Warning: Permanently added '10.128.1.27' (ED25519) to the list of known hosts.
2025/10/29 02:51:06 parsed 1 programs
[ 69.422654][ T2849] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
2025/10/29 02:51:10 executed programs: 0
2025/10/29 02:51:29 executed programs: 3
2025/10/29 02:51:49 executed programs: 4
2025/10/29 02:52:08 executed programs: 5
2025/10/29 02:52:26 executed programs: 6
2025/10/29 02:52:47 executed programs: 7
2025/10/29 02:53:09 executed programs: 8
2025/10/29 02:53:30 executed programs: 9
[ 227.251281][ T31] INFO: task syz.3.17:3726 blocked for more than 143 seconds.
[ 227.259657][ T31] Not tainted syzkaller #0
[ 227.301356][ T31] Blocked by coredump.
[ 227.306073][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 227.371254][ T31] task:syz.3.17 state:D stack:13432 pid:3726 tgid:3725 ppid:3319 task_flags:0x400548 flags:0x00080001
[ 227.441249][ T31] Call Trace:
[ 227.444638][ T31]
[ 227.447731][ T31] __schedule+0x6ca/0x1620
[ 227.491275][ T31] ? schedule+0x21/0x140
[ 227.495616][ T31] ? io_uring_del_tctx_node+0x49/0xb0
[ 227.501132][ T31] schedule+0xac/0x140
[ 227.551257][ T31] schedule_preempt_disabled+0x32/0x60
[ 227.557779][ T31] __mutex_lock+0x4b5/0xcc0
[ 227.601273][ T31] ? do_raw_spin_unlock+0x5a/0x110
[ 227.606672][ T31] io_uring_del_tctx_node+0x49/0xb0
[ 227.661271][ T31] io_uring_clean_tctx+0x59/0xc0
[ 227.666925][ T31] io_uring_cancel_generic+0x28b/0x2d0
[ 227.721262][ T31] ? __pfx_autoremove_wake_function+0x10/0x10
[ 227.727700][ T31] do_exit+0xa4/0x9a0
[ 227.771260][ T31] do_group_exit+0x88/0xa0
[ 227.776327][ T31] get_signal+0x69d/0x740
[ 227.781071][ T31] arch_do_signal_or_restart+0x8a/0x260
[ 227.821265][ T31] exit_to_user_mode_loop+0x6d/0xe0
[ 227.827182][ T31] do_syscall_64+0x181/0x250
[ 227.911258][ T31] ? fpregs_assert_state_consistent+0x1b/0x30
[ 227.919035][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 227.961233][ T31] RIP: 0033:0x7fd60898efc9
[ 227.966044][ T31] RSP: 002b:00007fd6097d1038 EFLAGS: 00000246 ORIG_RAX: 000000000000010e
[ 228.011253][ T31] RAX: fffffffffffffdfe RBX: 00007fd608be5fa0 RCX: 00007fd60898efc9
[ 228.020369][ T31] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 228.111235][ T31] RBP: 00007fd608a11f91 R08: 0000000000000000 R09: 0000000000000000
[ 228.119576][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 228.161433][ T31] R13: 00007fd608be6038 R14: 00007fd608be5fa0 R15: 00007ffe8be1a918
[ 228.201258][ T31]
[ 228.204491][ T31]
[ 228.204491][ T31] Showing all locks held in the system:
[ 228.261241][ T31] 1 lock held by khungtaskd/31:
[ 228.266453][ T31] #0: ffffffff8397dc30 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x2e/0x100
[ 228.331247][ T31] 2 locks held by getty/1884:
[ 228.336285][ T31] #0: ffff8881047800a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x20/0x40
[ 228.421236][ T31] #1: ffffc90003e8b2f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x1c3/0x6e0
[ 228.481247][ T31] 1 lock held by syz.3.17/3726:
[ 228.486423][ T31] #0: ffff8881072ce0a8 (&ctx->uring_lock){....}-{3:3}, at: io_uring_del_tctx_node+0x49/0xb0
[ 228.571281][ T31] 3 locks held by syz.3.17/3727:
[ 228.576506][ T31] 1 lock held by syz.4.18/4137:
[ 228.621272][ T31] #0: ffff888103bb40a8 (&ctx->uring_lock){....}-{3:3}, at: io_uring_del_tctx_node+0x49/0xb0
[ 228.681233][ T31] 3 locks held by syz.4.18/4138:
[ 228.686844][ T31] 1 lock held by syz.5.19/4549:
[ 228.741329][ T31] #0: ffff888103bb10a8 (&ctx->uring_lock){....}-{3:3}, at: io_uring_del_tctx_node+0x49/0xb0
[ 228.801236][ T31] 3 locks held by syz.5.19/4550:
[ 228.806440][ T31] 1 lock held by syz.6.20/4961:
[ 228.871257][ T31] #0: ffff8881072da0a8 (&ctx->uring_lock){....}-{3:3}, at: io_uring_del_tctx_node+0x49/0xb0
[ 228.943760][ T31] 3 locks held by syz.6.20/4962:
[ 228.949061][ T31] 1 lock held by syz.7.21/5373:
[ 228.991275][ T31] #0: ffff8881416e00a8 (&ctx->uring_lock){....}-{3:3}, at: io_uring_del_tctx_node+0x49/0xb0
[ 229.051265][ T31] 3 locks held by syz.7.21/5374:
[ 229.057439][ T31] 1 lock held by syz.8.22/5785:
