last executing test programs:
kernel console output (not intermixed with test programs):
Warning: Permanently added '10.128.0.161' (ED25519) to the list of known hosts.
[ 48.309134][ T29] audit: type=1400 audit(1777662159.217:62): avc: denied { mounton } for pid=2964 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1
[ 48.333331][ T29] audit: type=1400 audit(1777662159.237:63): avc: denied { mount } for pid=2964 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
[ 48.337019][ T2964] cgroup: Unknown subsys name 'net'
[ 48.363225][ T29] audit: type=1400 audit(1777662159.267:64): avc: denied { unmount } for pid=2964 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 48.497849][ T2964] cgroup: Unknown subsys name 'cpuset'
[ 48.506385][ T2964] cgroup: Unknown subsys name 'rlimit'
[ 48.647180][ T2960]
[ 48.649749][ T2960] ================================================
[ 48.656357][ T2960] WARNING: lock held when returning to user space!
[ 48.662947][ T2960] syzkaller #0 Not tainted
[ 48.667498][ T2960] ------------------------------------------------
[ 48.673997][ T2960] udevd/2960 is leaving the kernel with locks still held!
[ 48.681460][ T2960] 1 lock held by udevd/2960:
[ 48.686349][ T2960] #0: ffffffff896ddaa0 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x2f/0x300
[ 48.696500][ T2960] ------------[ cut here ]------------
[ 48.701976][ T2960] Voluntary context switch within RCU read-side critical section!
[ 48.701988][ T2960] WARNING: kernel/rcu/tree_plugin.h:332 at rcu_note_context_switch+0x859/0x19c0, CPU#1: udevd/2960
[ 48.720858][ T2960] Modules linked in:
[ 48.724789][ T2960] CPU: 1 UID: 0 PID: 2960 Comm: udevd Not tainted syzkaller #0 PREEMPT(full)
[ 48.733658][ T2960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 48.743827][ T2960] RIP: 0010:rcu_note_context_switch+0x859/0x19c0
[ 48.750294][ T2960] 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 62 59 09 <67> 48 0f b9 3a e9 99 f8 ff ff 48 b8 00 00 00 00 00 fc ff df 48 8d
[ 48.770511][ T2960] RSP: 0000:ffffc9000152fd70 EFLAGS: 00010002
[ 48.776592][ T2960] RAX: 0000000000000001 RBX: ffff8881f573a540 RCX: ffffffff81984ca1
[ 48.784664][ T2960] RDX: 0000000000000000 RSI: ffffffff87b040e0 RDI: ffffffff8af22320
[ 48.793006][ T2960] RBP: ffff88811e0abb80 R08: 0000000000000000 R09: fffffbfff15e133a
[ 48.801079][ T2960] R10: ffffffff8af099d7 R11: 0000000000000000 R12: 0000000000000000
[ 48.809160][ T2960] R13: ffff88811e0abffc R14: ffffffff8cf90680 R15: ffffffff8af0a964
[ 48.817250][ T2960] FS: 00007f043676b880(0000) GS:ffff8882687a9000(0000) knlGS:0000000000000000
[ 48.826205][ T2960] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 48.832890][ T2960] CR2: 000055fa83042ae0 CR3: 000000011e140000 CR4: 00000000003506f0
[ 48.841161][ T2960] Call Trace:
[ 48.844462][ T2960]
[ 48.847502][ T2960] ? __schedule+0x1b85/0x4840
[ 48.852307][ T2960] ? rcu_is_watching+0x12/0xc0
[ 48.857134][ T2960] __schedule+0x25e/0x4840
[ 48.861590][ T2960] ? trace_irq_enable.constprop.0+0x11e/0x160
[ 48.868207][ T2960] ? __pfx___schedule+0x10/0x10
[ 48.873254][ T2960] schedule+0xdd/0x390
[ 48.877343][ T2960] irqentry_exit+0x2f7/0x6c0
[ 48.881976][ T2960] asm_sysvec_reschedule_ipi+0x1a/0x20
[ 48.887483][ T2960] RIP: 0033:0x7f04368692dd
[ 48.892183][ T2960] Code: 41 fe 48 83 c0 02 80 3d 60 1e 14 00 00 48 8b 14 c3 0f 84 a6 00 00 00 48 39 d6 0f 84 db 00 00 00 4c 89 c7 48 c1 ef 0c 48 31 d7 <48> 89 7e 10 48 89 34 c3 48 85 d2 74 15 83 e5 01 74 10 48 8b 42 08
[ 48.912258][ T2960] RSP: 002b:00007fff5c632590 EFLAGS: 00010206
[ 48.918499][ T2960] RAX: 0000000000000003 RBX: 00007f04369a3ac0 RCX: 0000000000000000
[ 48.926617][ T2960] RDX: 000055fa83030160 RSI: 000055fa83042ad0 RDI: 000055ffdcab3122
