syzbot


kernel BUG in ip_do_fragment

Status: upstream: reported C repro on 2023/06/08 18:48
Reported-by: syzbot+3358456fcd7b407fbc44@syzkaller.appspotmail.com
First crash: 370d, last: 19h26m
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG at net/core/dev.c:LINE! (4) C done done 432 911d 1298d 20/28 fixed on 2022/03/08 16:11
Last patch testing requests (10)
Created Duration User Patch Repo Result
2024/01/05 14:27 54m retest repro android12-5.4 report log
2023/12/15 15:41 14m retest repro android12-5.4 report log
2023/12/15 15:41 8m retest repro android12-5.4 report log
2023/12/15 15:41 16m retest repro android12-5.4 report log
2023/12/15 15:41 6m retest repro android12-5.4 report log
2023/11/13 02:29 25m retest repro android12-5.4 report log
2023/11/13 02:29 26m retest repro android12-5.4 report log
2023/11/13 02:29 27m retest repro android12-5.4 report log
2023/11/13 02:29 7m retest repro android12-5.4 report log
2023/11/13 02:29 7m retest repro android12-5.4 report log

Sample crash report:
------------[ cut here ]------------
kernel BUG at net/core/dev.c:2873!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 358 Comm: syz-executor822 Not tainted 5.4.268-syzkaller-00003-g2d5d8240a7cb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:skb_checksum_help+0x873/0x880 net/core/dev.c:2873
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c d0 fc ff ff 48 89 df e8 2e 2b 16 fe e9 c3 fc ff ff e8 44 57 e6 fd 0f 0b e8 3d 57 e6 fd <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 41 54 53
RSP: 0018:ffff8881dc07ee68 EFLAGS: 00010293
RAX: ffffffff837defe3 RBX: 0000000000000673 RCX: ffff8881dc618fc0
RDX: 0000000000000000 RSI: 0000000000000673 RDI: 0000000000009e75
RBP: 0000000000009e75 R08: ffffffff837dea5f R09: ffffed103b80fdbe
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f0da4430
R13: 0000000000009e73 R14: ffff8881f0da43c0 R15: 1ffff1103e1b4886
FS:  0000555556c80380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000e000 CR3: 00000001dc764000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ip_do_fragment+0x15e/0x2200 net/ipv4/ip_output.c:789
 ip_finish_output_gso net/ipv4/ip_output.c:288 [inline]
 __ip_finish_output+0x49c/0x710 net/ipv4/ip_output.c:311
 NF_HOOK_COND include/linux/netfilter.h:292 [inline]
 ip_output+0x19b/0x3a0 net/ipv4/ip_output.c:440
 iptunnel_xmit+0x476/0x850 net/ipv4/ip_tunnel_core.c:78
 ip_tunnel_xmit+0x1aa7/0x26a0 net/ipv4/ip_tunnel.c:817
 __gre_xmit net/ipv4/ip_gre.c:442 [inline]
 ipgre_xmit+0x81a/0xbf0 net/ipv4/ip_gre.c:637
 __netdev_start_xmit include/linux/netdevice.h:4538 [inline]
 netdev_start_xmit include/linux/netdevice.h:4552 [inline]
 xmit_one net/core/dev.c:3221 [inline]
 dev_hard_start_xmit+0x1b7/0x6b0 net/core/dev.c:3237
 __dev_queue_xmit+0x14da/0x27e0 net/core/dev.c:3802
 packet_snd net/packet/af_packet.c:3009 [inline]
 packet_sendmsg+0x4747/0x6100 net/packet/af_packet.c:3038
 sock_sendmsg_nosec net/socket.c:638 [inline]
 __sock_sendmsg net/socket.c:650 [inline]
 ____sys_sendmsg+0x5ac/0x8f0 net/socket.c:2306
 ___sys_sendmsg net/socket.c:2360 [inline]
 __sys_sendmsg+0x28b/0x380 net/socket.c:2406
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
Modules linked in:
---[ end trace 3ef932202fae4c6b ]---
RIP: 0010:skb_checksum_help+0x873/0x880 net/core/dev.c:2873
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c d0 fc ff ff 48 89 df e8 2e 2b 16 fe e9 c3 fc ff ff e8 44 57 e6 fd 0f 0b e8 3d 57 e6 fd <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 41 54 53
RSP: 0018:ffff8881dc07ee68 EFLAGS: 00010293
RAX: ffffffff837defe3 RBX: 0000000000000673 RCX: ffff8881dc618fc0
RDX: 0000000000000000 RSI: 0000000000000673 RDI: 0000000000009e75
RBP: 0000000000009e75 R08: ffffffff837dea5f R09: ffffed103b80fdbe
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f0da4430
R13: 0000000000009e73 R14: ffff8881f0da43c0 R15: 1ffff1103e1b4886
FS:  0000555556c80380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000e000 CR3: 00000001dc764000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (627):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/30 17:43 android12-5.4 2d5d8240a7cb 3ce4924c .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/01/21 11:25 android12-5.4 9ca091c99214 9bd8dcda .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2023/12/22 14:26 android12-5.4 c0585bc7c835 4f9530a3 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2023/12/01 14:40 android12-5.4 891e39829ab7 f819d6f7 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2023/11/23 13:10 android12-5.4 2ac128c04e33 fc59b78e .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2023/10/16 09:22 android12-5.4 5f1cbd78af59 f757a323 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2023/09/18 06:41 android12-5.4 19cff29fe49c 0b6a67ac .