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BUG: soft lockup in sock_close

Status: upstream: reported C repro on 2024/03/25 07:28
Reported-by: syzbot+8e44f6baf770f194eef0@syzkaller.appspotmail.com
First crash: 542d, last: 5d16h
▶ ▼ Similar bugs (13)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 INFO: rcu detected stall in sock_close (3) origin:upstream 1 C 9 15d 483d 0/3 upstream: reported C repro on 2024/05/20 00:06
android-5-15 BUG: soft lockup in sock_close origin:downstream 1 C done 356 27d 537d 0/2 upstream: reported C repro on 2024/03/26 23:21
upstream INFO: rcu detected stall in sock_close (5) wireless 1 syz 33 19d 60d 0/29 upstream: reported syz repro on 2025/07/16 17:01
android-6-1 BUG: soft lockup in sock_close origin:downstream 1 C error 7 4d08h 537d 0/2 upstream: reported C repro on 2024/03/27 04:09
linux-6.1 BUG: soft lockup in sock_close origin:upstream 1 syz error 1 265d 265d 0/3 upstream: reported syz repro on 2024/12/23 18:51
linux-5.15 INFO: rcu detected stall in sock_close (2) 1 1 599d 599d 0/3 auto-obsoleted due to no activity on 2024/05/03 14:38
upstream INFO: rcu detected stall in sock_close (4) net 1 2 689d 727d 0/29 auto-obsoleted due to no activity on 2024/01/24 15:51
linux-6.1 INFO: rcu detected stall in sock_close (3) 1 1 490d 490d 0/3 auto-obsoleted due to no activity on 2024/08/21 03:02
linux-6.1 INFO: rcu detected stall in sock_close origin:upstream 1 C done 1 798d 798d 3/3 fixed on 2023/09/23 10:26
linux-6.1 INFO: rcu detected stall in sock_close (2) 1 1 592d 592d 0/3 auto-obsoleted due to no activity on 2024/05/11 05:25
upstream INFO: rcu detected stall in sock_close (3) tipc 1 C done done 5 1399d 1894d 0/29 closed as invalid on 2022/02/08 10:42
linux-5.15 INFO: rcu detected stall in sock_close 1 C error 2 777d 831d 0/3 auto-obsoleted due to no activity on 2023/11/07 13:02
linux-6.6 INFO: rcu detected stall in sock_close 1 syz 1 20d 20d 0/2 upstream: reported syz repro on 2025/08/25 14:21
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/07/06 20:06 8m retest repro android13-5.10-lts report log
2025/07/06 20:06 16m retest repro android13-5.10-lts report log
2025/07/06 20:06 16m retest repro android13-5.10-lts report log
2025/07/06 20:06 16m retest repro android13-5.10-lts report log
2025/07/06 20:06 14m retest repro android13-5.10-lts report log
2025/06/06 13:33 22m retest repro android13-5.10-lts report log
2025/06/06 13:33 14m retest repro android13-5.10-lts report log
2025/03/18 17:01 9m retest repro android13-5.10-lts report log
2025/02/05 09:07 14m retest repro android13-5.10-lts report log
2025/02/05 09:07 10m retest repro android13-5.10-lts report log

Sample crash report:
RBP: 00007fa0348f9320 R08: 0000000000000000 R09: 0000000000000000
R10: 00002000000003c0 R11: 0000000000000246 R12: 00007fa0348c6084
R13: 0000200000001480 R14: 0000200000005dd0 R15: 0000200000005c40
watchdog: BUG: soft lockup - CPU#1 stuck for 122s! [syz-executor380:329]
Modules linked in:
CPU: 1 PID: 329 Comm: syz-executor380 Not tainted 5.10.240-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025
RIP: 0010:check_kcov_mode kernel/kcov.c:174 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x60 kernel/kcov.c:197
Code: 00 cd 9e 7e 65 8b 15 05 cd 9e 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 dc 0a 00 00 00 74 2c 8b 91 b8 0a 00 00 <83> fa 02 75 21 48 8b 91 c0 0a 00 00 48 8b 32 48 8d 7e 01 8b 89 bc
RSP: 0018:ffffc90000c669b0 EFLAGS: 00000246
RAX: ffffffff845cff9a RBX: ffffc90000c66de0 RCX: ffff88811de8bb40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000c669b0 R08: dffffc0000000000 R09: ffffed1023bc1a92
R10: ffffed1023bc1a92 R11: 1ffff11023bc1a91 R12: dffffc0000000000
R13: ffff88811de0d400 R14: 0000000000000000 R15: 00000000caf9a767
FS:  00007fa03482e6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000003000 CR3: 00000001083fa000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 tipc_sk_rcv+0x1caa/0x1ef0 net/tipc/socket.c:2492
 tipc_node_xmit+0x256/0xcd0 net/tipc/node.c:1674
 tipc_node_xmit_skb+0xe9/0x130 net/tipc/node.c:1739
 tipc_sk_rcv+0x1d77/0x1ef0 net/tipc/socket.c:2518
 tipc_node_xmit+0x256/0xcd0 net/tipc/node.c:1674
 tipc_sk_push_backlog net/tipc/socket.c:1306 [inline]
 tipc_sk_filter_connect net/tipc/socket.c:2253 [inline]
 tipc_sk_filter_rcv+0x1581/0x3850 net/tipc/socket.c:2362
 tipc_sk_enqueue net/tipc/socket.c:2442 [inline]
 tipc_sk_rcv+0x7cc/0x1ef0 net/tipc/socket.c:2493
 tipc_node_xmit+0x256/0xcd0 net/tipc/node.c:1674
 tipc_node_xmit_skb net/tipc/node.c:1739 [inline]
 tipc_node_distr_xmit+0x292/0x390 net/tipc/node.c:1754
