I/O error, dev sr0, sector 979872 op 0x0:(READ) flags 0x84700 phys_seg 4 prio class 0
I/O error, dev sr0, sector 838568 op 0x0:(READ) flags 0x84700 phys_seg 9 prio class 0
I/O error, dev sr0, sector 1163872 op 0x0:(READ) flags 0x84700 phys_seg 4 prio class 0
INFO: task syz-executor.4:8158 can't die for more than 143 seconds.
task:syz-executor.4 state:D stack:23808 pid: 8158 ppid: 300 flags:0x00004006
Call Trace:
__schedule+0x88d/0x2450
schedule+0xd2/0x1f0
io_schedule+0xba/0x130
blk_mq_get_tag+0x55e/0xbd0
__blk_mq_alloc_requests+0x5a3/0xe30
blk_mq_submit_bio+0x10d8/0x1e90
__submit_bio+0x1c7/0x230
submit_bio_noacct_nocheck+0x6c5/0x8a0
submit_bio_noacct+0x7a9/0x1360
submit_bio+0x157/0x2b0
do_mpage_readpage+0xedc/0x1ae0
mpage_readahead+0x36d/0x6d0
read_pages+0x1a7/0xdc0
page_cache_ra_unbounded+0x38b/0x540
page_cache_ra_order+0x15a/0x1b0
filemap_fault+0x1333/0x2140
__do_fault+0x113/0x5a0
__handle_mm_fault+0x139e/0x3600
handle_mm_fault+0x2e6/0xa20
do_user_addr_fault+0x54a/0x12a0
exc_page_fault+0xa2/0x1a0
asm_exc_page_fault+0x1e/0x30
RIP: 0010:copy_user_generic_string+0x2c/0x40
Code: cb 83 fa 08 72 27 89 f9 83 e1 07 74 15 83 e9 08 f7 d9 29 ca 8a 06 88 07 48 ff c6 48 ff c7 ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01
RSP: 0018:ffff888008a07bd0 EFLAGS: 00050246
RAX: 0000000000000001 RBX: 0000000000000010 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000020001480 RDI: ffff888008a07db0
RBP: ffff888008a07db0 R08: 0000000000000001 R09: ffff888008a07dbf
R10: ffffed1001140fb7 R11: 0000000000000001 R12: 00007fffffffeff0
R13: 0000000020001480 R14: 0000000000000010 R15: ffff888008a07db0
_copy_from_user+0x130/0x170
iovec_from_user+0x236/0x3c0
__import_iovec+0x64/0x5c0
import_iovec+0x83/0xb0
vfs_readv+0xbb/0x150
__x64_sys_preadv+0x22b/0x310
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f9c33e5db19
RSP: 002b:00007f9c313d3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007f9c33f70f60 RCX: 00007f9c33e5db19
RDX: 0000000000000001 RSI: 0000000020001480 RDI: 0000000000000003
RBP: 00007f9c33eb7f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff0993081f R14: 00007f9c313d3300 R15: 0000000000022000
INFO: task syz-executor.4:8171 can't die for more than 143 seconds.
task:syz-executor.4 state:D stack:24320 pid: 8171 ppid: 300 flags:0x00004006
Call Trace:
__schedule+0x88d/0x2450
schedule+0xd2/0x1f0
io_schedule+0xba/0x130
blk_mq_get_tag+0x55e/0xbd0
__blk_mq_alloc_requests+0x5a3/0xe30
blk_mq_submit_bio+0x10d8/0x1e90
__submit_bio+0x1c7/0x230
submit_bio_noacct_nocheck+0x6c5/0x8a0
submit_bio_noacct+0x7a9/0x1360
submit_bio+0x157/0x2b0
do_mpage_readpage+0xedc/0x1ae0
mpage_readahead+0x36d/0x6d0
read_pages+0x1a7/0xdc0
page_cache_ra_unbounded+0x292/0x540
page_cache_ra_order+0x15a/0x1b0
filemap_fault+0x1333/0x2140
__do_fault+0x113/0x5a0
__handle_mm_fault+0x139e/0x3600
handle_mm_fault+0x2e6/0xa20
do_user_addr_fault+0x54a/0x12a0
exc_page_fault+0xa2/0x1a0
asm_exc_page_fault+0x1e/0x30
RIP: 0010:copy_user_generic_string+0x2c/0x40
Code: cb 83 fa 08 72 27 89 f9 83 e1 07 74 15 83 e9 08 f7 d9 29 ca 8a 06 88 07 48 ff c6 48 ff c7 ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01
RSP: 0018:ffff88806c18fdd8 EFLAGS: 00050246
RAX: 0000000000000001 RBX: 0000000000000010 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000020002e80 RDI: ffff88806c18fe28
RBP: ffff88806c18fe28 R08: 0000000000000001 R09: ffff88806c18fe37
R10: ffffed100d831fc6 R11: 0000000000000001 R12: 00007fffffffeff0
R13: 0000000020002e80 R14: dffffc0000000000 R15: ffff88806c18fec8
_copy_from_user+0x130/0x170
get_timespec64+0x75/0x190
__x64_sys_recvmmsg+0x14c/0x260
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f9c33e5db19
RSP: 002b:00007f9c313b2188 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f9c33f71020 RCX: 00007f9c33e5db19
RDX: 0000000000000003 RSI: 0000000020002dc0 RDI: 0000000000000003
RBP: 00007f9c33eb7f6d R08: 0000000020002e80 R09: 0000000000000000
R10: 0000000000000020 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff0993081f R14: 00007f9c313b2300 R15: 0000000000022000
INFO: task syz-executor.4:8177 can't die for more than 143 seconds.
