sg_write: data in/out 3548/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.7 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4188 at lib/iov_iter.c:376 _copy_from_iter+0x2bf/0x1200
Modules linked in:
CPU: 1 PID: 4188 Comm: syz-executor.7 Not tainted 6.3.0-rc5-next-20230403 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2bf/0x1200
Code: 5d 41 5e 41 5f e9 55 bb 34 02 e8 bc 78 36 ff be 7c 01 00 00 48 c7 c7 40 d0 9e 84 e8 7b 82 5a ff e9 48 fe ff ff e8 a1 78 36 ff <0f> 0b 45 31 f6 eb 87 e8 95 78 36 ff 31 ff 89 ee e8 cc 73 36 ff 40
RSP: 0018:ffff88804313f608 EFLAGS: 00010212
RAX: 000000000000136f RBX: 0000000000000000 RCX: ffffc9000ae2e000
RDX: 0000000000040000 RSI: ffffffff821539cf RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804313f838
R13: ffffea00010ce400 R14: 0000000000000ddc R15: ffff88804313f838
FS: 00007f4e6add9700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e6add8d58 CR3: 000000000c5a8000 CR4: 0000000000350ee0
Call Trace:
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_write.part.0+0x698/0xac0
sg_write+0x8d/0xe0
vfs_write+0x2d8/0xdc0
ksys_write+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f4e6d884b19
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:00007f4e6add9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f4e6d998020 RCX: 00007f4e6d884b19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000003
RBP: 00007f4e6d8def6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe4e78d5bf R14: 00007f4e6add9300 R15: 0000000000022000
irq event stamp: 1083
hardirqs last enabled at (1095): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (1106): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (402): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (341): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
loop5: detected capacity change from 0 to 256
isofs_fill_super: bread failed, dev=loop5, iso_blknum=64, block=128
loop5: detected capacity change from 0 to 256
isofs_fill_super: bread failed, dev=loop5, iso_blknum=64, block=128