loop1: detected capacity change from 0 to 40
sg_write: data in/out 210/245 bytes for SCSI command 0xa4-- guessing data in;
   program syz-executor.6 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6994 at lib/iov_iter.c:629 _copy_from_iter+0x2f1/0x1130
Modules linked in:
CPU: 0 PID: 6994 Comm: syz-executor.6 Not tainted 6.1.0-next-20221219 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2f1/0x1130
Code: 37 ff 44 89 f3 e9 2f ff ff ff e8 7a 13 37 ff be 79 02 00 00 48 c7 c7 80 c8 9e 84 e8 99 91 5a ff e9 13 fe ff ff e8 5f 13 37 ff <0f> 0b 45 31 f6 e9 77 ff ff ff e8 50 13 37 ff 31 ff 89 ee e8 17 0f
RSP: 0018:ffff8880486475e8 EFLAGS: 00010216
RAX: 00000000000025ee RBX: 0000000000000000 RCX: ffffc90003e1a000
RDX: 0000000000040000 RSI: ffffffff82121a51 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 00000000000000f5
R13: ffffea00003e4a00 R14: 00000000000000f5 R15: ffff888048647818
FS:  00007ff7b8821700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5ceba55028 CR3: 000000000c586000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 copy_page_from_iter+0xe3/0x180
 blk_rq_map_user_iov+0xb0c/0x1650
 blk_rq_map_user_io+0x1ee/0x220
 sg_common_write.constprop.0+0xd84/0x15e0
 sg_write.part.0+0x706/0xb20
 sg_write+0x88/0xe0
 vfs_write+0x358/0xe40
 ksys_write+0x12b/0x260
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7ff7bb2abb19
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:00007ff7b8821188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff7bb3bef60 RCX: 00007ff7bb2abb19
RDX: 0000000000000125 RSI: 0000000020000180 RDI: 0000000000000005
RBP: 00007ff7bb305f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcc920c0ef R14: 00007ff7b8821300 R15: 0000000000022000
 </TASK>
irq event stamp: 7071
hardirqs last  enabled at (7107): [<ffffffff8460144a>] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (7156): [<ffffffff8440522f>] sysvec_apic_timer_interrupt+0xf/0xc0
softirqs last  enabled at (2128): [<ffffffff81182e7b>] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (1945): [<ffffffff81182e7b>] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
audit: type=1400 audit(1671977466.472:11): avc:  denied  { tracepoint } for  pid=7005 comm="syz-executor.7" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
sg_write: data in/out 210/245 bytes for SCSI command 0xa4-- guessing data in;
   program syz-executor.6 not setting count and/or reply_len properly
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 7013 Comm: syz-executor.3 Tainted: G        W          6.1.0-next-20221219 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8f/0xb7
 should_fail_ex.cold+0x5/0xa
 should_failslab+0x9/0x20
 kmem_cache_alloc_lru+0x6b/0x760
 ext4_alloc_inode+0x28/0x680
 alloc_inode+0x63/0x240
 new_inode+0x25/0x1f0
 __ext4_new_inode+0x32f/0x55e0
 ext4_mkdir+0x33e/0xb20
 vfs_mkdir+0x495/0x740
 do_mkdirat+0x16e/0x2d0
 __x64_sys_mkdir+0xf6/0x150
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f2b99b0fc27
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 53 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:00007f2b97085fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2b99b0fc27
RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000020000180
RBP: 00007f2b97086040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000080
R13: 0000000020000180 R14: 00007f2b97086000 R15: 0000000020000040
 </TASK>
Process accounting resumed
Process accounting resumed
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