Warning: Permanently added '10.128.0.135' (ED25519) to the list of known hosts. 2025/09/18 23:49:38 parsed 1 programs [ 57.537324][ T29] kauditd_printk_skb: 25 callbacks suppressed [ 57.537328][ T29] audit: type=1400 audit(1758239378.578:99): avc: denied { unlink } for pid=1919 comm="syz-executor" name="swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 57.562048][ T1919] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 58.065738][ T29] audit: type=1401 audit(1758239379.098:100): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768" 2025/09/18 23:49:40 executed programs: 0 [ 60.068077][ T2647] modprobe (2647) used greatest stack depth: 11808 bytes left [ 60.789077][ T29] audit: type=1400 audit(1758239381.828:101): avc: denied { mounton } for pid=2916 comm="syz.3.17" path="/0/file0" dev="tmpfs" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=file permissive=1 [ 60.811211][ T29] audit: type=1400 audit(1758239381.828:102): avc: denied { mount } for pid=2916 comm="syz.3.17" name="/" dev="9p" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 60.832915][ T29] audit: type=1400 audit(1758239381.828:103): avc: denied { setattr } for pid=2916 comm="syz.3.17" name="/" dev="9p" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 [ 60.854546][ T29] audit: type=1400 audit(1758239381.828:104): avc: denied { write } for pid=2916 comm="syz.3.17" dev="9p" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 [ 60.874964][ T29] audit: type=1400 audit(1758239381.828:105): avc: denied { open } for pid=2916 comm="syz.3.17" path="/0/file0" dev="9p" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 2025/09/18 23:49:58 executed programs: 3 2025/09/18 23:50:14 executed programs: 4 2025/09/18 23:50:30 executed programs: 5 2025/09/18 23:50:46 executed programs: 6 2025/09/18 23:51:02 executed programs: 7 2025/09/18 23:51:19 executed programs: 8 2025/09/18 23:51:35 executed programs: 9 2025/09/18 23:51:51 executed programs: 10 2025/09/18 23:52:07 executed programs: 11 [ 218.667111][ T30] INFO: task kworker/u8:2:37 blocked for more than 143 seconds. [ 218.674784][ T30] Not tainted syzkaller #0 [ 218.679719][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 218.688379][ T30] task:kworker/u8:2 state:D stack:13360 pid:37 tgid:37 ppid:2 flags:0x00004000 [ 218.698521][ T30] Workqueue: events_unbound netfs_write_collection_worker [ 218.705625][ T30] Call Trace: [ 218.708913][ T30] [ 218.711826][ T30] __schedule+0x510/0xb30 [ 218.716131][ T30] schedule+0x25/0x110 [ 218.720178][ T30] bit_wait+0xc/0x60 [ 218.724039][ T30] __wait_on_bit+0x46/0x150 [ 218.728519][ T30] ? __pfx_bit_wait+0x10/0x10 [ 218.733184][ T30] out_of_line_wait_on_bit+0x92/0xb0 [ 218.738444][ T30] ? __pfx_wake_bit_function+0x10/0x10 [ 218.743894][ T30] netfs_write_collection_worker+0xd0b/0x16e0 [ 218.749975][ T30] ? lock_acquire+0xac/0x190 [ 218.754536][ T30] process_one_work+0x22f/0x6b0 [ 218.759390][ T30] worker_thread+0x1c2/0x360 [ 218.763955][ T30] ? __pfx_worker_thread+0x10/0x10 [ 218.769052][ T30] kthread+0xd6/0x100 [ 218.773015][ T30] ? __pfx_kthread+0x10/0x10 [ 218.777584][ T30] ret_from_fork+0x2c/0x50 [ 218.781998][ T30] ? __pfx_kthread+0x10/0x10 [ 218.786569][ T30] ret_from_fork_asm+0x1a/0x30 [ 218.791510][ T30] [ 218.794507][ T30] INFO: task syz.3.17:2918 blocked for more than 143 seconds. [ 218.801954][ T30] Not tainted syzkaller #0 [ 218.806851][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 218.815520][ T30] task:syz.3.17 state:D stack:14824 pid:2918 tgid:2916 ppid:2462 flags:0x00000004 [ 218.825645][ T30] Call Trace: [ 218.828920][ T30] [ 218.831815][ T30] __schedule+0x510/0xb30 [ 218.836100][ T30] schedule+0x25/0x110 [ 218.840143][ T30] schedule_preempt_disabled+0x13/0x30 [ 218.845574][ T30] rwsem_down_write_slowpath+0x2bb/0x700 [ 218.851193][ T30] ? do_raw_spin_unlock+0x52/0xc0 [ 218.856271][ T30] down_write+0x86/0x90 [ 218.860424][ T30] vfs_utimes+0x123/0x260 [ 218.864731][ T30] do_utimes+0xc9/0x130 [ 218.868890][ T30] __x64_sys_utime+0x81/0xb0 [ 218.873468][ T30] do_syscall_64+0x6d/0x170 [ 218.878228][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 218.884116][ T30] RIP: 0033:0x7f42e3c2eba9 [ 218.888557][ T30] RSP: 002b:00007f42e3a7e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000084 [ 218.896941][ T30] RAX: ffffffffffffffda RBX: 00007f42e3e76090 RCX: 00007f42e3c2eba9 [ 218.904989][ T30] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000000c0 [ 218.912992][ T30] RBP: 00007f42e3cb1e19 R08: 0000000000000000 R09: 0000000000000000 [ 218.920962][ T30] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 218.929008][ T30] R13: 00007f42e3e76128 R14: 00007f42e3e76090 R15: 00007ffc75987e88 [ 218.936942][ T30] [ 218.939978][ T30] [ 218.939978][ T30] Showing all locks held in the system: [ 218.947677][ T30] 2 locks held by kworker/u8:0/11: [ 218.952751][ T30] #0: ffff888100078948 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x442/0x6b0 [ 218.963719][ T30] #1: ffffc90000063e58 ((work_completion)(&rreq->work)){....}-{0:0}, at: process_one_work+0x1ec/0x6b0 [ 218.974808][ T30] 2 locks held by kworker/u8:1/13: [ 218.979929][ T30] #0: ffff888100078948 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x442/0x6b0 [ 218.990968][ T30] #1: ffffc90000073e58 ((work_completion)(&rreq->work)){....}-{0:0}, at: process_one_work+0x1ec/0x6b0 [ 219.002089][ T30] 1 lock held by khungtaskd/30: [ 219.006907][ T30] #0: ffffffff8277e700 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x36/0x120 [ 219.016830][ T30] 2 locks held by kworker/u8:2/37: [ 219.021927][ T30] #0: ffff888100078948 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x442/0x6b0 [ 219.032858][ T30] #1: ffffc9000013fe58 ((work_completion)(&rreq->work)){....}-{0:0}, at: process_one_work+0x1ec/0x6b0 [ 219.043884][ T30] 2 locks held by kworker/u8:3/67: [ 219.048967][ T30] #0: ffff888100078948 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x442/0x6b0 [ 219.059902][ T30] #1: ffffc9000019be58 ((work_completion)(&rreq->work)){....}-{0:0}, at: process_one_work+0x1ec/0x6b0 [ 219.071014][ T30] 2 locks held by kworker/u8:4/123: [ 219.076180][ T30] #0: ffff888100078948 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x442/0x6b0 [ 219.087217][ T30] #1: ffffc9000018be58 ((work_completion)(&rreq->work)){....}-{0:0}, at: process_one_work+0x1ec/0x6b0 [ 219.098346][ T30] 2 locks held by kworker/u8:5/651: [ 219.103519][ T30] #0: ffff888100078948 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x442/0x6b0 [ 219.114475][ T30] #1: ffffc9000150fe58 ((work_completion)(&rreq->work)){....}-{0:0}, at: process_one_work+0x1ec/0x6b0 [ 219.125518][ T30] 2 locks held by getty/843: [ 219.130118][ T30] #0: ffff8881062a10a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x23/0x60 [ 219.139829][ T30] #1: ffffc900001fb2f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x521/0x670 [ 219.149843][ T30] 2 locks held by syz.3.17/2917: [ 219.154840][ T30] #0: ffff888108ae03f8 (sb_writers#14){....}-{0:0}, at: do_pwritev+0x8d/0xc0 [ 219.163710][ T30] #1: ffff888113388148 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: netfs_start_io_direct+0x79/0xd0 [ 219.174734][ T30] 2 locks held by syz.3.17/2918: [ 219.179660][ T30] #0: ffff888108ae03f8 (sb_writers#14){....