task:syz-executor.4 state:D stack:24072 pid: 8177 ppid: 300 flags:0x00004006
Call Trace:
__schedule+0x88d/0x2450
schedule+0xd2/0x1f0
io_schedule+0xba/0x130
blk_mq_get_tag+0x55e/0xbd0
__blk_mq_alloc_requests+0x5a3/0xe30
blk_mq_submit_bio+0x10d8/0x1e90
__submit_bio+0x1c7/0x230
submit_bio_noacct_nocheck+0x6c5/0x8a0
submit_bio_noacct+0x7a9/0x1360
submit_bio+0x157/0x2b0
do_mpage_readpage+0xedc/0x1ae0
mpage_readahead+0x36d/0x6d0
read_pages+0x1a7/0xdc0
page_cache_ra_unbounded+0x292/0x540
page_cache_ra_order+0x15a/0x1b0
filemap_fault+0x1333/0x2140
__do_fault+0x113/0x5a0
__handle_mm_fault+0x139e/0x3600
handle_mm_fault+0x2e6/0xa20
do_user_addr_fault+0x54a/0x12a0
exc_page_fault+0xa2/0x1a0
asm_exc_page_fault+0x1e/0x30
RIP: 0010:copy_user_generic_string+0x2c/0x40
Code: cb 83 fa 08 72 27 89 f9 83 e1 07 74 15 83 e9 08 f7 d9 29 ca 8a 06 88 07 48 ff c6 48 ff c7 ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01
RSP: 0018:ffff888044307dd8 EFLAGS: 00050246
RAX: 0000000000000001 RBX: 0000000000000010 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000020002e80 RDI: ffff888044307e28
RBP: ffff888044307e28 R08: 0000000000000001 R09: ffff888044307e37
R10: ffffed1008860fc6 R11: 0000000000000001 R12: 00007fffffffeff0
R13: 0000000020002e80 R14: dffffc0000000000 R15: ffff888044307ec8
_copy_from_user+0x130/0x170
get_timespec64+0x75/0x190
__x64_sys_recvmmsg+0x14c/0x260
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f9c33e5db19
RSP: 002b:00007f9c31391188 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f9c33f710e0 RCX: 00007f9c33e5db19
RDX: 0000000000000003 RSI: 0000000020002dc0 RDI: 0000000000000003
RBP: 00007f9c33eb7f6d R08: 0000000020002e80 R09: 0000000000000000
R10: 0000000000000020 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff0993081f R14: 00007f9c31391300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/24:
#0: ffffffff85203400 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
2 locks held by in:imklog/189:
#0: ffff88800d914ae8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe3/0x100
#1: ffffffff851f6b08 (syslog_lock){+.+.}-{3:3}, at: try_to_wake_up+0x499/0x1060
2 locks held by agetty/228:
#0: ffff88800fece098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
#1: ffffc900001e52e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xd38/0x1280
1 lock held by syz-executor.4/8158:
#0: ffff888007c57c40 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: page_cache_ra_unbounded+0x153/0x540
1 lock held by syz-executor.4/8171:
#0: ffff888007c57c40 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: page_cache_ra_unbounded+0x153/0x540
1 lock held by syz-executor.4/8177:
#0: ffff888007c57c40 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: page_cache_ra_unbounded+0x153/0x540
=============================================
scsi_io_completion_action: 196 callbacks suppressed
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 03 cc c6 00 00 40 00
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 03 42 ba 00 00 40 00
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 04 80 98 00 00 40 00
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 03 cd 06 00 00 40 00
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 03 42 fa 00 00 40 00
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 04 80 d8 00 00 40 00
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 03 cd 46 00 00 40 00
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 03 43 3a 00 00 40 00
blk_print_req_error: 196 callbacks suppressed
