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: 3969 Comm: syz-executor.5 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:ffff88804323fc78 EFLAGS: 00010216
RAX: 00000000200026c0 RBX: ffff88804323fd60 RCX: ffffc90004dec000
RDX: 00000000040004d8 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 000000000000100a R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000100a R11: 0000000000000001 R12: ffff88801023d900
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8491de20
FS: 00007f7cd1cfb700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000080 CR3: 0000000016a74000 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: 0033:0x7f7cd4785b19
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:00007f7cd1cfb188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007f7cd4898f60 RCX: 00007f7cd4785b19
RDX: 0000000000000001 RSI: 0000000020001140 RDI: 0000000000000005
RBP: 00007f7cd47dff6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcc835d5af R14: 00007f7cd1cfb300 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:ffff88804323fc78 EFLAGS: 00010216
RAX: 00000000200026c0 RBX: ffff88804323fd60 RCX: ffffc90004dec000
RDX: 00000000040004d8 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 000000000000100a R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000100a R11: 0000000000000001 R12: ffff88801023d900
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8491de20
FS: 00007f7cd1cfb700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000080 CR3: 0000000016a74000 CR4: 0000000000350ee0
audit: type=1400 audit(1679918859.105:9): avc: denied { block_suspend } for pid=3979 comm="syz-executor.3" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=3982 'syz-executor.1'
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: 3993 Comm: syz-executor.5 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:ffff888042bb7c78 EFLAGS: 00010216
RAX: 00000000200026c0 RBX: ffff888042bb7d60 RCX: ffffc90005df4000
RDX: 00000000040004d8 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 000000000000100a R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000100a R11: 0000000000000001 R12: ffff88800f4b4c80
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8491de20
FS: 00007f7cd1cda700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7cd1cb8ff8 CR3: 0000000016a74000 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: 0033:0x7f7cd4785b19
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:00007f7cd1cda188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007f7cd4899020 RCX: 00007f7cd4785b19
RDX: 0000000000000001 RSI: 0000000020001140 RDI: 0000000000000005
RBP: 00007f7cd47dff6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcc835d5af R14: 00007f7cd1cda300 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:ffff88804323fc78 EFLAGS: 00010216
RAX: 00000000200026c0 RBX: ffff88804323fd60 RCX: ffffc90004dec000
RDX: 00000000040004d8 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 000000000000100a R08: 0000000000000007 R09: 0000000000000000
R10: 000000000000100a R11: 0000000000000001 R12: ffff88801023d900
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8491de20
FS: 00007f7cd1cda700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7cd1cb8ff8 CR3: 0000000016a74000 CR4: 0000000000350ee0
hrtimer: interrupt took 16611 ns
loop4: detected capacity change from 0 to 264192
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'.
loop4: detected capacity change from 0 to 264192
loop2: detected capacity change from 0 to 264192
FAT-fs (loop4): Unrecognized mount option "./file2" or missing value
tmpfs: Unknown parameter ''
tmpfs: Unknown parameter '.]s'
loop2: detected capacity change from 0 to 264192
tmpfs: Unknown parameter ''
loop4: detected capacity change from 0 to 264192
loop0: detected capacity change from 0 to 264192
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
tmpfs: Unknown parameter ''
loop2: detected capacity change from 0 to 264192
tmpfs: Unknown parameter ''
loop0: detected capacity change from 0 to 264192
tmpfs: Unknown parameter ''
loop0: detected capacity change from 0 to 264192
loop2: detected capacity change from 0 to 264192
tmpfs: Unknown parameter ''
loop4: detected capacity change from 0 to 264192
tmpfs: Unknown parameter ''
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
loop2: detected capacity change from 0 to 264192
tmpfs: Unknown parameter ''
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
netlink: 804 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 804 bytes leftover after parsing attributes in process `syz-executor.3'.
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
audit: type=1326 audit(1679918865.881:10): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4264 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f62a836ab19 code=0x0
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
loop3: detected capacity change from 0 to 40
syz-executor.3: attempt to access beyond end of device
loop3: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop3, logical block 10, lost async page write
----------------
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)