}-{0:0}, at: vfs_utimes+0x248/0x260 [ 219.188669][ T30] #1: ffff888113388148 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: vfs_utimes+0x123/0x260 [ 219.198888][ T30] 2 locks held by syz.4.18/3376: [ 219.203787][ T30] #0: ffff88810f6903f8 (sb_writers#14){....}-{0:0}, at: do_pwritev+0x8d/0xc0 [ 219.212710][ T30] #1: ffff888113388720 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: netfs_start_io_direct+0x79/0xd0 [ 219.223726][ T30] 2 locks held by syz.4.18/3378: [ 219.228635][ T30] #0: ffff88810f6903f8 (sb_writers#14){....}-{0:0}, at: vfs_utimes+0x248/0x260 [ 219.237658][ T30] #1: ffff888113388720 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: vfs_utimes+0x123/0x260 [ 219.247998][ T30] 2 locks held by syz.5.19/3836: [ 219.252901][ T30] #0: ffff88810d2d93f8 (sb_writers#14){....}-{0:0}, at: do_pwritev+0x8d/0xc0 [ 219.261799][ T30] #1: ffff888113320148 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: netfs_start_io_direct+0x79/0xd0 [ 219.272829][ T30] 2 locks held by syz.5.19/3838: [ 219.277756][ T30] #0: ffff88810d2d93f8 (sb_writers#14){....}-{0:0}, at: vfs_utimes+0x248/0x260 [ 219.286760][ T30] #1: ffff888113320148 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: vfs_utimes+0x123/0x260 [ 219.297019][ T30] 2 locks held by syz.6.20/4296: [ 219.301935][ T30] #0: ffff88810839a3f8 (sb_writers#14){....}-{0:0}, at: do_pwritev+0x8d/0xc0 [ 219.310768][ T30] #1: ffff888113388cf8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: netfs_start_io_direct+0x79/0xd0 [ 219.321791][ T30] 2 locks held by syz.6.20/4298: [ 219.326691][ T30] #0: ffff88810839a3f8 (sb_writers#14){....}-{0:0}, at: vfs_utimes+0x248/0x260 [ 219.335717][ T30] #1: ffff888113388cf8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: vfs_utimes+0x123/0x260 [ 219.346037][ T30] 2 locks held by kworker/u8:6/4299: [ 219.351315][ T30] #0: ffff888100078948 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x442/0x6b0 [ 219.362245][ T30] #1: ffffc9000389fe58 ((work_completion)(&rreq->work)){....}-{0:0}, at: process_one_work+0x1ec/0x6b0 [ 219.373253][ T30] 2 locks held by syz.7.21/4758: [ 219.378182][ T30] #0: ffff8881063cb3f8 (sb_writers#14){....}-{0:0}, at: do_pwritev+0x8d/0xc0 [ 219.387041][ T30] #1: ffff8881133892d0 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: netfs_start_io_direct+0x79/0xd0 [ 219.398062][ T30] 2 locks held by syz.7.21/4760: [ 219.402967][ T30] #0: ffff8881063cb3f8 (sb_writers#14){....}-{0:0}, at: vfs_utimes+0x248/0x260 [ 219.411982][ T30] #1: ffff8881133892d0 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: vfs_utimes+0x123/0x260 [ 219.422205][ T30] 2 locks held by syz.8.22/5218: [ 219.427113][ T30] #0: ffff8881063d73f8 (sb_writers#14){....}-{0:0}, at: do_pwritev+0x8d/0xc0 [ 219.435928][ T30] #1: ffff8881133898a8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: netfs_start_io_direct+0x79/0xd0 [ 219.446937][ T30] 2 locks held by syz.8.22/5220: [ 219.451846][ T30] #0: ffff8881063d73f8 (sb_writers#14){....}-{0:0}, at: vfs_utimes+0x248/0x260 [ 219.461292][ T30] #1: ffff8881133898a8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: vfs_utimes+0x123/0x260 [ 219.471511][ T30] 2 locks held by syz.9.23/5680: [ 219.476424][ T30] #0: ffff88810cf553f8 (sb_writers#14){....}-{0:0}, at: do_pwritev+0x8d/0xc0 [ 219.485253][ T30] #1: ffff888113389e80 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: netfs_start_io_direct+0x79/0xd0 [ 219.496265][ T30] 2 locks held by syz.9.23/5682: [ 219.501203][ T30] #0: ffff88810cf553f8 (sb_writers#14){....}-{0:0}, at: vfs_utimes+0x248/0x260 [ 219.510237][ T30] #1: ffff888113389e80 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: vfs_utimes+0x123/0x260 [ 219.520607][ T30] 2 locks held by kworker/u8:10/5683: [ 219.525979][ T30] #0: ffff888100078948 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x442/0x6b0 [ 219.536911][ T30] #1: ffffc90005177e58 ((work_completion)(&rreq->work)){....