B.A.T.M.A.N December 2019

b.a.t.m.a.n@lists.open-mesh.org

9 participants
11 discussions

[PATCH] batman-adv: Disable CONFIG_BATMAN_ADV_SYSFS by default
by Sven Eckelmann 31 Dec '19

31 Dec '19

The sysfs support in batman-adv is deprecated since a while and will be removed completely next year. All tools which were known to the batman-adv development team are supporting the batman-adv netlink interface since a while. Thus disabling CONFIG_BATMAN_ADV_SYSFS by default should not cause problems on most systems. It is still possible to enable it in case it is still required in a specific setup. Signed-off-by: Sven Eckelmann <sven(a)narfation.org> --- Makefile | 2 +- README.external.rst | 2 +- net/batman-adv/Kconfig | 1 - 3 files changed, 2 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index e391a1e7..448a14d6 100644 --- a/Makefile +++ b/Makefile @@ -17,7 +17,7 @@ export CONFIG_BATMAN_ADV_NC=n # B.A.T.M.A.N. multicast optimizations: export CONFIG_BATMAN_ADV_MCAST=y # B.A.T.M.A.N. sysfs support: -export CONFIG_BATMAN_ADV_SYSFS=y +export CONFIG_BATMAN_ADV_SYSFS=n # B.A.T.M.A.N. tracing support: export CONFIG_BATMAN_ADV_TRACING=n # B.A.T.M.A.N. V routing algorithm (experimental): diff --git a/README.external.rst b/README.external.rst index 6db0117d..5a5da14e 100644 --- a/README.external.rst +++ b/README.external.rst @@ -49,7 +49,7 @@ module). Available options and their possible values are * ``CONFIG_BATMAN_ADV_DAT=[y*|n]`` (B.A.T.M.A.N. Distributed ARP Table) * ``CONFIG_BATMAN_ADV_MCAST=[y*|n]`` (B.A.T.M.A.N. multicast optimizations) * ``CONFIG_BATMAN_ADV_NC=[y|n*]`` (B.A.T.M.A.N. Network Coding) - * ``CONFIG_BATMAN_ADV_SYSFS=[y*|n]`` (B.A.T.M.A.N. sysfs support) + * ``CONFIG_BATMAN_ADV_SYSFS=[y|n*]`` (B.A.T.M.A.N. sysfs support) * ``CONFIG_BATMAN_ADV_TRACING=[y|n*]`` (B.A.T.M.A.N. tracing support) * ``CONFIG_BATMAN_ADV_BATMAN_V=[y*|n]`` (B.A.T.M.A.N. V routing algorithm) diff --git a/net/batman-adv/Kconfig b/net/batman-adv/Kconfig index 045b2b18..c762758a 100644 --- a/net/batman-adv/Kconfig +++ b/net/batman-adv/Kconfig @@ -100,7 +100,6 @@ config BATMAN_ADV_DEBUG config BATMAN_ADV_SYSFS bool "batman-adv sysfs entries" depends on BATMAN_ADV - default y help Say Y here if you want to enable batman-adv device configuration and status interface through sysfs attributes. It is replaced by the -- 2.20.1

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[PATCH 1/3] alfred: Update copyright years for 2020
by Sven Eckelmann 31 Dec '19

