syzbot


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: 1181d, last: 1d04h
similar bugs (16):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-44 kernel BUG at net/core/skbuff.c:LINE! C 79 957d 1182d 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 493 22d 1166d 0/1 upstream: reported C repro on 2019/04/27 20:12
android-54 kernel BUG in pfkey_send_acquire syz 32 507d 535d 0/2 upstream: reported syz repro on 2021/01/17 15:19
upstream kernel BUG at net/core/skbuff.c:LINE! (2) C 562 1621d 1710d 4/22 fixed on 2018/01/29 03:39
android-5-10 kernel BUG in add_grec C error 83 100d 174d 2/3 fixed on 2022/03/29 10:01
android-54 kernel BUG at net/core/skbuff.c:LINE! C 199 12d 906d 0/2 upstream: reported C repro on 2020/01/12 09:43
android-414 kernel BUG at net/core/skbuff.c:LINE! C 2743 945d 1182d 0/1 public: reported C repro on 2019/04/11 00:00
android-5-10 kernel BUG in add_grec (2) 371 1d04h 99d 0/3 premoderation: reported on 2022/03/29 11:58
upstream kernel BUG in netem_enqueue 2 26d 63d 21/22 internal: reported on 2022/05/04 17:12
android-5-10 kernel BUG in cdc_ncm_fill_tx_frame C error 40 192d 257d 1/3 fixed on 2021/12/29 12:20
upstream kernel BUG at net/core/skbuff.c:LINE! (3) C done 4399 499d 1616d 21/22 fixed on 2021/03/10 01:48
upstream kernel BUG at net/core/skbuff.c:LINE! 5 1716d 1786d 3/22 fixed on 2017/10/27 10:10
linux-4.19 kernel BUG in pfkey_send_acquire C done 56 505d 535d 1/1 fixed on 2021/03/18 08:30
upstream kernel BUG in llc_sap_action_send_xid_c C error 61 239d 453d 22/22 fixed on 2021/11/10 00:50
upstream kernel BUG in pskb_expand_head C done 285 3h08m 233d 21/22 upstream: reported C repro on 2021/11/15 08:38
android-49 kernel BUG at net/core/skbuff.c:LINE! C 391 945d 1181d 0/3 public: reported C repro on 2019/04/12 00:00

Sample crash report:
skbuff: skb_over_panic: text:ffffffff864f820d len:232 put:72 head:ffff8880ab5c65c0 data:ffff8880ab5c65c0 tail:0xe8 end:0xc0 dev:<NULL>
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:104!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 7991 Comm: syz-executor341 Not tainted 4.14.284-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888096670080 task.stack: ffff88809a358000
RIP: 0010:skb_panic+0x172/0x174 net/core/skbuff.c:104
RSP: 0018:ffff88809a35f1c8 EFLAGS: 00010282
RAX: 0000000000000086 RBX: ffff8880b0048e80 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff878bc800 RDI: ffffed101346be2f
RBP: ffffffff8855bb20 R08: 0000000000000086 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff864f820d
R13: 0000000000000048 R14: ffffffff8855b380 R15: 00000000000000c0
FS:  00007fe8aad22700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd3bba3ff8 CR3: 00000000b100a000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_over_panic net/core/skbuff.c:109 [inline]
 skb_put.cold+0x24/0x24 net/core/skbuff.c:1708
 dump_esp_combs net/key/af_key.c:3014 [inline]
 pfkey_send_acquire+0x161d/0x2360 net/key/af_key.c:3235
 km_query+0xa9/0x1b0 net/xfrm/xfrm_state.c:1984
 xfrm_state_find+0x1847/0x27c0 net/xfrm/xfrm_state.c:1026
 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:1385 [inline]
 xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:1429 [inline]
 xfrm_resolve_and_create_bundle+0x29b/0x2630 net/xfrm/xfrm_policy.c:1721
 xfrm_lookup+0x1ee/0x1790 net/xfrm/xfrm_policy.c:2031
 xfrm_lookup_route+0x33/0x1b0 net/xfrm/xfrm_policy.c:2150
 ip_route_output_flow+0xf9/0x130 net/ipv4/route.c:2630
 udp_sendmsg+0x13b3/0x1c80 net/ipv4/udp.c:1025
 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+0x46/0xbb
RIP: 0033:0x7fe8aad999e9
RSP: 002b:00007fe8aad22308 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007fe8aae1b3f8 RCX: 00007fe8aad999e9
RDX: 000000000800001d RSI: 0000000020007fc0 RDI: 0000000000000003
RBP: 00007fe8aae1b3f0 R08: 0000000000000000 R09: 0000000000000000