[ 48.934790][ T2960] RBP: 0000000000000000 R08: 000055fa83042ae0 R09: 0000000000000003
[ 48.943054][ T2960] R10: 0000000000000000 R11: 0000000000000297 R12: 000055fa83042b00
[ 48.951044][ T2960] R13: 0000000000000000 R14: 0000000000000001 R15: 00007f04369a3ac0
[ 48.959210][ T2960]
[ 48.962240][ T2960] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 48.969617][ T2960] CPU: 1 UID: 0 PID: 2960 Comm: udevd Not tainted syzkaller #0 PREEMPT(full)
[ 48.979268][ T2960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 48.989796][ T2960] Call Trace:
[ 48.993282][ T2960]
[ 48.996266][ T2960] dump_stack_lvl+0x100/0x190
[ 49.001175][ T2960] vpanic+0x552/0x970
[ 49.005573][ T2960] ? __pfx_vpanic+0x10/0x10
[ 49.010467][ T2960] ? lock_release+0x245/0x310
[ 49.016070][ T2960] panic+0xd1/0xe0
[ 49.019825][ T2960] ? __pfx_panic+0x10/0x10
[ 49.024368][ T2960] ? check_panic_on_warn+0x1f/0x90
[ 49.030037][ T2960] check_panic_on_warn.cold+0x19/0x34
[ 49.035456][ T2960] ? rcu_note_context_switch+0x859/0x19c0
[ 49.041210][ T2960] __warn.cold+0x191/0x328
[ 49.045963][ T2960] __report_bug+0x296/0x3d0
[ 49.050946][ T2960] ? rcu_note_context_switch+0x859/0x19c0
[ 49.056870][ T2960] ? __pfx___report_bug+0x10/0x10
[ 49.062640][ T2960] ? pick_next_task_fair+0x1325/0x24d0
[ 49.068580][ T2960] ? trace_rcu_utilization+0x31/0x240
[ 49.074257][ T2960] ? __pfx_migrate_disable_switch.isra.0+0x10/0x10
[ 49.080978][ T2960] report_bug_entry+0xe1/0x290
[ 49.085793][ T2960] ? rcu_note_context_switch+0x859/0x19c0
[ 49.091789][ T2960] handle_bug+0x1cd/0x2a0
[ 49.096252][ T2960] exc_invalid_op+0x17/0x50
[ 49.101475][ T2960] asm_exc_invalid_op+0x1a/0x20
[ 49.106540][ T2960] RIP: 0010:rcu_note_context_switch+0x859/0x19c0
[ 49.112978][ T2960] 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 62 59 09 <67> 48 0f b9 3a e9 99 f8 ff ff 48 b8 00 00 00 00 00 fc ff df 48 8d
[ 49.133052][ T2960] RSP: 0000:ffffc9000152fd70 EFLAGS: 00010002
[ 49.139134][ T2960] RAX: 0000000000000001 RBX: ffff8881f573a540 RCX: ffffffff81984ca1
[ 49.147286][ T2960] RDX: 0000000000000000 RSI: ffffffff87b040e0 RDI: ffffffff8af22320
[ 49.155299][ T2960] RBP: ffff88811e0abb80 R08: 0000000000000000 R09: fffffbfff15e133a
[ 49.163913][ T2960] R10: ffffffff8af099d7 R11: 0000000000000000 R12: 0000000000000000
[ 49.172129][ T2960] R13: ffff88811e0abffc R14: ffffffff8cf90680 R15: ffffffff8af0a964
[ 49.180205][ T2960] ? trace_rcu_utilization+0x31/0x240
[ 49.185882][ T2960] ? __schedule+0x1b85/0x4840
[ 49.190663][ T2960] ? rcu_is_watching+0x12/0xc0
[ 49.195544][ T2960] __schedule+0x25e/0x4840
[ 49.199984][ T2960] ? trace_irq_enable.constprop.0+0x11e/0x160
[ 49.206094][ T2960] ? __pfx___schedule+0x10/0x10
[ 49.211051][ T2960] schedule+0xdd/0x390
[ 49.215138][ T2960] irqentry_exit+0x2f7/0x6c0
[ 49.219757][ T2960] asm_sysvec_reschedule_ipi+0x1a/0x20
[ 49.225231][ T2960] RIP: 0033:0x7f04368692dd
[ 49.229765][ T2960] Code: 41 fe 48 83 c0 02 80 3d 60 1e 14 00 00 48 8b 14 c3 0f 84 a6 00 00 00 48 39 d6 0f 84 db 00 00 00 4c 89 c7 48 c1 ef 0c 48 31 d7 <48> 89 7e 10 48 89 34 c3 48 85 d2 74 15 83 e5 01 74 10 48 8b 42 08
[ 49.249686][ T2960] RSP: 002b:00007fff5c632590 EFLAGS: 00010206
[ 49.256142][ T2960] RAX: 0000000000000003 RBX: 00007f04369a3ac0 RCX: 0000000000000000
[ 49.264415][ T2960] RDX: 000055fa83030160 RSI: 000055fa83042ad0 RDI: 000055ffdcab3122
[ 49.272940][ T2960] RBP: 0000000000000000 R08: 000055fa83042ae0 R09: 0000000000000003
[ 49.281065][ T2960] R10: 0000000000000000 R11: 0000000000000297 R12: 000055fa83042b00
[ 49.289221][ T2960] R13: 0000000000000000 R14: 0000000000000001 R15: 00007f04369a3ac0
[ 49.297381][ T2960]
[ 49.300990][ T2960] Kernel Offset: disabled
[ 49.305327][ T2960] Rebooting in 86400 seconds..