sg_write: data in/out 209/247 bytes for SCSI command 0xc0-- guessing data in;
program syz-executor.3 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 17147 at lib/iov_iter.c:376 _copy_from_iter+0x2bf/0x1200
Modules linked in:
CPU: 1 PID: 17147 Comm: syz-executor.3 Not tainted 6.3.0-rc5-next-20230405 #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 d5 16 35 02 e8 7c 68 36 ff be 7c 01 00 00 48 c7 c7 60 ce 9e 84 e8 9b 73 5a ff e9 48 fe ff ff e8 61 68 36 ff <0f> 0b 45 31 f6 eb 87 e8 55 68 36 ff 31 ff 89 ee e8 8c 63 36 ff 40
RSP: 0018:ffff888044f2f608 EFLAGS: 00010216
RAX: 0000000000000e2f RBX: 0000000000000000 RCX: ffffc900017ff000
RDX: 0000000000040000 RSI: ffffffff82154d4f RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888044f2f838
R13: ffffea00010fde00 R14: 00000000000000f7 R15: ffff888044f2f838
FS: 00007fe0729f8700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff32e6ad6e8 CR3: 00000000444b4000 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: 0033:0x7fe075482b19
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:00007fe0729f8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe075595f60 RCX: 00007fe075482b19
RDX: 0000000000000125 RSI: 0000000020000400 RDI: 0000000000000003
RBP: 00007fe0754dcf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc0099036f R14: 00007fe0729f8300 R15: 0000000000022000
irq event stamp: 1559
hardirqs last enabled at (1571): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (1582): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (1260): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (1175): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
sg_write: data in/out 808464396/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.5 not setting count and/or reply_len properly
sg_write: data in/out 209/247 bytes for SCSI command 0xc0-- guessing data in;
program syz-executor.3 not setting count and/or reply_len properly
sg_write: data in/out 808464396/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.5 not setting count and/or reply_len properly
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 17296 Comm: syz-executor.1 Tainted: G W 6.3.0-rc5-next-20230405 #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
_copy_to_user+0x2e/0x150
simple_read_from_buffer+0xd0/0x170
proc_fail_nth_read+0x19c/0x230
vfs_read+0x260/0x930
ksys_read+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7ff4694ae69c
Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 fc ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 2f fd ff ff 48
RSP: 002b:00007ff466a71170 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000048 RCX: 00007ff4694ae69c
RDX: 000000000000000f RSI: 00007ff466a711e0 RDI: 0000000000000005
RBP: 00007ff466a711d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fff2195faef R14: 00007ff466a71300 R15: 0000000000022000
sg_write: data in/out 219/247 bytes for SCSI command 0xc0-- guessing data in;
program syz-executor.3 not setting count and/or reply_len properly
sg_write: data in/out 219/247 bytes for SCSI command 0xc0-- guessing data in;
program syz-executor.3 not setting count and/or reply_len properly