.u.ip4;
#if IS_ENABLED(CONFIG_IPV6)
else
- ip->u.ip6 = entry->addr.u.ip6;
+ ip->dst.ip6 = entry->addr.u.ip6;
#endif
}
@@ -158,10 +158,10 @@ static int __mdb_fill_info(struct sk_buff *skb,
e.ifindex = ifindex;
e.vid = mp->addr.vid;
if (mp->addr.proto == htons(ETH_P_IP))
- e.addr.u.ip4 = mp->addr.u.ip4;
+ e.addr.u.ip4 = mp->addr.dst.ip4;
#if IS_ENABLED(CONFIG_IPV6)
if (mp->addr.proto == htons(ETH_P_IPV6))
- e.addr.u.ip6 = mp->addr.u.ip6;
+ e.addr.u.ip6 = mp->addr.dst.ip6;
#endif
e.addr.proto = mp->addr.proto;
nest_ent = nla_nest_start_noflag(skb,
@@ -474,10 +474,10 @@ static void br_mdb_switchdev_host_port(struct net_device *dev,
};
if (mp->addr.proto == htons(ETH_P_IP))
- ip_eth_mc_map(mp->addr.u.ip4, mdb.addr);
+ ip_eth_mc_map(mp->addr.dst.ip4, mdb.addr);
#if IS_ENABLED(CONFIG_IPV6)
else
- ipv6_eth_mc_map(&mp->addr.u.ip6, mdb.addr);
+ ipv6_eth_mc_map(&mp->addr.dst.ip6, mdb.addr);
#endif
mdb.obj.orig_dev = dev;
@@ -520,10 +520,10 @@ void br_mdb_notify(struct net_device *dev,
if (pg) {
if (mp->addr.proto == htons(ETH_P_IP))
- ip_eth_mc_map(mp->addr.u.ip4, mdb.addr);
+ ip_eth_mc_map(mp->addr.dst.ip4, mdb.addr);
#if IS_ENABLED(CONFIG_IPV6)
else
- ipv6_eth_mc_map(&mp->addr.u.ip6, mdb.addr);
+ ipv6_eth_mc_map(&mp->addr.dst.ip6, mdb.addr);
#endif
mdb.obj.orig_dev = pg->port->dev;
switch (type) {
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index a899c22c8f57..e1fb822b9ddb 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -86,7 +86,7 @@ static struct net_bridge_mdb_entry *br_mdb_ip4_get(struct net_bridge *br,
struct br_ip br_dst;
memset(&br_dst, 0, sizeof(br_dst));
- br_dst.u.ip4 = dst;
+ br_dst.dst.ip4 = dst;
br_dst.proto = htons(ETH_P_IP);
br_dst.vid = vid;
@@ -101,7 +101,7 @@ static struct net_bridge_mdb_entry *br_mdb_ip6_get(struct net_bridge *br,
struct br_ip br_dst;
memset(&br_dst, 0, sizeof(br_dst));
- br_dst.u.ip6 = *dst;
+ br_dst.dst.ip6 = *dst;
br_dst.proto = htons(ETH_P_IPV6);
br_dst.vid = vid;
@@ -126,11 +126,11 @@ struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
switch (skb->protocol) {
case htons(ETH_P_IP):
- ip.u.ip4 = ip_hdr(skb)->daddr;
+ ip.dst.ip4 = ip_hdr(skb)->daddr;
break;
#if IS_ENABLED(CONFIG_IPV6)
case htons(ETH_P_IPV6):
- ip.u.ip6 = ipv6_hdr(skb)->daddr;
+ ip.dst.ip6 = ipv6_hdr(skb)->daddr;
break;
#endif
default:
@@ -625,9 +625,9 @@ static struct sk_buff *br_multicast_alloc_query(struct net_bridge *br,
switch (group->proto) {
case htons(ETH_P_IP):
- ip4_dst = ip_dst ? ip_dst->u.ip4 : htonl(INADDR_ALLHOSTS_GROUP);
+ ip4_dst = ip_dst ? ip_dst->dst.ip4 : htonl(INADDR_ALLHOSTS_GROUP);
return br_ip4_multicast_alloc_query(br, pg,
- ip4_dst, group->u.ip4,
+ ip4_dst, group->dst.ip4,
with_srcs, over_lmqt,
sflag, igmp_type,
need_rexmit);
@@ -636,13 +636,13 @@ static struct sk_buff *br_multicast_alloc_query(struct net_bridge *br,
struct in6_addr ip6_dst;
if (ip_dst)
- ip6_dst = ip_dst->u.ip6;
+ ip6_dst = ip_dst->dst.ip6;
else
ipv6_addr_set(&ip6_dst, htonl(0xff020000), 0, 0,
htonl(1));
return br_ip6_multicast_alloc_query(br, pg,
- &ip6_dst, &group->u.ip6,
+ &ip6_dst, &group->dst.ip6,
with_srcs, over_lmqt,
sflag, igmp_type,
need_rexmit);
@@ -906,7 +906,7 @@ static int br_ip4_multicast_add_group(struct net_bridge *br,
return 0;
memset(&br_group, 0, sizeof(br_group));
- br_group.u.ip4 = group;
+ br_group.dst.ip4 = group;
br_group.proto = htons(ETH_P_IP);
br_group.vid = vid;
filter_mode = igmpv2 ? MCAST_EXCLUDE : MCAST_INCLUDE;
@@ -930,7 +930,7 @@ static int br_ip6_multicast_add_group(struct net_bridge *br,
return 0;
memset(&br_group, 0, sizeof(br_group));
- br_group.u.ip6 = *group;
+ br_group.dst.ip6 = *group;
br_group.proto = htons(ETH_P_IPV6);
br_group.vid = vid;
filter_mode = mldv1 ? MCAST_EXCLUDE : MCAST_INCLUDE;
@@ -1079,7 +1079,7 @@ static void br_multicast_send_query(struct net_bridge *br,
!br_opt_get(br, BROPT_MULTICAST_QUERIER))
return;
- memset(&br_group.u, 0, sizeof(br_group.u));
+ memset(&br_group.dst, 0, sizeof(br_group.dst));
if (port ? (own_query == &port->ip4_own_query) :
(own_query == &br->ip4_own_query)) {
@@ -2506,7 +2506,7 @@ static void br_ip4_multicast_leave_group(struct net_bridge *br,
own_query = port ? &port->ip4_own_query : &br->ip4_own_query;
memset(&br_group, 0, sizeof(br_group));
- br_group.u.ip4 = group;
+ br_group.dst.ip4 = group;
br_group.proto = htons(ETH_P_IP);
br_group.vid = vid;
@@ -2530,7 +2530,7 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br,
own_query = port ? &port->ip6_own_query : &br->ip6_own_query;
memset(&br_group, 0, sizeof(br_group));
- br_group.u.ip6 = *group;
+ br_group.dst.ip6 = *group;
br_group.proto = htons(ETH_P_IPV6);
br_group.vid = vid;
--
2.25.4
6 months, 4 weeks
