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INFO: rcu detected stall in sock_close (5)

Status: upstream: reported syz repro on 2025/07/16 17:01
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+9a29e1dba699b6f46a03@syzkaller.appspotmail.com
First crash: 501d, last: 8h25m
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [wireless?] INFO: rcu detected stall in sock_close (5) 0 (1) 2025/07/16 17:01
▶ ▼ Similar bugs (14)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 INFO: rcu detected stall in sock_close (2) 1 1 540d 540d 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 630d 668d 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 431d 431d 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 739d 739d 3/3 fixed on 2023/09/23 10:26
upstream INFO: rcu detected stall in sock_close cgroups mm 1 6 2052d 2053d 0/29 closed as invalid on 2019/12/04 14:04
linux-6.1 INFO: rcu detected stall in sock_close (2) 1 1 533d 533d 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 1340d 1835d 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 718d 772d 0/3 auto-obsoleted due to no activity on 2023/11/07 13:02
linux-5.15 INFO: rcu detected stall in sock_close (3) origin:upstream 1 C 9 23d 424d 0/3 upstream: reported C repro on 2024/05/20 00:06
upstream INFO: rcu detected stall in sock_close (2) cgroups mm 1 1 2017d 2017d 0/29 closed as invalid on 2020/01/09 08:13
android-5-10 BUG: soft lockup in sock_close 1 C 140 5d22h 480d 0/2 upstream: reported C repro on 2024/03/25 07:28
android-5-15 BUG: soft lockup in sock_close origin:downstream 1 C done 352 7d05h 478d 0/2 upstream: reported C repro on 2024/03/26 23:21
android-6-1 BUG: soft lockup in sock_close origin:downstream 1 C error 7 9d23h 478d 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 206d 206d 0/3 upstream: reported syz repro on 2024/12/23 18:51

Sample crash report:
watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.0.2011:11811]
Modules linked in:
irq event stamp: 337922703
hardirqs last  enabled at (337922702): [<ffffffff8185b0dd>] __local_bh_enable_ip+0x12d/0x1c0 kernel/softirq.c:412
hardirqs last disabled at (337922703): [<ffffffff8b6f3f4e>] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050
softirqs last  enabled at (584): [<ffffffff8b0f4de9>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (584): [<ffffffff8b0f4de9>] tipc_skb_peek_port net/tipc/msg.h:1235 [inline]
softirqs last  enabled at (584): [<ffffffff8b0f4de9>] tipc_sk_rcv+0x3e9/0x2ba0 net/tipc/socket.c:2489
softirqs last disabled at (586): [<ffffffff8b0f4e21>] spin_trylock_bh include/linux/spinlock.h:411 [inline]
softirqs last disabled at (586): [<ffffffff8b0f4e21>] tipc_sk_rcv+0x421/0x2ba0 net/tipc/socket.c:2494
CPU: 0 UID: 0 PID: 11811 Comm: syz.0.2011 Not tainted 6.16.0-rc5-syzkaller-00224-g379f604cc3dc #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:should_resched arch/x86/include/asm/preempt.h:104 [inline]
RIP: 0010:__local_bh_enable_ip+0x135/0x1c0 kernel/softirq.c:414
Code: 8b e8 6f b2 e9 09 65 66 8b 05 6f 9f 1a 11 66 85 c0 75 5a bf 01 00 00 00 e8 a8 32 0b 00 e8 b3 11 42 00 fb 65 8b 05 4b 9f 1a 11 <85> c0 75 05 e8 82 f5 ad ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00
RSP: 0018:ffffc9000e456540 EFLAGS: 00000286
RAX: 0000000000000201 RBX: 0000000000000201 RCX: 1216cf3644652a00
RDX: 0000000000000002 RSI: ffffffff8d998e51 RDI: ffffffff8be29e00
RBP: ffffc9000e4565d0 R08: ffffffff8fa1f5f7 R09: 1ffffffff1f43ebe
R10: dffffc0000000000 R11: fffffbfff1f43ebf R12: ffffffff8b0f4de9
R13: dffffc0000000000 R14: dffffc0000000000 R15: 1ffff92001c8aca8
FS:  00007fa71c0906c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000009000 CR3: 0000000043757000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 spin_unlock_bh include/linux/spinlock.h:396 [inline]
 tipc_skb_peek_port net/tipc/msg.h:1235 [inline]
 tipc_sk_rcv+0x3e9/0x2ba0 net/tipc/socket.c:2489
 tipc_node_xmit+0x1c9/0xe90 net/tipc/node.c:1701
 tipc_node_xmit_skb+0xf4/0x150 net/tipc/node.c:1766
 tipc_sk_rcv+0x29c4/0x2ba0 net/tipc/socket.c:2520
 tipc_node_xmit+0x1c9/0xe90 net/tipc/node.c:1701
 tipc_sk_push_backlog net/tipc/socket.c:1312 [inline]
 tipc_sk_filter_connect net/tipc/socket.c:2253 [inline]
 tipc_sk_filter_rcv+0x12a0/0x30b0 net/tipc/socket.c:2362
 tipc_sk_enqueue net/tipc/socket.c:2443 [inline]
 tipc_sk_rcv+0x8a5/0x2ba0 net/tipc/socket.c:2495
 tipc_node_xmit+0x1c9/0xe90 net/tipc/node.c:1701
 tipc_node_xmit_skb net/tipc/node.c:1766 [inline]
 tipc_node_distr_xmit+0x2a0/0x3b0 net/tipc/node.c:1781
 tipc_sk_backlog_rcv+0x1a1/0x230 net/tipc/socket.c:2410
 sk_backlog_rcv include/net/sock.h:1148 [inline]
 __release_sock+0x249/0x350 net/core/sock.c:3213
 release_sock+0x5f/0x1f0 net/core/sock.c:3767
 tipc_release+0x16e2/0x2160 net/tipc/socket.c:650
 __sock_release net/socket.c:647 [inline]
 sock_close+0xc3/0x240 net/socket.c:1391
 __fput+0x449/0xa70 fs/file_table.c:465
 task_work_run+0x1d1/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:114
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa71b18e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa71c090038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 00000000000203a0 RBX: 00007fa71b3b5fa0 RCX: 00007fa71b18e929
RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000003
RBP: 00007fa71b210b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa71b3b5fa0 R15: 00007fffdf037f88
 </TASK>

