audit: type=1400 audit(1664783893.168:8): avc: denied { kernel } for pid=3576 comm="syz-executor.7" 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: 3578 at kernel/events/core.c:2233 perf_event_task_tick+0xbeb/0x1050
Modules linked in:
CPU: 0 PID: 3578 Comm: syz-executor.7 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:ffff88806ce09aa0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff888008660b90 RCX: 0000000000000100
RDX: ffff88801e0bb580 RSI: ffffffff8156d94b RDI: 0000000000000005
RBP: ffff88801a7ac908 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888008660c28
R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
FS: 00007fd82cb49700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f72b7204368 CR3: 000000001756a000 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:rcu_core+0x7c8/0x2080
Code: 8d 3c c5 d0 6e b0 85 e8 f6 f1 45 00 4c 0f a3 3d 2e e2 7d 04 0f 82 64 06 00 00 49 8d 7e 08 48 89 f8 48 c1 e8 03 42 80 3c 20 00 <0f> 85 cd 13 00 00 49 8b 46 08 4c 89 f7 49 c7 46 08 00 00 00 00 e8
RSP: 0018:ffff88806ce09e58 EFLAGS: 00000246
RAX: 1ffff11006589047 RBX: 0000000000000003 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000104 RDI: ffff888032c48238
RBP: 0000000000000002 R08: 0000000000000000 R09: ffffffff85b06ed7
R10: fffffbfff0b60dda R11: 0000000000000001 R12: dffffc0000000000
R13: ffff88806ce09ed8 R14: ffff888032c48230 R15: 0000000000000000
__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:check_preemption_disabled+0x3e/0x180
Code: 44 8b 25 dd d8 dc 7b 65 8b 1d 7e 2d dd 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 e9 16 fa 3a 00 0f 1f 44 00 00 9c 5b 81 e3 00
RSP: 0018:ffff88803f947c50 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff812a1cb8
loop7: detected capacity change from 0 to 2048
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffffffff849ec800 R08: 0000000000000000 R09: ffffffff85b06ed7
R10: fffffbfff0b60dda R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff849ec7c0 R14: ffff888009fba988 R15: 1ffff11007f28fc1
rcu_is_watching+0x11/0xb0
rcu_read_lock_sched_held+0x20/0x80
lock_release+0x547/0x750
fd_install+0x1df/0x640
__do_sys_perf_event_open+0x1fc3/0x32c0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd82f5d3b19
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:00007fd82cb49188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fd82f6e6f60 RCX: 00007fd82f5d3b19
RDX: ffffffefffffffff RSI: 0000000000000000 RDI: 0000000020000280
RBP: 00007fd82f62df6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff2b1a579f R14: 00007fd82cb49300 R15: 0000000000022000
irq event stamp: 1061
hardirqs last enabled at (1060): [] asm_sysvec_apic_timer_interrupt+0x16/0x20
hardirqs last disabled at (1061): [] sysvec_apic_timer_interrupt+0xb/0xc0
softirqs last enabled at (74): [] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (511): [] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
hrtimer: interrupt took 20849 ns
======================================================
----------------
Code disassembly (best guess):
0: 8d 3c c5 d0 6e b0 85 lea -0x7a4f9130(,%rax,8),%edi
7: e8 f6 f1 45 00 callq 0x45f202
c: 4c 0f a3 3d 2e e2 7d bt %r15,0x47de22e(%rip) # 0x47de242
13: 04
14: 0f 82 64 06 00 00 jb 0x67e
1a: 49 8d 7e 08 lea 0x8(%r14),%rdi
1e: 48 89 f8 mov %rdi,%rax
21: 48 c1 e8 03 shr $0x3,%rax
25: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1)
* 2a: 0f 85 cd 13 00 00 jne 0x13fd <-- trapping instruction
30: 49 8b 46 08 mov 0x8(%r14),%rax
34: 4c 89 f7 mov %r14,%rdi
37: 49 c7 46 08 00 00 00 movq $0x0,0x8(%r14)
3e: 00
3f: e8 .byte 0xe8