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: 1 PID: 17 Comm: ksoftirqd/1 Not tainted 5.10.0-rc4-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:lbmIODone.cold+0x24/0x5b fs/jfs/jfs_logmgr.c:2312 Code: f8 e8 cb ff ff ff e8 ac 52 bd f8 48 c7 c1 40 ca 82 89 ba 08 09 00 00 48 c7 c6 c0 c9 82 89 48 c7 c7 00 ca 82 89 e8 7e ea fa ff <0f> 0b e8 86 52 bd f8 48 c7 c1 80 ca 82 89 ba 09 09 00 00 48 c7 c6 RSP: 0018:ffffc900004bfbb8 EFLAGS: 00010082 RAX: 000000000000003f RBX: ffff888012bf1b00 RCX: 0000000000000000 RDX: ffff888010b2c580 RSI: ffffffff8158f3e5 RDI: fffff52000097f69 RBP: 0000000000000020 R08: 000000000000003f R09: ffff88802cb30627 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000246 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88802cb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002d9aad8 CR3: 00000000691cf000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bio_endio+0x3d3/0x7a0 block/bio.c:1450 req_bio_endio block/blk-core.c:263 [inline] blk_update_request+0x68e/0x1490 block/blk-core.c:1467 blk_mq_end_request+0x4c/0x510 block/blk-mq.c:562 lo_complete_rq+0x20d/0x2d0 drivers/block/loop.c:501 blk_done_softirq+0x294/0x3e0 block/blk-mq.c:586 __do_softirq+0x2a0/0x9f6 kernel/softirq.c:298 run_ksoftirqd kernel/softirq.c:653 [inline] run_ksoftirqd+0x2d/0x50 kernel/softirq.c:645 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:165 kthread+0x3af/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Modules linked in: ---[ end trace 6a25c5a071b6977e ]--- RIP: 0010:lbmIODone.cold+0x24/0x5b fs/jfs/jfs_logmgr.c:2312 Code: f8 e8 cb ff ff ff e8 ac 52 bd f8 48 c7 c1 40 ca 82 89 ba 08 09 00 00 48 c7 c6 c0 c9 82 89 48 c7 c7 00 ca 82 89 e8 7e ea fa ff <0f> 0b e8 86 52 bd f8 48 c7 c1 80 ca 82 89 ba 09 09 00 00 48 c7 c6 RSP: 0018:ffffc900004bfbb8 EFLAGS: 00010082 RAX: 000000000000003f RBX: ffff888012bf1b00 RCX: 0000000000000000 RDX: ffff888010b2c580 RSI: ffffffff8158f3e5 RDI: fffff52000097f69 RBP: 0000000000000020 R08: 000000000000003f R09: ffff88802cb30627 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000246 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88802cb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002d9aad8 CR3: 00000000691cf000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400