syzbot


kernel BUG at net/core/dev.c:LINE! (4)
Status: internal: reported C repro on 2020/11/22 21:18
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: f123cffdd8fe net: netlink: af_netlink: Prevent empty skb by adding a check on len.
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-riscv64]
First crash: 428d, last: 40d

Cause bisection: introduced by (bisect log) :
commit f3c84a8e3e922afdcbc55f04df8fdf8a548f5a21
Author: Nir Dotan <nird@mellanox.com>
Date: Thu Oct 4 15:48:02 2018 +0000

  mlxsw: pci: Derive event type from event queue number

Crash: general protection fault in batadv_iv_ogm_queue_add (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) :
commit f123cffdd8fe8ea6c7fded4b88516a42798797d0
Author: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Date: Mon Nov 29 17:53:27 2021 +0000

  net: netlink: af_netlink: Prevent empty skb by adding a check on len.

similar bugs (7):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 kernel BUG at net/core/dev.c:LINE! (2) C 78 2d15h 409d 0/1 upstream: reported C repro on 2020/12/11 13:29
linux-4.14 kernel BUG in validate_xmit_skb 1 348d 348d 0/1 auto-closed as invalid on 2021/06/10 04:03
upstream kernel BUG at net/core/dev.c:LINE! (2) syz 2 1202d 1202d 12/22 fixed on 2018/10/18 14:43
linux-4.19 kernel BUG at net/core/dev.c:LINE! 4 639d 642d 0/1 auto-closed as invalid on 2020/08/23 07:17
upstream kernel BUG at net/core/dev.c:LINE! C 5 1520d 1524d 3/22 fixed on 2017/12/08 02:32
linux-4.14 kernel BUG at net/core/dev.c:LINE! C inconclusive 3 391d 660d 1/1 fixed on 2021/01/17 13:53
upstream kernel BUG at net/core/dev.c:LINE! (3) C done 979 509d 653d 17/22 fixed on 2020/09/16 22:51

Sample crash report:

