sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.2 not setting count and/or reply_len properly
syz_tun: refused to change device tx_queue_len
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5827 at lib/iov_iter.c:629 _copy_from_iter+0x2f1/0x1130
Modules linked in:
CPU: 1 PID: 5827 Comm: syz-executor.2 Not tainted 6.1.0-next-20221214 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2f1/0x1130
Code: 37 ff 44 89 f3 e9 2f ff ff ff e8 ea 3a 37 ff be 79 02 00 00 48 c7 c7 80 c5 9e 84 e8 19 b7 5a ff e9 13 fe ff ff e8 cf 3a 37 ff <0f> 0b 45 31 f6 e9 77 ff ff ff e8 c0 3a 37 ff 31 ff 89 ee e8 87 36
RSP: 0018:ffff8880474e75e8 EFLAGS: 00010212
RAX: 0000000000006539 RBX: 0000000000000000 RCX: ffffc900013d9000
RDX: 0000000000040000 RSI: ffffffff8211ef01 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000001000
R13: ffffea0000f9be00 R14: 0000000000001000 R15: ffff8880474e7818
FS: 00007f7e10d6a700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd886f5b720 CR3: 000000004611c000 CR4: 0000000000350ee0
Call Trace:
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
sg_write.part.0+0x706/0xb20
sg_write+0x88/0xe0
vfs_write+0x358/0xe40
ksys_write+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f7e137f4b19
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:00007f7e10d6a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f7e13907f60 RCX: 00007f7e137f4b19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007f7e1384ef6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff7b05edbf R14: 00007f7e10d6a300 R15: 0000000000022000
irq event stamp: 6335
hardirqs last enabled at (6381): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (6436): [] sysvec_apic_timer_interrupt+0xf/0xc0
softirqs last enabled at (1784): [] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (1469): [] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
loop1: detected capacity change from 0 to 16383
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
netlink: 100 bytes leftover after parsing attributes in process `syz-executor.1'.
loop1: detected capacity change from 0 to 16383
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5847 comm=syz-executor.2
audit: type=1400 audit(1671127556.655:11): avc: denied { read } for pid=5823 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
netlink: 100 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 100 bytes leftover after parsing attributes in process `syz-executor.5'.
loop5: detected capacity change from 0 to 40
FAT-fs (loop5): Unrecognized mount option "01777777777777777777777" or missing value
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5854 comm=syz-executor.2
netlink: 100 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 100 bytes leftover after parsing attributes in process `syz-executor.5'.
loop5: detected capacity change from 0 to 40
FAT-fs (loop5): Unrecognized mount option "01777777777777777777777" or missing value
syz_tun: refused to change device tx_queue_len
syz-executor.5 (5888) used greatest stack depth: 23616 bytes left