audit: type=1400 audit(1664678541.773:8): avc: denied { kernel } for pid=3786 comm="syz-executor.5" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3788 at kernel/events/core.c:2233 perf_event_task_tick+0xbeb/0x1050 Modules linked in: CPU: 0 PID: 3788 Comm: syz-executor.5 Not tainted 6.0.0-rc7-next-20220930 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:perf_event_task_tick+0xbeb/0x1050 Code: e9 34 fd ff ff e8 05 33 ef ff 65 44 8b 35 89 9c ab 7e 31 ff 44 89 f6 e8 a3 2f ef ff 45 85 f6 0f 84 04 01 00 00 e8 e5 32 ef ff <0f> 0b e9 60 fa ff ff e8 d9 32 ef ff 65 8b 1d 5e 9c ab 7e 31 ff 89 RSP: 0018:ffff88806ce09a70 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff8880086605c8 RCX: 0000000000000100 RDX: ffff88801b4d3580 RSI: ffffffff8156d94b RDI: 0000000000000005 RBP: ffff88800d3bf508 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888008660660 R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f2fc2756700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007feaf842a570 CR3: 000000001bdbe000 CR4: 0000000000350ef0 Call Trace: scheduler_tick+0x17e/0x350 update_process_times+0x138/0x190 tick_sched_handle+0x9b/0x180 tick_sched_timer+0xf2/0x120 __hrtimer_run_queues+0x184/0xb50 hrtimer_interrupt+0x315/0x770 __sysvec_apic_timer_interrupt+0x144/0x500 sysvec_apic_timer_interrupt+0x3b/0xc0 asm_sysvec_apic_timer_interrupt+0x16/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0x2e/0x60 Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 4a de 02 fd 48 89 ef e8 b2 53 03 fd 80 e7 02 74 06 e8 88 a6 25 fd fb bf 01 00 00 00 fd f7 f8 fc 65 8b 05 86 30 db 7b 85 c0 74 07 5b 5d e9 3b fd 38 RSP: 0018:ffff88806ce09e28 EFLAGS: 00000206 RAX: 0000000000000212 RBX: 0000000000000246 RCX: ffffffff81297e8f RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000000001 RBP: ffffffff85411e00 R08: 0000000000000001 R09: ffffffff86cd3817 R10: fffffbfff0d9a702 R11: 0000000000000001 R12: ffff88806ce38c58 R13: ffffffff85411e00 R14: ffffffff85411e40 R15: 0000000000000000 rcu_report_qs_rsp+0x6c/0x160 rcu_core+0x1b70/0x2080 __do_softirq+0x1c3/0x8f5 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x5/0x20 sysvec_apic_timer_interrupt+0x8e/0xc0 asm_sysvec_apic_timer_interrupt+0x16/0x20 RIP: 0010:kasan_check_range+0x13/0x1c0 Code: 5d 41 5c e9 3f c5 e7 02 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 85 f6 0f 84 73 01 00 00 48 89 f8 41 54 44 0f b6 c2 55 <53> 48 01 f0 72 14 eb 2c 0f 1f 00 48 ba ff ff ff ff ff ff ff fe 48 RSP: 0018:ffff888040ad7c10 EFLAGS: 00000202 RAX: ffffffff85b06ed0 RBX: 0000000000000000 RCX: ffffffff81288f78 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff85b06ed0 RBP: ffff88801b4d3580 R08: 0000000000000000 R09: ffff888040ad7cdf R10: ffffed100815af9b R11: 0000000000000001 R12: ffff88801b4d3580 R13: ffff88801b4d3580 R14: ffff88801b4d4840 R15: dffffc0000000000 trace_contention_end+0x28/0x140 __mutex_lock+0x227/0x14d0 __do_sys_perf_event_open+0x1eec/0x32c0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f2fc51e0b19 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:00007f2fc2756188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f2fc52f3f60 RCX: 00007f2fc51e0b19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000280 RBP: 00007f2fc523af6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc014af87f R14: 00007f2fc2756300 R15: 0000000000022000 irq event stamp: 915 hardirqs last enabled at (914): [] asm_sysvec_apic_timer_interrupt+0x16/0x20 hardirqs last disabled at (915): [] sysvec_apic_timer_interrupt+0xb/0xc0 softirqs last enabled at (0): [] copy_process+0x1e15/0x6e20 softirqs last disabled at (525): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- hrtimer: interrupt took 60258738 ns ====================================================== ---------------- Code disassembly (best guess): 0: 48 83 c7 18 add $0x18,%rdi 4: 53 push %rbx 5: 48 89 f3 mov %rsi,%rbx 8: 48 8b 74 24 10 mov 0x10(%rsp),%rsi d: e8 4a de 02 fd callq 0xfd02de5c 12: 48 89 ef mov %rbp,%rdi 15: e8 b2 53 03 fd callq 0xfd0353cc 1a: 80 e7 02 and $0x2,%bh 1d: 74 06 je 0x25 1f: e8 88 a6 25 fd callq 0xfd25a6ac 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 fd f7 f8 fc callq 0xfcf8f82c <-- trapping instruction 2f: 65 8b 05 86 30 db 7b mov %gs:0x7bdb3086(%rip),%eax # 0x7bdb30bc 36: 85 c0 test %eax,%eax 38: 74 07 je 0x41 3a: 5b pop %rbx 3b: 5d pop %rbp 3c: e9 .byte 0xe9 3d: 3b fd cmp %ebp,%edi 3f: 38 .byte 0x38