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INFO: task hung in genl_rcv_msg (3)

Status: closed as invalid on 2024/04/16 10:15
Subsystems: net
[Documentation on labels]
First crash: 172d, last: 29d
▶ ▼ Similar bugs (7)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in genl_rcv_msg (2) net 2 298d 332d 0/26 auto-obsoleted due to no activity on 2023/10/06 17:32
linux-4.19 INFO: task hung in genl_rcv_msg syz error 17 450d 1826d 0/1 upstream: reported syz repro on 2019/05/02 15:34
upstream INFO: task hung in genl_rcv_msg syz done error 648 478d 2026d 0/26 auto-obsoleted due to no activity on 2023/05/10 03:30
linux-4.14 INFO: task hung in genl_rcv_msg (2) 6 1261d 1450d 0/1 auto-closed as invalid on 2021/03/17 23:44
linux-6.1 INFO: task hung in genl_rcv_msg 1 137d 137d 0/3 auto-obsoleted due to no activity on 2024/03/26 09:02
linux-4.14 INFO: task hung in genl_rcv_msg syz done 2 1566d 1566d 1/1 fixed on 2020/02/16 23:53
linux-5.15 INFO: task hung in genl_rcv_msg 1 274d 274d 0/3 auto-obsoleted due to no activity on 2023/11/09 20:26
▶ ▼ Last patch testing requests (4)
Created Duration User Patch Repo Result
2024/04/09 15:27 2h00m edumazet@google.com upstream error OK
2024/02/06 15:37 34m retest repro upstream report log
2024/01/04 15:20 20m retest repro net-next report log
2023/11/28 05:00 18m retest repro upstream report log
▶ ▼ Cause bisection attempts (3)
Created Duration User Patch Repo Result
2024/03/01 09:04 9h09m bisect upstream job log (1) log
marked invalid by edumazet@google.com
2023/12/14 11:03 8h04m bisect upstream job log (1) log
marked invalid by edumazet@google.com
2023/11/13 17:38 11h07m bisect net-next job log (1) log
marked invalid by edumazet@google.com

Sample crash report:
INFO: task syz-executor188:5090 blocked for more than 143 seconds.
      Not tainted 6.8.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor188 state:D stack:22576 pid:5090  tgid:5085  ppid:5068   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6817
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
 genl_lock net/netlink/genetlink.c:33 [inline]
 genl_op_lock net/netlink/genetlink.c:58 [inline]
 genl_rcv_msg+0x121/0xe50 net/netlink/genetlink.c:1207
 netlink_rcv_skb+0x1e5/0x430 net/netlink/af_netlink.c:2543
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217
 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
 netlink_unicast+0x7ec/0x980 net/netlink/af_netlink.c:1367
 netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x223/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
 ___sys_sendmsg net/socket.c:2638 [inline]
 __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f14d5142339
RSP: 002b:00007f14d5102228 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000000002a RCX: 00007f14d5142339
RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000004
RBP: 00007f14d51cb348 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f14d51cb340
R13: 00007f14d5198064 R14: 00007ffea1d75220 R15: 00007ffea1d75308
 </TASK>
INFO: task syz-executor188:5093 blocked for more than 143 seconds.
      Not tainted 6.8.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor188 state:D stack:22672 pid:5093  tgid:5084  ppid:5067   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6817
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
 genl_lock net/netlink/genetlink.c:33 [inline]
 genl_op_lock net/netlink/genetlink.c:58 [inline]
 genl_rcv_msg+0x121/0xe50 net/netlink/genetlink.c:1207
 netlink_rcv_skb+0x1e5/0x430 net/netlink/af_netlink.c:2543
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217
 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
 netlink_unicast+0x7ec/0x980 net/netlink/af_netlink.c:1367
 netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x223/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
 ___sys_sendmsg net/socket.c:2638 [inline]
 __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f14d5142339
RSP: 002b:00007f14d5102228 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000000002c RCX: 00007f14d5142339
RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000004
RBP: 00007f14d51cb348 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f14d51cb340
R13: 00007f14d5198064 R14: 00007ffea1d75220 R15: 00007ffea1d75308
 </TASK>
INFO: task syz-executor188:5094 blocked for more than 144 seconds.
