INFO: task syz-executor.4:29971 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.4  state:D stack:26640 pid:29971 tgid:29969 ppid:25767  flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x177f/0x4960 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0x149/0x260 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+0x6a3/0xd60 kernel/locking/mutex.c:752
 __fdget_pos+0x258/0x320 fs/file.c:1191
 fdget_pos include/linux/file.h:74 [inline]
 ksys_read+0x82/0x2c0 fs/read_write.c:610
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f378607cda9
RSP: 002b:00007f3786e730c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f37861ac050 RCX: 00007f378607cda9
RDX: 0000000000002020 RSI: 0000000020004900 RDI: 0000000000000005
RBP: 00007f37860c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f37861ac050 R15: 00007ffd8727f1c8
 </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+0x1e7/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x310 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+0xfaf/0xff0 kernel/hung_task.c:379
 kthread+0x2d3/0x370 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 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: 30702 Comm: udevd 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:filter_irq_stacks+0x4f/0xa0 kernel/stacktrace.c:397
Code: b0 83 2e 8b 48 89 fb eb 0c 49 ff c7 48 83 c3 08 4d 39 fc 74 4f 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 48 89 df e8 c7 33 6f 00 4b 8b 04 fe 48 39 e8 72 0c 48 c7 c1
RSP: 0018:ffffc9000357eef8 EFLAGS: 00000246
RAX: 1ffff920006afdfd RBX: ffffc9000357efe8 RCX: dffffc0000000000
RDX: 0000000000002820 RSI: 0000000000000012 RDI: ffffc9000357ef80
RBP: ffffffff8b400130 R08: ffffffff813500ec R09: 1ffffffff1e03e4d
R10: dffffc0000000000 R11: fffffbfff1e03e4e R12: 0000000000000012
R13: ffffffff8b2e83b0 R14: ffffc9000357ef80 R15: 000000000000000d
FS:  00007fb8baca7c80(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561b3592a158 CR3: 0000000028b05000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 stack_depot_save_flags+0x27/0x650 lib/stackdepot.c:500
 kasan_save_stack mm/kasan/common.c:48 [inline]
 kasan_save_track+0x51/0x70 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:314 [inline]
 __kasan_slab_alloc+0x66/0x70 mm/kasan/common.c:340
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3813 [inline]
 slab_alloc_node mm/slub.c:3860 [inline]
 kmem_cache_alloc_node+0x18f/0x380 mm/slub.c:3903
 __alloc_skb+0x181/0x420 net/core/skbuff.c:641
 alloc_skb include/linux/skbuff.h:1296 [inline]
 nlmsg_new include/net/netlink.h:1010 [inline]
 audit_buffer_alloc kernel/audit.c:1796 [inline]
 audit_log_start+0x185/0xa30 kernel/audit.c:1914
 common_lsm_audit+0xdc/0x1b20 security/lsm_audit.c:449
 smack_log+0x421/0x540 security/smack/smack_access.c:383
 smk_tskacc+0x2ff/0x360 security/smack/smack_access.c:253
 smack_inode_permission+0x2dc/0x380 security/smack/smack_lsm.c:1229
 security_inode_permission+0xa1/0xf0 security/security.c:2195
 may_lookup fs/namei.c:1723 [inline]
 link_path_walk+0x2da/0xe70 fs/namei.c:2270
 path_lookupat+0xa9/0x450 fs/namei.c:2481
 filename_lookup+0x255/0x610 fs/namei.c:2511
 vfs_statx+0x105/0x4e0 fs/stat.c:244
 vfs_fstatat+0x135/0x190 fs/stat.c:304
 __do_sys_newfstatat fs/stat.c:468 [inline]
 __se_sys_newfstatat fs/stat.c:462 [inline]
 __x64_sys_newfstatat+0x117/0x190 fs/stat.c:462
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fb8bad7d5f4
Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8
RSP: 002b:00007fff4ca6d1b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000561b354fed00 RCX: 00007fb8bad7d5f4
RDX: 00007fff4ca6d1c8 RSI: 00007fff4ca6d658 RDI: 00000000ffffff9c
RBP: 00007fff4ca6d258 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff4ca6d658
R13: 00007fff4ca6d1c8 R14: 0000561b354dd910 R15: 0000561b34e30a04
 </TASK>