RBP: 00007f4fa4687120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000000b R14: 00007f4fa399bf80 R15: 00007f4fa3abfa48 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6925 at block/blk-mq.c:1258 blk_mq_start_request+0x643/0x780 block/blk-mq.c:1258 Modules linked in: CPU: 1 PID: 6925 Comm: syz-executor.4 Not tainted 6.6.0-syzkaller-14500-g1c41041124bd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:blk_mq_start_request+0x643/0x780 block/blk-mq.c:1258 Code: 00 00 fc ff df 48 8d 7d 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2f 01 00 00 48 89 df ff 55 10 e9 64 fc ff ff e8 cd 2f 44 fd <0f> 0b e9 f6 fa ff ff e8 c1 2f 44 fd 0f 0b e9 06 fa ff ff e8 b5 2f RSP: 0018:ffffc9000dba7a80 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88801d603480 RCX: ffffc9000b368000 RDX: 0000000000040000 RSI: ffffffff84446cb3 RDI: 0000000000000005 RBP: ffff88801d603514 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888141b44540 R13: 0000000000000001 R14: ffff88801d60359d R15: ffff88801d6035a0 FS: 00007f4fa46876c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32425000 CR3: 0000000028a38000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: null_queue_rq+0x2e2/0x7a0 drivers/block/null_blk/main.c:1727 __blk_mq_issue_directly+0xe3/0x270 block/blk-mq.c:2578 blk_mq_request_issue_directly+0x120/0x190 block/blk-mq.c:2663 blk_mq_plug_issue_direct+0x19e/0x670 block/blk-mq.c:2684 blk_mq_flush_plug_list.part.0+0x16b6/0x1e90 block/blk-mq.c:2793 blk_mq_flush_plug_list+0x62/0x80 block/blk-mq.c:2770 __blk_flush_plug+0x2c0/0x430 block/blk-core.c:1142 blk_finish_plug block/blk-core.c:1166 [inline] blk_finish_plug+0x54/0xa0 block/blk-core.c:1163 __do_sys_io_submit fs/aio.c:2065 [inline] __se_sys_io_submit fs/aio.c:2030 [inline] __x64_sys_io_submit+0x257/0x350 fs/aio.c:2030 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f4fa387cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4fa46870c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f4fa399bf80 RCX: 00007f4fa387cae9 RDX: 00000000200001c0 RSI: 0000000000000003 RDI: 00007f4fa465e000 RBP: 00007f4fa4687120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000000b R14: 00007f4fa399bf80 R15: 00007f4fa3abfa48