general protection fault, probably for non-canonical address 0xdffffc0004000020: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000020000100-0x0000000020000107]
CPU: 0 PID: 4157 Comm: syz-executor.7 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:ffff8880438a7c70 EFLAGS: 00010212
RAX: 0000000020000100 RBX: ffff8880438a7d58 RCX: ffffc90006c0b000
RDX: 0000000004000020 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 0000000000000089 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000089 R11: 0000000000000001 R12: ffff888016786a00
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840
FS: 00007f85ae7c5700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f85b1359b60 CR3: 000000004124a000 CR4: 0000000000350ef0
Call Trace:
vfs_readv+0xe5/0x160
do_readv+0x133/0x300
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f85b124fb19
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:00007f85ae7c5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013
RAX: ffffffffffffffda RBX: 00007f85b1362f60 RCX: 00007f85b124fb19
RDX: 0000000000000001 RSI: 0000000020000400 RDI: 0000000000000003
RBP: 00007f85b12a9f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc917d927f R14: 00007f85ae7c5300 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:ffff8880438a7c70 EFLAGS: 00010212
RAX: 0000000020000100 RBX: ffff8880438a7d58 RCX: ffffc90006c0b000
RDX: 0000000004000020 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 0000000000000089 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000089 R11: 0000000000000001 R12: ffff888016786a00
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840
FS: 00007f85ae7c5700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f85b1359b60 CR3: 000000004124a000 CR4: 0000000000350ef0
random: crng reseeded on system resumption
Restarting kernel threads ... done.
loop4: detected capacity change from 0 to 40
syz-executor.4: attempt to access beyond end of device
loop4: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop4, logical block 10, lost async page write
random: crng reseeded on system resumption
loop4: detected capacity change from 0 to 40
Restarting kernel threads ... done.
random: crng reseeded on system resumption
syz-executor.4: attempt to access beyond end of device
loop4: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop4, logical block 10, lost async page write
Restarting kernel threads ... done.
loop4: detected capacity change from 0 to 40
Restarting kernel threads ... done.
blktrace: Concurrent blktraces are not allowed on sg0
syz-executor.4: attempt to access beyond end of device
loop4: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop4, logical block 10, lost async page write
loop4: detected capacity change from 0 to 40
syz-executor.4: attempt to access beyond end of device
loop4: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop4, logical block 10, lost async page write
blktrace: Concurrent blktraces are not allowed on sg0
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'.
blktrace: Concurrent blktraces are not allowed on sg0
blktrace: Concurrent blktraces are not allowed on sg0
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'.
audit: type=1400 audit(1679920194.660:11): avc: denied { write } for pid=4347 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
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
audit: type=1400 audit(1679920195.003:12): avc: denied { read } for pid=4394 comm="syz-executor.5" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
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
loop7: detected capacity change from 0 to 8
loop2: detected capacity change from 0 to 40
loop2: detected capacity change from 0 to 40
loop2: detected capacity change from 0 to 40
loop2: detected capacity change from 0 to 40
FAT-fs (loop7): bogus number of reserved sectors
FAT-fs (loop7): Can't find a valid FAT filesystem
FAT-fs (loop7): bogus number of reserved sectors
FAT-fs (loop7): Can't find a valid FAT filesystem
=======================================================
WARNING: The mand mount option has been deprecated and
and is ignored by this kernel. Remove the mand
option from the mount to silence this warning.
=======================================================
EXT4-fs (loop6): VFS: Can't find ext4 filesystem
FAT-fs (loop5): bogus number of reserved sectors
FAT-fs (loop5): Can't find a valid FAT filesystem
EXT4-fs (loop6): VFS: Can't find ext4 filesystem
FAT-fs (loop5): bogus number of reserved sectors
FAT-fs (loop5): Can't find a valid FAT filesystem
EXT4-fs (loop6): VFS: Can't find ext4 filesystem
FAT-fs (loop5): bogus number of reserved sectors
FAT-fs (loop5): Can't find a valid FAT filesystem
EXT4-fs (loop6): VFS: Can't find ext4 filesystem
general protection fault, probably for non-canonical address 0xdffffc0004000028: 0000 [#2] PREEMPT SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000020000140-0x0000000020000147]
CPU: 0 PID: 4582 Comm: syz-executor.2 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:ffff8880446a7c78 EFLAGS: 00010216
RAX: 0000000020000140 RBX: ffff8880446a7d60 RCX: ffffc900007d9000
RDX: 0000000004000028 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 0000000000001000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000001 R12: ffff88800c9b7180
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8491c9e0
FS: 00007f00da12c700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
FAT-fs (loop5): bogus number of reserved sectors
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f186a1be000 CR3: 000000000e2b0000 CR4: 0000000000350ef0
FAT-fs (loop5): Can't find a valid FAT filesystem
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
vfs_readv+0xe5/0x160
__x64_sys_preadv+0x233/0x310
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f00dcbb6b19
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:00007f00da12c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007f00dccc9f60 RCX: 00007f00dcbb6b19
RDX: 0000000000000001 RSI: 0000000020001140 RDI: 0000000000000004
RBP: 00007f00dcc10f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd68f65d0f R14: 00007f00da12c300 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:ffff8880438a7c70 EFLAGS: 00010212
RAX: 0000000020000100 RBX: ffff8880438a7d58 RCX: ffffc90006c0b000
RDX: 0000000004000020 RSI: ffffffff81855c98 RDI: 0000000000000007
RBP: 0000000000000089 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000089 R11: 0000000000000001 R12: ffff888016786a00
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff848cb840
FS: 00007f00da12c700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f186a1be000 CR3: 000000000e2b0000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
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)