syzbot


WARNING in ip_rt_bug (2)

Status: upstream: reported C repro on 2022/10/12 18:26
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+e738404dcd14b620923c@syzkaller.appspotmail.com
First crash: 1521d, last: 2d05h
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config
  
Fix bisection: failed (error log, bisect log)
  
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] WARNING in ip_rt_bug (2) 0 (1) 2022/10/12 18:26
Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in ip_rt_bug C error 2 968d 1516d 0/1 upstream: reported C repro on 2020/04/03 11:53
linux-4.14 WARNING in ip_rt_bug C inconclusive 1 1445d 1505d 0/1 upstream: reported C repro on 2020/04/15 03:43
linux-6.1 WARNING in ip_rt_bug (2) 1 55d 55d 0/3 upstream: reported on 2024/04/04 04:22
linux-6.1 WARNING in ip_rt_bug 1 286d 286d 0/3 auto-obsoleted due to no activity on 2023/11/25 06:32
upstream WARNING in ip_rt_bug net 1 2249d 2242d 0/26 auto-closed as invalid on 2019/02/22 10:34
Last patch testing requests (10)
Created Duration User Patch Repo Result
2024/03/10 23:38 16m retest repro net-next report log
2024/02/20 13:04 26m retest repro linux-next error OK
2024/02/06 02:57 18m retest repro net report log
2024/01/22 15:51 17m retest repro upstream report log
2024/01/08 15:15 25m retest repro upstream report log
2024/01/08 14:38 51m retest repro upstream report log
2023/12/24 05:50 14m retest repro net-next report log
2023/12/01 05:36 14m retest repro linux-next report log
2023/11/17 00:15 15m retest repro net report log
2023/11/01 19:27 13m retest repro upstream report log
Fix bisection attempts (4)
Created Duration User Patch Repo Result
2020/12/07 15:25 8m bisect fix upstream error job log (0)
2020/11/07 07:20 16m bisect fix upstream job log (0) log
2020/10/08 05:21 18m bisect fix upstream job log (0) log
2020/07/29 09:01 17m bisect fix upstream job log (0) log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3651 at net/ipv4/route.c:1246 kfree_skb include/linux/skbuff.h:1114 [inline]
WARNING: CPU: 0 PID: 3651 at net/ipv4/route.c:1246 ip_rt_bug+0x24/0x130 net/ipv4/route.c:1245
Modules linked in:
CPU: 0 PID: 3651 Comm: syz-executor319 Not tainted 5.17.0-rc2-syzkaller-00398-gd8ad2ce873ab #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:ip_rt_bug+0x24/0x130 net/ipv4/route.c:1246
Code: 01 0f 1f 44 00 00 55 48 89 d5 53 48 83 ec 08 e8 02 3c cd f9 66 90 e8 fb 3b cd f9 e8 f6 3b cd f9 31 f6 48 89 ef e8 3c d7 7d ff <0f> 0b 48 83 c4 08 31 c0 5b 5d c3 e8 dc 3b cd f9 48 8d 7d 10 48 b8
RSP: 0018:ffffc90000d87438 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffffffff8d3169c0 RCX: 0000000000000000
RDX: ffff888026076080 RSI: ffffffff87aa7254 RDI: 0000000000000000
RBP: ffff88801ba531c0 R08: 0000000000000001 R09: ffffffff8ffc39df
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880204d9800
R13: ffff88801ba531c0 R14: 0000000000000000 R15: ffff88801ba53218
FS:  00005555566c0300(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002014f000 CR3: 0000000013a7f000 CR4: 0000000000150ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dst_output include/net/dst.h:451 [inline]
 ip_local_out net/ipv4/ip_output.c:126 [inline]
 ip_send_skb net/ipv4/ip_output.c:1570 [inline]
 ip_push_pending_frames+0x125/0x2b0 net/ipv4/ip_output.c:1590
 icmp_push_reply+0x351/0x4a0 net/ipv4/icmp.c:393
 __icmp_send+0xb99/0x13d0 net/ipv4/icmp.c:769
 icmp_send include/net/icmp.h:43 [inline]
 ip_options_compile+0xad/0xf0 net/ipv4/ip_options.c:486
 ip_rcv_options net/ipv4/ip_input.c:279 [inline]
 ip_rcv_finish_core.constprop.0+0x4b6/0x1e90 net/ipv4/ip_input.c:371
 ip_rcv_finish+0x135/0x2f0 net/ipv4/ip_input.c:427
 NF_HOOK include/linux/netfilter.h:307 [inline]
 NF_HOOK include/linux/netfilter.h:301 [inline]
 ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:540
 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5351
 __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5465
 netif_receive_skb_internal net/core/dev.c:5551 [inline]
 netif_receive_skb+0x13e/0x8e0 net/core/dev.c:5610
 tun_rx_batched.isra.0+0x460/0x720 drivers/net/tun.c:1516
 tun_get_user+0x257e/0x3720 drivers/net/tun.c:1963
 tun_chr_write_iter+0xdd/0x1a0 drivers/net/tun.c:1993
 call_write_iter include/linux/fs.h:2074 [inline]
 new_sync_write+0x431/0x660 fs/read_write.c:503
 vfs_write+0x7cd/0xae0 fs/read_write.c:590
 ksys_write+0x12d/0x250 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7bf9811499
Code: 28 c3 e8 2a 14 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:00007ffd08006d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7bf9811499
RDX: 000000000000100c RSI: 0000000020000240 RDI: 0000000000000005
RBP: 00007f7bf97d5480 R08: 0000000000002c00 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7bf97d5510
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