I/O error, dev sr0, sector 855272 op 0x0:(READ) flags 0x84700 phys_seg 8 prio class 0
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 04 81 18 00 00 40 00
I/O error, dev sr0, sector 1180768 op 0x0:(READ) flags 0x84700 phys_seg 4 prio class 0
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 03 cd 86 00 00 40 00
I/O error, dev sr0, sector 996888 op 0x0:(READ) flags 0x84700 phys_seg 8 prio class 0
I/O error, dev sr0, sector 855528 op 0x0:(READ) flags 0x84700 phys_seg 5 prio class 0
I/O error, dev sr0, sector 1181024 op 0x0:(READ) flags 0x84700 phys_seg 8 prio class 0
I/O error, dev sr0, sector 997144 op 0x0:(READ) flags 0x84700 phys_seg 5 prio class 0
I/O error, dev sr0, sector 855784 op 0x0:(READ) flags 0x84700 phys_seg 5 prio class 0
I/O error, dev sr0, sector 1181280 op 0x0:(READ) flags 0x84700 phys_seg 4 prio class 0
I/O error, dev sr0, sector 997400 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 0
I/O error, dev sr0, sector 856040 op 0x0:(READ) flags 0x84700 phys_seg 5 prio class 0
scsi_io_completion_action: 184 callbacks suppressed
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 03 dc 46 00 00 40 00
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 03 53 02 00 00 40 00
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 04 91 18 00 00 40 00
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 03 dc 86 00 00 40 00
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 03 53 42 00 00 40 00
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 04 91 58 00 00 40 00
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 03 dc c6 00 00 40 00
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 03 53 82 00 00 40 00
blk_print_req_error: 184 callbacks suppressed
I/O error, dev sr0, sector 871944 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 0
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 04 91 98 00 00 40 00
I/O error, dev sr0, sector 1197664 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 0
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 03 dd 06 00 00 40 00
I/O error, dev sr0, sector 1012760 op 0x0:(READ) flags 0x84700 phys_seg 4 prio class 0
I/O error, dev sr0, sector 872200 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 0
I/O error, dev sr0, sector 1197920 op 0x0:(READ) flags 0x84700 phys_seg 4 prio class 0
I/O error, dev sr0, sector 1013016 op 0x0:(READ) flags 0x84700 phys_seg 7 prio class 0
I/O error, dev sr0, sector 872456 op 0x0:(READ) flags 0x84700 phys_seg 8 prio class 0
I/O error, dev sr0, sector 1198176 op 0x0:(READ) flags 0x84700 phys_seg 4 prio class 0
I/O error, dev sr0, sector 1013272 op 0x0:(READ) flags 0x84700 phys_seg 5 prio class 0
I/O error, dev sr0, sector 872712 op 0x0:(READ) flags 0x84700 phys_seg 7 prio class 0
----------------
Code disassembly (best guess):
0: cb lret
1: 83 fa 08 cmp $0x8,%edx
4: 72 27 jb 0x2d
6: 89 f9 mov %edi,%ecx
8: 83 e1 07 and $0x7,%ecx
b: 74 15 je 0x22
d: 83 e9 08 sub $0x8,%ecx
10: f7 d9 neg %ecx
12: 29 ca sub %ecx,%edx
14: 8a 06 mov (%rsi),%al
16: 88 07 mov %al,(%rdi)
18: 48 ff c6 inc %rsi
1b: 48 ff c7 inc %rdi
1e: ff c9 dec %ecx
20: 75 f2 jne 0x14
22: 89 d1 mov %edx,%ecx
24: c1 e9 03 shr $0x3,%ecx
27: 83 e2 07 and $0x7,%edx
* 2a: f3 48 a5 rep movsq %ds:(%rsi),%es:(%rdi) <-- trapping instruction
2d: 89 d1 mov %edx,%ecx
2f: f3 a4 rep movsb %ds:(%rsi),%es:(%rdi)
31: 31 c0 xor %eax,%eax
33: 0f 01 ca clac
36: c3 retq
37: 8d 0c ca lea (%rdx,%rcx,8),%ecx
3a: 89 ca mov %ecx,%edx
3c: eb 20 jmp 0x5e
3e: 0f .byte 0xf
3f: 01 .byte 0x1