 tipc_sk_backlog_rcv+0x16f/0x1f0 net/tipc/socket.c:2410
 sk_backlog_rcv include/net/sock.h:1052 [inline]
 __release_sock+0x146/0x360 net/core/sock.c:2583
 release_sock+0x60/0x1b0 net/core/sock.c:3134
 tipc_release+0xbd4/0x1490 net/tipc/socket.c:639
 __sock_release net/socket.c:597 [inline]
 sock_close+0xe0/0x270 net/socket.c:1286
 __fput+0x2fb/0x770 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x127/0x190 kernel/task_work.c:189
 ptrace_notify+0x212/0x250 kernel/signal.c:2280
 ptrace_report_syscall include/linux/tracehook.h:66 [inline]
 tracehook_report_syscall_exit include/linux/tracehook.h:129 [inline]
 arch_syscall_exit_tracehook include/linux/entry-common.h:285 [inline]
 syscall_exit_work+0x6e/0x140 kernel/entry/common.c:239
 syscall_exit_to_user_mode_prepare kernel/entry/common.c:266 [inline]
 syscall_exit_to_user_mode+0x5b/0x90 kernel/entry/common.c:272
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fa03486d869
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa03482e218 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 00000000000203a0 RBX: 00007fa0348f9328 RCX: 00007fa03486d869
RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000003
RBP: 00007fa0348f9320 R08: 0000000000000000 R09: 0000000000000000
R10: 00002000000003c0 R11: 0000000000000246 R12: 00007fa0348c6084
R13: 0000200000001480 R14: 0000200000005dd0 R15: 0000200000005c40

Crashes (160):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/09/02 08:33 android13-5.10-lts 1154f779f3f3 807a3b61 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/09/02 04:17 android13-5.10-lts 1154f779f3f3 807a3b61 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/08/25 12:10 android13-5.10-lts 1154f779f3f3 bf27483f .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/07/08 20:45 android13-5.10-lts 59e9a7228857 4d9fdfa4 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/07/08 05:59 android13-5.10-lts 59e9a7228857 4f67c4ae .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/05/23 12:09 android13-5.10-lts 7e2543346ff7 fa44301a .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/05/10 06:53 android13-5.10-lts 7e2543346ff7 77908e5f .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/05/10 01:10 android13-5.10-lts 7e2543346ff7 77908e5f .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/04/13 20:36 android13-5.10-lts e0b88ee5f09c 0bd6db41 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/04/06 20:10 android13-5.10-lts 094fc3778d6b 1c65791e .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/01/22 08:35 android13-5.10-lts fbe98d68b6b3 da72ac06 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf BUG: soft lockup in sock_close
2025/01/16 23:36 android13-5.10-lts fbe98d68b6b3 f9e07a6e .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/12/25 18:03 android13-5.10-lts 4055d754db6f 444551c4 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/12/24 09:00 android13-5.10-lts 4055d754db6f 444551c4 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/12/24 04:20 android13-5.10-lts 4055d754db6f 444551c4 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/11/22 15:41 android13-5.10-lts b14940b90491 4b25d554 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/11/11 22:55 android13-5.10-lts 6a01908517df 0c4b1325 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/29 09:44 android13-5.10-lts 0890c03b8b7d ef3de9e8 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/05/20 17:39 android13-5.10-lts 70b6ab09a34b c0f1611a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/03/27 03:02 android13-5.10-lts e7daca75b4c3 454571b6 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf BUG: soft lockup in sock_close
2024/03/25 07:19 android13-5.10-lts e7daca75b4c3 0ea90952 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/11/21 21:05 android13-5.10-lts b14940b90491 4b25d554 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/09/09 16:30 android13-5.10-lts 48647f2c6800 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/09/09 04:56 android13-5.10-lts 48647f2c6800 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/08/27 16:20 android13-5.10-lts 1154f779f3f3 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/08/25 15:07 android13-5.10-lts 1154f779f3f3 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/08/25 02:38 android13-5.10-lts 1154f779f3f3 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/08/16 08:56 android13-5.10-lts 1154f779f3f3 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/08/10 12:11 android13-5.10-lts 1154f779f3f3 32a0e5ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/08/08 13:52 android13-5.10-lts 1154f779f3f3 6a893178 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/07/26 05:57 android13-5.10-lts ad9a98ef27a4 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/07/24 20:21 android13-5.10-lts ad9a98ef27a4 65d60d73 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/07/12 12:05 android13-5.10-lts 59e9a7228857 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf BUG: soft lockup in sock_close
