BUG at fs/jfs/jfs_logmgr.c:2312 assert(bp->l_flag & lbmRELEASE) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_logmgr.c:2312! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 10 Comm: ksoftirqd/0 Not tainted 5.11.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:lbmIODone.cold+0x24/0x5b fs/jfs/jfs_logmgr.c:2312 Code: f8 e8 cb ff ff ff e8 23 b0 b9 f8 48 c7 c1 20 94 83 89 ba 08 09 00 00 48 c7 c6 a0 93 83 89 48 c7 c7 e0 93 83 89 e8 f1 cd fa ff <0f> 0b e8 fd af b9 f8 48 c7 c1 60 94 83 89 ba 09 09 00 00 48 c7 c6 RSP: 0018:ffffc90000cf7bb8 EFLAGS: 00010082 RAX: 000000000000003f RBX: ffff8880277c7f00 RCX: 0000000000000000 RDX: ffff888010d61bc0 RSI: ffffffff815b2a45 RDI: fffff5200019ef69 RBP: 0000000000000020 R08: 000000000000003f R09: 0000000000000000 R10: ffffffff815abc1e R11: 0000000000000000 R12: 0000000000000246 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002992a98 CR3: 000000002c6d0000 CR4: 0000000000350ef0 Call Trace: bio_endio+0x3cd/0x790 block/bio.c:1450 req_bio_endio block/blk-core.c:263 [inline] blk_update_request+0x68b/0x1480 block/blk-core.c:1461 blk_mq_end_request+0x4c/0x510 block/blk-mq.c:564 lo_complete_rq+0x20d/0x2d0 drivers/block/loop.c:497 blk_done_softirq+0x294/0x3e0 block/blk-mq.c:588 __do_softirq+0x2a5/0x9f7 kernel/softirq.c:343 run_ksoftirqd kernel/softirq.c:650 [inline] run_ksoftirqd+0x2d/0x50 kernel/softirq.c:642 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:165 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Modules linked in: ---[ end trace cd5d5c1cdd84ddaa ]--- RIP: 0010:lbmIODone.cold+0x24/0x5b fs/jfs/jfs_logmgr.c:2312 Code: f8 e8 cb ff ff ff e8 23 b0 b9 f8 48 c7 c1 20 94 83 89 ba 08 09 00 00 48 c7 c6 a0 93 83 89 48 c7 c7 e0 93 83 89 e8 f1 cd fa ff <0f> 0b e8 fd af b9 f8 48 c7 c1 60 94 83 89 ba 09 09 00 00 48 c7 c6 RSP: 0018:ffffc90000cf7bb8 EFLAGS: 00010082 RAX: 000000000000003f RBX: ffff8880277c7f00 RCX: 0000000000000000 RDX: ffff888010d61bc0 RSI: ffffffff815b2a45 RDI: fffff5200019ef69 RBP: 0000000000000020 R08: 000000000000003f R09: 0000000000000000 R10: ffffffff815abc1e R11: 0000000000000000 R12: 0000000000000246 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002992a98 CR3: 000000002c6d0000 CR4: 0000000000350ef0