audit: type=1400 audit(1664354494.931:8): avc: denied { kernel } for pid=3722 comm="syz-executor.2" 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: 293 at kernel/events/core.c:2233 event_filter_match+0x422/0x660
Modules linked in:
CPU: 0 PID: 293 Comm: syz-executor.5 Not tainted 6.0.0-rc7-next-20220927 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:event_filter_match+0x422/0x660
Code: 00 00 00 e9 7c fc ff ff e8 bb 2e f1 ff 65 8b 2d 30 94 ad 7e 31 ff 89 ee e8 5b 2b f1 ff 85 ed 0f 84 ef 00 00 00 e8 9e 2e f1 ff <0f> 0b eb 9f e8 45 a5 23 00 e9 17 fc ff ff e8 8b 2e f1 ff 48 8d 7b
RSP: 0018:ffff88806ce09c70 EFLAGS: 00010046
RAX: 0000000080010001 RBX: ffff88803bc505c8 RCX: 0000000000000000
RDX: ffff88800fe41ac0 RSI: ffffffff8154e1a2 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff865b401b R12: ffff88803bc507e8
R13: 0000000000000000 R14: ffff88803bc50670 R15: ffff88803bc507e8
FS: 00005555567c4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555567cdc58 CR3: 000000000e77a000 CR4: 0000000000350ef0
Call Trace:
merge_sched_in+0x107/0x1110
visit_groups_merge.constprop.0.isra.0+0x4fc/0xef0
ctx_sched_in+0x2e6/0x770
perf_event_sched_in+0x75/0x80
ctx_resched+0x1ce/0x390
__perf_install_in_context+0x285/0x9c0
remote_function+0x125/0x1b0
__flush_smp_call_function_queue+0x1df/0x5a0
__sysvec_call_function_single+0x92/0x3a0
sysvec_call_function_single+0x89/0xc0
asm_sysvec_call_function_single+0x16/0x20
RIP: 0010:write_comp_data+0x10/0x90
Code: c0 6e 02 00 48 8b 80 28 14 00 00 e9 aa 2f 1a 03 66 2e 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 d2 49 89 f8 65 8b 05 d0 62 bc 7e <89> c6 81 e6 00 01 00 00 65 48 8b 14 25 c0 6e 02 00 a9 00 01 ff 00
RSP: 0018:ffff888030687b10 EFLAGS: 00000202
RAX: 0000000080000000 RBX: ffff888030687cf0 RCX: ffffffff81812951
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005
RBP: ffff888030687c10 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801b4662f0
R13: 0000000000000040 R14: 00000000000000c0 R15: ffff88801b5da080
step_into+0x8f1/0x2120
walk_component+0xf5/0x5b0
path_lookupat+0x1ba/0x850
filename_lookup+0x1ce/0x590
user_path_at_empty+0x42/0x60
__x64_sys_umount+0xf8/0x190
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa34298df87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 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:00007ffef75e3eb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa34298df87
RDX: 00007ffef75e3f8e RSI: 000000000000000a RDI: 00007ffef75e3f80
RBP: 00007ffef75e3f80 R08: 00000000ffffffff R09: 00007ffef75e3d50
R10: 00005555567c5c7b R11: 0000000000000246 R12: 00007fa3429e6105
R13: 00007ffef75e5040 R14: 00005555567c5c20 R15: 00007ffef75e5080
irq event stamp: 134892
hardirqs last enabled at (134891): [] path_init+0x1010/0x1830
hardirqs last disabled at (134892): [] sysvec_call_function_single+0xb/0xc0
softirqs last enabled at (131806): [] fpu_clone+0x3c2/0xb00
softirqs last disabled at (131804): [] fpu_clone+0x335/0xb00
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 293 at kernel/events/core.c:2557 merge_sched_in+0xadb/0x1110
Modules linked in:
CPU: 0 PID: 293 Comm: syz-executor.5 Tainted: G W 6.0.0-rc7-next-20220927 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:merge_sched_in+0xadb/0x1110