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2023/06/08 20:03 android12-5.4 10e0626a3202 058b3a5a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2023/06/08 19:42 android12-5.4 10e0626a3202 058b3a5a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2023/06/08 19:23 android12-5.4 10e0626a3202 058b3a5a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2023/06/08 19:01 android12-5.4 10e0626a3202 058b3a5a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2023/06/08 18:41 android12-5.4 10e0626a3202 058b3a5a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/12 13:25 android12-5.4 6f97bd951d82 f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/12 12:14 android12-5.4 6f97bd951d82 f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/12 02:51 android12-5.4 4433e72c494f 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/10 16:32 android12-5.4 dd432c37afcd 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/09 16:37 android12-5.4 dd432c37afcd 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/08 11:46 android12-5.4 dd432c37afcd 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/08 01:21 android12-5.4 dd432c37afcd 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/06 14:25 android12-5.4 dd432c37afcd 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/04 21:29 android12-5.4 dd432c37afcd 11f2afa5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/03 23:49 android12-5.4 dd432c37afcd a1feae05 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/03 14:12 android12-5.4 dd432c37afcd 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/02 22:40 android12-5.4 70fafe094510 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/02 22:40 android12-5.4 70fafe094510 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/02 18:25 android12-5.4 70fafe094510 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/02 08:53 android12-5.4 70fafe094510 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/06/01 14:42 android12-5.4 70fafe094510 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/29 23:03 android12-5.4 8322246edffa 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/29 18:38 android12-5.4 8322246edffa 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/29 05:32 android12-5.4 8322246edffa 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/29 03:01 android12-5.4 8322246edffa 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/28 22:20 android12-5.4 8322246edffa 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/28 14:49 android12-5.4 8322246edffa f550015e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/28 14:49 android12-5.4 8322246edffa f550015e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/28 11:26 android12-5.4 8322246edffa f550015e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/28 03:01 android12-5.4 8322246edffa f550015e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/27 23:04 android12-5.4 8322246edffa 761766e6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/27 04:21 android12-5.4 8322246edffa a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/26 11:41 android12-5.4 8322246edffa a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/26 07:35 android12-5.4 8322246edffa a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/25 01:24 android12-5.4 8322246edffa a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/24 23:52 android12-5.4 8322246edffa a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/23 21:40 android12-5.4 51cf29fc2bfc 4c2072ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/21 14:20 android12-5.4 51cf29fc2bfc 4c0d3ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/20 02:08 android12-5.4 51cf29fc2bfc c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/19 20:49 android12-5.4 51cf29fc2bfc c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/19 01:20 android12-5.4 51cf29fc2bfc c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/18 14:06 android12-5.4 51cf29fc2bfc c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/17 11:45 android12-5.4 51cf29fc2bfc c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/17 06:06 android12-5.4 51cf29fc2bfc c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/17 01:31 android12-5.4 51cf29fc2bfc c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/16 02:44 android12-5.4 51cf29fc2bfc ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/15 08:03 android12-5.4 51cf29fc2bfc fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/14 22:15 android12-5.4 51cf29fc2bfc fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2024/05/14 18:53 android12-5.4 51cf29fc2bfc fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
2023/06/08 18:24 android12-5.4 10e0626a3202 058b3a5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ip_do_fragment
* Struck through repros no longer work on HEAD.