      Not tainted 6.8.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor188 state:D stack:22576 pid:5094  tgid:5088  ppid:5073   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6817
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
 genl_lock net/netlink/genetlink.c:33 [inline]
 genl_op_lock net/netlink/genetlink.c:58 [inline]
 genl_rcv_msg+0x121/0xe50 net/netlink/genetlink.c:1207
 netlink_rcv_skb+0x1e5/0x430 net/netlink/af_netlink.c:2543
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217
 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
 netlink_unicast+0x7ec/0x980 net/netlink/af_netlink.c:1367
 netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x223/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
 ___sys_sendmsg net/socket.c:2638 [inline]
 __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f14d5142339
RSP: 002b:00007f14d5102228 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000000002e RCX: 00007f14d5142339
RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000004
RBP: 00007f14d51cb348 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f14d51cb340
R13: 00007f14d5198064 R14: 00007ffea1d75220 R15: 00007ffea1d75308
 </TASK>
INFO: task syz-executor188:5098 blocked for more than 144 seconds.
      Not tainted 6.8.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor188 state:D stack:27416 pid:5098  tgid:5096  ppid:5066   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6817
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
 genl_lock net/netlink/genetlink.c:33 [inline]
 genl_op_lock net/netlink/genetlink.c:58 [inline]
 genl_rcv_msg+0x121/0xe50 net/netlink/genetlink.c:1207
 netlink_rcv_skb+0x1e5/0x430 net/netlink/af_netlink.c:2543
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217
 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
 netlink_unicast+0x7ec/0x980 net/netlink/af_netlink.c:1367
 netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x223/0x270 net/socket.c:745
 __sys_sendto+0x3a4/0x4f0 net/socket.c:2191
 __do_sys_sendto net/socket.c:2203 [inline]
 __se_sys_sendto net/socket.c:2199 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2199
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f14d5143c8c
RSP: 002b:00007f14d5101150 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f14d5101214 RCX: 00007f14d5143c8c
RDX: 0000000000000020 RSI: 00007f14d5101200 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007f14d51011a4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f14d5101200
R13: 00007f14d5198064 R14: 00007ffea1d75220 R15: 00007ffea1d75308
 </TASK>
INFO: task syz-executor188:5099 blocked for more than 145 seconds.
      Not tainted 6.8.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor188 state:D stack:26640 pid:5099  tgid:5097  ppid:5075   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6817
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
 genl_lock net/netlink/genetlink.c:33 [inline]
 genl_op_lock net/netlink/genetlink.c:58 [inline]
 genl_rcv_msg+0x121/0xe50 net/netlink/genetlink.c:1207
 netlink_rcv_skb+0x1e5/0x430 net/netlink/af_netlink.c:2543
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217
 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
 netlink_unicast+0x7ec/0x980 net/netlink/af_netlink.c:1367
 netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x223/0x270 net/socket.c:745
 __sys_sendto+0x3a4/0x4f0 net/socket.c:2191
 __do_sys_sendto net/socket.c:2203 [inline]
 __se_sys_sendto net/socket.c:2199 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2199
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f14d5143c8c
RSP: 002b:00007f14d5101150 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f14d5101214 RCX: 00007f14d5143c8c
RDX: 0000000000000020 RSI: 00007f14d5101200 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007f14d51011a4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f14d5101200
R13: 00007f14d5198064 R14: 00007ffea1d75220 R15: 00007ffea1d75308
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/29:
 #0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
 #0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
 #0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4815:
 #0: ffff88802adae0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
2 locks held by syz-executor188/5090:
 #0: ffffffff8f3d96f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x121/0xe50 net/netlink/genetlink.c:1207
3 locks held by syz-executor188/5091:
2 locks held by syz-executor188/5093:
 #0: ffffffff8f3d96f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x121/0xe50 net/netlink/genetlink.c:1207
2 locks held by syz-executor188/5094:
 #0: ffffffff8f3d96f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x121/0xe50 net/netlink/genetlink.c:1207
2 locks held by syz-executor188/5098:
 #0: ffffffff8f3d96f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x121/0xe50 net/netlink/genetlink.c:1207
