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Re: KASAN: use-after-free Read in bitmap_ipmac_ext_cleanup
by syzbot 20 Jan '20

20 Jan '20

syzbot has bisected this bug to: commit ff95bf28c23490584b9d75913a520bb7bb1f2ecb Author: Po-Hsu Lin <po-hsu.lin(a)canonical.com> Date: Mon Jul 1 04:40:31 2019 +0000 selftests/net: skip psock_tpacket test if KALLSYMS was not enabled bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17e2e966e00000 start commit: 8f8972a3 Merge tag 'mtd/fixes-for-5.5-rc7' of git://git.ke.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=1412e966e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=1012e966e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=d9290aeb7e6cf1c4 dashboard link: https://syzkaller.appspot.com/bug?extid=33fc3ad6fa11675e1a7e userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15982cc9e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11be38d6e00000 Reported-by: syzbot+33fc3ad6fa11675e1a7e(a)syzkaller.appspotmail.com Fixes: ff95bf28c234 ("selftests/net: skip psock_tpacket test if KALLSYMS was not enabled") For information about bisection process see: https://goo.gl/tpsmEJ#bisection

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Re: KASAN: slab-out-of-bounds Read in bitmap_ipmac_gc
by syzbot 20 Jan '20

20 Jan '20

syzbot has bisected this bug to: commit 0d581ba311a27762fe1a14e5db5f65d225b3d844 Author: Yonglong Liu <liuyonglong(a)huawei.com> Date: Wed Jul 3 11:12:30 2019 +0000 net: hns: add support for vlan TSO bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16d5dfaee00000 start commit: def9d278 Linux 5.5-rc7 git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=15d5dfaee00000 console output: https://syzkaller.appspot.com/x/log.txt?x=11d5dfaee00000 kernel config: https://syzkaller.appspot.com/x/.config?x=cf8e288883e40aba dashboard link: https://syzkaller.appspot.com/bug?extid=c1a1fb435465986efe35 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=153ac495e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=153471d1e00000 Reported-by: syzbot+c1a1fb435465986efe35(a)syzkaller.appspotmail.com Fixes: 0d581ba311a2 ("net: hns: add support for vlan TSO") For information about bisection process see: https://goo.gl/tpsmEJ#bisection

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Re: KASAN: slab-out-of-bounds Read in bitmap_ip_ext_cleanup
by syzbot 20 Jan '20

20 Jan '20

syzbot has bisected this bug to: commit d68dbb0c9ac8b1ff52eb09aa58ce6358400fa939 Author: Christian Brauner <christian(a)brauner.io> Date: Thu Jun 20 23:26:35 2019 +0000 arch: handle arches who do not yet define clone3 bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1456fed1e00000 start commit: 09d4f10a net: sched: act_ctinfo: fix memory leak git tree: net final crash: https://syzkaller.appspot.com/x/report.txt?x=1656fed1e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=1256fed1e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=7e89bd00623fe71e dashboard link: https://syzkaller.appspot.com/bug?extid=6491ea8f6dddbf04930e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=141af959e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1067fa85e00000 Reported-by: syzbot+6491ea8f6dddbf04930e(a)syzkaller.appspotmail.com Fixes: d68dbb0c9ac8 ("arch: handle arches who do not yet define clone3") For information about bisection process see: https://goo.gl/tpsmEJ#bisection

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Re: KASAN: use-after-free Read in bitmap_ip_ext_cleanup
by syzbot 19 Jan '20

19 Jan '20

syzbot has bisected this bug to: commit 3d26eb8ad1e9b906433903ce05f775cf038e747f Author: Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> Date: Tue Jul 2 12:00:20 2019 +0000 net: bridge: don't cache ether dest pointer on input bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17bb1cc9e00000 start commit: 9aaa2949 Merge branch '1GbE' of git://git.kernel.org/pub/s.. git tree: net-next final crash: https://syzkaller.appspot.com/x/report.txt?x=147b1cc9e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=107b1cc9e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=66d8660c57ff3c98 dashboard link: https://syzkaller.appspot.com/bug?extid=b554d01b6c7870b17da2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15db12a5e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15316faee00000 Reported-by: syzbot+b554d01b6c7870b17da2(a)syzkaller.appspotmail.com Fixes: 3d26eb8ad1e9 ("net: bridge: don't cache ether dest pointer on input") For information about bisection process see: https://goo.gl/tpsmEJ#bisection