Crashes (31):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/12 16:53 upstream 379f604cc3dc 3cda49cf .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root BUG: soft lockup in sock_close
2025/07/18 02:28 upstream e2291551827f 0d1223f1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sock_close
2025/06/20 08:28 upstream 75f5f23f8787 ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sock_close
2025/06/04 04:40 upstream 5abc7438f1e9 a30356b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sock_close
2025/04/14 05:26 upstream 8ffd015db85f 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sock_close
2025/03/20 03:08 upstream a7f2e10ecd8f 3b7445cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sock_close
2025/01/19 06:44 upstream fda5e3f28400 f2cb035c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sock_close
2025/01/13 16:58 upstream 5bc55a333a2f 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sock_close
2025/01/11 14:54 upstream e0daef7de1ac 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sock_close
2025/01/11 05:50 upstream 77a903cd8e5a 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sock_close
2024/12/14 03:55 upstream f932fb9b4074 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sock_close
2024/12/11 07:35 upstream f92f4749861b cfc402b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sock_close
2024/11/18 21:27 upstream adc218676eef 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sock_close
2024/10/24 17:17 upstream c2ee9f594da8 9fc8fe02 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sock_close
2024/07/20 23:09 upstream 3c3ff7be9729 b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sock_close
2024/07/20 19:32 upstream 3c3ff7be9729 b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sock_close
2024/07/14 16:23 upstream 4d145e3f830b eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sock_close
2024/06/18 19:29 upstream 2ccbdf43d5e7 639d6cdf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sock_close
2024/05/27 11:11 upstream 1613e604df0c a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sock_close
2024/12/23 06:07 net 30b981796b94 b4fbdbd4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sock_close
2024/12/05 19:32 net 31f1b55d5d7e 6e50d07b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sock_close
2024/10/06 06:16 net 9234a2549cb6 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sock_close
2024/10/12 06:38 net-next d677aebd663d 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sock_close
2024/05/03 00:49 net-next dcc61472534e ddfc15a1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sock_close
2024/03/14 17:58 net-next 9187210eee7d d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sock_close
2024/03/04 02:46 net-next 4b2765ae410a 25905f5d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sock_close
2024/12/10 10:18 linux-next af2ea8ab7a54 cfc402b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sock_close
2024/06/12 16:29 linux-next a957267fa7e9 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sock_close
2024/06/04 05:49 linux-next d97496ca23a2 a1feae05 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sock_close
2024/12/24 20:11 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in sock_close
2024/05/14 11:22 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in sock_close
* Struck through repros no longer work on HEAD.