31 Dec '19

Signed-off-by: Sven Eckelmann <sven(a)narfation.org> --- Makefile | 2 +- alfred.h | 2 +- batadv_query.c | 2 +- batadv_query.h | 2 +- batadv_querynl.c | 2 +- batadv_querynl.h | 2 +- batman_adv.h | 2 +- bitops.h | 2 +- client.c | 2 +- gpsd/Makefile | 2 +- gpsd/alfred-gpsd.c | 2 +- gpsd/alfred-gpsd.h | 2 +- hash.c | 2 +- hash.h | 2 +- main.c | 2 +- netlink.c | 2 +- netlink.h | 2 +- netsock.c | 2 +- packet.h | 2 +- recv.c | 2 +- send.c | 2 +- server.c | 2 +- unix_sock.c | 2 +- util.c | 2 +- vis/Makefile | 2 +- vis/vis.c | 2 +- vis/vis.h | 2 +- 27 files changed, 27 insertions(+), 27 deletions(-) diff --git a/Makefile b/Makefile index 8840961..2bfe18c 100755 --- a/Makefile +++ b/Makefile @@ -2,7 +2,7 @@ # SPDX-License-Identifier: GPL-2.0 # -*- makefile -*- # -# Copyright (C) 2012-2019 B.A.T.M.A.N. contributors +# Copyright (C) 2012-2020 B.A.T.M.A.N. contributors # # License-Filename: LICENSES/preferred/GPL-2.0 diff --git a/alfred.h b/alfred.h index 2b7e175..38cc27b 100644 --- a/alfred.h +++ b/alfred.h @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 */ -/* Copyright (C) 2012-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2012-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich * diff --git a/batadv_query.c b/batadv_query.c index fb72e77..f758b42 100644 --- a/batadv_query.c +++ b/batadv_query.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2012-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2012-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich * diff --git a/batadv_query.h b/batadv_query.h index 7e93791..291292d 100644 --- a/batadv_query.h +++ b/batadv_query.h @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 */ -/* Copyright (C) 2006-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2006-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich, Marek Lindner * diff --git a/batadv_querynl.c b/batadv_querynl.c index d5e9402..2793242 100644 --- a/batadv_querynl.c +++ b/batadv_querynl.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2009-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2009-2020 B.A.T.M.A.N. contributors: * * Marek Lindner <mareklindner(a)neomailbox.ch>, Andrew Lunn <andrew(a)lunn.ch> * diff --git a/batadv_querynl.h b/batadv_querynl.h index e2066c2..f684ad8 100644 --- a/batadv_querynl.h +++ b/batadv_querynl.h @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 */ -/* Copyright (C) 2009-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2009-2020 B.A.T.M.A.N. contributors: * * Marek Lindner <mareklindner(a)neomailbox.ch>, Andrew Lunn <andrew(a)lunn.ch> * diff --git a/batman_adv.h b/batman_adv.h index 67f4636..617c180 100644 --- a/batman_adv.h +++ b/batman_adv.h @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: MIT */ -/* Copyright (C) 2016-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2016-2020 B.A.T.M.A.N. contributors: * * Matthias Schiffer */ diff --git a/bitops.h b/bitops.h index ead4a4f..2333aa4 100644 --- a/bitops.h +++ b/bitops.h @@ -2,7 +2,7 @@ /* Minimal Linux-like bit manipulation helper functions * (reduced version for alfred) * - * Copyright (c) 2012-2019, Sven Eckelmann <sven(a)narfation.org> + * Copyright (c) 2012-2020, Sven Eckelmann <sven(a)narfation.org> * * License-Filename: LICENSES/preferred/MIT */ diff --git a/client.c b/client.c index 85a05ce..b808295 100644 --- a/client.c +++ b/client.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2012-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2012-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich * diff --git a/gpsd/Makefile b/gpsd/Makefile index 81bf254..0645573 100755 --- a/gpsd/Makefile +++ b/gpsd/Makefile @@ -2,7 +2,7 @@ # SPDX-License-Identifier: GPL-2.0 # -*- makefile -*- # -# Copyright (C) 2013-2019 B.A.T.M.A.N. contributors +# Copyright (C) 2013-2020 B.A.T.M.A.N. contributors # # License-Filename: LICENSES/preferred/GPL-2.0 diff --git a/gpsd/alfred-gpsd.c b/gpsd/alfred-gpsd.c index 6e9137c..884bdbf 100644 --- a/gpsd/alfred-gpsd.c +++ b/gpsd/alfred-gpsd.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2013-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2013-2020 B.A.T.M.A.N. contributors: * * Andrew Lunn, Simon Wunderlich * diff --git a/gpsd/alfred-gpsd.h b/gpsd/alfred-gpsd.h index addfa4f..5783eee 100644 --- a/gpsd/alfred-gpsd.h +++ b/gpsd/alfred-gpsd.h @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 */ -/* Copyright (C) 2013-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2013-2020 B.A.T.M.A.N. contributors: * * Andrew Lunn, Simon Wunderlich * diff --git a/hash.c b/hash.c index 02ac15e..82a287e 100644 --- a/hash.c +++ b/hash.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2006-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2006-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich, Marek Lindner * diff --git a/hash.h b/hash.h index f5a8fb5..32a9e57 100644 --- a/hash.h +++ b/hash.h @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 */ -/* Copyright (C) 2006-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2006-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich, Marek Lindner * diff --git a/main.c b/main.c index f633462..57bea61 100644 --- a/main.c +++ b/main.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2012-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2012-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich * diff --git a/netlink.c b/netlink.c index e8fe55e..865ed9f 100644 --- a/netlink.c +++ b/netlink.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2009-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2009-2020 B.A.T.M.A.N. contributors: * * Marek Lindner <mareklindner(a)neomailbox.ch>, Andrew Lunn <andrew(a)lunn.ch> * diff --git a/netlink.h b/netlink.h index 26ad1e8..2964a2b 100644 --- a/netlink.h +++ b/netlink.h @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 */ -/* Copyright (C) 2009-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2009-2020 B.A.T.M.A.N. contributors: * * Marek Lindner <mareklindner(a)neomailbox.ch>, Andrew Lunn <andrew(a)lunn.ch> * diff --git a/netsock.c b/netsock.c index fcbc20b..9b200d2 100644 --- a/netsock.c +++ b/netsock.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2012-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2012-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich * diff --git a/packet.h b/packet.h index 564afad..ad2dfa6 100644 --- a/packet.h +++ b/packet.h @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: MIT */ -/* Copyright (C) 2012-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2012-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich, Sven Eckelmann * diff --git a/recv.c b/recv.c index e7c2c24..74a0f85 100644 --- a/recv.c +++ b/recv.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2012-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2012-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich * diff --git a/send.c b/send.c index d4043bc..02f4022 100644 --- a/send.c +++ b/send.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2012-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2012-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich * diff --git a/server.c b/server.c index 18109cc..cdd5be2 100644 --- a/server.c +++ b/server.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2012-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2012-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich * diff --git a/unix_sock.c b/unix_sock.c index 1d17cee..420affc 100644 --- a/unix_sock.c +++ b/unix_sock.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2012-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2012-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich * diff --git a/util.c b/util.c index e14350e..f1dc0dc 100644 --- a/util.c +++ b/util.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2012-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2012-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich * diff --git a/vis/Makefile b/vis/Makefile index 53d1f44..cfd0921 100755 --- a/vis/Makefile +++ b/vis/Makefile @@ -2,7 +2,7 @@ # SPDX-License-Identifier: GPL-2.0 # -*- makefile -*- # -# Copyright (C) 2013-2019 B.A.T.M.A.N. contributors +# Copyright (C) 2013-2020 B.A.T.M.A.N. contributors # # License-Filename: LICENSES/preferred/GPL-2.0 diff --git a/vis/vis.c b/vis/vis.c index cdc5524..17e067e 100644 --- a/vis/vis.c +++ b/vis/vis.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2013-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2013-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich * diff --git a/vis/vis.h b/vis/vis.h index fa5a248..3e8277a 100644 --- a/vis/vis.h +++ b/vis/vis.h @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 */ -/* Copyright (C) 2013-2019 B.A.T.M.A.N. contributors: +/* Copyright (C) 2013-2020 B.A.T.M.A.N. contributors: * * Simon Wunderlich * -- 2.20.1