2 locks held by syz-executor188/5099:
 #0: ffffffff8f3d96f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
 #1: ffffffff8f3d95a8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x121/0xe50 net/netlink/genetlink.c:1207

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xfaf/0xff0 kernel/hung_task.c:379
 kthread+0x2f1/0x390 kernel/kthread.c:388
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5091 Comm: syz-executor188 Not tainted 6.8.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:42 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:235 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x8/0x90 kernel/kcov.c:311
Code: 0a 20 e9 8b bf de 09 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 <65> 48 8b 0d c0 4c 70 7e 65 8b 05 c1 4c 70 7e a9 00 01 ff 00 74 10
RSP: 0018:ffffc90004406898 EFLAGS: 00000246
RAX: ffffffff8b040591 RBX: 0000000000000001 RCX: ffff888029d30000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004406990 R08: ffffffff8b0405a6 R09: 1ffffffff2591a84
R10: dffffc0000000000 R11: fffffbfff2591a85 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88802b1e114a R15: ffff88802b1e114e
FS:  00007f14d51026c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005570e4257600 CR3: 000000002df32000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __rht_ptr include/linux/rhashtable.h:362 [inline]
 rht_ptr_rcu include/linux/rhashtable.h:376 [inline]
 __rhashtable_lookup include/linux/rhashtable.h:607 [inline]
 rhashtable_lookup include/linux/rhashtable.h:646 [inline]
 tipc_sk_lookup+0x376/0x940 net/tipc/socket.c:3004
 tipc_nl_publ_dump+0x2c6/0xde0 net/tipc/socket.c:3815
 __tipc_nl_compat_dumpit+0x4b9/0xbf0 net/tipc/netlink_compat.c:224
 tipc_nl_compat_publ_dump net/tipc/netlink_compat.c:1032 [inline]
 tipc_nl_compat_sk_dump+0x7b1/0x9a0 net/tipc/netlink_compat.c:1084
 __tipc_nl_compat_dumpit+0x60b/0xbf0 net/tipc/netlink_compat.c:235
 tipc_nl_compat_dumpit+0x4f4/0x740 net/tipc/netlink_compat.c:318
 tipc_nl_compat_recv+0xdaa/0x14c0 net/tipc/netlink_compat.c:1321
 genl_family_rcv_msg_doit net/netlink/genetlink.c:1113 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:1193 [inline]
 genl_rcv_msg+0xad8/0xe50 net/netlink/genetlink.c:1208
 netlink_rcv_skb+0x1e5/0x430 net/netlink/af_netlink.c:2543
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217
 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
 netlink_unicast+0x7ec/0x980 net/netlink/af_netlink.c:1367
 netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x223/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
 ___sys_sendmsg net/socket.c:2638 [inline]
 __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f14d5142339
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 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:00007f14d5102228 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000029 RCX: 00007f14d5142339
RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000004
RBP: 00007f14d51cb348 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f14d51cb340
R13: 00007f14d5198064 R14: 00007ffea1d75220 R15: 00007ffea1d75308
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 3.409 msecs

Crashes (13):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/02/27 03:01 upstream d206a76d7d27 edd6a5e9 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in genl_rcv_msg
2023/11/14 04:29 upstream b85ea95d0864 cb976f63 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in genl_rcv_msg
2023/11/12 04:50 net-next 89cdf9d55601 6d6dbf8a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in genl_rcv_msg
2024/02/08 04:16 upstream 547ab8fc4cb0 6404acf9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in genl_rcv_msg
2023/12/11 04:35 upstream a39b6ac3781d 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in genl_rcv_msg
2023/11/12 07:18 upstream 1b907d050735 6d6dbf8a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in genl_rcv_msg
2024/02/09 09:15 net 02d9009f4e8c 7f07e9b0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in genl_rcv_msg
2024/02/06 16:36 net 3871aa01e1a7 6404acf9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: task hung in genl_rcv_msg
2024/02/09 03:18 net-next b6b614558ed5 7f07e9b0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in genl_rcv_msg
2023/12/21 15:08 net-next bee9705c679d 4f9530a3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in genl_rcv_msg
2023/11/11 21:14 net-next 89cdf9d55601 6d6dbf8a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: task hung in genl_rcv_msg
2024/04/02 15:29 linux-next c0b832517f62 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in genl_rcv_msg
2024/03/09 17:51 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 707081b61156 6ee49f2e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in genl_rcv_msg
* Struck through repros no longer work on HEAD.