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INFO: task hung in do_con_write (5)

Status: closed as invalid on 2025/05/05 18:47
Subsystems: kernel
[Documentation on labels]
First crash: 266d, last: 173d
▶ ▼ Similar bugs (6)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in do_con_write serial 1 4 1845d 2013d 0/29 auto-closed as invalid on 2020/10/06 18:58
linux-4.14 INFO: task hung in do_con_write 1 9 1826d 2042d 0/1 auto-closed as invalid on 2020/11/25 15:01
upstream INFO: task hung in do_con_write (2) serial 1 2 1401d 1411d 0/29 auto-closed as invalid on 2021/12/25 05:43
upstream INFO: task hung in do_con_write (4) serial 1 1 601d 598d 0/29 auto-obsoleted due to no activity on 2024/03/04 00:42
upstream INFO: task hung in do_con_write (3) serial 1 1 1066d 1066d 0/29 auto-obsoleted due to no activity on 2022/11/25 16:33
linux-4.19 INFO: task hung in do_con_write 1 3 1826d 1883d 0/1 auto-closed as invalid on 2020/11/25 06:45

Sample crash report:
INFO: task kworker/u8:5:3515 blocked for more than 143 seconds.
      Not tainted 6.14.0-rc1-syzkaller-00020-g0de63bb7d919 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:5    state:D stack:19352 pid:3515  tgid:3515  ppid:2      task_flags:0x4208160 flags:0x00004000
Workqueue: events_unbound flush_to_ldisc
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6856
 schedule_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75
 ___down_common kernel/locking/semaphore.c:225 [inline]
 __down_common+0x375/0x820 kernel/locking/semaphore.c:246
 down+0x84/0xc0 kernel/locking/semaphore.c:63
 console_lock+0x145/0x1b0 kernel/printk/printk.c:2833
 do_con_write+0x154/0x4c30 drivers/tty/vt/vt.c:3056
 con_put_char+0x95/0xf0 drivers/tty/vt/vt.c:3440
 tty_put_char+0xe3/0x190 drivers/tty/tty_io.c:3166
 do_output_char+0x6b1/0x970 drivers/tty/n_tty.c:469
 __process_echoes+0x2dc/0x9f0 drivers/tty/n_tty.c:717
 flush_echoes drivers/tty/n_tty.c:807 [inline]
 __receive_buf drivers/tty/n_tty.c:1642 [inline]
 n_tty_receive_buf_common+0xc08/0x12e0 drivers/tty/n_tty.c:1739
 tty_port_default_receive_buf+0x6d/0xa0 drivers/tty/tty_port.c:37
 receive_buf drivers/tty/tty_buffer.c:445 [inline]
 flush_to_ldisc+0x328/0x860 drivers/tty/tty_buffer.c:495
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317
 worker_thread+0x870/0xd30 kernel/workqueue.c:3398
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
INFO: task kworker/1:5:6060 blocked for more than 143 seconds.
      Not tainted 6.14.0-rc1-syzkaller-00020-g0de63bb7d919 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:5     state:D stack:18904 pid:6060  tgid:6060  ppid:2      task_flags:0x4208160 flags:0x00004000
Workqueue: events console_callback
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6856
 schedule_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75
 ___down_common kernel/locking/semaphore.c:225 [inline]
 __down_common+0x375/0x820 kernel/locking/semaphore.c:246
 down+0x84/0xc0 kernel/locking/semaphore.c:63
 console_lock+0x145/0x1b0 kernel/printk/printk.c:2833
 console_callback+0x68/0x460 drivers/tty/vt/vt.c:3120
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317
 worker_thread+0x870/0xd30 kernel/workqueue.c:3398
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
INFO: task kworker/1:1:912 blocked for more than 143 seconds.