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[B.A.T.M.A.N.] batman-adv and/or batmand porting effort to FreeBSD
by Mahdi Mokhtari 28 Dec '19

28 Dec '19

Hi, After some time of playing with the B.A.T.M.A.N protocol and net-interface on OpenWRT and Debian I was thinking to use it with the servers I use everyday (and maybe on routers/appliances I have nanoBSD on). So I started an effort... (As a background) I already ported some applications to FreeBSD [and I'm maintaining them] and also I did work already on the Linux emulation layer of FreeBSD (FreeBSD has a Linux syscall-emulation and Linux-KPI layers). So my approach (as naturally I didn't expect the build of batman-adv.ko to be successful as is), was based on the approach that we [at FreeBSD] did to port Linux's drm... <https://github.com/FreeBSDDesktop/kms-drm> I ended up in adding some header-files to FreeBSD Linux-KPI (like average.h, percpu.h, ...). Now I'm at a state that Netlink blocks me and I'm to determine next step :-) [Which I don't assume it being trivial with my current approach] So I'd like to ask: 1- Is it better approach to "rewrite" batman-adv.ko [at least Netlink-ish (let's call "Linuxism") parts] than what I'm doing now? 2- Any other efforts are being done out there? 3- is batmand deprecated [So I should mainly focus on batman-adv.ko]? 4- any other comments do you have? :D P.S. sorry if I'm not really good at starting conversation from scratch and out-of-nowhere :D but I hope by continuing the collaboration we can have better (more enriched) FreeBSD and better (as in more portable) B.A.T.M.A.N :-) -- Best regards, MMokhi.