Crashes (120):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/02/07 06:48 upstream d8ad2ce873ab a7dab638 .config console log report syz C ci-qemu-upstream WARNING in ip_rt_bug
2020/04/22 10:22 upstream 189522da8b3a 2e44d63e .config console log report syz C ci-upstream-kasan-gce-root
2020/03/29 12:33 net-old a0ba26f37ea0 05736b29 .config console log report syz C ci-upstream-net-this-kasan-gce
2020/03/29 12:39 net-next-old 1a147b74c2fd 05736b29 .config console log report syz C ci-upstream-net-kasan-gce
2020/04/24 19:57 linux-next ac935d227366 03d97a1b .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2024/05/23 21:13 upstream 8f6a15f095a6 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in ip_rt_bug
2024/04/26 01:17 upstream e33c4963bf53 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ip_rt_bug
2024/04/11 00:05 upstream 480e035fc4c7 56086b24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ip_rt_bug
2024/04/09 04:48 upstream 480e035fc4c7 53df08b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ip_rt_bug
2024/04/06 20:08 upstream 480e035fc4c7 ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ip_rt_bug
2024/04/04 20:24 upstream 480e035fc4c7 0ee3535e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ip_rt_bug
2024/04/04 18:35 upstream 480e035fc4c7 0ee3535e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ip_rt_bug
2024/04/03 10:15 upstream 480e035fc4c7 7925100d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ip_rt_bug
2024/03/31 04:06 upstream 480e035fc4c7 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ip_rt_bug
2024/03/30 18:11 upstream 480e035fc4c7 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ip_rt_bug
2024/03/30 16:04 upstream 480e035fc4c7 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ip_rt_bug
2024/03/30 13:40 upstream 480e035fc4c7 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ip_rt_bug
2024/03/30 07:30 upstream fe46a7dd189e c52bcb23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in ip_rt_bug
2024/03/30 05:32 upstream fe46a7dd189e c52bcb23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in ip_rt_bug
2024/03/30 05:31 upstream fe46a7dd189e c52bcb23 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in ip_rt_bug
2023/09/19 03:01 upstream 2cf0f7156238 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in ip_rt_bug
2024/04/08 01:22 upstream fe46a7dd189e ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in ip_rt_bug
2022/05/26 03:52 upstream d7227785e384 3037caa9 .config console log report info ci-qemu-upstream WARNING in ip_rt_bug
2022/01/31 13:57 upstream 26291c54e111 6b7c57fe .config console log report info ci-upstream-kasan-gce-smack-root WARNING in ip_rt_bug
2024/04/30 06:53 net ba1cb99b559e 27e33c58 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ip_rt_bug
2024/04/27 12:48 net 6a30653b604a 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ip_rt_bug
2024/03/17 13:33 net ea80e3ed09ab d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ip_rt_bug
2024/03/17 02:57 net ea80e3ed09ab d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ip_rt_bug
2024/02/25 20:47 net 2a770cdc4382 8d446f15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ip_rt_bug
2023/09/20 22:12 net 4a0f07d71b04 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ip_rt_bug
2023/08/16 18:02 net de4c5efeeca7 7773e940 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ip_rt_bug
2023/08/16 16:58 net de4c5efeeca7 7773e940 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ip_rt_bug
2023/07/16 12:25 net 0dd1805fe498 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ip_rt_bug
2024/05/27 05:09 net-next 66ad4829ddd0 a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/26 06:57 net-next 66ad4829ddd0 a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/23 05:26 net-next 4b377b4868ef 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/22 14:31 net-next 4b377b4868ef 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/19 17:07 net-next 4b377b4868ef c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/16 19:54 net-next 1b294a1f3561 ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/16 13:33 net-next 1b294a1f3561 ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/16 07:18 net-next 1b294a1f3561 ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/15 08:21 net-next 654de42f3fc6 fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/14 15:37 net-next 5c1672705a1a fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/14 07:03 net-next c85e41bfe7af fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/12 21:07 net-next cddd2dc6390b 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/12 19:45 net-next cddd2dc6390b 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/12 04:54 net-next cddd2dc6390b 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/12 00:33 net-next cddd2dc6390b 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/11 13:28 net-next b9d5f5711dd8 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/11 12:20 net-next b9d5f5711dd8 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/09 11:04 net-next 8d8b1a422c46 20bf80e1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/07 22:29 net-next 7824463aaea9 cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/06 23:12 net-next 8c4e4798123f c035c6de .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/05 16:07 net-next cdc74c9d06e7 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/04 18:20 net-next 173e7622ccb3 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/04 02:41 net-next 5829614a7b3b 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/05/02 23:52 net-next dcc61472534e ddfc15a1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/03/25 13:24 net-next 237bb5f7f7f5 0ea90952 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/03/23 20:59 net-next 237bb5f7f7f5 0ea90952 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/03/18 14:35 net-next 237bb5f7f7f5 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/02/25 23:16 net-next d662c5b3ce6d 8d446f15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2023/12/25 14:25 net-next e9301af385e7 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2023/12/10 05:25 net-next 5a08d0065a91 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2023/12/03 10:35 net-next 8470e4368b0f f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2023/05/16 08:07 net-next 6d4ff8aed3b3 71b00cfb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2023/05/14 06:43 net-next 7eef636ecc58 2b9ba477 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ip_rt_bug
2024/04/24 01:34 linux-next 7b4f2bc91c15 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ip_rt_bug
2024/04/04 06:39 linux-next 727900b675b7 51c4dcff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ip_rt_bug
2024/03/31 20:31 linux-next a6bd6c933339 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ip_rt_bug
2024/04/05 00:45 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 707081b61156 0ee3535e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in ip_rt_bug
2021/01/12 08:59 net-next-old beb401ec5006 2c1f2513 .config console log report info ci-upstream-net-kasan-gce
* Struck through repros no longer work on HEAD.