audit: type=1400 audit(1664998950.985:9): avc: denied { kernel } for pid=4040 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: 4034 at kernel/events/core.c:2233 event_filter_match+0x422/0x660
Modules linked in:
CPU: 0 PID: 4034 Comm: syz-executor.1 Not tainted 6.0.0-next-20221005 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:event_filter_match+0x422/0x660
Code: 00 00 00 e9 7c fc ff ff e8 7b 33 f1 ff 65 8b 2d 20 8d ad 7e 31 ff 89 ee e8 1b 30 f1 ff 85 ed 0f 84 ef 00 00 00 e8 5e 33 f1 ff <0f> 0b eb 9f e8 25 9f 23 00 e9 17 fc ff ff e8 4b 33 f1 ff 48 8d 7b
RSP: 0018:ffff88806ce09c70 EFLAGS: 00010046
RAX: 0000000000010001 RBX: ffff888041940000 RCX: 0000000000000000
RDX: ffff88800a7b0000 RSI: ffffffff8154e8b2 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff865b601b R12: ffff888041940220
R13: 0000000000000000 R14: ffff8880419400a8 R15: ffff888041940220
FS: 00007eff7a979700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555dc2c58 CR3: 000000001b7f6000 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:put_cpu_partial+0x115/0x1c0
Code: 39 43 28 75 61 48 c7 43 28 00 00 00 00 48 c7 c6 20 fd 77 81 48 89 df e8 e9 2e b2 ff 48 85 ed 74 06 e8 0f f7 d4 ff fb 4d 85 ed <74> 21 5b 4c 89 ee 5d 4c 89 e7 41 5c 41 5d 41 5e 41 5f e9 84 fd ff
RSP: 0018:ffff88804185f550 EFLAGS: 00000246
RAX: 0000000000000a8d RBX: ffff88806ce3c4a0 RCX: ffffffff81298e8f
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000200 R08: 0000000000000001 R09: ffffffff86cd581f
R10: fffffbfff0d9ab03 R11: 0000000000000001 R12: ffff888007c4f780
R13: 0000000000000000 R14: ffffea00003b7180 R15: 0000000000000003
qlist_free_all+0x6d/0x1a0
kasan_quarantine_reduce+0x184/0x210
__kasan_slab_alloc+0x48/0x70
kmem_cache_alloc+0x1a9/0x3e0
alloc_buffer_head+0x20/0x150
alloc_page_buffers+0x29e/0x680
__getblk_slow+0x3e7/0xbe0
__getblk_gfp+0x72/0x80
ext4_sb_breadahead_unmovable+0x64/0xf0
__ext4_get_inode_loc+0xde7/0x11e0
__ext4_get_inode_loc_noinmem+0xb9/0x160
__ext4_iget+0x419/0x4070
ext4_fill_super+0x7222/0xb4f0
get_tree_bdev+0x428/0x740
vfs_get_tree+0x8e/0x300
path_mount+0x1310/0x1e20
__x64_sys_mount+0x282/0x300
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7eff7d40504a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 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:00007eff7a978fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007eff7d40504a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007eff7a979000
RBP: 00007eff7a979040 R08: 00007eff7a979040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007eff7a979000 R15: 0000000020013a00
irq event stamp: 2702
hardirqs last enabled at (2701): [] put_cpu_partial+0x111/0x1c0
hardirqs last disabled at (2702): [] sysvec_call_function_single+0xb/0xc0
softirqs last enabled at (2224): [] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (2187): [] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4034 at kernel/events/core.c:2557 merge_sched_in+0xadb/0x1110
Modules linked in:
CPU: 0 PID: 4034 Comm: syz-executor.1 Tainted: G W 6.0.0-next-20221005 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:merge_sched_in+0xadb/0x1110
