last executing test programs:
kernel console output (not intermixed with test programs):
ntext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 30.793974][ T29] audit: type=1400 audit(1776908850.613:59): avc: denied { write } for pid=2952 comm="sh" path="pipe:[2345]" dev="pipefs" ino=2345 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1
[ 30.816468][ T29] audit: type=1400 audit(1776908850.613:60): avc: denied { rlimitinh } for pid=2952 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 30.835706][ T29] audit: type=1400 audit(1776908850.613:61): avc: denied { siginh } for pid=2952 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
Warning: Permanently added '10.128.1.155' (ED25519) to the list of known hosts.
[ 41.467067][ T29] audit: type=1400 audit(1776908861.323:62): avc: denied { mounton } for pid=2963 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2022 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1
[ 41.493255][ T29] audit: type=1400 audit(1776908861.343:63): avc: denied { mount } for pid=2963 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 41.501711][ T2963] cgroup: Unknown subsys name 'net'
[ 41.527056][ T29] audit: type=1400 audit(1776908861.373:64): avc: denied { unmount } for pid=2963 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 41.668571][ T2963] cgroup: Unknown subsys name 'cpuset'
[ 41.677819][ T2963] cgroup: Unknown subsys name 'rlimit'
[ 41.685835][ T2965]
[ 41.688201][ T2965] ================================================
[ 41.694868][ T2965] WARNING: lock held when returning to user space!
[ 41.701444][ T2965] syzkaller #0 Not tainted
[ 41.705959][ T2965] ------------------------------------------------
[ 41.712534][ T2965] udevd/2965 is leaving the kernel with locks still held!
[ 41.719835][ T2965] 1 lock held by udevd/2965:
[ 41.724532][ T2965] #0: ffffffff896ddaa0 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x2f/0x300
[ 41.734201][ T2965] BUG: sleeping function called from invalid context at ./include/linux/uaccess.h:169
[ 41.743788][ T2965] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 2965, name: udevd
[ 41.752511][ T2965] preempt_count: 0, expected: 0
[ 41.757404][ T2965] RCU nest depth: 1, expected: 0
[ 41.762423][ T2965] INFO: lockdep is turned off.
[ 41.767212][ T2965] CPU: 1 UID: 0 PID: 2965 Comm: udevd Not tainted syzkaller #0 PREEMPT(full)
[ 41.767245][ T2965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 41.767259][ T2965] Call Trace:
[ 41.767266][ T2965]
[ 41.767275][ T2965] dump_stack_lvl+0x100/0x190
[ 41.767314][ T2965] __might_resched.cold+0x1ec/0x232
[ 41.767353][ T2965] ? __pfx___might_resched+0x10/0x10
[ 41.767387][ T2965] ? rcu_is_watching+0x12/0xc0
[ 41.767426][ T2965] __might_fault+0x8b/0x140
[ 41.767455][ T2965] _copy_from_user+0x29/0xd0
[ 41.767490][ T2965] __x64_sys_rt_sigprocmask+0x185/0x410
[ 41.767530][ T2965] ? __pfx___x64_sys_rt_sigprocmask+0x10/0x10
[ 41.767580][ T2965] ? lock_release+0x245/0x310
[ 41.767612][ T2965] ? rcu_is_watching+0x12/0xc0
[ 41.767650][ T2965] do_syscall_64+0x10b/0x7f0
[ 41.767677][ T2965] ? irqentry_exit+0xe5/0x6c0
[ 41.767718][ T2965] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 41.767746][ T2965] RIP: 0033:0x7ff1c3e4af07
[ 41.767769][ T2965] Code: 00 00 00 53 48 89 fb 48 8d 3d 75 2c 19 00 e8 b0 03 05 00 41 ba 08 00 00 00 31 d2 48 89 de bf 02 00 00 00 b8 0e 00 00 00 0f 05 <5b> c3 0f 1f 80 00 00 00 00 89 f8 f7 d8 0f 48 c7 c3 0f 1f 84 00 00
[ 41.767794][ T2965] RSP: 002b:00007ffe95d2e570 EFLAGS: 00000246 ORIG_RAX: 000000000000000e
[ 41.767819][ T2965] RAX: ffffffffffffffda RBX: 00007ffe95d2e588 RCX: 00007ff1c3e4af07
[ 41.767837][ T2965] RDX: 0000000000000000 RSI: 00007ffe95d2e588 RDI: 0000000000000002
[ 41.767854][ T2965] RBP: 0000000000000000 R08: 00007ff1c3fddb60 R09: 0000000000000000
[ 41.767869][ T2965] R10: 0000000000000008 R11: 0000000000000246 R12: 00007ffe95d2e940
[ 41.767886][ T2965] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 41.767909][ T2965]
[ 41.771287][ T2965] ------------[ cut here ]------------
[ 41.943035][ T2965] Voluntary context switch within RCU read-side critical section!
