sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
program syz-executor.7 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6974 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1170
Modules linked in:
CPU: 1 PID: 6974 Comm: syz-executor.7 Not tainted 6.2.0-rc4-next-20230120 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2bf/0x1170
Code: 5d 41 5e 41 5f e9 95 42 33 02 e8 cc cc 37 ff be 79 02 00 00 48 c7 c7 80 e3 9e 84 e8 3b 68 5b ff e9 48 fe ff ff e8 b1 cc 37 ff <0f> 0b 45 31 f6 eb 87 e8 a5 cc 37 ff 31 ff 89 ee e8 6c c8 37 ff 40
RSP: 0018:ffff888041197608 EFLAGS: 00010216
RAX: 0000000000000e1e RBX: 0000000000000000 RCX: ffffc90007c21000
RDX: 0000000000040000 RSI: ffffffff8211ac4f RDI: 0000000000000001
RBP: 0000000000000390 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888041197838
R13: ffffea000112ca00 R14: 0000000000000390 R15: ffff888041197838
FS: 00007efc97815700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9a6fa80ff8 CR3: 000000000fc20000 CR4: 0000000000350ee0
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+0x698/0xa90
sg_write+0x8d/0xe0
vfs_write+0x2cf/0xdd0
ksys_write+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7efc9a29fb19
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:00007efc97815188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007efc9a3b2f60 RCX: 00007efc9a29fb19
RDX: 000000000000002b RSI: 0000000020000380 RDI: 0000000000000008
RBP: 00007efc9a2f9f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffef5ee70ff R14: 00007efc97815300 R15: 0000000000022000
irq event stamp: 6485
hardirqs last enabled at (6495): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (6508): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (6420): [] irq_exit_rcu+0x11f/0x190
softirqs last disabled at (6399): [] irq_exit_rcu+0x11f/0x190
---[ end trace 0000000000000000 ]---
sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
program syz-executor.7 not setting count and/or reply_len properly
sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
program syz-executor.7 not setting count and/or reply_len properly
loop2: detected capacity change from 0 to 40
audit: type=1401 audit(1674216872.054:11): op=security_bounded_transition seresult=denied oldcontext=system_u:system_r:kernel_t:s0 newcontext=system_u:object_r:syslogd_var_lib_t:s0
syz-executor.2: attempt to access beyond end of device
loop2: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop2, logical block 10, lost async page write
loop5: detected capacity change from 0 to 40
loop0: detected capacity change from 0 to 40
loop2: detected capacity change from 0 to 40
syz-executor.5: attempt to access beyond end of device
loop5: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop5, logical block 10, lost async page write
syz-executor.0: attempt to access beyond end of device
loop0: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop0, logical block 10, lost async page write
loop5: detected capacity change from 0 to 40
syz-executor.5: attempt to access beyond end of device
loop5: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop5, logical block 10, lost async page write
syz-executor.2: attempt to access beyond end of device
loop2: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop2, logical block 10, lost async page write
loop0: detected capacity change from 0 to 40
loop5: detected capacity change from 0 to 40
syz-executor.5: attempt to access beyond end of device
loop5: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop5, logical block 10, lost async page write
syz-executor.0: attempt to access beyond end of device
loop0: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop0, logical block 10, lost async page write
loop2: detected capacity change from 0 to 40
loop0: detected capacity change from 0 to 40
syz-executor.2: attempt to access beyond end of device
loop2: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop2, logical block 10, lost async page write
syz-executor.0: attempt to access beyond end of device
loop0: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop0, logical block 10, lost async page write
loop2: detected capacity change from 0 to 40
syz-executor.2: attempt to access beyond end of device
loop2: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop2, logical block 10, lost async page write
device syz_tun entered promiscuous mode
device syz_tun left promiscuous mode
device syz_tun entered promiscuous mode
device syz_tun left promiscuous mode