rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2690 jiffies s: 110365 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 30493 Comm: udevd Not tainted 6.6.0-rc1-syzkaller-00072-gaed8aee11130 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 RIP: 0010:kasan_check_range+0x5/0x290 mm/kasan/generic.c:186 Code: 01 c6 48 89 c7 e8 fb e6 e2 08 31 c0 c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 0f 1f 84 00 00 00 00 00 66 0f 1f 00 55 <41> 57 41 56 41 54 53 b0 01 48 85 f6 0f 84 a0 01 00 00 4c 8d 04 37 RSP: 0018:ffffc900001f0d18 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff817d0966 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e9a6668 RBP: 0000000000000001 R08: ffffffff817d093d R09: 1ffffffff243433b R10: dffffc0000000000 R11: fffffbfff243433c R12: dffffc0000000000 R13: ffff8880b992b940 R14: ffff888078425340 R15: dffffc0000000000 FS: 00007f9b09f9ec80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fea2d79d988 CR3: 00000000258ae000 CR4: 00000000003506e0 Call Trace: instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] cpumask_test_cpu include/linux/cpumask.h:504 [inline] cpu_online include/linux/cpumask.h:1082 [inline] trace_hrtimer_start include/trace/events/timer.h:202 [inline] debug_activate kernel/time/hrtimer.c:478 [inline] enqueue_hrtimer+0x76/0x310 kernel/time/hrtimer.c:1087 __run_hrtimer kernel/time/hrtimer.c:1705 [inline] __hrtimer_run_queues+0x6c0/0xd10 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline] __sysvec_apic_timer_interrupt+0x104/0x390 arch/x86/kernel/apic/apic.c:1080 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1074 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline] RIP: 0010:write_comp_data kernel/kcov.c:236 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x34/0x90 kernel/kcov.c:304 Code: 8b 15 70 11 76 7e 65 8b 05 71 11 76 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b 83 ba 04 16 00 00 00 74 52 8b 82 e0 15 00 00 <83> f8 03 75 47 48 8b 8a e8 15 00 00 44 8b 8a e4 15 00 00 49 c1 e1 RSP: 0018:ffffc90015f7f0f0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc90015f7f120 RCX: ffff88807ef9d940 RDX: ffff88807ef9d940 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff813d8df7 R09: ffffffff813da8d0 R10: 0000000000000003 R11: ffff88807ef9d940 R12: ffff88807ef9d940 R13: ffffffff817b6a10 R14: dffffc0000000000 R15: ffffc90015f7f120 unwind_done arch/x86/include/asm/unwind.h:50 [inline] unwind_get_return_address+0x37/0xc0 arch/x86/kernel/unwind_orc.c:366 arch_stack_walk+0x11f/0x1a0 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:1800 [inline] slab_free_freelist_hook mm/slub.c:1826 [inline] slab_free mm/slub.c:3809 [inline] __kmem_cache_free+0x25f/0x3b0 mm/slub.c:3822 tomoyo_realpath_from_path+0x5a3/0x5e0 security/tomoyo/realpath.c:286 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_check_open_permission+0x254/0x4e0 security/tomoyo/file.c:771 security_file_open+0x63/0xa0 security/security.c:2836 do_dentry_open+0x325/0x1430 fs/open.c:916 do_open fs/namei.c:3639 [inline] path_openat+0x27bb/0x3180 fs/namei.c:3796 do_filp_open+0x234/0x490 fs/namei.c:3823 do_sys_openat2+0x13e/0x1d0 fs/open.c:1422 do_sys_open fs/open.c:1437 [inline] __do_sys_openat fs/open.c:1453 [inline] __se_sys_openat fs/open.c:1448 [inline] __x64_sys_openat+0x247/0x290 fs/open.c:1448 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9b0a3579a4 Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007ffd8d2fe850 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 000055b6c9810b10 RCX: 00007f9b0a3579a4 RDX: 0000000000080000 RSI: 000055b6c97e63f0 RDI: 00000000ffffff9c RBP: 000055b6c97e63f0 R08: 000055b6c97e63f0 R09: 0000000000000040 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000 R13: 0000000000000704 R14: 0000000000000000 R15: 0000000000000001