[ 41.943047][ T2965] WARNING: kernel/rcu/tree_plugin.h:332 at rcu_note_context_switch+0x859/0x19c0, CPU#1: udevd/2965
[ 41.961967][ T2965] Modules linked in:
[ 41.965876][ T2965] CPU: 1 UID: 0 PID: 2965 Comm: udevd Tainted: G W syzkaller #0 PREEMPT(full)
[ 41.976300][ T2965] Tainted: [W]=WARN
[ 41.980097][ T2965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 41.990150][ T2965] RIP: 0010:rcu_note_context_switch+0x859/0x19c0
[ 41.996486][ T2965] Code: c1 ea 03 80 3c 02 00 0f 85 9b 0b 00 00 48 8b 53 28 b9 01 00 00 00 4c 89 ef e8 a3 cf fe ff e9 1d f9 ff ff 48 8d 3d 57 fe 59 09 <67> 48 0f b9 3a e9 99 f8 ff ff 48 b8 00 00 00 00 00 fc ff df 48 8d
[ 42.016118][ T2965] RSP: 0018:ffffc90001597a28 EFLAGS: 00010002
[ 42.022187][ T2965] RAX: 0000000000000001 RBX: ffff8881f573a540 RCX: ffffffff8198b8a1
[ 42.030241][ T2965] RDX: 0000000000000000 RSI: ffffffff87b03ee0 RDI: ffffffff8af32b20
[ 42.038212][ T2965] RBP: ffff88811967bb80 R08: 0000000000000000 R09: fffffbfff15e343a
[ 42.046182][ T2965] R10: ffffffff8af1a1d7 R11: 0000000000000000 R12: 0000000000000000
[ 42.054153][ T2965] R13: ffff88811967bffc R14: ffffffff8cfb0680 R15: ffffffff8af1b164
[ 42.062122][ T2965] FS: 00007ff1c3da4880(0000) GS:ffff888268789000(0000) knlGS:0000000000000000
[ 42.071053][ T2965] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 42.077638][ T2965] CR2: 0000555795e32620 CR3: 0000000123056000 CR4: 00000000003506f0
[ 42.085620][ T2965] Call Trace:
[ 42.088944][ T2965]
[ 42.091974][ T2965] ? page_table_check_set+0x477/0x920
[ 42.097382][ T2965] ? rcu_is_watching+0x12/0xc0
[ 42.102159][ T2965] ? __schedule+0x1b85/0x4840
[ 42.106934][ T2965] ? rcu_is_watching+0x12/0xc0
[ 42.111710][ T2965] __schedule+0x25e/0x4840
[ 42.116226][ T2965] ? __page_table_check_ptes_set+0x163/0x230
[ 42.122313][ T2965] ? __pfx___schedule+0x10/0x10
[ 42.127179][ T2965] ? rcu_is_watching+0x12/0xc0
[ 42.131969][ T2965] ? schedule+0x2bf/0x390
[ 42.136302][ T2965] ? lock_release+0x245/0x310
[ 42.141070][ T2965] schedule+0xdd/0x390
[ 42.145139][ T2965] schedule_hrtimeout_range_clock+0x2d0/0x310
[ 42.151209][ T2965] ? __pfx_schedule_hrtimeout_range_clock+0x10/0x10
[ 42.157815][ T2965] ? rcu_is_watching+0x12/0xc0
[ 42.162715][ T2965] ? trace_irq_enable.constprop.0+0x11e/0x160
[ 42.168837][ T2965] do_epoll_wait+0xdc3/0x1020
[ 42.173612][ T2965] ? vma_start_read+0x280/0x940
[ 42.178485][ T2965] ? __pfx_do_epoll_wait+0x10/0x10
[ 42.183628][ T2965] ? __pfx_ep_autoremove_wake_function+0x10/0x10
[ 42.190105][ T2965] ? rcu_is_watching+0x12/0xc0
[ 42.194895][ T2965] ? count_memcg_events_mm.constprop.0+0xfa/0x2a0
[ 42.201355][ T2965] ? lock_release+0x245/0x310
[ 42.206056][ T2965] __x64_sys_epoll_wait+0x194/0x290
[ 42.211294][ T2965] ? exc_page_fault+0x66/0xc0
