loop7: detected capacity change from 0 to 40
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.5 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5125 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1170
Modules linked in:
CPU: 0 PID: 5125 Comm: syz-executor.5 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:ffff8880146ef608 EFLAGS: 00010212
RAX: 0000000000006f62 RBX: 0000000000000000 RCX: ffffc90005a20000
RDX: 0000000000040000 RSI: ffffffff8211ac4f RDI: 0000000000000001
RBP: 0000000000001000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880146ef838
R13: ffffea0001114a00 R14: 0000000000001000 R15: ffff8880146ef838
FS: 00007f72ea750700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c522000 CR3: 0000000016c78000 CR4: 0000000000350ef0
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: 0033:0x7f72ed1dab19
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:00007f72ea750188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f72ed2edf60 RCX: 00007f72ed1dab19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007f72ed234f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff7285987f R14: 00007f72ea750300 R15: 0000000000022000
irq event stamp: 10371
hardirqs last enabled at (10405): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (10446): [] sysvec_apic_timer_interrupt+0xf/0xc0
softirqs last enabled at (8466): [] irq_exit_rcu+0x11f/0x190
softirqs last disabled at (8125): [] irq_exit_rcu+0x11f/0x190
---[ end trace 0000000000000000 ]---
audit: type=1400 audit(1674354166.944:13): avc: denied { relabelto } for pid=5115 comm="syz-executor.7" name="file1" dev="sda" ino=15981 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:mouse_device_t:s0 tclass=file permissive=1
audit: type=1400 audit(1674354166.990:14): avc: denied { getattr } for pid=5115 comm="syz-executor.7" path="/syzkaller-testdir535055848/syzkaller.P39RA8/27/file0/file1" dev="sda" ino=15981 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:mouse_device_t:s0 tclass=file permissive=1
audit: type=1400 audit(1674354166.994:15): avc: denied { read write } for pid=5115 comm="syz-executor.7" name="file1" dev="sda" ino=15981 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:mouse_device_t:s0 tclass=file permissive=1
audit: type=1400 audit(1674354166.994:16): avc: denied { open } for pid=5115 comm="syz-executor.7" path="/syzkaller-testdir535055848/syzkaller.P39RA8/27/file0/file1" dev="sda" ino=15981 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:mouse_device_t:s0 tclass=file permissive=1
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.5 not setting count and/or reply_len properly
loop3: detected capacity change from 0 to 7
audit: type=1400 audit(1674354167.474:17): avc: denied { unlink } for pid=3864 comm="syz-executor.7" name="file1" dev="sda" ino=15981 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:mouse_device_t:s0 tclass=file permissive=1
FAT-fs (loop2): bogus number of reserved sectors
FAT-fs (loop2): Can't find a valid FAT filesystem
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current]
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00
I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 29 prio class 2
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 0, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 1, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 2, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 3, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 4, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 5, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 6, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 7 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev sr0, logical block 7, async page read
loop3: detected capacity change from 0 to 7
loop6: detected capacity change from 0 to 40
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current]
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00
I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 31 prio class 2
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