syz_tun: refused to change device tx_queue_len
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.3 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 0 PID: 12405 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1150
Modules linked in:
CPU: 0 PID: 12405 Comm: syz-executor.3 Not tainted 6.2.0-rc1-next-20221226 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2bf/0x1150
Code: 5d 41 5e 41 5f e9 a5 9f 2f 02 e8 9c a3 37 ff be 79 02 00 00 48 c7 c7 80 cb 9e 84 e8 6b 18 5b ff e9 48 fe ff ff e8 81 a3 37 ff <0f> 0b 45 31 f6 eb 87 e8 75 a3 37 ff 31 ff 89 ee e8 3c 9f 37 ff 40
RSP: 0018:ffff88803993f5e8 EFLAGS: 00010212
RAX: 00000000000050c3 RBX: 0000000000000000 RCX: ffffc90011f3f000
RDX: 0000000000040000 RSI: ffffffff821139ff RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88803993f818
R13: ffffea000128a000 R14: 0000000000001000 R15: ffff88803993f818
FS:  00007f7d94eac700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000f000 CR3: 0000000046cd2000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
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
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 12378 Comm: syz-executor.7 Not tainted 6.2.0-rc1-next-20221226 #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
 prepare_alloc_pages+0x178/0x500
 __alloc_pages+0x149/0x500
 alloc_pages+0x1a0/0x260
 filemap_alloc_folio+0x363/0x400
 __filemap_get_folio+0x32c/0xc90
 sg_write.part.0+0x698/0xa90
 pagecache_get_page+0x2e/0x130
 ext4_da_write_begin+0x328/0x9a0
 generic_perform_write+0x25a/0x580
 ext4_buffered_write_iter+0x164/0x460
 ext4_file_write_iter+0x3ff/0x1930
 vfs_write+0x9c7/0xd90
 ksys_write+0x12b/0x260
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f37f019ab19
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:00007f37ed710188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f37f02adf60 RCX: 00007f37f019ab19
RDX: 00000000000292e9 RSI: 0000000020000080 RDI: 0000000000000006
RBP: 00007f37ed7101d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffffae6bacf R14: 00007f37ed710300 R15: 0000000000022000
 </TASK>
 sg_write+0x88/0xe0
 vfs_write+0x2cf/0xd90
 ksys_write+0x12b/0x260
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f7d97936b19
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:00007f7d94eac188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f7d97a49f60 RCX: 00007f7d97936b19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007f7d97990f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffed86698cf R14: 00007f7d94eac300 R15: 0000000000022000
 </TASK>
irq event stamp: 12507
hardirqs last  enabled at (12579): [<ffffffff812dcdd8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (12648): [<ffffffff843e931f>] sysvec_apic_timer_interrupt+0xf/0xc0
softirqs last  enabled at (2424): [<ffffffff8118087b>] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (2273): [<ffffffff8118087b>] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=12406 comm=syz-executor.3
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.3 not setting count and/or reply_len properly
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=12406 comm=syz-executor.3