R10: 000000a742250118 R11: 0000000000000246 R12: 00007fe8aae1b3fc
R13: 00007fe8aade82bc R14: 0100000000000000 R15: 0000000000022000
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 c0 b3 55 88 ff 74 24 10 ff 74 24 20 e8 04 6b e4 ff <0f> 0b e8 78 ac 36 fa 4c 8b 64 24 18 e8 2e 4e 60 fa 48 c7 c1 e0 
RIP: skb_panic+0x172/0x174 net/core/skbuff.c:104 RSP: ffff88809a35f1c8
---[ end trace 5881563e2561e955 ]---

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2022/05/29 15:59 linux-4.14.y 501eec4f9e13 0b33604d .config log report syz C
ci2-linux-4-14 2022/03/12 05:22 linux-4.14.y af48f51cb593 0b33604d .config log report syz C
ci2-linux-4-14 2022/02/09 18:56 linux-4.14.y 21ad423fe521 f54a5c09 .config log report syz C
ci2-linux-4-14 2021/11/16 09:11 linux-4.14.y 5f9f3b0057d5 f54a5c09 .config log report syz C
ci2-linux-4-14 2021/10/17 08:42 linux-4.14.y f6b016a9d961 f54a5c09 .config log report syz C
ci2-linux-4-14 2021/09/17 08:08 linux-4.14.y f96eb53cbd76 f54a5c09 .config log report syz C
ci2-linux-4-14 2021/08/18 07:47 linux-4.14.y 162b95d01320 f54a5c09 .config log report syz C
ci2-linux-4-14 2021/07/19 07:09 linux-4.14.y 4e68c9b0763f f54a5c09 .config log report syz C
ci2-linux-4-14 2021/06/19 06:45 linux-4.14.y cfb41ef9deb1 f54a5c09 .config log report syz C
Crashes (2878):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2022/06/18 11:35 linux-4.14.y 84bae26850e3 8f633d84 .config log report syz C kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/09 12:38 linux-4.14.y b8f3be299d51 0d5abf15 .config log report syz C kernel BUG in fou_build_udp
ci2-linux-4-14 2022/02/09 22:17 linux-4.14.y 21ad423fe521 0b33604d .config log report syz C kernel BUG in __ip6_append_data
ci2-linux-4-14 2021/05/16 13:54 linux-4.14.y 7d7d1c0ab3eb f54a5c09 .config log report syz C kernel BUG in llc_sap_action_send_xid_c
ci2-linux-4-14 2021/03/29 16:01 linux-4.14.y 670d6552eda8 a8529b82 .config log report syz C kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/03/02 16:58 linux-4.14.y 3242aa3a635c 92ead296 .config log report syz C kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/01/21 11:00 linux-4.14.y 2762b48e9611 d4f4eca5 .config log report syz C kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2021/01/20 08:10 linux-4.14.y 2762b48e9611 63631df1 .config log report syz C kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2021/01/17 05:02 linux-4.14.y f79dc86058bc 65a7a854 .config log report syz C
ci2-linux-4-14 2020/10/14 10:37 linux-4.14.y cbfa1702aaf6 fc7735a2 .config log report syz C
ci2-linux-4-14 2020/10/03 00:40 linux-4.14.y cbfa1702aaf6 062c9832 .config log report syz C
ci2-linux-4-14 2020/08/17 11:40 linux-4.14.y 14b58326976d 5ce13532 .config log report syz C
ci2-linux-4-14 2020/03/19 02:17 linux-4.14.y 12cd844a39ed 2c31c529 .config log report syz C
ci2-linux-4-14 2019/12/24 12:11 linux-4.14.y e1f7d50ae3a3 be5c2c81 .config log report syz C
ci2-linux-4-14 2019/04/20 21:06 linux-4.14.y 68d7a45eec10 b0e8efcb .config log report syz C
ci2-linux-4-14 2022/06/20 05:01 linux-4.14.y 84bae26850e3 8f633d84 .config log report syz kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/18 10:22 linux-4.14.y 84bae26850e3 8f633d84 .config log report syz kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/16 23:42 linux-4.14.y 84bae26850e3 1719ee24 .config log report syz kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2021/01/27 22:26 linux-4.14.y 2d2791fce891 a57db36f .config log report syz kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2021/01/02 14:01 linux-4.14.y 1752938529c6 79264ae3 .config log report syz
ci2-linux-4-14 2020/08/18 04:38 linux-4.14.y 14b58326976d 5ce13532 .config log report syz
ci2-linux-4-14 2021/01/17 14:31 linux-4.14.y 2762b48e9611 813be542 .config log report info kernel BUG at net/core/skbuff.c:LINE!