[ 229.107579][ T31] #0: ffff8881133a10a8 (&ctx->uring_lock){....}-{3:3}, at: io_uring_del_tctx_node+0x49/0xb0
[ 229.171275][ T31] 3 locks held by syz.8.22/5786:
[ 229.177137][ T31] 1 lock held by syz.9.23/6197:
[ 229.231253][ T31] #0: ffff8881476de0a8 (&ctx->uring_lock){....}-{3:3}, at: io_uring_del_tctx_node+0x49/0xb0
[ 229.281243][ T31] 3 locks held by syz.9.23/6198:
[ 229.286187][ T31] 1 lock held by syz.0.24/6609:
[ 229.331244][ T31] #0: ffff8881072df0a8 (&ctx->uring_lock){....}-{3:3}, at: io_uring_del_tctx_node+0x49/0xb0
[ 229.411283][ T31] 3 locks held by syz.0.24/6610:
[ 229.416933][ T31] 1 lock held by modprobe/6656:
[ 229.461239][ T31] #0: ffff88813bb2b498 (&rq->__lock){....}-{2:2}, at: raw_spin_rq_lock_nested+0x24/0x100
[ 229.511288][ T31]
[ 229.513975][ T31] =============================================
[ 229.513975][ T31]
[ 229.591411][ T31] NMI backtrace for cpu 0
[ 229.591423][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 229.591428][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 229.591430][ T31] Call Trace:
[ 229.591433][ T31]
[ 229.591435][ T31] dump_stack_lvl+0xa2/0xf0
[ 229.591444][ T31] nmi_cpu_backtrace+0x109/0x170
[ 229.591448][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 229.591454][ T31] nmi_trigger_cpumask_backtrace+0x8e/0x140
[ 229.591458][ T31] watchdog+0x573/0x5a0
[ 229.591463][ T31] ? watchdog+0xd1/0x5a0
[ 229.591466][ T31] ? __pfx_watchdog+0x10/0x10
[ 229.591470][ T31] kthread+0x203/0x230
[ 229.591476][ T31] ? __pfx_kthread+0x10/0x10
[ 229.591480][ T31] ret_from_fork+0xd2/0x1a0
[ 229.591486][ T31] ? __pfx_kthread+0x10/0x10
[ 229.591489][ T31] ret_from_fork_asm+0x1a/0x30
[ 229.591497][ T31]
[ 229.591498][ T31] Sending NMI from CPU 0 to CPUs 1:
[ 229.698077][ C1] NMI backtrace for cpu 1
[ 229.698082][ C1] CPU: 1 UID: 0 PID: 3727 Comm: syz.3.17 Not tainted syzkaller #0 PREEMPT(full)
[ 229.698087][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 229.698089][ C1] RIP: 0010:io_uring_show_fdinfo+0x1b2/0x790
[ 229.698095][ C1] Code: 0a 89 44 24 18 41 8b 17 0f ba e2 10 0f 82 95 01 00 00 49 8b 87 d0 00 00 00 89 e9 21 f1 44 8b 2c 88 41 39 f5 0f 87 74 01 00 00 <49> 8b 9f d8 00 00 00 44 89 e8 8b 4c 24 18 d3 e0 48 c1 e0 06 0f b6
[ 229.698098][ C1] RSP: 0018:ffffc900031dfc08 EFLAGS: 00000293
[ 229.698101][ C1] RAX: ffff888110180040 RBX: ffff88810f2ba040 RCX: 0000000000000082
[ 229.698103][ C1] RDX: 0000000000000008 RSI: 00000000000001ff RDI: 0000000000001000
[ 229.698105][ C1] RBP: 00000000c0d46c82 R08: 00000000fffffffc R09: 0000000000000000
[ 229.698107][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 229.698109][ C1] R13: 0000000000000082 R14: ffff8881043b42b8 R15: ffff8881072ce000
[ 229.698111][ C1] FS: 00007fd6087ff6c0(0000) GS:ffff8881b7306000(0000) knlGS:0000000000000000
[ 229.698113][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 229.698115][ C1] CR2: 00007f5400269e9c CR3: 0000000103752000 CR4: 00000000003506f0
[ 229.698121][ C1] Call Trace:
[ 229.698124][ C1]
[ 229.698129][ C1] seq_show+0x18e/0x1d0
[ 229.698136][ C1] seq_read_iter+0x195/0x480
[ 229.698141][ C1] seq_read+0x132/0x160
[ 229.698146][ C1] vfs_read+0xe2/0x360
[ 229.698152][ C1] ksys_read+0x74/0xf0
[ 229.698156][ C1] do_syscall_64+0x8f/0x250
[ 229.698163][ C1] ? fpregs_assert_state_consistent+0x1b/0x30
[ 229.698168][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 229.698171][ C1] RIP: 0033:0x7fd60898efc9
[ 229.698175][ C1] 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
[ 229.698177][ C1] RSP: 002b:00007fd6087ff038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 229.698180][ C1] RAX: ffffffffffffffda RBX: 00007fd608be6090 RCX: 00007fd60898efc9
[ 229.698182][ C1] RDX: 0000000000002020 RSI: 00002000000040c0 RDI: 0000000000000004
[ 229.698183][ C1] RBP: 00007fd608a11f91 R08: 0000000000000000 R09: 0000000000000000
[ 229.698185][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 229.698186][ C1] R13: 00007fd608be6128 R14: 00007fd608be6090 R15: 00007ffe8be1a918
[ 229.698190][ C1]