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WARNING in hsr_forward_skb

Status: upstream: reported C repro on 2019/04/10 20:50
Reported-by: syzbot+fed9e12307896dd86f23@syzkaller.appspotmail.com
First crash: 2287d, last: 865d
▶ ▼ Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in hsr_forward_skb -1 C done done 1310 1557d 2385d 20/29 fixed on 2021/11/10 00:50
linux-4.14 WARNING in hsr_forward_skb -1 C 245 865d 2224d 0/1 upstream: reported C repro on 2019/06/12 08:24

Sample crash report:
batman_adv: batadv0: Interface activated: batadv_slave_1
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
------------[ cut here ]------------
HSR: VLAN not yet supported
WARNING: CPU: 0 PID: 8107 at net/hsr/hsr_forward.c:336 hsr_fill_frame_info net/hsr/hsr_forward.c:336 [inline]
WARNING: CPU: 0 PID: 8107 at net/hsr/hsr_forward.c:336 hsr_forward_skb+0x177e/0x1c30 net/hsr/hsr_forward.c:370
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 8107 Comm: syz-executor398 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:hsr_fill_frame_info net/hsr/hsr_forward.c:336 [inline]
RIP: 0010:hsr_forward_skb+0x177e/0x1c30 net/hsr/hsr_forward.c:370
Code: 4c 89 ea 48 8b 7c 24 28 e8 df 5a ff ff e9 c7 f5 ff ff e8 55 3f 77 f9 48 c7 c7 20 e3 70 89 c6 05 a6 67 23 03 01 e8 27 77 07 00 <0f> 0b 48 ba 00 00 00 00 00 fc ff df 4c 89 f0 48 c1 e8 03 0f b6 0c
RSP: 0018:ffff8880957af7e0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1012af5eee
RBP: ffff8880a91e0e00 R08: 0000000000000000 R09: 0000000000000731
R10: 0000000000000006 R11: 0000000000000000 R12: ffff8880a91e0ec6
R13: ffff8880a328e900 R14: ffff8880a2e6884e R15: ffff8880a2e68842
 hsr_dev_xmit+0x6b/0xa0 net/hsr/hsr_device.c:242
 __netdev_start_xmit include/linux/netdevice.h:4349 [inline]
 netdev_start_xmit include/linux/netdevice.h:4363 [inline]
 xmit_one net/core/dev.c:3256 [inline]
 dev_hard_start_xmit+0x1a8/0x920 net/core/dev.c:3272
 __dev_queue_xmit+0x269d/0x2e00 net/core/dev.c:3838
 packet_snd net/packet/af_packet.c:2988 [inline]
 packet_sendmsg+0x25ae/0x7720 net/packet/af_packet.c:3013
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 __sys_sendto+0x21a/0x320 net/socket.c:1899
 __do_sys_sendto net/socket.c:1911 [inline]
 __se_sys_sendto net/socket.c:1907 [inline]
 __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1907
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fa7699934b9
Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe13bcd3e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007ffe13bcd408 RCX: 00007fa7699934b9
RDX: 000000000000000e RSI: 0000000020000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000020000100 R09: 0000000000000014
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe13bcd410
R13: 00007ffe13bcd430 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (363):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/12/17 07:22 linux-4.19.y 3f8a27f9e27b 05494336 .config console log report syz C [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/12/05 21:43 linux-4.19.y 3f8a27f9e27b 045cbb84 .config console log report syz C [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/08/27 04:37 linux-4.19.y 3f8a27f9e27b 07177916 .config console log report syz C ci2-linux-4-19 WARNING in hsr_forward_skb
2022/07/03 04:03 linux-4.19.y 3f8a27f9e27b 1434eec0 .config console log report syz C ci2-linux-4-19 WARNING in hsr_forward_skb
2022/05/12 08:36 linux-4.19.y 3f8a27f9e27b beb0b407 .config console log report syz C ci2-linux-4-19 WARNING in hsr_forward_skb
2021/12/31 18:22 linux-4.19.y 3f8a27f9e27b 36bd2e48 .config console log report syz C ci2-linux-4-19 WARNING in hsr_forward_skb
2021/02/23 19:41 linux-4.19.y 2d19be4653f5 fcc6d71b .config console log report syz C ci2-linux-4-19 WARNING in hsr_forward_skb
2020/09/30 01:25 linux-4.19.y 10ad6cfd5736 5abc3f1a .config console log report syz C ci2-linux-4-19
2019/12/19 18:15 linux-4.19.y 7d120bf21c05 36650b4b .config console log report syz C ci2-linux-4-19
2019/04/10 20:28 linux-4.19.y 4d552acf3370 65b612b7 .config console log report syz C ci2-linux-4-19
2020/08/13 20:01 linux-4.19.y c14d30dc9987 ee7cb8b6 .config console log report syz ci2-linux-4-19