ci2-linux-4-14 2022/07/05 15:19 linux-4.14.y ed2e96e11936 bff65f44 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/07/05 09:02 linux-4.14.y ed2e96e11936 bff65f44 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/07/04 18:43 linux-4.14.y ed2e96e11936 bff65f44 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/07/04 15:29 linux-4.14.y ed2e96e11936 bff65f44 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/07/02 18:33 linux-4.14.y ed2e96e11936 1434eec0 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/07/02 04:50 linux-4.14.y f051383ef03b 1434eec0 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/30 13:25 linux-4.14.y f051383ef03b 1434eec0 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/29 18:44 linux-4.14.y f051383ef03b 1434eec0 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/29 13:38 linux-4.14.y f051383ef03b 1434eec0 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/28 04:56 linux-4.14.y f051383ef03b ef82eb2c .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/28 02:33 linux-4.14.y f051383ef03b ef82eb2c .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/27 11:58 linux-4.14.y f051383ef03b a371c43c .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/25 15:17 linux-4.14.y f051383ef03b a371c43c .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/24 14:27 linux-4.14.y 84bae26850e3 a371c43c .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/24 07:55 linux-4.14.y 84bae26850e3 a5dbd430 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/23 12:40 linux-4.14.y 84bae26850e3 912f5df7 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/22 21:33 linux-4.14.y 84bae26850e3 912f5df7 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/22 16:46 linux-4.14.y 84bae26850e3 912f5df7 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/21 01:29 linux-4.14.y 84bae26850e3 0fc5c330 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/20 15:46 linux-4.14.y 84bae26850e3 b9406563 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/18 05:59 linux-4.14.y 84bae26850e3 8f633d84 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/17 07:34 linux-4.14.y 84bae26850e3 cb58b3b2 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/17 06:29 linux-4.14.y 84bae26850e3 cb58b3b2 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/15 14:48 linux-4.14.y 1ccc597f801c 1719ee24 .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/06/14 22:42 linux-4.14.y 1ccc597f801c 127d1faf .config log report info kernel BUG in pfkey_send_acquire
ci2-linux-4-14 2022/04/29 15:37 linux-4.14.y e3a56aaade89 44a5ca63 .config log report info kernel BUG in igmpv3_newpack
ci2-linux-4-14 2022/04/24 07:17 linux-4.14.y 15a1c6b6f516 131df97d .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2022/03/30 13:50 linux-4.14.y af1af6ebca0e 42718dd6 .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2022/03/18 04:33 linux-4.14.y eb045674aab3 e2d91b1d .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2022/03/12 21:32 linux-4.14.y af48f51cb593 9e8eaa75 .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2022/01/10 17:59 linux-4.14.y bfdef05c8da4 ddb0ab8c .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2022/01/03 17:44 linux-4.14.y a6ca7c65b137 4a3f34f2 .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/12/20 21:00 linux-4.14.y 9dfbac0e6b86 62bd192b .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/12/15 20:10 linux-4.14.y 9dfbac0e6b86 572bcb40 .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/12/14 11:33 linux-4.14.y 9dfbac0e6b86 5d14b1ea .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/12/13 14:20 linux-4.14.y c01d4d1b885d 0304899b .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/12/13 12:50 linux-4.14.y c01d4d1b885d 0304899b .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/12/11 02:09 linux-4.14.y c01d4d1b885d 49ca1f59 .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/05/20 05:55 linux-4.14.y 7d7d1c0ab3eb a343ba6b .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/05/18 08:46 linux-4.14.y 7d7d1c0ab3eb a343ba6b .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/04/30 19:25 linux-4.14.y 7d7d1c0ab3eb 77e2b668 .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/04/23 23:14 linux-4.14.y cf256fbcbe34 17f0b706 .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/04/23 01:19 linux-4.14.y cf256fbcbe34 590921a5 .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/04/22 23:47 linux-4.14.y cf256fbcbe34 590921a5 .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/04/22 06:43 linux-4.14.y cf256fbcbe34 2bc8999a .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/04/21 20:58 linux-4.14.y cf256fbcbe34 2bc8999a .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/04/20 07:45 linux-4.14.y cf256fbcbe34 c0ced557 .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/04/19 20:38 linux-4.14.y cf256fbcbe34 4285c989 .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/04/19 16:20 linux-4.14.y cf256fbcbe34 50f523d7 .config log report info kernel BUG in ip6_mc_hdr
ci2-linux-4-14 2021/01/17 14:15 linux-4.14.y 2762b48e9611 813be542 .config log report info
ci2-linux-4-14 2019/04/12 14:42 linux-4.14.y 1ec8f1f0bffe 4f421599 .config log report