audit: type=1400 audit(1667272164.478:8): avc: denied { kernel } for pid=3818 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
BUG: unable to handle page fault for address: ffffed100fffc000
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 7ffd3067 P4D 7ffd3067 PUD 7ffd2067 PMD 7ffd1067 PTE 0
Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 3817 Comm: syz-executor.7 Not tainted 6.1.0-rc3-next-20221031 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__memset+0x24/0x50
Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00
RSP: 0018:ffff888041397cc0 EFLAGS: 00010216
RAX: 0000000000000000 RBX: ffff88800bf8c0c0 RCX: 1ffffe21fe5fcbeb
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000
RBP: ffff88800bf83a00 R08: 0000000000000005 R09: ffffed10017f1818
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800bf83a00
R13: ffff88800bf8c0c0 R14: ffffffff815f27a0 R15: 1ffff1100119941f
FS: 00007f8add84a700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed100fffc000 CR3: 000000001e812000 CR4: 0000000000350ef0
Call Trace:
<TASK>
kasan_unpoison+0x23/0x60
mempool_exit+0x1c2/0x330
bioset_exit+0x2c9/0x630
disk_release+0x143/0x490
device_release+0xa2/0x250
kobject_put+0x173/0x280
put_device+0x1b/0x40
put_disk+0x41/0x60
loop_control_ioctl+0x4d1/0x630
__x64_sys_ioctl+0x19a/0x220
do_syscall_64+0x3b/0xa0
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f8ae02d4b19
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:00007f8add84a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8ae03e7f60 RCX: 00007f8ae02d4b19
RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005
RBP: 00007f8ae032ef6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffff100d7ef R14: 00007f8add84a300 R15: 0000000000022000
</TASK>
Modules linked in:
CR2: ffffed100fffc000
---[ end trace 0000000000000000 ]---
RIP: 0010:__memset+0x24/0x50
Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00
RSP: 0018:ffff888041397cc0 EFLAGS: 00010216
RAX: 0000000000000000 RBX: ffff88800bf8c0c0 RCX: 1ffffe21fe5fcbeb
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000
RBP: ffff88800bf83a00 R08: 0000000000000005 R09: ffffed10017f1818
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800bf83a00
R13: ffff88800bf8c0c0 R14: ffffffff815f27a0 R15: 1ffff1100119941f
FS: 00007f8add84a700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed100fffc000 CR3: 000000001e812000 CR4: 0000000000350ef0
hrtimer: interrupt took 21320 ns
ieee80211 phy6: Selected rate control algorithm 'minstrel_ht'
audit: type=1400 audit(1667272164.902:9): avc: denied { write } for pid=3836 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
ieee80211 phy7: Selected rate control algorithm 'minstrel_ht'
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
ieee80211 phy8: Selected rate control algorithm 'minstrel_ht'
raw_sendmsg: syz-executor.7 forgot to set AF_INET. Fix it!
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
ieee80211 phy9: Selected rate control algorithm 'minstrel_ht'
ieee80211 phy10: Selected rate control algorithm 'minstrel_ht'
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
ieee80211 phy11: Selected rate control algorithm 'minstrel_ht'
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
ieee80211 phy12: Selected rate control algorithm 'minstrel_ht'
Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
Bluetooth: hci0: HCI_REQ-0x0c1a
Bluetooth: hci0: command 0x0409 tx timeout
Bluetooth: hci4: Opcode 0x c03 failed: -110
Bluetooth: hci2: Opcode 0x c03 failed: -110
Bluetooth: hci3: Opcode 0x c03 failed: -110
Bluetooth: hci0: command 0x041b tx timeout
----------------
Code disassembly (best guess):
0: 90 nop
1: 90 nop
2: 90 nop
3: 90 nop
4: 90 nop
5: 90 nop
6: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
b: 49 89 f9 mov %rdi,%r9
e: 48 89 d1 mov %rdx,%rcx
11: 83 e2 07 and $0x7,%edx
14: 48 c1 e9 03 shr $0x3,%rcx
18: 40 0f b6 f6 movzbl %sil,%esi
1c: 48 b8 01 01 01 01 01 movabs $0x101010101010101,%rax
23: 01 01 01
26: 48 0f af c6 imul %rsi,%rax
* 2a: f3 48 ab rep stos %rax,%es:(%rdi) <-- trapping instruction
2d: 89 d1 mov %edx,%ecx
2f: f3 aa rep stos %al,%es:(%rdi)
31: 4c 89 c8 mov %r9,%rax
34: e9 4d d4 12 00 jmpq 0x12d486
39: 66 data16
3a: 66 data16
3b: 2e cs
3c: 0f .byte 0xf
3d: 1f (bad)
3e: 84 00 test %al,(%rax)