loop3: detected capacity change from 0 to 10
general protection fault, probably for non-canonical address 0xdffffc0017090b4a: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x00000000b8485a50-0x00000000b8485a57]
CPU: 1 PID: 8762 Comm: syz-executor.3 Not tainted 6.4.0-next-20230703 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:init_module_from_file+0x1c1/0x6b0
Code: 0f 84 c4 01 00 00 e8 5e 36 12 00 4d 89 e7 49 83 ef 08 74 61 e8 50 36 12 00 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 5d 04 00 00 4d 3b 2f 0f 84 ae 00 00 00 e8 27 36
RSP: 0018:ffff8880412cfd28 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 000000000000003b RCX: ffffc9000bc25000
RDX: 0000000017090b4a RSI: ffffffff813a30d0 RDI: ffffffff8153a222
RBP: ffff8880094ae280 R08: 0000000000000001 R09: ffffed1008259f97
R10: 0000000000000003 R11: 0000000000000001 R12: ffff88804226fe28
R13: ffff888008937740 R14: ffffffff87b7be78 R15: 00000000b8485a50
FS: 00007f114df1b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f114defa718 CR3: 000000004139c000 CR4: 0000000000350ee0
Call Trace:
__x64_sys_finit_module+0xee/0x160
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f11509c6b19
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:00007f114df1b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00007f1150ada020 RCX: 00007f11509c6b19
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000006
RBP: 00007f1150a20f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe2f51a13f R14: 00007f114df1b300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:init_module_from_file+0x1c1/0x6b0
Code: 0f 84 c4 01 00 00 e8 5e 36 12 00 4d 89 e7 49 83 ef 08 74 61 e8 50 36 12 00 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 5d 04 00 00 4d 3b 2f 0f 84 ae 00 00 00 e8 27 36
RSP: 0018:ffff8880412cfd28 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 000000000000003b RCX: ffffc9000bc25000
RDX: 0000000017090b4a RSI: ffffffff813a30d0 RDI: ffffffff8153a222
RBP: ffff8880094ae280 R08: 0000000000000001 R09: ffffed1008259f97
R10: 0000000000000003 R11: 0000000000000001 R12: ffff88804226fe28
R13: ffff888008937740 R14: ffffffff87b7be78 R15: 00000000b8485a50
FS: 00007f114df1b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f114defa718 CR3: 000000004139c000 CR4: 0000000000350ee0
note: syz-executor.3[8762] exited with preempt_count 1
loop6: detected capacity change from 0 to 264192
FAT-fs (loop6): invalid media value (0x88)
FAT-fs (loop6): Can't find a valid FAT filesystem
loop2: detected capacity change from 0 to 10
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 8775 Comm: syz-executor.1 Tainted: G D 6.4.0-next-20230703 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xc1/0xf0
should_fail_ex+0x4b4/0x5b0
should_failslab+0x9/0x20
kmem_cache_alloc_lru+0x7a/0x680
loop3: detected capacity change from 0 to 10
__d_alloc+0x31/0x9c0
d_alloc_pseudo+0x1d/0x70
alloc_file_pseudo+0xd2/0x260
__shmem_file_setup+0x202/0x300
__do_sys_memfd_create+0x32b/0x940
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f128a48cb19
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:00007f1287a01f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f128a48cb19
RDX: 0000000000001400 RSI: 0000000000000000 RDI: 00007f128a4e60fb
RBP: 0000000000000002 R08: 0000000000000a00 R09: ffffffffffffffff
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 0000000000001400 R15: 0000000020000080
loop6: detected capacity change from 0 to 264192
FAT-fs (loop6): invalid media value (0x88)
FAT-fs (loop6): Can't find a valid FAT filesystem
loop3: detected capacity change from 0 to 10
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 8806 Comm: syz-executor.2 Tainted: G D 6.4.0-next-20230703 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xc1/0xf0
should_fail_ex+0x4b4/0x5b0
should_failslab+0x9/0x20
kmem_cache_alloc+0x62/0x370
__kernfs_new_node+0xd4/0x890
kernfs_new_node+0x97/0x120
__kernfs_create_file+0x55/0x350
sysfs_add_file_mode_ns+0x21c/0x440
internal_create_group+0x322/0xb00
loop_configure+0xce5/0x1910
lo_ioctl+0x934/0x19a0
blkdev_ioctl+0x2e4/0x750
__x64_sys_ioctl+0x1a4/0x210
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f298b0098d7
Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 a4 54 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 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:00007f298857ef48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f298b053970 RCX: 00007f298b0098d7
RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000007
RBP: 0000000000000007 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006
R13: 0000000000000006 R14: 0000000020000230 R15: 0000000000000002
loop2: detected capacity change from 0 to 10
----------------
Code disassembly (best guess):
0: 0f 84 c4 01 00 00 je 0x1ca
6: e8 5e 36 12 00 callq 0x123669
b: 4d 89 e7 mov %r12,%r15
e: 49 83 ef 08 sub $0x8,%r15
12: 74 61 je 0x75
14: e8 50 36 12 00 callq 0x123669
19: 4c 89 fa mov %r15,%rdx
1c: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
23: fc ff df
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 0f 85 5d 04 00 00 jne 0x491
34: 4d 3b 2f cmp (%r15),%r13
37: 0f 84 ae 00 00 00 je 0xeb
3d: e8 .byte 0xe8
3e: 27 (bad)
3f: 36 ss