Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffef7df6e48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffef7df6e50 RCX: 00007fc7b14d4929 RDX: 0000000020000040 RSI: 00000000200000c0 RDI: 0000000020000000 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000003134 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffef7df6e9c R13: 00007ffef7df6ed0 R14: 00007ffef7df6eb0 R15: 0000000000000002 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5063 at block/blk-mq.c:1258 blk_mq_start_request+0x40b/0x670 Modules linked in: CPU: 1 PID: 5063 Comm: syz-executor140 Not tainted 6.6.0-syzkaller-15156-g13d88ac54ddd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:blk_mq_start_request+0x40b/0x670 block/blk-mq.c:1258 Code: 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 36 01 00 00 41 89 1e 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 75 da 27 fd <0f> 0b e9 f3 fd ff ff e8 69 da 27 fd 0f 0b e9 48 fc ff ff e8 5d da RSP: 0018:ffffc900042ff318 EFLAGS: 00010293 RAX: ffffffff8466e18b RBX: 1ffff11003a11582 RCX: ffff88802558bb80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff8466df78 R09: 1ffffffff21ba482 R10: dffffc0000000000 R11: fffffbfff21ba483 R12: ffff88801d08ab80 R13: dffffc0000000000 R14: ffff888141b43c98 R15: ffff88801d08ac14 FS: 0000555556830480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc7b1507ca0 CR3: 000000007f82f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: null_queue_rq+0x32c/0x640 drivers/block/null_blk/main.c:1727 __blk_mq_issue_directly block/blk-mq.c:2578 [inline] blk_mq_request_issue_directly+0x3cd/0x710 block/blk-mq.c:2663 blk_mq_plug_issue_direct+0x27c/0x5d0 block/blk-mq.c:2684 blk_mq_flush_plug_list+0x842/0x1860 block/blk-mq.c:2793 __blk_flush_plug+0x446/0x4c0 block/blk-core.c:1142 blk_finish_plug+0x5d/0x80 block/blk-core.c:1166 read_pages+0x639/0x830 mm/readahead.c:183 page_cache_ra_unbounded+0x68e/0x7c0 mm/readahead.c:269 page_cache_sync_readahead include/linux/pagemap.h:1266 [inline] cramfs_blkdev_read fs/cramfs/inode.c:218 [inline] cramfs_read+0x4c9/0xa70 fs/cramfs/inode.c:278 cramfs_read_super+0xbe/0x970 fs/cramfs/inode.c:522 cramfs_blkdev_fill_super+0x115/0x250 fs/cramfs/inode.c:622 get_tree_bdev+0x416/0x5b0 fs/super.c:1598 vfs_get_tree+0x8c/0x280 fs/super.c:1771 do_new_mount+0x28f/0xae0 fs/namespace.c:3337 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3863 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fc7b14d4929 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffef7df6e48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffef7df6e50 RCX: 00007fc7b14d4929 RDX: 0000000020000040 RSI: 00000000200000c0 RDI: 0000000020000000 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000003134 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffef7df6e9c R13: 00007ffef7df6ed0 R14: 00007ffef7df6eb0 R15: 0000000000000002 ---------------- Code disassembly (best guess): 0: 28 00 sub %al,(%rax) 2: 00 00 add %al,(%rax) 4: 75 05 jne 0xb 6: 48 83 c4 28 add $0x28,%rsp a: c3 ret b: e8 f1 17 00 00 call 0x1801 10: 90 nop 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall * 2a: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 c7 c1 b8 ff ff ff mov $0xffffffffffffffb8,%rcx 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W