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kernel BUG at net/core/skbuff.c:LINE!

Status: upstream: reported C repro on 2019/04/12 15:43
Reported-by: syzbot+812d66c9f9b0bbb28d30@syzkaller.appspotmail.com
First crash: 2050d, last: 630d
▶ ▼ Similar bugs (19)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-44 kernel BUG at net/core/skbuff.c:LINE! C 79 1825d 2051d 0/2 public: reported C repro on 2019/04/11 08:44
linux-4.19 kernel BUG at net/core/skbuff.c:LINE! C unreliable 494 815d 2034d 0/1 upstream: reported C repro on 2019/04/27 20:12
android-54 kernel BUG in pfkey_send_acquire C 278 739d 1404d 0/2 auto-obsoleted due to no activity on 2023/04/19 14:24
upstream kernel BUG at net/core/skbuff.c:LINE! (2) net C 562 2490d 2579d 4/28 fixed on 2018/01/29 03:39
android-5-10 kernel BUG in add_grec C error 83 968d 1042d 2/2 fixed on 2022/03/29 10:01
android-54 kernel BUG at net/core/skbuff.c:LINE! C 267 555d 1775d 0/2 auto-obsoleted due to no activity on 2023/08/22 15:17
android-414 kernel BUG at net/core/skbuff.c:LINE! C 2743 1814d 2051d 0/1 public: reported C repro on 2019/04/11 00:00
android-5-10 kernel BUG in add_grec (2) C error inconclusive 1039 728d 728d 2/2 fixed on 2023/02/24 12:10
upstream kernel BUG in netem_enqueue net 9 706d 931d 22/28 fixed on 2023/02/24 13:50
android-5-10 kernel BUG in cdc_ncm_fill_tx_frame C error 40 1061d 1126d 1/2 fixed on 2021/12/29 12:20
upstream kernel BUG at net/core/skbuff.c:LINE! (3) C done 4399 1368d 2484d 19/28 fixed on 2021/03/10 01:48
upstream kernel BUG at net/core/skbuff.c:LINE! sctp 5 2585d 2655d 3/28 fixed on 2017/10/27 10:10
linux-4.19 kernel BUG in pfkey_send_acquire C done 56 1374d 1404d 1/1 fixed on 2021/03/18 08:30
upstream kernel BUG in llc_sap_action_send_xid_c net C error 61 1108d 1321d 20/28 fixed on 2021/11/10 00:50
upstream kernel BUG in pskb_expand_head net C done 1600 651d 1102d 22/28 fixed on 2023/02/25 08:02
android-49 kernel BUG at net/core/skbuff.c:LINE! C 391 1814d 2050d 0/3 public: reported C repro on 2019/04/12 00:00
android-5-15 kernel BUG in pfkey_send_acquire syz unreliable error 35 739d 773d 0/2 auto-obsoleted due to no activity on 2023/05/12 13:15
linux-4.19 kernel BUG in ip6_mc_hdr 2 626d 721d 0/1 upstream: reported on 2022/11/30 17:44
upstream kernel BUG in fou_build_udp net C 1 567d 567d 22/28 fixed on 2023/06/08 14:41
▶ ▼ Fix bisection attempts (11)
Created Duration User Patch Repo Result
2023/03/01 19:00 29m bisect fix linux-4.14.y OK (0) job log log
2023/01/25 04:23 29m bisect fix linux-4.14.y OK (0) job log log
2022/05/29 15:37 22m bisect fix linux-4.14.y OK (0) job log log
2022/03/12 05:00 22m bisect fix linux-4.14.y OK (0) job log log
2022/02/09 18:26 29m bisect fix linux-4.14.y OK (0) job log log
2021/11/16 08:43 27m bisect fix linux-4.14.y OK (0) job log log
2021/10/17 08:15 27m bisect fix linux-4.14.y OK (0) job log log
2021/09/17 07:47 21m bisect fix linux-4.14.y OK (0) job log log
2021/08/18 07:19 27m bisect fix linux-4.14.y OK (0) job log log
2021/07/19 06:47 22m bisect fix linux-4.14.y OK (0) job log log
