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INFO: task syz-executor.2:10563 blocked for more than 143 seconds. Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29480 pid:10563 tgid:10559 ppid:5103 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf12/0x5c00 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x270 kernel/sched/core.c:6817 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6874 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b9/0x9d0 kernel/locking/mutex.c:752 tty_release_struct+0xad/0xe0 drivers/tty/tty_io.c:1702 tty_release+0xe2c/0x1420 drivers/tty/tty_io.c:1863 __fput+0x270/0xb70 fs/file_table.c:376 task_work_run+0x14d/0x240 kernel/task_work.c:180 get_signal+0x106f/0x2790 kernel/signal.c:2669 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:105 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline] syscall_exit_to_user_mode+0x156/0x2b0 kernel/entry/common.c:212 do_syscall_64+0xe0/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fef4487cda9 RSP: 002b:00007fef455270c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: 0000000000003e00 RBX: 00007fef449ac050 RCX: 00007fef4487cda9 RDX: 000000000000ff2e RSI: 0000000020000180 RDI: 0000000000000003 RBP: 00007fef448c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fef449ac050 R15: 00007fef44acfa48 </TASK> INFO: task syz-executor.5:10587 blocked for more than 143 seconds. Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:29040 pid:10587 tgid:10585 ppid:5107 flags:0x00000006 Call Trace: <TASK> context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf12/0x5c00 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe9/0x270 kernel/sched/core.c:6817 schedule_timeout+0x257/0x290 kernel/time/timer.c:2159 ___down_common kernel/locking/semaphore.c:225 [inline] __down_common+0x327/0x6d0 kernel/locking/semaphore.c:246 down+0x74/0xa0 kernel/locking/semaphore.c:63 console_lock+0x96/0x150 kernel/printk/printk.c:2640 con_install+0x9a/0x600 drivers/tty/vt/vt.c:3337 tty_driver_install_tty drivers/tty/tty_io.c:1306 [inline] tty_init_dev.part.0+0x99/0x660 drivers/tty/tty_io.c:1418 tty_init_dev include/linux/err.h:61 [inline] tty_open_by_driver drivers/tty/tty_io.c:2084 [inline] tty_open+0xb23/0x1010 drivers/tty/tty_io.c:2131 chrdev_open+0x26d/0x6e0 fs/char_dev.c:414 do_dentry_open+0x8d6/0x18c0 fs/open.c:953 do_open fs/namei.c:3641 [inline] path_openat+0x1df6/0x2990 fs/namei.c:3798 do_filp_open+0x1de/0x430 fs/namei.c:3825 do_sys_openat2+0x176/0x1e0 fs/open.c:1404 do_sys_open fs/open.c:1419 [inline] __do_sys_openat fs/open.c:1435 [inline] __se_sys_openat fs/open.c:1430 [inline] __x64_sys_openat+0x175/0x210 fs/open.c:1430 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fd84f67b9a0 RSP: 002b:00007fd8503fdc00 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd84f67b9a0 RDX: 0000000000000002 RSI: 00007fd8503fdca0 RDI: 00000000ffffff9c RBP: 00007fd8503fdca0 R08: 0000000000000000 R09: 00007fd8503fda17 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 000000000000006e R14: 00007fd84f7ac050 R15: 00007fd84f8cfa48 </TASK> INFO: lockdep is turned off. NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x299/0x300 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+0xf87/0x1210 kernel/hung_task.c:379 kthread+0x2c6/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 </TASK> Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 11495 Comm: syz-executor.3 Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x20 kernel/kcov.c:304 Code: 00 00 f3 0f 1e fa 48 8b 0c 24 0f b7 d6 0f b7 f7 bf 03 00 00 00 e9 c8 fe ff ff 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 8b 0c 24 <89> f2 89 fe bf 05 00 00 00 e9 aa fe ff ff 66 2e 0f 1f 84 00 00 00 RSP: 0018:ffffc90005087cc0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888013176000 RCX: ffffffff845d70eb RDX: ffff88801d273b80 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: ffff88801d273b80 R12: 0000000000000000 R13: ffff8880131764e8 R14: ffff888013176290 R15: ffff888013176000 FS: 00007f720a9b66c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005595eb1186a8 CR3: 000000001b2ad000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <TASK> io_lockdep_assert_cq_locked+0x20b/0x330 io_uring/io_uring.h:94 io_get_cqe_overflow io_uring/io_uring.h:129 [inline] __io_cqring_overflow_flush+0x35b/0x570 io_uring/io_uring.c:697 io_cqring_do_overflow_flush io_uring/io_uring.c:718 [inline] io_cqring_wait io_uring/io_uring.c:2643 [inline] __do_sys_io_uring_enter+0x1e48/0x2450 io_uring/io_uring.c:3674 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f7209c7cda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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:00007f720a9b60c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 00007f7209dabf80 RCX: 00007f7209c7cda9 RDX: 0000000000000004 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f7209cc947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f7209dabf80 R15: 00007f7209ecfa48 </TASK>
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/01/14 21:29 | upstream | 052d534373b7 | 551587c1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: task hung in tty_release_struct |