sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.1 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5691 at lib/iov_iter.c:644 _copy_from_iter+0x2b2/0x1330
Modules linked in:
CPU: 0 PID: 5691 Comm: syz-executor.1 Not tainted 6.3.0-next-20230424 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2b2/0x1330
Code: 5d 41 5e 41 5f e9 02 bd 36 02 e8 29 36 36 ff be 88 02 00 00 48 c7 c7 c0 da 9e 84 e8 28 2c 5a ff e9 51 fe ff ff e8 0e 36 36 ff <0f> 0b 45 31 f6 eb 87 e8 02 36 36 ff 31 ff 89 ee e8 39 31 36 ff 40
RSP: 0018:ffff888042f47608 EFLAGS: 00010216
RAX: 0000000000003264 RBX: 0000000000000000 RCX: ffffc900009dc000
RDX: 0000000000040000 RSI: ffffffff8215c7a2 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000001000
R13: ffff888042f47838 R14: 0000000000001000 R15: ffff888042f47838
FS: 00007f9c1d673700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6a9f46ff60 CR3: 0000000041a4e000 CR4: 0000000000350ef0
DR0: 0000000020000100 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
copy_page_from_iter+0xe3/0x180
blk_rq_map_user_iov+0xb39/0x16c0
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+0x2d8/0xdd0
ksys_write+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f9c200fdb19
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:00007f9c1d673188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9c20210f60 RCX: 00007f9c200fdb19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007f9c20157f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff7458f7df R14: 00007f9c1d673300 R15: 0000000000022000
irq event stamp: 5563
hardirqs last enabled at (5591): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (5618): [] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last enabled at (4146): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (3681): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
semctl(GETNCNT/GETZCNT) is since 3.16 Single Unix Specification compliant.
The task syz-executor.5 (5693) triggered the difference, watch for misbehavior.
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5694 comm=syz-executor.1
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.1 not setting count and/or reply_len properly
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5694 comm=syz-executor.1
kworker/u4:4: attempt to access beyond end of device
loop6: rw=1, sector=124, nr_sectors = 4 limit=40
Buffer I/O error on dev loop6, logical block 31, lost async page write
loop6: detected capacity change from 0 to 40
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5714 comm=syz-executor.1
kworker/u4:7: attempt to access beyond end of device
loop6: rw=1, sector=124, nr_sectors = 4 limit=40
Buffer I/O error on dev loop6, logical block 31, lost async page write
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5728 comm=syz-executor.1
loop6: detected capacity change from 0 to 40
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5743 comm=syz-executor.1
kworker/u4:7: attempt to access beyond end of device
loop6: rw=1, sector=124, nr_sectors = 4 limit=40
Buffer I/O error on dev loop6, logical block 31, lost async page write
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
blk_print_req_error: 247 callbacks suppressed
I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2
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 02 00
I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 8 prio class 2
Buffer I/O error on dev sr0, logical block 0, async page read
Buffer I/O error on dev sr0, logical block 1, async page read
Buffer I/O error on dev sr0, logical block 2, async page read
Buffer I/O error on dev sr0, logical block 3, async page read
Buffer I/O error on dev sr0, logical block 4, async page read
Buffer I/O error on dev sr0, logical block 5, async page read
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 18 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_io_error: 2 callbacks suppressed
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
Buffer I/O error on dev sr0, logical block 7, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Buffer I/O error on dev sr0, logical block 0, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Buffer I/O error on dev sr0, logical block 1, async page read
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
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
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
loop2: detected capacity change from 0 to 2048
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none.
ext4 filesystem being mounted at /syzkaller-testdir945509739/syzkaller.W8of0g/91/file0 supports timestamps until 2038-01-19 (0x7fffffff)
EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000.
random: crng reseeded on system resumption
Restarting kernel threads ... done.
random: crng reseeded on system resumption
loop2: detected capacity change from 0 to 2048
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none.
ext4 filesystem being mounted at /syzkaller-testdir945509739/syzkaller.W8of0g/92/file0 supports timestamps until 2038-01-19 (0x7fffffff)
netlink: 'syz-executor.4': attribute type 27 has an invalid length.
EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop2: detected capacity change from 0 to 2048
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none.
ext4 filesystem being mounted at /syzkaller-testdir945509739/syzkaller.W8of0g/93/file0 supports timestamps until 2038-01-19 (0x7fffffff)
EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop2: detected capacity change from 0 to 2048
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none.
ext4 filesystem being mounted at /syzkaller-testdir945509739/syzkaller.W8of0g/94/file0 supports timestamps until 2038-01-19 (0x7fffffff)
EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000.
syz-executor.1 uses obsolete (PF_INET,SOCK_PACKET)
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.7'.
loop3: detected capacity change from 0 to 2048