loop1: detected capacity change from 0 to 40
sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in;
program syz-executor.5 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5910 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1170
Modules linked in:
CPU: 1 PID: 5910 Comm: syz-executor.5 Not tainted 6.2.0-rc5-next-20230123 #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 35 4a 33 02 e8 7c c3 37 ff be 79 02 00 00 48 c7 c7 80 e4 9e 84 e8 5b 5f 5b ff e9 48 fe ff ff e8 61 c3 37 ff <0f> 0b 45 31 f6 eb 87 e8 55 c3 37 ff 31 ff 89 ee e8 1c bf 37 ff 40
RSP: 0018:ffff88803b767608 EFLAGS: 00010216
RAX: 0000000000000e12 RBX: 0000000000000000 RCX: ffffc90002210000
RDX: 0000000000040000 RSI: ffffffff8211b5af RDI: 0000000000000001
RBP: 0000000000000390 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88803b767838
R13: ffffea000111ec00 R14: 0000000000000390 R15: ffff88803b767838
FS: 00007fbf13c5e700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c83c000 CR3: 00000000424a0000 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: 0033:0x7fbf166e8b19
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:00007fbf13c5e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fbf167fbf60 RCX: 00007fbf166e8b19
RDX: 000000000000002b RSI: 0000000020000380 RDI: 0000000000000007
RBP: 00007fbf16742f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffab8b434f R14: 00007fbf13c5e300 R15: 0000000000022000
irq event stamp: 7095
hardirqs last enabled at (7127): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (7170): [] sysvec_apic_timer_interrupt+0xf/0xc0
softirqs last enabled at (4684): [] irq_exit_rcu+0x11f/0x190
softirqs last disabled at (4145): [] irq_exit_rcu+0x11f/0x190
---[ end trace 0000000000000000 ]---
tmpfs: Bad value for 'mpol'
tmpfs: Bad value for 'mpol'
audit: type=1400 audit(1674474157.893:9): avc: denied { block_suspend } for pid=5964 comm="syz-executor.3" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
loop7: detected capacity change from 0 to 264192
FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
SELinux: Context system_u:object_r:hald_acl_exec_t:s0 is not valid (left unmapped).
loop2: detected capacity change from 0 to 40
loop6: detected capacity change from 0 to 40
syz-executor.2: attempt to access beyond end of device
loop2: rw=2049, sector=92, nr_sectors = 4 limit=40
loop7: detected capacity change from 0 to 264192
loop2: detected capacity change from 0 to 40
syz-executor.2: attempt to access beyond end of device
loop2: rw=2049, sector=92, nr_sectors = 4 limit=40
FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
syz-executor.6: attempt to access beyond end of device
loop6: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop6, 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=92, nr_sectors = 4 limit=40
audit: type=1400 audit(1674474161.178:10): avc: denied { write } for pid=6090 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
loop6: detected capacity change from 0 to 40
loop7: detected capacity change from 0 to 264192
FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
syz-executor.6: attempt to access beyond end of device
loop6: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop6, logical block 10, lost async page write
syz-executor.1 (6086) used greatest stack depth: 23640 bytes left
loop2: detected capacity change from 0 to 40
loop6: detected capacity change from 0 to 40
syz-executor.2: attempt to access beyond end of device
loop2: rw=2049, sector=92, nr_sectors = 4 limit=40
random: crng reseeded on system resumption
Restarting kernel threads ... done.
random: crng reseeded on system resumption
syz-executor.6: attempt to access beyond end of device
loop6: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop6, logical block 10, lost async page write
loop6: detected capacity change from 0 to 40
FAT-fs (loop6): Unrecognized mount option "./file0" or missing value
random: crng reseeded on system resumption
Restarting kernel threads ... done.
syz-executor.7 (6133) used greatest stack depth: 23448 bytes left
random: crng reseeded on system resumption
Restarting kernel threads ... done.
random: crng reseeded on system resumption
Restarting kernel threads ... done.
random: crng reseeded on system resumption
random: crng reseeded on system resumption
Restarting kernel threads ... done.
random: crng reseeded on system resumption
audit: type=1326 audit(1674474166.756:11): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6270 comm="syz-executor.3" exe="/syz-executor.3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f9deac6eb19 code=0x0
random: crng reseeded on system resumption
Restarting kernel threads ... done.
random: crng reseeded on system resumption
Restarting kernel threads ... done.
random: crng reseeded on system resumption
Restarting kernel threads ... done.