------------[ cut here ]------------
WARNING: CPU: 0 PID: 35513 at drivers/scsi/scsi_lib.c:1024 scsi_alloc_sgtables+0x9aa/0xbb0
Modules linked in:
CPU: 0 PID: 35513 Comm: syz-executor.4 Not tainted 5.18.0-rc2-next-20220414 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:scsi_alloc_sgtables+0x9aa/0xbb0
Code: 48 c1 e8 03 80 3c 10 00 0f 85 57 01 00 00 48 c7 c0 00 00 00 80 48 2b 05 b4 8f 38 02 48 89 04 24 e9 66 fd ff ff e8 66 50 8b fe <0f> 0b 41 bc 0a 00 00 00 e9 83 fa ff ff 41 bc 09 00 00 00 e9 78 fa
RSP: 0018:ffff88801c1cf578 EFLAGS: 00010212
RAX: 00000000000004ce RBX: ffff88800df113c8 RCX: ffffc90007a00000
RDX: 0000000000040000 RSI: ffffffff82b8d5fa RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000000
R10: ffffffff82b8d58d R11: 0000000000000000 R12: ffff88800df112dc
R13: ffff88800c9b4000 R14: ffff88800df112c0 R15: 0000000000000001
FS: 00007f6d1374a700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001600 CR3: 0000000026528000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000600
Call Trace:
scsi_queue_rq+0x26dc/0x31f0
blk_mq_dispatch_rq_list+0x6c2/0x21d0
__blk_mq_sched_dispatch_requests+0x206/0x3e0
blk_mq_sched_dispatch_requests+0x101/0x180
__blk_mq_run_hw_queue+0xff/0x350
__blk_mq_delay_run_hw_queue+0x58a/0x670
blk_mq_run_hw_queue+0x321/0x4a0
blk_mq_sched_insert_request+0x2e5/0x3e0
blk_execute_rq+0xcc/0x340
sg_io+0x675/0xfe0
scsi_ioctl+0x52b/0x1540
sr_block_ioctl+0x1f0/0x240
blkdev_ioctl+0x356/0x7f0
__x64_sys_ioctl+0x196/0x210
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6d161d4b19
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:00007f6d1374a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6d162e7f60 RCX: 00007f6d161d4b19
RDX: 00000000200003c0 RSI: 0000000000002285 RDI: 0000000000000003
RBP: 00007f6d1622ef6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc37711bcf R14: 00007f6d1374a300 R15: 0000000000022000
irq event stamp: 1045
hardirqs last enabled at (1055): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (1064): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (920): [] __irq_exit_rcu+0x113/0x170
softirqs last disabled at (915): [] __irq_exit_rcu+0x113/0x170
---[ end trace 0000000000000000 ]---
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 35574 Comm: syz-executor.2 Tainted: G W 5.18.0-rc2-next-20220414 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
dump_stack_lvl+0x8b/0xb3
should_fail.cold+0x5/0xa
prepare_alloc_pages+0x17b/0x500
__alloc_pages+0x131/0x4e0
alloc_pages_vma+0xde/0x500
__handle_mm_fault+0x102c/0x3600
handle_mm_fault+0x2e6/0xa20
do_user_addr_fault+0x54a/0x12a0
exc_page_fault+0xa2/0x1a0
asm_exc_page_fault+0x1e/0x30
RIP: 0010:copy_user_generic_string+0x2c/0x40
Code: cb 83 fa 08 72 27 89 f9 83 e1 07 74 15 83 e9 08 f7 d9 29 ca 8a 06 88 07 48 ff c6 48 ff c7 ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01
RSP: 0018:ffff888042e0fa00 EFLAGS: 00050246
RAX: 0000000000000001 RBX: 0000000000001000 RCX: 0000000000000200
RDX: 0000000000000000 RSI: ffff888049d98000 RDI: 0000000020023000
RBP: 0000000020023000 R08: 0000000000000000 R09: ffff888049d98fff
R10: ffffed10093b31ff R11: 0000000000000001 R12: ffff888049d98000
R13: 00007fffffffe000 R14: ffff888042e0fd68 R15: dffffc0000000000
copyout.part.0+0xd1/0x100
copy_page_to_iter+0x462/0x1190
filemap_read+0x580/0xba0
generic_file_read_iter+0x3c9/0x530
ext4_file_read_iter+0x184/0x3f0
new_sync_read+0x38a/0x5f0
vfs_read+0x490/0x5d0
ksys_read+0x127/0x250
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f106bf0bb19
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:00007f1069481188 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f106c01ef60 RCX: 00007f106bf0bb19
RDX: 00000000fffffdef RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f10694811d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffea55d36bf R14: 00007f1069481300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: cb lret
1: 83 fa 08 cmp $0x8,%edx
4: 72 27 jb 0x2d
6: 89 f9 mov %edi,%ecx
8: 83 e1 07 and $0x7,%ecx
b: 74 15 je 0x22
d: 83 e9 08 sub $0x8,%ecx
10: f7 d9 neg %ecx
12: 29 ca sub %ecx,%edx
14: 8a 06 mov (%rsi),%al
16: 88 07 mov %al,(%rdi)
18: 48 ff c6 inc %rsi
1b: 48 ff c7 inc %rdi
1e: ff c9 dec %ecx
20: 75 f2 jne 0x14
22: 89 d1 mov %edx,%ecx
24: c1 e9 03 shr $0x3,%ecx
27: 83 e2 07 and $0x7,%edx
* 2a: f3 48 a5 rep movsq %ds:(%rsi),%es:(%rdi) <-- trapping instruction
2d: 89 d1 mov %edx,%ecx
2f: f3 a4 rep movsb %ds:(%rsi),%es:(%rdi)
31: 31 c0 xor %eax,%eax
33: 0f 01 ca clac
36: c3 retq
37: 8d 0c ca lea (%rdx,%rcx,8),%ecx
3a: 89 ca mov %ecx,%edx
3c: eb 20 jmp 0x5e
3e: 0f .byte 0xf
3f: 01 .byte 0x1