      Not tainted 6.14.0-rc1-syzkaller-00020-g0de63bb7d919 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1     state:D stack:19184 pid:912   tgid:912   ppid:2      task_flags:0x4208160 flags:0x00004000
Workqueue: events vc_SAK
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6856
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6913
 __mutex_lock_common kernel/locking/mutex.c:662 [inline]
 __mutex_lock+0x817/0x1010 kernel/locking/mutex.c:730
 tty_buffer_flush+0x79/0x3f0 drivers/tty/tty_buffer.c:229
 tty_ldisc_flush+0x6a/0xc0 drivers/tty/tty_ldisc.c:388
 __do_SAK+0x27d/0x700 drivers/tty/tty_io.c:3037
 vc_SAK+0x77/0x210 drivers/tty/vt/vt_ioctl.c:993
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317
 worker_thread+0x870/0xd30 kernel/workqueue.c:3398
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
INFO: task S50sshd:23621 blocked for more than 143 seconds.
      Not tainted 6.14.0-rc1-syzkaller-00020-g0de63bb7d919 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:S50sshd         state:D stack:23664 pid:23621 tgid:23621 ppid:23611  task_flags:0x400000 flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6856
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6913
 __mutex_lock_common kernel/locking/mutex.c:662 [inline]
 __mutex_lock+0x817/0x1010 kernel/locking/mutex.c:730
 process_echoes drivers/tty/n_tty.c:787 [inline]
 n_tty_write+0x313/0x1230 drivers/tty/n_tty.c:2375
 iterate_tty_write drivers/tty/tty_io.c:1015 [inline]
 file_tty_write+0x546/0x9b0 drivers/tty/tty_io.c:1090
 redirected_tty_write+0xc9/0x110 drivers/tty/tty_io.c:1130
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:679
 ksys_write+0x18f/0x2b0 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f547ca00bf2
RSP: 002b:00007ffd9bcdda98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f547cadc5a0 RCX: 00007f547ca00bf2
RDX: 000000000000000f RSI: 000055e3f0975380 RDI: 0000000000000001
RBP: 000000000000000f R08: 00007f547cadc5a0 R09: 0000000000000000
R10: 000000000000010f R11: 0000000000000246 R12: 000000000000000f
R13: 000055e3f0975380 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
INFO: task syz.7.23217:23641 blocked for more than 143 seconds.
      Not tainted 6.14.0-rc1-syzkaller-00020-g0de63bb7d919 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.23217     state:D stack:27344 pid:23641 tgid:23640 ppid:19654  task_flags:0x400040 flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6856
 schedule_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75
 ___down_common kernel/locking/semaphore.c:225 [inline]
 __down_common+0x375/0x820 kernel/locking/semaphore.c:246
 down+0x84/0xc0 kernel/locking/semaphore.c:63
 console_lock+0x145/0x1b0 kernel/printk/printk.c:2833
 con_install+0x99/0x7f0 drivers/tty/vt/vt.c:3515
 tty_driver_install_tty drivers/tty/tty_io.c:1304 [inline]
 tty_init_dev+0xc1/0x4c0 drivers/tty/tty_io.c:1416
 tty_open_by_driver drivers/tty/tty_io.c:2082 [inline]
 tty_open+0x9d9/0xde0 drivers/tty/tty_io.c:2129
 chrdev_open+0x521/0x600 fs/char_dev.c:414
 do_dentry_open+0xdec/0x1960 fs/open.c:955
 vfs_open+0x3b/0x370 fs/open.c:1085
 do_open fs/namei.c:3830 [inline]
 path_openat+0x2c81/0x3590 fs/namei.c:3989
 do_filp_open+0x27f/0x4e0 fs/namei.c:4016
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1427
 do_sys_open fs/open.c:1442 [inline]
 __do_sys_openat fs/open.c:1458 [inline]
 __se_sys_openat fs/open.c:1453 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1453
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa1dfb8b710
RSP: 002b:00007fa1e0991b70 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa1dfb8b710
RDX: 0000000000000002 RSI: 00007fa1e0991c10 RDI: 00000000ffffff9c
RBP: 00007fa1e0991c10 R08: 0000000000000000 R09: 00007fa1e0991987
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fa1dfda5fa0 R15: 00007ffea06f3618
 </TASK>
INFO: task syz.8.23258:23729 blocked for more than 143 seconds.