2025/06/19 22:24 android13-5.10-lts d76d4cd0623a ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/05/23 06:47 android13-5.10-lts 7e2543346ff7 fa44301a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/05/09 19:28 android13-5.10-lts 7e2543346ff7 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/05/09 19:15 android13-5.10-lts 7e2543346ff7 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/05/03 01:56 android13-5.10-lts ab07aeb2c93d b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf BUG: soft lockup in sock_close
2025/04/29 14:25 android13-5.10-lts ab07aeb2c93d aeb6ec69 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/04/22 10:45 android13-5.10-lts ba8b8b193394 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/04/20 20:49 android13-5.10-lts ba8b8b193394 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/04/19 12:28 android13-5.10-lts ba8b8b193394 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/04/10 12:25 android13-5.10-lts e0b88ee5f09c 988b336c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/03/31 08:18 android13-5.10-lts 094fc3778d6b d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/03/25 14:39 android13-5.10-lts 094fc3778d6b 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/03/04 12:43 android13-5.10-lts 3f5f2283d684 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/03/04 11:29 android13-5.10-lts 3f5f2283d684 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/03/04 00:37 android13-5.10-lts 3f5f2283d684 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/02/26 19:57 android13-5.10-lts 3f5f2283d684 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/02/16 14:03 android13-5.10-lts 6686f2996d23 40a34ec9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/02/14 01:04 android13-5.10-lts 6686f2996d23 a98a8417 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/01/16 18:49 android13-5.10-lts fbe98d68b6b3 f9e07a6e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/01/16 07:51 android13-5.10-lts fbe98d68b6b3 968edaf4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2025/01/09 04:12 android13-5.10-lts 49e8ba0a684f f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/12/23 13:38 android13-5.10-lts 4055d754db6f b4fbdbd4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/11/14 00:49 android13-5.10-lts 6a01908517df bb3f8425 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/11/11 16:28 android13-5.10-lts 6a01908517df 0c4b1325 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/09/10 13:06 android13-5.10-lts 1c5354a314ea 784df80e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/29 12:34 android13-5.10-lts 0890c03b8b7d 9bd464fc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/28 19:21 android13-5.10-lts 0890c03b8b7d ef3de9e8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/28 17:56 android13-5.10-lts 0890c03b8b7d ef3de9e8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/28 16:54 android13-5.10-lts 0890c03b8b7d ef3de9e8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/28 13:30 android13-5.10-lts 0890c03b8b7d ef3de9e8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/20 10:53 android13-5.10-lts 0890c03b8b7d 9f0ab3fb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/17 00:34 android13-5.10-lts 0890c03b8b7d dbc93b08 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/17 00:30 android13-5.10-lts 0890c03b8b7d dbc93b08 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/15 03:22 android13-5.10-lts 0890c03b8b7d e4bacdaf .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/14 13:45 android13-5.10-lts 0890c03b8b7d e6b88e20 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/14 02:11 android13-5.10-lts 0890c03b8b7d bde81f6f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/13 09:42 android13-5.10-lts 0890c03b8b7d 7b0f4b46 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/08/12 17:03 android13-5.10-lts fd58936f3c1f 842184b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 BUG: soft lockup in sock_close
2024/03/21 13:17 android13-5.10-lts e7daca75b4c3 6753db5c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf BUG: soft lockup in sock_close
* Struck through repros no longer work on HEAD.