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Re: KASAN: slab-out-of-bounds Read in bitmap_port_ext_cleanup
by syzbot 19 Jan '20

19 Jan '20

syzbot has bisected this bug to: commit 2f9b0d93a9d3ec64558537ab5d7cff820886afa4 Author: Keerthy <j-keerthy(a)ti.com> Date: Mon Jun 24 05:16:19 2019 +0000 net: ethernet: ti: cpsw: Fix suspend/resume break bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17fcf959e00000 start commit: e02d9c4c Merge branch 'bnxt_en-fixes' git tree: net final crash: https://syzkaller.appspot.com/x/report.txt?x=1402f959e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=1002f959e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=7e89bd00623fe71e dashboard link: https://syzkaller.appspot.com/bug?extid=7b6206fb525c1f5ec3f8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16551cc9e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14a04966e00000 Reported-by: syzbot+7b6206fb525c1f5ec3f8(a)syzkaller.appspotmail.com Fixes: 2f9b0d93a9d3 ("net: ethernet: ti: cpsw: Fix suspend/resume break") For information about bisection process see: https://goo.gl/tpsmEJ#bisection

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Re:
by Simon Wunderlich 17 Jan '20

17 Jan '20

Hi Jeremy, On Thursday, January 16, 2020 9:06:50 PM CET Martin, Jeremy J CIV USARMY CCDC C5ISR (USA) via B.A.T.M.A.N wrote: > My/My Teams intent is to have 4 radios in total, 2 on one pc and two on > another. Our plan is to have Batman take care of the switching between > which radio to use in order to transmit data between these two PC's. One > radio is high frequency radio (60 Ghz) and the other would be a lower > frequency radio and the idea is to have batman switch between these radios > once the higher frequency radio is dropping between a certain TQ. BATMAN will switch by default when one link has a better TQ (towards the final destination) than the other link, so I believe this should happen by default. > My > primary questions regarding this scenario would be, 1) Are there specific > standards the radio chipsets would need to support in order for them to > work in this scenario?. Normally you would want IBSS mode or 802.11s mode work. BATMAN can also work in AP/Sta mode, although the packet loss counting may be biased since broadcast handling works a bit different than in IBSS/11s. But for point-to- point links it might just work. > 2) Would Batman-adv be adequate enough to be able > to handle a 1Gb/s data transmission and be able to swap accordingly to the > lower frequency radio? If your radio and CPU are powerful enough, batman-adv is able to handle it, yes. Cheers, Simon

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Batman-Adv Use Case Question
by Martin, Jeremy J CIV USARMY CCDC C5ISR (USA) 16 Jan '20

16 Jan '20

My/My Teams intent is to have 4 radios in total, 2 on one pc and two on another. Our plan is to have Batman take care of the switching between which radio to use in order to transmit data between these two PC's. One radio is high frequency radio (60 Ghz) and the other would be a lower frequency radio and the idea is to have batman switch between these radios once the higher frequency radio is dropping between a certain TQ. My primary questions regarding this scenario would be, 1) Are there specific standards the radio chipsets would need to support in order for them to work in this scenario?. 2) Would Batman-adv be adequate enough to be able to handle a 1Gb/s data transmission and be able to swap accordingly to the lower frequency radio? Best, Jeremy Martin Office: (443)-395-7475 Jeremy.j.martin33.civ(a)mail.mil Radio Frequency Communications Division, RF Modeling and Simulation Branch C5ISR Center, Space and Terrestrial Communications Directorate

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[PATCH 0/7] pull request for net-next: batman-adv 2020-01-14
by Simon Wunderlich 15 Jan '20