2021/06/19 06:16 28m bisect fix linux-4.14.y OK (0) job log log

Sample crash report:
skbuff: skb_under_panic: text:ffffffff86255e1f len:48 put:8 head:ffff8880a5402300 data:ffff8880a54022fc tail:0x2c end:0xc0 dev:sit1
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:104!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 7958 Comm: syz-executor133 Not tainted 4.14.304-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
task: ffff888097ffa240 task.stack: ffff8880962a8000
RIP: 0010:skb_panic+0x172/0x174 net/core/skbuff.c:104
RSP: 0018:ffff8880962aee78 EFLAGS: 00010282
RAX: 0000000000000083 RBX: ffff8880ab7c2140 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed1012c55dc5
RBP: ffffffff8855e7a0 R08: 0000000000000083 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff86255e1f
R13: 0000000000000008 R14: ffff8880b3f0ae40 R15: 00000000000000c0
FS:  00005555570fe300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000094725000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_under_panic net/core/skbuff.c:114 [inline]
 skb_push.cold+0x24/0x24 net/core/skbuff.c:1728
 fou_build_udp+0x2f/0x360 net/ipv4/fou.c:960
 gue_build_header+0xd1/0x110 net/ipv4/fou.c:1003
 ip_tunnel_encap include/net/ip_tunnels.h:342 [inline]
 ip_tunnel_xmit+0x50e/0x33e0 net/ipv4/ip_tunnel.c:731
 sit_tunnel_xmit__ net/ipv6/sit.c:1004 [inline]
 sit_tunnel_xmit+0x1ab/0x2130 net/ipv6/sit.c:1017
 __netdev_start_xmit include/linux/netdevice.h:4054 [inline]
 netdev_start_xmit include/linux/netdevice.h:4063 [inline]
 xmit_one net/core/dev.c:3005 [inline]
 dev_hard_start_xmit+0x188/0x890 net/core/dev.c:3021
 __dev_queue_xmit+0x1d7f/0x2480 net/core/dev.c:3521
 neigh_output include/net/neighbour.h:500 [inline]
 ip_finish_output2+0xba6/0x1340 net/ipv4/ip_output.c:237
 ip_finish_output+0x37c/0xc50 net/ipv4/ip_output.c:325
 NF_HOOK_COND include/linux/netfilter.h:239 [inline]
 ip_output+0x1cd/0x510 net/ipv4/ip_output.c:413
 dst_output include/net/dst.h:470 [inline]
 ip_local_out+0x93/0x170 net/ipv4/ip_output.c:125
 ip_send_skb+0x3a/0xc0 net/ipv4/ip_output.c:1431
 udp_send_skb+0x601/0xb70 net/ipv4/udp.c:833
 udp_sendmsg+0x15a1/0x1c80 net/ipv4/udp.c:1057
 udpv6_sendmsg+0x12ea/0x2560 net/ipv6/udp.c:1193
 inet_sendmsg+0x11a/0x4e0 net/ipv4/af_inet.c:762
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb5/0x100 net/socket.c:656
 ___sys_sendmsg+0x326/0x800 net/socket.c:2062
 __sys_sendmmsg+0x129/0x330 net/socket.c:2152
 SYSC_sendmmsg net/socket.c:2183 [inline]
 SyS_sendmmsg+0x2f/0x50 net/socket.c:2178
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fb08bbac149
RSP: 002b:00007ffe6a52b878 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb08bbac149
RDX: 0000000000000001 RSI: 00000000200017c0 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffe6a52ba18 R09: 00007ffe6a52ba18
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb08bb6f9d0
R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
Code: 8b 4c 24 10 8b 8b 80 00 00 00 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 80 e0 55 88 ff 74 24 10 ff 74 24 20 e8 63 62 e4 ff <0f> 0b e8 d8 58 36 fa 4c 8b 64 24 18 e8 ce 04 60 fa 48 c7 c1 a0 
