loop2: detected capacity change from 0 to 40
------------[ cut here ]------------
WARNING: CPU: 0 PID: 15062 at lib/iov_iter.c:385 _copy_from_iter+0x2f1/0x1320
Modules linked in:
CPU: 0 PID: 15062 Comm: syz-executor.3 Not tainted 6.4.0-rc5-next-20230609 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2f1/0x1320
Code: b2 ff ff 89 c3 e9 1f ff ff ff e8 ea f0 35 ff be 85 01 00 00 48 c7 c7 e0 f4 9e 84 e8 c9 4f 5a ff e9 13 fe ff ff e8 cf f0 35 ff <0f> 0b 45 31 f6 e9 67 ff ff ff e8 c0 f0 35 ff 31 ff 89 ee e8 f7 eb
RSP: 0018:ffff88801687f6b0 EFLAGS: 00010212
RAX: 00000000000001e6 RBX: 0000000000000000 RCX: ffffc90004e08000
RDX: 0000000000040000 RSI: ffffffff82161ac1 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 000000000000009b
R13: ffffea00010d0600 R14: 000000000000009b R15: ffff88801687f8e0
FS:  00007f69ab494700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c322000 CR3: 0000000044c28000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 copy_page_from_iter+0xe3/0x180
 blk_rq_map_user_iov+0xb39/0x16c0
 blk_rq_map_user_io+0x1d1/0x200
 sg_common_write.constprop.0+0xd8d/0x15f0
 sg_new_write.isra.0+0x523/0x770
 sg_ioctl+0x9fb/0x2690
 __x64_sys_ioctl+0x1a4/0x210
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f69adf1eb19
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:00007f69ab494188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f69ae031f60 RCX: 00007f69adf1eb19
RDX: 0000000020000200 RSI: 0000000000002285 RDI: 0000000000000003
RBP: 00007f69adf78f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc1880482f R14: 00007f69ab494300 R15: 0000000000022000
 </TASK>
irq event stamp: 1103
hardirqs last  enabled at (1113): [<ffffffff812fec38>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1124): [<ffffffff812fec1d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (744): [<ffffffff8118dd93>] irq_exit_rcu+0x93/0xc0
softirqs last disabled at (739): [<ffffffff8118dd93>] irq_exit_rcu+0x93/0xc0
---[ end trace 0000000000000000 ]---
audit: type=1326 audit(1686330612.028:253): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=15067 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa11e3f3b19 code=0x0
program syz-executor.3 is using a deprecated SCSI ioctl, please convert it to SG_IO
audit: type=1326 audit(1686330612.833:254): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=15067 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa11e3f3b19 code=0x0