2023/03/01 22:57 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2023/02/21 00:17 linux-4.19.y 3f8a27f9e27b 2414209c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2023/02/20 08:08 linux-4.19.y 3f8a27f9e27b bcdf85f8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2023/02/15 07:22 linux-4.19.y 3f8a27f9e27b e62ba3c1 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2023/02/08 23:03 linux-4.19.y 3f8a27f9e27b fc9c934e .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2023/02/08 07:59 linux-4.19.y 3f8a27f9e27b 15c3d445 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2023/02/05 01:43 linux-4.19.y 3f8a27f9e27b be607b78 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2023/01/28 18:30 linux-4.19.y 3f8a27f9e27b 9dfcf09c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2023/01/27 17:12 linux-4.19.y 3f8a27f9e27b 9dfcf09c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2023/01/25 13:55 linux-4.19.y 3f8a27f9e27b 9dfcf09c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2023/01/24 12:00 linux-4.19.y 3f8a27f9e27b 9dfcf09c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2023/01/11 15:44 linux-4.19.y 3f8a27f9e27b 96166539 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/12/27 06:05 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/12/26 05:33 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/12/26 04:09 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/12/25 23:56 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/12/23 20:42 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/12/22 10:59 linux-4.19.y 3f8a27f9e27b 4067838e .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/12/13 22:51 linux-4.19.y 3f8a27f9e27b f6511626 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/12/13 15:05 linux-4.19.y 3f8a27f9e27b 67be1ae7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/12/05 21:19 linux-4.19.y 3f8a27f9e27b 045cbb84 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/12/01 03:50 linux-4.19.y 3f8a27f9e27b 4c2a66e8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/12/01 02:37 linux-4.19.y 3f8a27f9e27b 4c2a66e8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/11/30 10:03 linux-4.19.y 3f8a27f9e27b 579a3740 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/11/27 19:50 linux-4.19.y 3f8a27f9e27b f4470a7b .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/11/25 09:06 linux-4.19.y 3f8a27f9e27b 74a66371 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/11/22 13:13 linux-4.19.y 3f8a27f9e27b 1c576c23 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/11/20 05:27 linux-4.19.y 3f8a27f9e27b 5bb70014 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/11/17 17:11 linux-4.19.y 3f8a27f9e27b 4ba8ab94 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/11/14 22:59 linux-4.19.y 3f8a27f9e27b 97de9cfc .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/11/07 18:07 linux-4.19.y 3f8a27f9e27b a779b11a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/11/04 05:47 linux-4.19.y 3f8a27f9e27b 6d752409 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/10/16 14:16 linux-4.19.y 3f8a27f9e27b 67cb024c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/10/15 17:25 linux-4.19.y 3f8a27f9e27b 67cb024c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/10/14 20:28 linux-4.19.y 3f8a27f9e27b 4954e4b2 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/10/13 22:28 linux-4.19.y 3f8a27f9e27b adf90437 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/10/09 14:57 linux-4.19.y 3f8a27f9e27b aea5da89 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/10/08 03:29 linux-4.19.y 3f8a27f9e27b 79a59635 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/10/06 13:32 linux-4.19.y 3f8a27f9e27b 2c6543ad .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/10/05 19:24 linux-4.19.y 3f8a27f9e27b 267e3bb1 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/10/03 18:52 linux-4.19.y 3f8a27f9e27b feb56351 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/10/03 00:49 linux-4.19.y 3f8a27f9e27b feb56351 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/10/02 10:42 linux-4.19.y 3f8a27f9e27b feb56351 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2022/10/01 11:21 linux-4.19.y 3f8a27f9e27b feb56351 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in hsr_forward_skb
2021/01/11 21:10 linux-4.19.y 610bdbf6a174 2c1f2513 .config console log report info ci2-linux-4-19
* Struck through repros no longer work on HEAD.