15 Jan '20

Hi David, here is a small feature/cleanup pull request of batman-adv to go into net-next. Please pull or let me know of any problem! Thank you, Simon The following changes since commit 5759af0682b3395e64cf615e062d6ecad01428dc: batman-adv: Drop lockdep.h include for soft-interface.c (2019-11-03 08:30:58 +0100) are available in the Git repository at: git://git.open-mesh.org/linux-merge.git tags/batadv-next-for-davem-20200114 for you to fetch changes up to b2e55ca89245fccd459a2d56850822a69a6f91da: batman-adv: Disable CONFIG_BATMAN_ADV_SYSFS by default (2020-01-01 00:57:07 +0100) ---------------------------------------------------------------- This feature/cleanup patchset includes the following patches: - bump version strings, by Simon Wunderlich - fix typo and kerneldocs, by Sven Eckelmann - use WiFi txbitrate for B.A.T.M.A.N. V as fallback, by René Treffer - silence some endian sparse warnings by adding annotations, by Sven Eckelmann - Update copyright years to 2020, by Sven Eckelmann - Disable deprecated sysfs configuration by default, by Sven Eckelmann ---------------------------------------------------------------- René Treffer (1): batman-adv: ELP - use wifi tx bitrate as fallback throughput Simon Wunderlich (1): batman-adv: Start new development cycle Sven Eckelmann (5): batman-adv: Strip dots from variable macro kerneldoc batman-adv: Fix typo metAdata batman-adv: Annotate bitwise integer pointer casts batman-adv: Update copyright years for 2020 batman-adv: Disable CONFIG_BATMAN_ADV_SYSFS by default include/uapi/linux/batadv_packet.h | 2 +- include/uapi/linux/batman_adv.h | 2 +- net/batman-adv/Kconfig | 3 +-- net/batman-adv/Makefile | 2 +- net/batman-adv/bat_algo.c | 2 +- net/batman-adv/bat_algo.h | 2 +- net/batman-adv/bat_iv_ogm.c | 2 +- net/batman-adv/bat_iv_ogm.h | 2 +- net/batman-adv/bat_v.c | 2 +- net/batman-adv/bat_v.h | 2 +- net/batman-adv/bat_v_elp.c | 15 +++++++++++---- net/batman-adv/bat_v_elp.h | 2 +- net/batman-adv/bat_v_ogm.c | 2 +- net/batman-adv/bat_v_ogm.h | 2 +- net/batman-adv/bitarray.c | 2 +- net/batman-adv/bitarray.h | 2 +- net/batman-adv/bridge_loop_avoidance.c | 4 ++-- net/batman-adv/bridge_loop_avoidance.h | 2 +- net/batman-adv/debugfs.c | 2 +- net/batman-adv/debugfs.h | 2 +- net/batman-adv/distributed-arp-table.c | 10 ++++++---- net/batman-adv/distributed-arp-table.h | 2 +- net/batman-adv/fragmentation.c | 2 +- net/batman-adv/fragmentation.h | 2 +- net/batman-adv/gateway_client.c | 2 +- net/batman-adv/gateway_client.h | 2 +- net/batman-adv/gateway_common.c | 2 +- net/batman-adv/gateway_common.h | 2 +- net/batman-adv/hard-interface.c | 2 +- net/batman-adv/hard-interface.h | 2 +- net/batman-adv/hash.c | 2 +- net/batman-adv/hash.h | 2 +- net/batman-adv/icmp_socket.c | 2 +- net/batman-adv/icmp_socket.h | 2 +- net/batman-adv/log.c | 2 +- net/batman-adv/log.h | 12 ++++++------ net/batman-adv/main.c | 2 +- net/batman-adv/main.h | 4 ++-- net/batman-adv/multicast.c | 2 +- net/batman-adv/multicast.h | 2 +- net/batman-adv/netlink.c | 2 +- net/batman-adv/netlink.h | 2 +- net/batman-adv/network-coding.c | 2 +- net/batman-adv/network-coding.h | 2 +- net/batman-adv/originator.c | 2 +- net/batman-adv/originator.h | 2 +- net/batman-adv/routing.c | 2 +- net/batman-adv/routing.h | 2 +- net/batman-adv/send.c | 2 +- net/batman-adv/send.h | 2 +- net/batman-adv/soft-interface.c | 2 +- net/batman-adv/soft-interface.h | 2 +- net/batman-adv/sysfs.c | 2 +- net/batman-adv/sysfs.h | 2 +- net/batman-adv/tp_meter.c | 2 +- net/batman-adv/tp_meter.h | 2 +- net/batman-adv/trace.c | 2 +- net/batman-adv/trace.h | 2 +- net/batman-adv/translation-table.c | 2 +- net/batman-adv/translation-table.h | 2 +- net/batman-adv/tvlv.c | 2 +- net/batman-adv/tvlv.h | 2 +- net/batman-adv/types.h | 6 +++--- 63 files changed, 87 insertions(+), 79 deletions(-)