Code: ff ff e8 e8 08 ef ff 65 8b 05 5d 6e ab 7e 31 ff 89 c6 89 04 24 e8 85 05 ef ff 8b 04 24 85 c0 0f 84 13 02 00 00 e8 c5 08 ef ff <0f> 0b e9 c4 fb ff ff e8 b9 08 ef ff 4c 89 e8 48 05 18 01 00 00 e9
RSP: 0018:ffff88806ce09cb0 EFLAGS: 00010046
RAX: 0000000080010001 RBX: ffff88806ce3d140 RCX: 0000000000000000
RDX: ffff88800fe41ac0 RSI: ffffffff8157077b RDI: 0000000000000005
RBP: ffff88803bc505c8 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff865b401b R12: ffff88806ce3d140
R13: ffff88806ce00000 R14: ffff88803bc50670 R15: ffff88803bc507e8
FS: 00005555567c4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555567cdc58 CR3: 000000000e77a000 CR4: 0000000000350ef0
Call Trace:
visit_groups_merge.constprop.0.isra.0+0x4fc/0xef0
ctx_sched_in+0x2e6/0x770
perf_event_sched_in+0x75/0x80
ctx_resched+0x1ce/0x390
__perf_install_in_context+0x285/0x9c0
remote_function+0x125/0x1b0
__flush_smp_call_function_queue+0x1df/0x5a0
__sysvec_call_function_single+0x92/0x3a0
sysvec_call_function_single+0x89/0xc0
asm_sysvec_call_function_single+0x16/0x20
RIP: 0010:write_comp_data+0x10/0x90
Code: c0 6e 02 00 48 8b 80 28 14 00 00 e9 aa 2f 1a 03 66 2e 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 d2 49 89 f8 65 8b 05 d0 62 bc 7e <89> c6 81 e6 00 01 00 00 65 48 8b 14 25 c0 6e 02 00 a9 00 01 ff 00
RSP: 0018:ffff888030687b10 EFLAGS: 00000202
RAX: 0000000080000000 RBX: ffff888030687cf0 RCX: ffffffff81812951
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005
RBP: ffff888030687c10 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801b4662f0
R13: 0000000000000040 R14: 00000000000000c0 R15: ffff88801b5da080
step_into+0x8f1/0x2120
walk_component+0xf5/0x5b0
path_lookupat+0x1ba/0x850
filename_lookup+0x1ce/0x590
user_path_at_empty+0x42/0x60
__x64_sys_umount+0xf8/0x190
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa34298df87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 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:00007ffef75e3eb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa34298df87
RDX: 00007ffef75e3f8e RSI: 000000000000000a RDI: 00007ffef75e3f80
RBP: 00007ffef75e3f80 R08: 00000000ffffffff R09: 00007ffef75e3d50
R10: 00005555567c5c7b R11: 0000000000000246 R12: 00007fa3429e6105
R13: 00007ffef75e5040 R14: 00005555567c5c20 R15: 00007ffef75e5080
irq event stamp: 134892
hardirqs last enabled at (134891): [] path_init+0x1010/0x1830
hardirqs last disabled at (134892): [] sysvec_call_function_single+0xb/0xc0
softirqs last enabled at (131806): [] fpu_clone+0x3c2/0xb00
softirqs last disabled at (131804): [] fpu_clone+0x335/0xb00
---[ end trace 0000000000000000 ]---
audit: type=1400 audit(1664354495.255:9): avc: denied { write } for pid=3722 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
hrtimer: interrupt took 27612 ns
------------[ cut here ]------------
======================================================
----------------
Code disassembly (best guess):
0: c0 6e 02 00 shrb $0x0,0x2(%rsi)
4: 48 8b 80 28 14 00 00 mov 0x1428(%rax),%rax
b: e9 aa 2f 1a 03 jmpq 0x31a2fba
10: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
17: 00 00 00
1a: 49 89 f1 mov %rsi,%r9
1d: 49 89 d2 mov %rdx,%r10
20: 49 89 f8 mov %rdi,%r8
23: 65 8b 05 d0 62 bc 7e mov %gs:0x7ebc62d0(%rip),%eax # 0x7ebc62fa
* 2a: 89 c6 mov %eax,%esi <-- trapping instruction
2c: 81 e6 00 01 00 00 and $0x100,%esi
32: 65 48 8b 14 25 c0 6e mov %gs:0x26ec0,%rdx
39: 02 00
3b: a9 00 01 ff 00 test $0xff0100,%eax