Code: ff ff e8 08 0e ef ff 65 8b 05 ad 67 ab 7e 31 ff 89 c6 89 04 24 e8 a5 0a ef ff 8b 04 24 85 c0 0f 84 13 02 00 00 e8 e5 0d ef ff <0f> 0b e9 c4 fb ff ff e8 d9 0d ef ff 4c 89 e8 48 05 18 01 00 00 e9
RSP: 0018:ffff88806ce09cb0 EFLAGS: 00010046
RAX: 0000000000010001 RBX: ffff88806ce3d2c0 RCX: 0000000000000000
RDX: ffff88800a7b0000 RSI: ffffffff81570e2b RDI: 0000000000000005
RBP: ffff888041940000 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff865b601b R12: ffff88806ce3d2c0
R13: ffff88806ce00000 R14: ffff8880419400a8 R15: ffff888041940220
FS: 00007eff7a979700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555dc2c58 CR3: 000000001b7f6000 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:put_cpu_partial+0x115/0x1c0
Code: 39 43 28 75 61 48 c7 43 28 00 00 00 00 48 c7 c6 20 fd 77 81 48 89 df e8 e9 2e b2 ff 48 85 ed 74 06 e8 0f f7 d4 ff fb 4d 85 ed <74> 21 5b 4c 89 ee 5d 4c 89 e7 41 5c 41 5d 41 5e 41 5f e9 84 fd ff
RSP: 0018:ffff88804185f550 EFLAGS: 00000246
RAX: 0000000000000a8d RBX: ffff88806ce3c4a0 RCX: ffffffff81298e8f
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000200 R08: 0000000000000001 R09: ffffffff86cd581f
R10: fffffbfff0d9ab03 R11: 0000000000000001 R12: ffff888007c4f780
R13: 0000000000000000 R14: ffffea00003b7180 R15: 0000000000000003
qlist_free_all+0x6d/0x1a0
kasan_quarantine_reduce+0x184/0x210
__kasan_slab_alloc+0x48/0x70
kmem_cache_alloc+0x1a9/0x3e0
alloc_buffer_head+0x20/0x150
alloc_page_buffers+0x29e/0x680
__getblk_slow+0x3e7/0xbe0
__getblk_gfp+0x72/0x80
ext4_sb_breadahead_unmovable+0x64/0xf0
__ext4_get_inode_loc+0xde7/0x11e0
__ext4_get_inode_loc_noinmem+0xb9/0x160
__ext4_iget+0x419/0x4070
ext4_fill_super+0x7222/0xb4f0
get_tree_bdev+0x428/0x740
vfs_get_tree+0x8e/0x300
path_mount+0x1310/0x1e20
__x64_sys_mount+0x282/0x300
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7eff7d40504a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 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:00007eff7a978fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007eff7d40504a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007eff7a979000
RBP: 00007eff7a979040 R08: 00007eff7a979040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007eff7a979000 R15: 0000000020013a00
irq event stamp: 2702
hardirqs last enabled at (2701): [] put_cpu_partial+0x111/0x1c0
hardirqs last disabled at (2702): [] sysvec_call_function_single+0xb/0xc0
softirqs last enabled at (2224): [] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (2187): [] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none.
EXT4-fs (loop1): unmounting filesystem.
EXT4-fs (loop3): unmounting filesystem.
----------------
Code disassembly (best guess):
0: 39 43 28 cmp %eax,0x28(%rbx)
3: 75 61 jne 0x66
5: 48 c7 43 28 00 00 00 movq $0x0,0x28(%rbx)
c: 00
d: 48 c7 c6 20 fd 77 81 mov $0xffffffff8177fd20,%rsi
14: 48 89 df mov %rbx,%rdi
17: e8 e9 2e b2 ff callq 0xffb22f05
1c: 48 85 ed test %rbp,%rbp
1f: 74 06 je 0x27
21: e8 0f f7 d4 ff callq 0xffd4f735
26: fb sti
27: 4d 85 ed test %r13,%r13
* 2a: 74 21 je 0x4d <-- trapping instruction
2c: 5b pop %rbx
2d: 4c 89 ee mov %r13,%rsi
30: 5d pop %rbp
31: 4c 89 e7 mov %r12,%rdi
34: 41 5c pop %r12
36: 41 5d pop %r13
38: 41 5e pop %r14
3a: 41 5f pop %r15
3c: e9 .byte 0xe9
3d: 84 fd test %bh,%ch
3f: ff .byte 0xff