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[PATCH 0/1] pull request for net: batman-adv 2020-01-14
by Simon Wunderlich 15 Jan '20

15 Jan '20

Hi David, here is a bugfix which we would like to have integrated into net. Please pull or let me know of any problem! Thank you, Simon The following changes since commit 40e220b4218bb3d278e5e8cc04ccdfd1c7ff8307: batman-adv: Avoid free/alloc race when handling OGM buffer (2019-10-13 21:00:07 +0200) are available in the Git repository at: git://git.open-mesh.org/linux-merge.git tags/batadv-net-for-davem-20200114 for you to fetch changes up to 4cc4a1708903f404d2ca0dfde30e71e052c6cbc9: batman-adv: Fix DAT candidate selection on little endian systems (2019-11-28 12:48:59 +0100) ---------------------------------------------------------------- Here is a batman-adv bugfix: - Fix DAT candidate selection on little endian systems, by Sven Eckelmann ---------------------------------------------------------------- Sven Eckelmann (1): batman-adv: Fix DAT candidate selection on little endian systems net/batman-adv/distributed-arp-table.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

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[PATCH] alfred-gpsd: Fix build against gpsd ABI 9.0
by Sven Eckelmann 15 Jan '20

15 Jan '20

libgpsd 3.20 removed the timestamp_t type and the function unix_to_iso8601(). The same release introduced the timespec_t based function timespec_to_iso8601(). Signed-off-by: Sven Eckelmann <sven(a)narfation.org> --- gpsd/alfred-gpsd.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/gpsd/alfred-gpsd.c b/gpsd/alfred-gpsd.c index 884bdbf..47d6a64 100644 --- a/gpsd/alfred-gpsd.c +++ b/gpsd/alfred-gpsd.c @@ -8,6 +8,8 @@ #include "alfred-gpsd.h" +#include <time.h> + static struct globals gpsd_globals; static int alfred_open_sock(struct globals *globals) @@ -64,19 +66,31 @@ static int gpsd_publish_data(struct globals *globals) return 0; } +static void gpsd_now_to_iso8601(char *tbuf, size_t len) +{ +#if GPSD_API_MAJOR_VERSION >= 9 + timespec_t now; + + clock_gettime(CLOCK_REALTIME, &now); + timespec_to_iso8601(now, tbuf, len); +#else + timestamp_t now = timestamp(); + unix_to_iso8601(now, tbuf, len); +#endif +} + static void gpsd_get_location(struct globals *globals) { if (globals->source == SOURCE_CMDLINE) { char tbuf[JSON_DATE_MAX+1]; - timestamp_t now = timestamp(); + gpsd_now_to_iso8601(tbuf, sizeof(tbuf)); sprintf(globals->gpsd_data->tpv, "{\"class\":\"TPV\",\"device\":\"command line\"," "\"time\":\"%s\"," "\"lat\":%f,\"lon\":%f,\"alt\":%f," "\"mode\":3}", - unix_to_iso8601(now, tbuf, sizeof(tbuf)), - globals->lat, globals->lon, globals->alt); + tbuf, globals->lat, globals->lon, globals->alt); globals->gpsd_data->tpv_len = htonl(strlen(globals->gpsd_data->tpv) + 1); } -- 2.20.1

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