RIP: skb_panic+0x172/0x174 net/core/skbuff.c:104 RSP: ffff8880962aee78
---[ end trace 40c377f9003b5d5d ]---

Crashes (3066):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/01/29 01:49 linux-4.14.y 3949d1610004 9dfcf09c .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in fou_build_udp
2022/08/31 20:05 linux-4.14.y e548869f356f 51e54e30 .config console log report syz C [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/06/18 11:35 linux-4.14.y 84bae26850e3 8f633d84 .config console log report syz C ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/06/09 12:38 linux-4.14.y b8f3be299d51 0d5abf15 .config console log report syz C ci2-linux-4-14 kernel BUG in fou_build_udp
2022/02/09 22:17 linux-4.14.y 21ad423fe521 0b33604d .config console log report syz C ci2-linux-4-14 kernel BUG in __ip6_append_data
2021/05/16 13:54 linux-4.14.y 7d7d1c0ab3eb f54a5c09 .config console log report syz C ci2-linux-4-14 kernel BUG in llc_sap_action_send_xid_c
2021/03/29 16:01 linux-4.14.y 670d6552eda8 a8529b82 .config console log report syz C ci2-linux-4-14 kernel BUG in ip6_mc_hdr
2021/03/02 16:58 linux-4.14.y 3242aa3a635c 92ead296 .config console log report syz C ci2-linux-4-14 kernel BUG in ip6_mc_hdr
2021/01/21 11:00 linux-4.14.y 2762b48e9611 d4f4eca5 .config console log report syz C ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2021/01/20 08:10 linux-4.14.y 2762b48e9611 63631df1 .config console log report syz C ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2021/01/17 05:02 linux-4.14.y f79dc86058bc 65a7a854 .config console log report syz C ci2-linux-4-14
2020/10/14 10:37 linux-4.14.y cbfa1702aaf6 fc7735a2 .config console log report syz C ci2-linux-4-14
2020/10/03 00:40 linux-4.14.y cbfa1702aaf6 062c9832 .config console log report syz C ci2-linux-4-14
2020/08/17 11:40 linux-4.14.y 14b58326976d 5ce13532 .config console log report syz C ci2-linux-4-14
2020/03/19 02:17 linux-4.14.y 12cd844a39ed 2c31c529 .config console log report syz C ci2-linux-4-14
2019/12/24 12:11 linux-4.14.y e1f7d50ae3a3 be5c2c81 .config console log report syz C ci2-linux-4-14
2019/04/20 21:06 linux-4.14.y 68d7a45eec10 b0e8efcb .config console log report syz C ci2-linux-4-14
2022/06/20 05:01 linux-4.14.y 84bae26850e3 8f633d84 .config console log report syz ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/06/18 10:22 linux-4.14.y 84bae26850e3 8f633d84 .config console log report syz ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/06/16 23:42 linux-4.14.y 84bae26850e3 1719ee24 .config console log report syz ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2021/01/27 22:26 linux-4.14.y 2d2791fce891 a57db36f .config console log report syz ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2021/01/02 14:01 linux-4.14.y 1752938529c6 79264ae3 .config console log report syz ci2-linux-4-14
2020/08/18 04:38 linux-4.14.y 14b58326976d 5ce13532 .config console log report syz ci2-linux-4-14
2021/01/17 14:31 linux-4.14.y 2762b48e9611 813be542 .config console log report info ci2-linux-4-14 kernel BUG at net/core/skbuff.c:LINE!
