audit: type=1400 audit(1679917218.602:7): avc: denied { open } for pid=3912 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
audit: type=1400 audit(1679917218.602:8): avc: denied { kernel } for pid=3912 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
general protection fault, probably for non-canonical address 0xdffffc00040004d8: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x00000000200026c0-0x00000000200026c7]
CPU: 1 PID: 3913 Comm: syz-executor.4 Not tainted 6.3.0-rc3-next-20230327 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:do_iter_read+0x481/0x750
Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00
RSP: 0018:ffff888040adfc78 EFLAGS: 00010216
RAX: 00000000200026c0 RBX: ffff888040adfd60 RCX: ffffc9000560a000
RDX: 00000000040004d8 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 000000000000100a R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000100a R11: 0000000000000001 R12: ffff88803f723180
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84922580
FS: 00007f7ea57a2700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001140 CR3: 000000003e6cc000 CR4: 0000000000350ee0
Call Trace:
vfs_readv+0xe5/0x160
__x64_sys_preadv+0x233/0x310
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f7ea822cb19
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:00007f7ea57a2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007f7ea833ff60 RCX: 00007f7ea822cb19
RDX: 0000000000000001 RSI: 0000000020001140 RDI: 0000000000000004
RBP: 00007f7ea8286f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc46e14fdf R14: 00007f7ea57a2300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:do_iter_read+0x481/0x750
Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00
RSP: 0018:ffff888040adfc78 EFLAGS: 00010216
RAX: 00000000200026c0 RBX: ffff888040adfd60 RCX: ffffc9000560a000
RDX: 00000000040004d8 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 000000000000100a R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000100a R11: 0000000000000001 R12: ffff88803f723180
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84922580
FS: 00007f7ea57a2700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001140 CR3: 000000003e6cc000 CR4: 0000000000350ee0
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
lo: entered promiscuous mode
lo: entered allmulticast mode
general protection fault, probably for non-canonical address 0xdffffc00040004d8: 0000 [#2] PREEMPT SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x00000000200026c0-0x00000000200026c7]
CPU: 1 PID: 3952 Comm: syz-executor.4 Tainted: G D 6.3.0-rc3-next-20230327 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:do_iter_read+0x481/0x750
Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00
RSP: 0018:ffff888040fa7c78 EFLAGS: 00010216
RAX: 00000000200026c0 RBX: ffff888040fa7d60 RCX: ffffc90008220000
RDX: 00000000040004d8 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 000000000000100a R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000100a R11: 0000000000000001 R12: ffff88800fd08a00
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84922580
FS: 00007f7ea5760700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7ea5780ff8 CR3: 000000003e6cc000 CR4: 0000000000350ee0
Call Trace:
vfs_readv+0xe5/0x160
__x64_sys_preadv+0x233/0x310
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f7ea822cb19
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:00007f7ea5760188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007f7ea83400e0 RCX: 00007f7ea822cb19
RDX: 0000000000000001 RSI: 0000000020001140 RDI: 0000000000000004
RBP: 00007f7ea8286f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc46e14fdf R14: 00007f7ea5760300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:do_iter_read+0x481/0x750
Code: 00 0f 85 52 02 00 00 4d 8b 7c 24 28 e8 48 2c c6 ff 48 8b 44 24 18 80 38 00 0f 85 1c 02 00 00 48 8b 43 18 48 89 c2 48 c1 ea 03 <42> 80 3c 32 00 0f 85 ef 01 00 00 48 8b 4c 24 20 48 8b 30 80 39 00
RSP: 0018:ffff888040adfc78 EFLAGS: 00010216
RAX: 00000000200026c0 RBX: ffff888040adfd60 RCX: ffffc9000560a000
RDX: 00000000040004d8 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 000000000000100a R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000100a R11: 0000000000000001 R12: ffff88803f723180
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff84922580
FS: 00007f7ea5760700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7ea5780ff8 CR3: 000000003e6cc000 CR4: 0000000000350ee0
lo: left promiscuous mode
lo: left allmulticast mode
lo: entered promiscuous mode
lo: entered allmulticast mode
lo: left promiscuous mode
lo: left allmulticast mode
lo: entered promiscuous mode
lo: entered allmulticast mode
lo: left promiscuous mode
lo: left allmulticast mode
hrtimer: interrupt took 19697 ns
lo: entered promiscuous mode
lo: entered allmulticast mode
memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4167 'syz-executor.1'
loop1: detected capacity change from 0 to 40
random: crng reseeded on system resumption
syz-executor.1: attempt to access beyond end of device
loop1: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop1, logical block 10, lost async page write
syz-executor.1: attempt to access beyond end of device
loop1: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop1, logical block 10, lost async page write
syz-executor.1: attempt to access beyond end of device
loop1: rw=2049, sector=44, nr_sectors = 4 limit=40
sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive.
random: crng reseeded on system resumption
sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive.
loop1: detected capacity change from 0 to 40
syz-executor.1: attempt to access beyond end of device
loop1: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop1, logical block 10, lost async page write
syz-executor.1: attempt to access beyond end of device
loop1: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop1, logical block 10, lost async page write
random: crng reseeded on system resumption
sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive.
loop1: detected capacity change from 0 to 40
random: crng reseeded on system resumption
sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive.
random: crng reseeded on system resumption
syz-executor.1: attempt to access beyond end of device
loop1: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop1, logical block 10, lost async page write
sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive.
syz-executor.1: attempt to access beyond end of device
loop1: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop1, logical block 10, lost async page write
sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive.
random: crng reseeded on system resumption
sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive.
loop1: detected capacity change from 0 to 40
random: crng reseeded on system resumption
sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive.
random: crng reseeded on system resumption
random: crng reseeded on system resumption
sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive.
random: crng reseeded on system resumption
sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive.
loop2: detected capacity change from 0 to 40
loop2: detected capacity change from 0 to 40
loop2: detected capacity change from 0 to 40
loop4: detected capacity change from 0 to 40
loop6: detected capacity change from 0 to 40
loop2: detected capacity change from 0 to 40
loop4: detected capacity change from 0 to 40
loop6: detected capacity change from 0 to 40
loop7: detected capacity change from 0 to 40
loop4: detected capacity change from 0 to 40
loop6: detected capacity change from 0 to 40
loop7: detected capacity change from 0 to 40
loop7: detected capacity change from 0 to 40
----------------
Code disassembly (best guess):
0: 00 0f add %cl,(%rdi)
2: 85 52 02 test %edx,0x2(%rdx)
5: 00 00 add %al,(%rax)
7: 4d 8b 7c 24 28 mov 0x28(%r12),%r15
c: e8 48 2c c6 ff callq 0xffc62c59
11: 48 8b 44 24 18 mov 0x18(%rsp),%rax
16: 80 38 00 cmpb $0x0,(%rax)
19: 0f 85 1c 02 00 00 jne 0x23b
1f: 48 8b 43 18 mov 0x18(%rbx),%rax
23: 48 89 c2 mov %rax,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 42 80 3c 32 00 cmpb $0x0,(%rdx,%r14,1) <-- trapping instruction
2f: 0f 85 ef 01 00 00 jne 0x224
35: 48 8b 4c 24 20 mov 0x20(%rsp),%rcx
3a: 48 8b 30 mov (%rax),%rsi
3d: 80 39 00 cmpb $0x0,(%rcx)