sg_write: data in/out 67/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.4 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5965 at lib/iov_iter.c:376 _copy_from_iter+0x2bf/0x1200
Modules linked in:
CPU: 0 PID: 5965 Comm: syz-executor.4 Not tainted 6.3.0-rc6-next-20230411 #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 60 35 02 e8 5c 74 36 ff be 7c 01 00 00 48 c7 c7 a0 cd 9e 84 e8 4b 7f 5a ff e9 48 fe ff ff e8 41 74 36 ff <0f> 0b 45 31 f6 eb 87 e8 35 74 36 ff 31 ff 89 ee e8 6c 6f 36 ff 40
RSP: 0018:ffff888043b67608 EFLAGS: 00010202
RAX: 0000000000000de0 RBX: 0000000000000000 RCX: ffffc90002de8000
RDX: 0000000000040000 RSI: ffffffff8215430f RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888043b67838
R13: ffffea00005c4400 R14: 00000000000000fb R15: ffff888043b67838
FS: 00007f6ba6ea8700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdf3c4cfe8 CR3: 000000000cb28000 CR4: 0000000000350ef0
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: 0033:0x7f6ba9932b19
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:00007f6ba6ea8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6ba9a45f60 RCX: 00007f6ba9932b19
RDX: 0000000000000125 RSI: 0000000020000400 RDI: 0000000000000003
RBP: 00007f6ba998cf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff0c7f38ff R14: 00007f6ba6ea8300 R15: 0000000000022000
irq event stamp: 897
hardirqs last enabled at (909): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (918): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (438): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (403): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 5971 Comm: syz-executor.6 Tainted: G W 6.3.0-rc6-next-20230411 #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
should_failslab+0x9/0x20
__kmem_cache_alloc_node+0x5b/0x310
__kmalloc+0x4a/0x160
__register_sysctl_table+0xc37/0x14f0
setup_userns_sysctls+0xc6/0x190
create_user_ns+0x985/0xdf0
copy_creds+0x548/0xbd0
copy_process+0xdb7/0x7330
kernel_clone+0xeb/0x7d0
__do_sys_clone3+0x1d5/0x2e0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f2c086a2b19
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:00007f2c05c18188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f2c087b5f60 RCX: 00007f2c086a2b19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000380
RBP: 00007f2c05c181d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffdf35002cf R14: 00007f2c05c18300 R15: 0000000000022000
sysctl could not get directory: /user -12
CPU: 0 PID: 5971 Comm: syz-executor.6 Tainted: G W 6.3.0-rc6-next-20230411 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xc1/0xf0
__register_sysctl_table+0x916/0x14f0
setup_userns_sysctls+0xc6/0x190
create_user_ns+0x985/0xdf0
copy_creds+0x548/0xbd0
copy_process+0xdb7/0x7330
kernel_clone+0xeb/0x7d0
__do_sys_clone3+0x1d5/0x2e0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f2c086a2b19
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:00007f2c05c18188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f2c087b5f60 RCX: 00007f2c086a2b19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000380
RBP: 00007f2c05c181d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffdf35002cf R14: 00007f2c05c18300 R15: 0000000000022000