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Re: general protection fault in nf_ct_netns_do_get
by syzbot 28 Dec '19

28 Dec '19

syzbot has bisected this bug to: commit 0a957467c5fd46142bc9c52758ffc552d4c5e2f7 Author: Guenter Roeck <linux(a)roeck-us.net> Date: Wed Aug 15 20:22:27 2018 +0000 x86: i8259: Add missing include file bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1579e751e00000 start commit: 46cf053e Linux 5.5-rc3 git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=1779e751e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=1379e751e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=ed9d672709340e35 dashboard link: https://syzkaller.appspot.com/bug?extid=19616eedf6fd8e241e50 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14a47ab9e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=170f2485e00000 Reported-by: syzbot+19616eedf6fd8e241e50(a)syzkaller.appspotmail.com Fixes: 0a957467c5fd ("x86: i8259: Add missing include file") For information about bisection process see: https://goo.gl/tpsmEJ#bisection

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Re: 回复： openwrt batman-adv
by Sven Eckelmann 28 Dec '19

28 Dec '19

On Saturday, 28 December 2019 03:32:17 CET 张鹏 wrote: > Thank you very much for your reply! > I have ported the pre-2019.2 version of batman to the 3.3 kernel and it is available for doing Please don't do this. Now you are not only having the known bugs from Linux 3.3 but also the known bugs [1] from the pre-2019.2 batman-adv. The correct approach is to get your used software updated to a non-EOL version. Kind regards, Sven [1] https://git.open-mesh.org/batman-adv.git/blob/HEAD:/CHANGELOG.rst

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openwrt batman-adv
by 张鹏 24 Dec '19

24 Dec '19

Hi, The platform I work on is openwrt mips, the kernel I use is version 3.3; the version using batman is relatively low, and I want to use the newer version batman on version 3.3, but I encounter many problems during compilation, and I don't know it Whether it works ? please help me! thank you very much !

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Re: KASAN: use-after-free Read in ext4_xattr_set_entry (2)
by syzbot 16 Dec '19

16 Dec '19

syzbot has bisected this bug to: commit 8835cae5f2abd7f7a3143afe357f416aff5517a4 Author: Chris Lapa <chris(a)lapa.com.au> Date: Wed Jan 11 01:44:47 2017 +0000 power: supply: bq27xxx: adds specific support for bq27520-g4 revision. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16661f41e00000 start commit: ae4b064e Merge tag 'afs-fixes-20191211' of git://git.kerne.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=15661f41e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=11661f41e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=79f79de2a27d3e3d dashboard link: https://syzkaller.appspot.com/bug?extid=4a39a025912b265cacef syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15ec1332e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=163455dee00000 Reported-by: syzbot+4a39a025912b265cacef(a)syzkaller.appspotmail.com Fixes: 8835cae5f2ab ("power: supply: bq27xxx: adds specific support for bq27520-g4 revision.") For information about bisection process see: https://goo.gl/tpsmEJ#bisection

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KCSAN: data-race in add_timer / timer_clear_idle (2)
by syzbot 12 Dec '19