[ 42.215996][ T2965] ? __pfx___x64_sys_epoll_wait+0x10/0x10
[ 42.221741][ T2965] ? rcu_is_watching+0x12/0xc0
[ 42.226621][ T2965] do_syscall_64+0x10b/0x7f0
[ 42.231311][ T2965] ? irqentry_exit+0xe5/0x6c0
[ 42.236004][ T2965] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 42.242011][ T2965] RIP: 0033:0x7ff1c3e92407
[ 42.246428][ T2965] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
[ 42.266125][ T2965] RSP: 002b:00007ffe95d2e660 EFLAGS: 00000202 ORIG_RAX: 00000000000000e8
[ 42.274549][ T2965] RAX: ffffffffffffffda RBX: 00007ff1c3da4880 RCX: 00007ff1c3e92407
[ 42.282603][ T2965] RDX: 0000000000000004 RSI: 00007ffe95d2e6f0 RDI: 0000000000000004
[ 42.290575][ T2965] RBP: 0000555795c572c0 R08: 0000000000000000 R09: 0000000000000000
[ 42.298545][ T2965] R10: ffffffffffffffff R11: 0000000000000202 R12: 0000555795f0f470
[ 42.306515][ T2965] R13: 00007ffe95d2e6f0 R14: 0000000000000000 R15: 0000000000000004
[ 42.314592][ T2965]
[ 42.317612][ T2965] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 42.324893][ T2965] CPU: 1 UID: 0 PID: 2965 Comm: udevd Tainted: G W syzkaller #0 PREEMPT(full)
[ 42.335310][ T2965] Tainted: [W]=WARN
[ 42.339126][ T2965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 42.349177][ T2965] Call Trace:
[ 42.352637][ T2965]
[ 42.355699][ T2965] dump_stack_lvl+0x100/0x190
[ 42.360477][ T2965] vpanic+0x552/0x970
[ 42.364476][ T2965] ? __pfx_vpanic+0x10/0x10
[ 42.369021][ T2965] ? lock_release+0x245/0x310
[ 42.373715][ T2965] panic+0xd1/0xe0
[ 42.377438][ T2965] ? __pfx_panic+0x10/0x10
[ 42.381857][ T2965] ? check_panic_on_warn+0x1f/0x90
[ 42.386982][ T2965] check_panic_on_warn.cold+0x19/0x34
[ 42.392796][ T2965] ? rcu_note_context_switch+0x859/0x19c0
[ 42.398575][ T2965] __warn.cold+0x191/0x328
[ 42.402994][ T2965] __report_bug+0x296/0x3d0
[ 42.407507][ T2965] ? rcu_note_context_switch+0x859/0x19c0
[ 42.413272][ T2965] ? __pfx___report_bug+0x10/0x10
[ 42.418302][ T2965] ? __alloc_frozen_pages_noprof+0x2a3/0x28a0
[ 42.424377][ T2965] ? trace_rcu_utilization+0x31/0x240
[ 42.429926][ T2965] ? avc_has_perm+0x135/0x1e0
[ 42.434605][ T2965] report_bug_entry+0xe1/0x290
[ 42.439366][ T2965] ? rcu_note_context_switch+0x859/0x19c0
[ 42.445089][ T2965] handle_bug+0x1cd/0x2a0
[ 42.449424][ T2965] exc_invalid_op+0x17/0x50
[ 42.454024][ T2965] asm_exc_invalid_op+0x1a/0x20
[ 42.458961][ T2965] RIP: 0010:rcu_note_context_switch+0x859/0x19c0
[ 42.465295][ T2965] Code: c1 ea 03 80 3c 02 00 0f 85 9b 0b 00 00 48 8b 53 28 b9 01 00 00 00 4c 89 ef e8 a3 cf fe ff e9 1d f9 ff ff 48 8d 3d 57 fe 59 09 <67> 48 0f b9 3a e9 99 f8 ff ff 48 b8 00 00 00 00 00 fc ff df 48 8d
[ 42.484918][ T2965] RSP: 0018:ffffc90001597a28 EFLAGS: 00010002
[ 42.490988][ T2965] RAX: 0000000000000001 RBX: ffff8881f573a540 RCX: ffffffff8198b8a1