Crashes (432):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2021/08/18 18:57 upstream 614cb2751d31 a2fe1cb5 .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-root 2021/08/11 17:07 upstream 761c6d7ec820 6972b106 .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-selinux-root 2021/05/28 00:29 upstream d7c5303fbc8a 858ea628 .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-smack-root 2021/05/07 08:56 upstream d2b6f8a17919 06585184 .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-root 2021/05/07 01:34 upstream d2b6f8a17919 06585184 .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce 2021/01/01 16:20 upstream f6e1ea196492 79264ae3 .config log report syz C
ci-upstream-net-this-kasan-gce 2021/08/27 09:52 net 73367f05b25d b318694d .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-net-this-kasan-gce 2021/05/28 03:55 net d7c5303fbc8a 858ea628 .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-net-this-kasan-gce 2021/02/04 21:49 net d795cc02a297 42b90a7c .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-net-this-kasan-gce 2020/11/22 23:37 net f9b036532108 0d27f508 .config log report syz C
ci-upstream-net-kasan-gce 2021/08/27 11:23 net-next 3aa7857fe1d7 b318694d .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-net-kasan-gce 2021/06/05 11:38 net-next 1a42624aecba 500c2339 .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-net-kasan-gce 2021/05/28 01:43 net-next 59c56342459a 858ea628 .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-net-kasan-gce 2021/02/04 15:29 net-next 32d1bbb1d609 42b90a7c .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-net-kasan-gce 2020/11/22 22:15 net-next f9e425e99b07 0d27f508 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2021/12/07 21:09 linux-next 04fe99a8d936 0230ba3e .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/09/20 03:37 linux-next 9004fd387338 70b76c1d .config log report syz C kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-smack-root 2021/12/13 11:34 upstream 2585cf9dfaad 49ca1f59 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-smack-root 2021/12/11 14:29 upstream 6f513529296f 49ca1f59 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-smack-root 2021/12/10 00:15 upstream c741e49150db b54aa474 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-smack-root 2021/12/09 09:21 upstream 2a987e65025e a4a2a501 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-selinux-root 2021/12/02 12:08 upstream 58e1100fdc59 61f86278 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-root 2021/12/02 10:52 upstream 58e1100fdc59 61f86278 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-selinux-root 2021/12/02 01:03 upstream 58e1100fdc59 61f86278 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-root 2021/12/01 17:23 upstream 58e1100fdc59 5fa3eacc .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-root 2021/12/01 10:15 upstream 58e1100fdc59 5fa3eacc .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-smack-root 2021/12/01 05:21 upstream f080815fdb3e 80270552 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-root 2021/11/30 11:20 upstream d58071a8a76d 80270552 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-selinux-root 2021/11/30 01:50 upstream d58071a8a76d d0830353 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-root 2021/11/29 15:40 upstream d58071a8a76d d0830353 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-smack-root 2021/11/29 12:04 upstream d58071a8a76d 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-selinux-root 2021/11/29 11:58 upstream d58071a8a76d 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-root 2021/11/29 01:25 upstream d06c942efea4 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-selinux-root 2021/11/28 11:09 upstream 3498e7f2bb41 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-root 2021/11/28 02:11 upstream 741392771338 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-selinux-root 2021/11/27 22:34 upstream 741392771338 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-selinux-root 2021/11/27 21:30 upstream 741392771338 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-root 2021/11/27 20:19 upstream 741392771338 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-selinux-root 2021/11/27 11:56 upstream c5c17547b778 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-root 2021/11/26 15:02 upstream a4849f6000e2 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-selinux-root 2021/11/25 19:48 upstream b501b85957de 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-smack-root 2021/11/25 18:32 upstream 5f53fa508db0 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-selinux-root 2021/11/23 11:16 upstream 136057256686 545ab074 .config log report info kernel BUG in queue_userspace_packet
ci-qemu-upstream 2021/11/21 11:26 upstream 923dcc5eb0c1 4eb20a4e .config log report info kernel BUG in netem_enqueue
ci-qemu-upstream 2021/11/08 12:32 upstream 6b75d88fa81b d29682f1 .config log report info kernel BUG in napi_enable
ci-upstream-kasan-gce-selinux-root 2021/06/09 13:04 upstream 368094df48e6 84fe5d96 .config log report info kernel BUG in encrypt_packet
ci-upstream-kasan-gce 2021/02/04 12:44 upstream 61556703b610 42b90a7c .config log report info kernel BUG in validate_xmit_skb
ci-qemu-upstream-386 2021/11/01 10:51 upstream 8bb7eca972ad 098b5d53 .config log report info kernel BUG in validate_xmit_skb
ci-qemu-upstream-386 2021/08/05 04:17 upstream 251a1524293d 7f7bb950 .config log report info kernel BUG in netem_enqueue
ci-upstream-kasan-gce-386 2021/01/20 08:35 upstream 45dfb8a5659a 63631df1 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-kasan-gce-386 2021/01/17 04:09 upstream 0da0a8a0a0e1 65a7a854 .config log report info
ci-upstream-net-this-kasan-gce 2021/11/30 08:28 net cdef485217d3 d0830353 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-net-this-kasan-gce 2021/11/29 04:17 net c5c17547b778 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-net-this-kasan-gce 2021/11/25 22:43 net 9dbe33cf371b 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-net-this-kasan-gce 2021/06/24 10:15 net c2f5c57d99de ec865f6a .config log report info kernel BUG in ip_do_fragment
ci-upstream-net-kasan-gce 2021/11/30 22:53 net-next 72a2ff567fc3 80270552 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-net-kasan-gce 2021/11/28 05:14 net-next d40ce48cb3a6 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-net-kasan-gce 2021/11/26 18:52 net-next 35bf8c86eeb8 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-net-kasan-gce 2021/11/26 02:48 net-next 305e95bb893c 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-net-kasan-gce 2021/11/25 11:57 net-next 305e95bb893c 545ab074 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-net-kasan-gce 2021/11/10 09:02 net-next cc0356d6a02e 55fa030c .config log report info kernel BUG in ip6_fragment
ci-upstream-net-kasan-gce 2020/11/22 21:18 net-next f9e425e99b07 0d27f508 .config log report info
ci-upstream-linux-next-kasan-gce-root 2021/12/15 04:14 linux-next ea922272cbe5 f752fb53 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/12/09 04:27 linux-next 4eee8d0b64ec a4a2a501 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/12/08 13:14 linux-next 4eee8d0b64ec a4a2a501 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/12/06 05:04 linux-next f81e94e91878 a617004c .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/12/06 01:10 linux-next f81e94e91878 a617004c .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/12/05 14:16 linux-next f81e94e91878 a617004c .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/12/04 22:33 linux-next f81e94e91878 a617004c .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/12/01 22:47 linux-next f81e94e91878 61f86278 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/11/30 17:06 linux-next f81e94e91878 80270552 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/11/30 07:20 linux-next f81e94e91878 d0830353 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/11/27 17:25 linux-next f81e94e91878 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/11/27 09:58 linux-next f81e94e91878 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/11/27 02:27 linux-next f81e94e91878 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/11/26 13:55 linux-next f81e94e91878 63eeac02 .config log report info kernel BUG in validate_xmit_skb
ci-upstream-linux-next-kasan-gce-root 2021/11/26 11:23 linux-next f81e94e91878 63eeac02 .config log report info kernel BUG in validate_xmit_skb