sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.7 not setting count and/or reply_len properly
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WARNING: CPU: 1 PID: 8150 at lib/iov_iter.c:364 _copy_from_iter+0x2b2/0x1140
Modules linked in:
CPU: 1 PID: 8150 Comm: syz-executor.7 Not tainted 6.2.0-rc7-next-20230210 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2b2/0x1140
Code: 5d 41 5e 41 5f e9 d2 5f 33 02 e8 69 13 36 ff be 70 01 00 00 48 c7 c7 a0 cc 9e 84 e8 c8 e8 59 ff e9 51 fe ff ff e8 4e 13 36 ff <0f> 0b 45 31 f6 eb 87 e8 42 13 36 ff 31 ff 89 ee e8 a9 0e 36 ff 40
RSP: 0018:ffff88804273f608 EFLAGS: 00010216
RAX: 00000000000050e8 RBX: 0000000000000000 RCX: ffffc90004dfa000
RDX: 0000000000040000 RSI: ffffffff82155c52 RDI: 0000000000000001
RBP: 0000000000001000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88804273f838 R14: 0000000000001000 R15: ffff88804273f838
FS: 00007f0542f92700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31e21000 CR3: 00000000465ac000 CR4: 0000000000350ee0
DR0: 0000000020000100 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
copy_page_from_iter+0x251/0x430
blk_rq_map_user_iov+0xb41/0x16c0
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+0x2cf/0xdc0
ksys_write+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f0545a1cb19
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:00007f0542f92188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f0545b2ff60 RCX: 00007f0545a1cb19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000004
RBP: 00007f0545a76f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff54dc8c1f R14: 00007f0542f92300 R15: 0000000000022000
irq event stamp: 1161
hardirqs last enabled at (1171): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (1182): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (1050): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (1029): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
loop4: detected capacity change from 0 to 4096
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none.
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8150 comm=syz-executor.7
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.