}-{0:0}, at: process_one_work+0x1ec/0x6b0 [ 219.547937][ T30] 2 locks held by syz.0.24/6141: [ 219.553034][ T30] #0: ffff8881062ba3f8 (sb_writers#14){....}-{0:0}, at: do_pwritev+0x8d/0xc0 [ 219.561959][ T30] #1: ffff888113320720 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: netfs_start_io_direct+0x79/0xd0 [ 219.572967][ T30] 2 locks held by syz.0.24/6143: [ 219.577886][ T30] #0: ffff8881062ba3f8 (sb_writers#14){....}-{0:0}, at: vfs_utimes+0x248/0x260 [ 219.586880][ T30] #1: ffff888113320720 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: vfs_utimes+0x123/0x260 [ 219.597116][ T30] 2 locks held by kworker/u8:11/6144: [ 219.602538][ T30] #0: ffff888100078948 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x442/0x6b0 [ 219.613646][ T30] #1: ffffc900059cfe58 ((work_completion)(&rreq->work)){....}-{0:0}, at: process_one_work+0x1ec/0x6b0 [ 219.624667][ T30] 2 locks held by syz.1.25/6602: [ 219.629590][ T30] #0: ffff88810c7c73f8 (sb_writers#14){....}-{0:0}, at: do_pwritev+0x8d/0xc0 [ 219.638439][ T30] #1: ffff888113320cf8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: netfs_start_io_direct+0x79/0xd0 [ 219.649452][ T30] 2 locks held by syz.1.25/6603: [ 219.654348][ T30] #0: ffff88810c7c73f8 (sb_writers#14){....}-{0:0}, at: vfs_utimes+0x248/0x260 [ 219.663394][ T30] #1: ffff888113320cf8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: vfs_utimes+0x123/0x260 [ 219.673628][ T30] 2 locks held by kworker/u8:12/6604: [ 219.678976][ T30] #0: ffff888100078948 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x442/0x6b0 [ 219.689901][ T30] #1: ffffc90006107e58 ((work_completion)(&rreq->work)){....}-{0:0}, at: process_one_work+0x1ec/0x6b0 [ 219.701064][ T30] 2 locks held by syz.2.26/7062: [ 219.705968][ T30] #0: ffff88810bb393f8 (sb_writers#14){....}-{0:0}, at: do_pwritev+0x8d/0xc0 [ 219.714827][ T30] #1: ffff8881133212d0 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: netfs_start_io_direct+0x79/0xd0 [ 219.725850][ T30] 2 locks held by syz.2.26/7064: [ 219.730790][ T30] #0: ffff88810bb393f8 (sb_writers#14){....}-{0:0}, at: vfs_utimes+0x248/0x260 [ 219.739831][ T30] #1: ffff8881133212d0 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: vfs_utimes+0x123/0x260 [ 219.750066][ T30] [ 219.752360][ T30] ============================================= [ 219.752360][ T30] [ 219.760945][ T30] NMI backtrace for cpu 0 [ 219.765278][ T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 [ 219.773089][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 219.783123][ T30] Call Trace: [ 219.786376][ T30] [ 219.789367][ T30] dump_stack_lvl+0x5a/0x90 [ 219.793862][ T30] nmi_cpu_backtrace+0xd4/0x110 [ 219.798688][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 219.804719][ T30] nmi_trigger_cpumask_backtrace+0xd5/0x140 [ 219.810593][ T30] watchdog+0x648/0x680 [ 219.814725][ T30] ? watchdog+0x1f5/0x680 [ 219.819016][ T30] ? __pfx_watchdog+0x10/0x10 [ 219.823667][ T30] kthread+0xd6/0x100 [ 219.827609][ T30] ? __pfx_kthread+0x10/0x10 [ 219.832182][ T30] ret_from_fork+0x2c/0x50 [ 219.836574][ T30] ? __pfx_kthread+0x10/0x10 [ 219.841139][ T30] ret_from_fork_asm+0x1a/0x30 [ 219.845862][ T30] [ 219.848899][ T30] Sending NMI from CPU 0 to CPUs 1: [ 219.854086][ C1] NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x1a/0x20 [ 219.855068][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 219.870178][ T30] Kernel Offset: disabled [ 219.874475][ T30] Rebooting in 86400 seconds..