      Not tainted 6.14.0-rc1-syzkaller-00020-g0de63bb7d919 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.23258     state:D stack:27440 pid:23729 tgid:23728 ppid:22539  task_flags:0x400040 flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6856
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6913
 __mutex_lock_common kernel/locking/mutex.c:662 [inline]
 __mutex_lock+0x817/0x1010 kernel/locking/mutex.c:730
 t_start+0x1b/0x50 fs/proc/proc_tty.c:106
 seq_read_iter+0x3cc/0xd70 fs/seq_file.c:225
 proc_reg_read_iter+0x1c2/0x290 fs/proc/inode.c:299
 new_sync_read fs/read_write.c:484 [inline]
 vfs_read+0x975/0xb40 fs/read_write.c:565
 ksys_read+0x18f/0x2b0 fs/read_write.c:708
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa710f8cda9
RSP: 002b:00007fa711dda038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fa7111a5fa0 RCX: 00007fa710f8cda9
RDX: 0000000000000008 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 00007fa71100e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa7111a5fa0 R15: 00007ffcf5ae68e8
 </TASK>
INFO: task syz.4.23266:23748 blocked for more than 143 seconds.
      Not tainted 6.14.0-rc1-syzkaller-00020-g0de63bb7d919 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.23266     state:D stack:27440 pid:23748 tgid:23747 ppid:14180  task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6856
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6913
 __mutex_lock_common kernel/locking/mutex.c:662 [inline]
 __mutex_lock+0x817/0x1010 kernel/locking/mutex.c:730
 tty_open_by_driver drivers/tty/tty_io.c:2046 [inline]
 tty_open+0x232/0xde0 drivers/tty/tty_io.c:2129
 chrdev_open+0x521/0x600 fs/char_dev.c:414
 do_dentry_open+0xdec/0x1960 fs/open.c:955
 vfs_open+0x3b/0x370 fs/open.c:1085
 do_open fs/namei.c:3830 [inline]
 path_openat+0x2c81/0x3590 fs/namei.c:3989
 do_filp_open+0x27f/0x4e0 fs/namei.c:4016
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1427
 do_sys_open fs/open.c:1442 [inline]
 __do_sys_openat fs/open.c:1458 [inline]
 __se_sys_openat fs/open.c:1453 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1453
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1d60f8cda9
RSP: 002b:00007f1d61d02038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f1d611a5fa0 RCX: 00007f1d60f8cda9
RDX: 0000000000103902 RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 00007f1d6100e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f1d611a5fa0 R15: 00007ffc03bfdcd8
 </TASK>
INFO: task syz.0.23303:23828 blocked for more than 143 seconds.
      Not tainted 6.14.0-rc1-syzkaller-00020-g0de63bb7d919 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.23303     state:D stack:26544 pid:23828 tgid:23827 ppid:5946   task_flags:0x400040 flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6856
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6913
 __mutex_lock_common kernel/locking/mutex.c:662 [inline]
 __mutex_lock+0x817/0x1010 kernel/locking/mutex.c:730
 tty_open_by_driver drivers/tty/tty_io.c:2046 [inline]
 tty_open+0x232/0xde0 drivers/tty/tty_io.c:2129
 chrdev_open+0x521/0x600 fs/char_dev.c:414
 do_dentry_open+0xdec/0x1960 fs/open.c:955
 vfs_open+0x3b/0x370 fs/open.c:1085
 do_open fs/namei.c:3830 [inline]
 path_openat+0x2c81/0x3590 fs/namei.c:3989
 do_filp_open+0x27f/0x4e0 fs/namei.c:4016
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1427
 do_sys_open fs/open.c:1442 [inline]
 __do_sys_openat fs/open.c:1458 [inline]
 __se_sys_openat fs/open.c:1453 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1453
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f86eb18cda9
RSP: 002b:00007f86e8ff6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f86eb3a5fa0 RCX: 00007f86eb18cda9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 00007f86eb20e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f86eb3a5fa0 R15: 00007ffdfc91d188
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.14.0-rc1-syzkaller-00020-g0de63bb7d919 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 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:162 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:236 [inline]