2022/11/11 03:29 linux-4.14.y e911713e40ca f42ee5d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/11/10 15:22 linux-4.14.y e911713e40ca 3ead01ad .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/11/10 06:32 linux-4.14.y a901bb6c7db7 b2488a87 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/11/09 06:37 linux-4.14.y a901bb6c7db7 5fa28208 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/11/08 14:51 linux-4.14.y a901bb6c7db7 060f945e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/11/04 12:47 linux-4.14.y a901bb6c7db7 6d752409 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/11/03 23:38 linux-4.14.y a901bb6c7db7 6d752409 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/11/03 19:55 linux-4.14.y a901bb6c7db7 7a2ebf95 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/11/03 05:52 linux-4.14.y a85772d7ba90 7a2ebf95 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/31 14:57 linux-4.14.y 41f36d7859a7 2a71366b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/28 15:51 linux-4.14.y 41f36d7859a7 8168b69e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/28 12:19 linux-4.14.y 41f36d7859a7 8168b69e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/28 03:01 linux-4.14.y 41f36d7859a7 5c716ff6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/26 03:47 linux-4.14.y 9d5c0b3a8e1a 2159e4d2 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/25 23:31 linux-4.14.y 9d5c0b3a8e1a 2159e4d2 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/25 07:27 linux-4.14.y 9d5c0b3a8e1a 45645420 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/23 17:43 linux-4.14.y 9d5c0b3a8e1a 23bf86af .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/23 16:10 linux-4.14.y 9d5c0b3a8e1a 23bf86af .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/21 11:35 linux-4.14.y 9d5c0b3a8e1a 63e790dd .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/21 10:25 linux-4.14.y 9d5c0b3a8e1a 63e790dd .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/18 10:17 linux-4.14.y 9d5c0b3a8e1a b31320fc .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/16 03:28 linux-4.14.y 9d5c0b3a8e1a 67cb024c .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/15 13:49 linux-4.14.y 9d5c0b3a8e1a 67cb024c .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/15 05:49 linux-4.14.y 9d5c0b3a8e1a 67cb024c .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/15 02:09 linux-4.14.y 9d5c0b3a8e1a 67cb024c .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/14 23:14 linux-4.14.y 9d5c0b3a8e1a 67cb024c .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/14 21:42 linux-4.14.y 9d5c0b3a8e1a 67cb024c .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/13 16:48 linux-4.14.y 9d5c0b3a8e1a adf90437 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/13 02:08 linux-4.14.y 9d5c0b3a8e1a 3f6b40a1 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/12 15:42 linux-4.14.y 9d5c0b3a8e1a 16a9c9e0 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/11 00:12 linux-4.14.y 9d5c0b3a8e1a 5bcf0c31 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/10 18:36 linux-4.14.y 9d5c0b3a8e1a 5bcf0c31 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/10 14:19 linux-4.14.y 9d5c0b3a8e1a 5bcf0c31 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/08 09:14 linux-4.14.y 9d5c0b3a8e1a aea5da89 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/08 07:38 linux-4.14.y 9d5c0b3a8e1a aea5da89 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/06 04:35 linux-4.14.y 9d5c0b3a8e1a 2c6543ad .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/05 06:39 linux-4.14.y 9d5c0b3a8e1a 267e3bb1 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/04 15:07 linux-4.14.y 9d5c0b3a8e1a eab8f949 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/10/02 22:02 linux-4.14.y 9d5c0b3a8e1a feb56351 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/09/30 21:55 linux-4.14.y 9d5c0b3a8e1a feb56351 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/09/30 18:46 linux-4.14.y 9d5c0b3a8e1a feb56351 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/09/30 17:23 linux-4.14.y 9d5c0b3a8e1a feb56351 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/09/29 17:15 linux-4.14.y 9d5c0b3a8e1a 45fd7169 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/09/28 13:03 linux-4.14.y 9d5c0b3a8e1a 75c78242 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/09/28 11:14 linux-4.14.y 9d5c0b3a8e1a 75c78242 .config console log report info [disk image] [vmlinux] ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/09/27 08:05 linux-4.14.y 4edbf74132a4 10323ddf .config console log report info ci2-linux-4-14 kernel BUG in pfkey_send_acquire
2022/07/23 19:25 linux-4.14.y 9c3bf9cf362f 22343af4 .config console log report info ci2-linux-4-14 kernel BUG in ip6_mc_hdr
2022/04/29 15:37 linux-4.14.y e3a56aaade89 44a5ca63 .config console log report info ci2-linux-4-14 kernel BUG in igmpv3_newpack
2021/01/17 14:15 linux-4.14.y 2762b48e9611 813be542 .config console log report info ci2-linux-4-14
2019/04/12 14:42 linux-4.14.y 1ec8f1f0bffe 4f421599 .config console log report ci2-linux-4-14
* Struck through repros no longer work on HEAD.