12 Dec '19

Hello, syzbot found the following crash on: HEAD commit: ef798c30 x86, kcsan: Enable KCSAN for x86 git tree: https://github.com/google/ktsan.git kcsan console output: https://syzkaller.appspot.com/x/log.txt?x=156e052ee00000 kernel config: https://syzkaller.appspot.com/x/.config?x=8077a73bd604a9d4 dashboard link: https://syzkaller.appspot.com/bug?extid=c051abeff5e2e8ac40f0 compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+c051abeff5e2e8ac40f0(a)syzkaller.appspotmail.com ================================================================== BUG: KCSAN: data-race in add_timer / timer_clear_idle read to 0xffff88812be1b6e4 of 1 bytes by task 23 on cpu 1: forward_timer_base kernel/time/timer.c:892 [inline] __mod_timer kernel/time/timer.c:1009 [inline] mod_timer kernel/time/timer.c:1100 [inline] add_timer+0x3a6/0x550 kernel/time/timer.c:1136 __queue_delayed_work+0x13b/0x1d0 kernel/workqueue.c:1649 queue_delayed_work_on+0xf3/0x110 kernel/workqueue.c:1674 queue_delayed_work include/linux/workqueue.h:509 [inline] batadv_mcast_start_timer net/batman-adv/multicast.c:71 [inline] batadv_mcast_mla_update+0x11ad/0x19e0 net/batman-adv/multicast.c:949 process_one_work+0x3d4/0x890 kernel/workqueue.c:2269 worker_thread+0xa0/0x800 kernel/workqueue.c:2415 kthread+0x1d4/0x200 drivers/block/aoe/aoecmd.c:1253 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 write to 0xffff88812be1b6e4 of 1 bytes by task 0 on cpu 0: timer_clear_idle+0x42/0x50 kernel/time/timer.c:1675 tick_nohz_restart_sched_tick kernel/time/tick-sched.c:839 [inline] __tick_nohz_idle_restart_tick+0x36/0x1b0 kernel/time/tick-sched.c:1140 tick_nohz_idle_exit+0x1af/0x1e0 kernel/time/tick-sched.c:1181 do_idle+0xb1/0x280 kernel/sched/idle.c:276 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:355 rest_init+0xec/0xf6 init/main.c:452 arch_call_rest_init+0x17/0x37 start_kernel+0x838/0x85e init/main.c:786 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:490 x86_64_start_kernel+0x72/0x76 arch/x86/kernel/head64.c:471 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:241 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== --- This bug 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 bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

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Re: BUG: corrupted list in __dentry_kill (2)
by syzbot 12 Dec '19

12 Dec '19

syzbot has bisected this bug to: commit ab92d68fc22f9afab480153bd82a20f6e2533769 Author: Taehee Yoo <ap420073(a)gmail.com> Date: Mon Oct 21 18:47:51 2019 +0000 net: core: add generic lockdep keys bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12d37cb6e00000 start commit: 938f49c8 Add linux-next specific files for 20191211 git tree: linux-next final crash: https://syzkaller.appspot.com/x/report.txt?x=11d37cb6e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=16d37cb6e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=96834c884ba7bb81 dashboard link: https://syzkaller.appspot.com/bug?extid=31043da7725b6ec210f1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12dc83dae00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16ac8396e00000 Reported-by: syzbot+31043da7725b6ec210f1(a)syzkaller.appspotmail.com Fixes: ab92d68fc22f ("net: core: add generic lockdep keys") For information about bisection process see: https://goo.gl/tpsmEJ#bisection

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[PATCH] batman-adv: Replace FIELD_SIZEOF with sizeof_field
by Sven Eckelmann 11 Dec '19

11 Dec '19

The prefered way of getting the size of a member of a struct is the common macro sizeof_field from stddef.h and not the FIELD_SIZEOF (with multiple definitions). Signed-off-by: Sven Eckelmann <sven(a)narfation.org> --- compat-include/linux/stddef.h | 24 ++++++++++++++++++++++++ net/batman-adv/main.c | 2 +- 2 files changed, 25 insertions(+), 1 deletion(-) create mode 100644 compat-include/linux/stddef.h diff --git a/compat-include/linux/stddef.h b/compat-include/linux/stddef.h new file mode 100644 index 00000000..dd18840e --- /dev/null +++ b/compat-include/linux/stddef.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2007-2019 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_STDDEF_H_ +#define _NET_BATMAN_ADV_COMPAT_LINUX_STDDEF_H_ + +#include <linux/version.h> +#include_next <linux/stddef.h> + +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 16, 0) + +#ifndef sizeof_field +#define sizeof_field(TYPE, MEMBER) sizeof((((TYPE *)0)->MEMBER)) +#endif + +#endif /* < KERNEL_VERSION(4, 16, 0) */ + +#endif /* _NET_BATMAN_ADV_COMPAT_LINUX_STDDEF_H_ */ diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c index 4a89177d..4811ec65 100644 --- a/net/batman-adv/main.c +++ b/net/batman-adv/main.c @@ -548,7 +548,7 @@ static void batadv_recv_handler_init(void) BUILD_BUG_ON(sizeof(struct batadv_tvlv_tt_change) != 12); BUILD_BUG_ON(sizeof(struct batadv_tvlv_roam_adv) != 8); - i = FIELD_SIZEOF(struct sk_buff, cb); + i = sizeof_field(struct sk_buff, cb); BUILD_BUG_ON(sizeof(struct batadv_skb_cb) > i); /* broadcast packet */ -- 2.20.1

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B.A.T.M.A.N December 2019