audit: type=1400 audit(1663580323.009:8): avc: denied { kernel } for pid=3708 comm="syz-executor.4" 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: 3709 at kernel/events/core.c:2233 perf_event_task_tick+0xbeb/0x1050
Modules linked in:
CPU: 0 PID: 3709 Comm: syz-executor.4 Not tainted 6.0.0-rc5-next-20220916 #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 75 3b ef ff 65 44 8b 35 e9 99 ab 7e 31 ff 44 89 f6 e8 13 38 ef ff 45 85 f6 0f 84 04 01 00 00 e8 55 3b ef ff <0f> 0b e9 60 fa ff ff e8 49 3b ef ff 65 8b 1d be 99 ab 7e 31 ff 89
RSP: 0000:ffff88806ce09cf0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8880086605c8 RCX: 0000000000000100
RDX: ffff88803fea9ac0 RSI: ffffffff8156dbeb RDI: 0000000000000005
RBP: ffff8880101fdd08 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888008660660
R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
FS: 00007fb7a18fd700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005566b4b83080 CR3: 0000000039002000 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+0x1ca/0xbd0
hrtimer_interrupt+0x315/0x770
__sysvec_apic_timer_interrupt+0x144/0x500
sysvec_apic_timer_interrupt+0x89/0xc0
asm_sysvec_apic_timer_interrupt+0x16/0x20
RIP: 0010:check_preemption_disabled+0x45/0x180
Code: 65 8b 1d 8e 2e de 7b 81 e3 ff ff ff 7f 31 ff 89 de 0f 1f 44 00 00 85 db 74 15 0f 1f 44 00 00 44 89 e0 5b 5d 41 5c 41 5d 41 5e e6 fa 3b 00 0f 1f 44 00 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89
RSP: 0000:ffff888018417c78 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 1ffff11003082f97 RCX: ffffffff812a3fcf
RDX: dffffc0000000000 RSI: 0000000000000102 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff85b02f17
R10: fffffbfff0b605e2 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: ffffffff85406e80 R15: 0000000000000000
rcu_is_watching+0x11/0xb0
rcu_read_lock_sched_held+0x20/0x80
lock_acquire+0x45e/0x530
rcu_core+0x780/0x2080
__do_softirq+0x1c8/0x8d0
__irq_exit_rcu+0x11b/0x180
irq_exit_rcu+0x5/0x20
sysvec_apic_timer_interrupt+0x40/0xc0
asm_sysvec_apic_timer_interrupt+0x16/0x20
RIP: 0033:0x7fb7a4387b19
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:00007fb7a18fd188 EFLAGS: 00000246
RAX: 0000000000000004 RBX: 00007fb7a449af60 RCX: 00007fb7a4387b19
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000280
RBP: 00007fb7a43e1f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffde2c86caf R14: 00007fb7a18fd300 R15: 0000000000022000
irq event stamp: 2397
hardirqs last enabled at (2396): [] asm_sysvec_apic_timer_interrupt+0x16/0x20
hardirqs last disabled at (2397): [] sysvec_apic_timer_interrupt+0xb/0xc0
softirqs last enabled at (1590): [] inet6_fill_ifla6_attrs+0x1a08/0x1fd0
softirqs last disabled at (2043): [] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
======================================================
----------------
Code disassembly (best guess):
0: 65 8b 1d 8e 2e de 7b mov %gs:0x7bde2e8e(%rip),%ebx # 0x7bde2e95
7: 81 e3 ff ff ff 7f and $0x7fffffff,%ebx
d: 31 ff xor %edi,%edi
f: 89 de mov %ebx,%esi
11: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
16: 85 db test %ebx,%ebx
18: 74 15 je 0x2f
1a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
1f: 44 89 e0 mov %r12d,%eax
22: 5b pop %rbx
23: 5d pop %rbp
24: 41 5c pop %r12
26: 41 5d pop %r13
28: 41 5e pop %r14
* 2a: e9 e6 fa 3b 00 jmpq 0x3bfb15 <-- trapping instruction
2f: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
34: 9c pushfq
35: 5b pop %rbx
36: 81 e3 00 02 00 00 and $0x200,%ebx
3c: 31 ff xor %edi,%edi
3e: 48 rex.W
3f: 89 .byte 0x89