 watchdog+0x1058/0x10a0 kernel/hung_task.c:399
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 27167 Comm: syz.9.24553 Not tainted 6.14.0-rc1-syzkaller-00020-g0de63bb7d919 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:trace_lock_release include/trace/events/lock.h:69 [inline]
RIP: 0010:lock_release+0xb8/0xa30 kernel/locking/lockdep.c:5862
Code: 08 0f 83 fe 05 00 00 89 c3 48 89 d8 48 c1 e8 06 48 8d 3c c5 70 27 1a 90 be 08 00 00 00 e8 00 91 88 00 48 0f a3 1d 08 47 7f 0e <73> 16 e8 11 3a 0a 00 84 c0 75 0d 80 3d 88 62 69 0e 00 0f 84 fc 05
RSP: 0018:ffffc90003487320 EFLAGS: 00000257
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff819ae060
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901a2770
RBP: ffffc90003487458 R08: ffffffff901a2777 R09: 1ffffffff20344ee
R10: dffffc0000000000 R11: fffffbfff20344ef R12: 1ffff92000690e70
R13: ffffffff822f1d36 R14: ffffffff822f1d36 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb71367a0cd CR3: 00000000347a2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 rcu_lock_release include/linux/rcupdate.h:347 [inline]
 rcu_read_unlock_sched include/linux/rcupdate.h:962 [inline]
 pfn_valid+0x3eb/0x450 include/linux/mmzone.h:2077
 page_table_check_clear+0x1e/0x550 mm/page_table_check.c:70
 get_and_clear_full_ptes include/linux/pgtable.h:712 [inline]
 zap_present_folio_ptes mm/memory.c:1511 [inline]
 zap_present_ptes mm/memory.c:1596 [inline]
 do_zap_pte_range mm/memory.c:1698 [inline]
 zap_pte_range mm/memory.c:1740 [inline]
 zap_pmd_range mm/memory.c:1823 [inline]
 zap_pud_range mm/memory.c:1852 [inline]
 zap_p4d_range mm/memory.c:1873 [inline]
 unmap_page_range+0x376d/0x48d0 mm/memory.c:1894
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1984
 exit_mmap+0x283/0xd40 mm/mmap.c:1284
 __mmput+0x115/0x410 kernel/fork.c:1356
 exit_mm+0x220/0x310 kernel/exit.c:570
 do_exit+0x9ad/0x28e0 kernel/exit.c:925
 do_group_exit+0x207/0x2c0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096
 x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fabc898cda9
Code: Unable to access opcode bytes at 0x7fabc898cd7f.
RSP: 002b:00007ffcf36238b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fabc898cda9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffcf362391c R08: 00007ffcf36239af R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000028
R13: 00000000000927c0 R14: 0000000000161dba R15: 00007ffcf3623970
 </TASK>

Crashes (14):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/04 18:29 upstream 0de63bb7d919 4baca3d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in do_con_write
2025/02/04 05:48 upstream 0de63bb7d919 8f267cef .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in do_con_write
2025/02/01 06:31 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in do_con_write
2025/01/31 13:27 upstream 69e858e0b8b2 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in do_con_write
2025/01/28 11:26 upstream 9c5968db9e62 18070896 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in do_con_write
2025/01/17 22:19 upstream 9bffa1ad25b8 953d1c45 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in do_con_write
2025/01/17 07:31 upstream ce69b4019001 f9e07a6e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in do_con_write
2025/01/15 06:00 upstream c3812b15000c 7315a7cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in do_con_write
2025/01/12 18:14 upstream b62cef9a5c67 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in do_con_write
2025/01/04 15:40 upstream 63676eefb7a0 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in do_con_write
2025/01/04 10:24 upstream 63676eefb7a0 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in do_con_write
2024/11/16 01:18 upstream f868cd251776 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in do_con_write
2024/11/06 05:24 upstream 2e1b3cc9d7f7 3a465482 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in do_con_write
2024/11/03 17:46 upstream 3e5e6c9900c3 f00eed24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in do_con_write
* Struck through repros no longer work on HEAD.