[ 42.498956][ T2965] RDX: 0000000000000000 RSI: ffffffff87b03ee0 RDI: ffffffff8af32b20
[ 42.506925][ T2965] RBP: ffff88811967bb80 R08: 0000000000000000 R09: fffffbfff15e343a
[ 42.515175][ T2965] R10: ffffffff8af1a1d7 R11: 0000000000000000 R12: 0000000000000000
[ 42.523155][ T2965] R13: ffff88811967bffc R14: ffffffff8cfb0680 R15: ffffffff8af1b164
[ 42.531248][ T2965] ? trace_rcu_utilization+0x31/0x240
[ 42.536641][ T2965] ? rcu_note_context_switch+0x73/0x19c0
[ 42.542311][ T2965] ? page_table_check_set+0x477/0x920
[ 42.547716][ T2965] ? rcu_is_watching+0x12/0xc0
[ 42.552491][ T2965] ? __schedule+0x1b85/0x4840
[ 42.557190][ T2965] ? rcu_is_watching+0x12/0xc0
[ 42.562072][ T2965] __schedule+0x25e/0x4840
[ 42.566525][ T2965] ? __page_table_check_ptes_set+0x163/0x230
[ 42.572595][ T2965] ? __pfx___schedule+0x10/0x10
[ 42.577464][ T2965] ? rcu_is_watching+0x12/0xc0
[ 42.582249][ T2965] ? schedule+0x2bf/0x390
[ 42.586589][ T2965] ? lock_release+0x245/0x310
[ 42.591285][ T2965] schedule+0xdd/0x390
[ 42.595361][ T2965] schedule_hrtimeout_range_clock+0x2d0/0x310
[ 42.601627][ T2965] ? __pfx_schedule_hrtimeout_range_clock+0x10/0x10
[ 42.608411][ T2965] ? rcu_is_watching+0x12/0xc0
[ 42.613200][ T2965] ? trace_irq_enable.constprop.0+0x11e/0x160
[ 42.619304][ T2965] do_epoll_wait+0xdc3/0x1020
[ 42.623996][ T2965] ? vma_start_read+0x280/0x940
[ 42.628942][ T2965] ? __pfx_do_epoll_wait+0x10/0x10
[ 42.634096][ T2965] ? __pfx_ep_autoremove_wake_function+0x10/0x10
[ 42.640444][ T2965] ? rcu_is_watching+0x12/0xc0
[ 42.645239][ T2965] ? count_memcg_events_mm.constprop.0+0xfa/0x2a0
[ 42.651684][ T2965] ? lock_release+0x245/0x310
[ 42.656467][ T2965] __x64_sys_epoll_wait+0x194/0x290
[ 42.661703][ T2965] ? exc_page_fault+0x66/0xc0
[ 42.666401][ T2965] ? __pfx___x64_sys_epoll_wait+0x10/0x10
[ 42.672184][ T2965] ? rcu_is_watching+0x12/0xc0
[ 42.676975][ T2965] do_syscall_64+0x10b/0x7f0
[ 42.681659][ T2965] ? irqentry_exit+0xe5/0x6c0
[ 42.686358][ T2965] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 42.692253][ T2965] RIP: 0033:0x7ff1c3e92407
[ 42.696716][ T2965] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
[ 42.716523][ T2965] RSP: 002b:00007ffe95d2e660 EFLAGS: 00000202 ORIG_RAX: 00000000000000e8
[ 42.724945][ T2965] RAX: ffffffffffffffda RBX: 00007ff1c3da4880 RCX: 00007ff1c3e92407
[ 42.732914][ T2965] RDX: 0000000000000004 RSI: 00007ffe95d2e6f0 RDI: 0000000000000004
[ 42.741057][ T2965] RBP: 0000555795c572c0 R08: 0000000000000000 R09: 0000000000000000
[ 42.749051][ T2965] R10: ffffffffffffffff R11: 0000000000000202 R12: 0000555795f0f470
[ 42.757037][ T2965] R13: 00007ffe95d2e6f0 R14: 0000000000000000 R15: 0000000000000004
[ 42.765272][ T2965]
[ 42.768767][ T2965] Kernel Offset: disabled
[ 42.773093][ T2965] Rebooting in 86400 seconds..