sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 26 00 00 00 40 00
critical target error, dev sr0, sector 1873920 op 0x1:(WRITE) flags 0x4000 phys_seg 32 prio class 2
critical target error, dev sr0, sector 1874176 op 0x1:(WRITE) flags 0x4000 phys_seg 32 prio class 2
INFO: task syz-executor.2:14752 blocked for more than 143 seconds.
      Not tainted 6.17.0-next-20250929 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:28080 pid:14752 tgid:14716 ppid:7002   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0xe7e/0x3580
 schedule+0xdb/0x390
 schedule_preempt_disabled+0x10/0x20
 rwsem_down_write_slowpath+0x3c1/0x1330
 down_write+0x1c2/0x1f0
 blkdev_fallocate+0x248/0x450
 vfs_fallocate+0x3fb/0xd60
 __x64_sys_fallocate+0xd6/0x150
 do_syscall_64+0xbf/0x390
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcd656c8b19
RSP: 002b:00007fcd62c1d188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fcd657dc020 RCX: 00007fcd656c8b19
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000005
RBP: 00007fcd65722f6d R08: 0000000000000000 R09: 0000000000000000
R10: 1000000000000105 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdfbe8a8bf R14: 00007fcd62c1d300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.2:14752 <writer> blocked on an rw-semaphore likely owned by task syz-executor.2:14717 <writer>
task:syz-executor.2  state:D stack:26568 pid:14717 tgid:14716 ppid:7002   task_flags:0x400140 flags:0x00080003
Call Trace:
 <TASK>
 __schedule+0xe7e/0x3580
 schedule+0xdb/0x390
 io_schedule+0xbf/0x130
 blk_mq_get_tag+0x568/0xaa0
 __blk_mq_alloc_requests+0x6ed/0x15a0
 blk_mq_submit_bio+0x17c3/0x2430
 __submit_bio+0x17f/0x5b0
 submit_bio_noacct_nocheck+0x552/0xb60
 submit_bio_noacct+0x35b/0x1350
 bio_chain_and_submit+0x2f/0x40
 __blkdev_issue_zero_pages+0x2ee/0x630
 blkdev_issue_zeroout+0x540/0x800
 blkdev_fallocate+0x387/0x450
 vfs_fallocate+0x3fb/0xd60
 __x64_sys_fallocate+0xd6/0x150
 do_syscall_64+0xbf/0x390
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcd656c8b19
RSP: 002b:00007fcd62c3e188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fcd657dbf60 RCX: 00007fcd656c8b19
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000003
RBP: 00007fcd65722f6d R08: 0000000000000000 R09: 0000000000000000
R10: 1000000000000105 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdfbe8a8bf R14: 00007fcd62c3e300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/32:
 #0: ffffffff85e1d9a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0
1 lock held by in:imklog/175:
 #0: ffff88801636e478 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x2a8/0x380
2 locks held by syz-executor.2/14717:
 #0: ffff88800b926cd8 (&sb->s_type->i_mutex_key#6){++++}-{4:4}, at: blkdev_fallocate+0x248/0x450
 #1: ffff88800b926e78 (mapping.invalidate_lock){++++}-{4:4}, at: blkdev_fallocate+0x279/0x450
1 lock held by syz-executor.2/14752:
 #0: ffff88800b926cd8 (&sb->s_type->i_mutex_key#6){++++}-{4:4}, at: blkdev_fallocate+0x248/0x450

=============================================

scsi_io_completion_action: 234 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 60 c0 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 61 00 00 00 40 00
blk_print_req_error: 234 callbacks suppressed
critical target error, dev sr0, sector 1934336 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 61 40 00 00 40 00
critical target error, dev sr0, sector 1934592 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 61 80 00 00 40 00
critical target error, dev sr0, sector 1934848 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 61 c0 00 00 40 00
critical target error, dev sr0, sector 1935104 op 0x1:(WRITE) flags 0x0 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 62 00 00 00 40 00
critical target error, dev sr0, sector 1935360 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 62 40 00 00 40 00
critical target error, dev sr0, sector 1935616 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 62 80 00 00 40 00
critical target error, dev sr0, sector 1935872 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 62 c0 00 00 40 00
critical target error, dev sr0, sector 1936128 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 63 00 00 00 40 00
critical target error, dev sr0, sector 1936384 op 0x1:(WRITE) flags 0x4000 phys_seg 32 prio class 2
critical target error, dev sr0, sector 1936640 op 0x1:(WRITE) flags 0x4000 phys_seg 32 prio class 2
scsi_io_completion_action: 279 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 a9 00 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 a9 40 00 00 40 00
blk_print_req_error: 279 callbacks suppressed
critical target error, dev sr0, sector 2008320 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 a9 80 00 00 40 00
critical target error, dev sr0, sector 2008576 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 a9 c0 00 00 40 00
critical target error, dev sr0, sector 2008832 op 0x1:(WRITE) flags 0x0 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 aa 00 00 00 40 00
critical target error, dev sr0, sector 2009088 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 aa 40 00 00 40 00
critical target error, dev sr0, sector 2009344 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 aa 80 00 00 40 00
critical target error, dev sr0, sector 2009600 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 aa c0 00 00 40 00
critical target error, dev sr0, sector 2009856 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 ab 00 00 00 40 00
critical target error, dev sr0, sector 2010112 op 0x1:(WRITE) flags 0x4000 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 : Illegal Request [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Invalid command operation code
sr 1:0:0:0: [sr0] tag#0 CDB: Write(10) 2a 00 00 07 ab 40 00 00 40 00
critical target error, dev sr0, sector 2010368 op 0x1:(WRITE) flags 0x4000 phys_seg 32 prio class 2
critical target error, dev sr0, sector 2010624 op 0x1:(WRITE) flags 0x4000 phys_seg 32 prio class 2