rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-....: (1 GPs behind) idle=0e9/1/0x4000000000000000 softirq=122120/122121 fqs=5171 (detected by 1, t=10502 jiffies, g=233733, q=1851) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 31503 Comm: syz-executor.1 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline] RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0xde/0x180 mm/kasan/generic.c:189 Code: 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 75 56 5b 5d 41 5c c3 48 85 d2 74 5e 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 50 80 38 00 <74> f2 eb d4 41 bc 08 00 00 00 48 89 ea 45 29 dc 4d 8d 1c 2c eb 0c RSP: 0018:ffffc900000078a0 EFLAGS: 00000046 RAX: fffffbfff1fabf40 RBX: fffffbfff1fabf41 RCX: ffffffff815c8a6a RDX: fffffbfff1fabf41 RSI: 0000000000000008 RDI: ffffffff8fd5fa00 RBP: fffffbfff1fabf40 R08: 0000000000000000 R09: ffffffff8fd5fa07 R10: fffffbfff1fabf40 R11: 0000000000000000 R12: ffff88807b0f0ad8 R13: ffff88807b0f0000 R14: ffff88807b0f0a60 R15: dffffc0000000000 FS: 00007f2368c2e700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ea27000 CR3: 00000000343d3000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: instrument_atomic_read include/linux/instrumented.h:71 [inline] test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline] __lock_acquire+0x101a/0x54a0 kernel/locking/lockdep.c:4997 lock_acquire kernel/locking/lockdep.c:5637 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5602 rcu_lock_acquire include/linux/rcupdate.h:268 [inline] rcu_read_lock include/linux/rcupdate.h:688 [inline] BPF_PROG_RUN_ARRAY include/linux/bpf.h:1292 [inline] trace_call_bpf+0x10f/0x5f0 kernel/trace/bpf_trace.c:127 perf_trace_run_bpf_submit+0x91/0x210 kernel/events/core.c:9708 perf_trace_preemptirq_template+0x296/0x460 include/trace/events/preemptirq.h:14 trace_irq_enable_rcuidle include/trace/events/preemptirq.h:40 [inline] trace_irq_enable_rcuidle include/trace/events/preemptirq.h:40 [inline] trace_hardirqs_on+0x156/0x1c0 kernel/trace/trace_preemptirq.c:44 asm_sysvec_irq_work+0x12/0x20 arch/x86/include/asm/idtentry.h:664 RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__rcu_read_unlock+0xc4/0x570 kernel/rcu/tree_plugin.h:425 Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e b6 01 00 00 8b 85 40 04 00 00 85 c0 75 54 <65> 48 8b 1c 25 40 70 02 00 48 8d bb 3c 04 00 00 48 b8 00 00 00 00 RSP: 0018:ffffc90000007dc0 EFLAGS: 00000206 RAX: 0000000000000006 RBX: ffff8880b9c3a900 RCX: 1ffffffff1fb349e RDX: 0000000000000000 RSI: 0000000000000100 RDI: 0000000000000000 RBP: ffffffff8b98c780 R08: 0000000000000001 R09: ffffffff8fd5fa9f R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff8539b800 R14: 0000000000000200 R15: ffffffff85396670 rcu_read_unlock include/linux/rcupdate.h:720 [inline] ieee80211_iterate_active_interfaces_atomic+0x92/0x180 net/mac80211/util.c:831 mac80211_hwsim_beacon+0xcd/0x1c0 drivers/net/wireless/mac80211_hwsim.c:1861 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1766 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:tomoyo_domain_quota_is_ok+0x2ec/0x550 security/tomoyo/util.c:1093 Code: 84 e4 0f 84 9d 01 00 00 45 31 e4 e8 2e b4 d4 fd 44 89 e0 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 41 bc 01 00 00 00 31 db 0f b4 d4 fd 89 d9 44 89 e0 31 ff d3 f8 83 e0 01 41 89 c7 89 c6 RSP: 0018:ffffc900029ef5a8 EFLAGS: 00000283 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88807b0f0000 RDX: 0000000000000000 RSI: ffff88807b0f0000 RDI: 0000000000000003 RBP: ffff88807c66da80 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff83a3129a R11: 0000000000000010 R12: 0000000000000010 R13: 00000000000000e5 R14: dffffc0000000000 R15: 0000000000000000 tomoyo_supervisor+0x2f2/0xf00 security/tomoyo/common.c:2089 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline] tomoyo_path_permission security/tomoyo/file.c:587 [inline] tomoyo_path_permission+0x270/0x3a0 security/tomoyo/file.c:573 tomoyo_check_open_permission+0x30f/0x380 security/tomoyo/file.c:780 tomoyo_file_open security/tomoyo/tomoyo.c:311 [inline] tomoyo_file_open+0xa3/0xd0 security/tomoyo/tomoyo.c:306 security_file_open+0x45/0xb0 security/security.c:1635 do_dentry_open+0x353/0x1250 fs/open.c:809 do_open fs/namei.c:3426 [inline] path_openat+0x1cad/0x2750 fs/namei.c:3559 do_filp_open+0x1aa/0x400 fs/namei.c:3586 do_sys_openat2+0x16d/0x4d0 fs/open.c:1212 do_sys_open fs/open.c:1228 [inline] __do_sys_openat fs/open.c:1244 [inline] __se_sys_openat fs/open.c:1239 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1239 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f236b6b8ae9 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2368c2e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f236b7cbf60 RCX: 00007f236b6b8ae9 RDX: 0000000000007a05 RSI: 0000000020000380 RDI: ffffffffffffff9c RBP: 00007f236b712f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001700 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc8db09e2f R14: 00007f2368c2e300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 74 f2 je 0xfffffff4 2: 48 89 c2 mov %rax,%rdx 5: b8 01 00 00 00 mov $0x1,%eax a: 48 85 d2 test %rdx,%rdx d: 75 56 jne 0x65 f: 5b pop %rbx 10: 5d pop %rbp 11: 41 5c pop %r12 13: c3 retq 14: 48 85 d2 test %rdx,%rdx 17: 74 5e je 0x77 19: 48 01 ea add %rbp,%rdx 1c: eb 09 jmp 0x27 1e: 48 83 c0 01 add $0x1,%rax 22: 48 39 d0 cmp %rdx,%rax 25: 74 50 je 0x77 27: 80 38 00 cmpb $0x0,(%rax) * 2a: 74 f2 je 0x1e <-- trapping instruction 2c: eb d4 jmp 0x2 2e: 41 bc 08 00 00 00 mov $0x8,%r12d 34: 48 89 ea mov %rbp,%rdx 37: 45 29 dc sub %r11d,%r12d 3a: 4d 8d 1c 2c lea (%r12,%rbp,1),%r11 3e: eb 0c jmp 0x4c