BUG at fs/jfs/jfs_logmgr.c:2298 assert(bp->l_flag & lbmRELEASE) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_logmgr.c:2298! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:lbmIODone+0x1622/0x1670 fs/jfs/jfs_logmgr.c:2298 Code: 54 02 18 07 0f 0b e8 fd e5 92 fe 48 c7 c7 a0 2d a6 8a 48 c7 c6 a0 28 a6 8a ba fa 08 00 00 48 c7 c1 20 37 a6 8a e8 2e 02 18 07 <0f> 0b e8 d7 e5 92 fe 48 c7 c7 a0 2d a6 8a 48 c7 c6 a0 28 a6 8a ba RSP: 0018:ffffc900001b7ab8 EFLAGS: 00010046 RAX: 000000000000003f RBX: 0000000000000020 RCX: 4a2a1e17350d0500 RDX: 0000000000000100 RSI: 0000000080000101 RDI: 0000000000000000 RBP: ffff888019654c08 R08: dffffc0000000000 R09: fffff52000036ef9 R10: fffff52000036ef9 R11: 1ffff92000036ef8 R12: ffff888019654c00 R13: dffffc0000000000 R14: 0000000000000a06 R15: ffff8880552a4a78 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4593372a60 CR3: 000000005ce00000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: req_bio_endio block/blk-mq.c:782 [inline] blk_update_request+0x593/0xe30 block/blk-mq.c:927 blk_mq_end_request+0x3a/0x70 block/blk-mq.c:1052 blk_complete_reqs block/blk-mq.c:1132 [inline] blk_done_softirq+0x100/0x150 block/blk-mq.c:1137 handle_softirqs+0x2a1/0x920 kernel/softirq.c:596 run_ksoftirqd+0x98/0xf0 kernel/softirq.c:968 smpboot_thread_fn+0x64a/0xa40 kernel/smpboot.c:164 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:lbmIODone+0x1622/0x1670 fs/jfs/jfs_logmgr.c:2298 Code: 54 02 18 07 0f 0b e8 fd e5 92 fe 48 c7 c7 a0 2d a6 8a 48 c7 c6 a0 28 a6 8a ba fa 08 00 00 48 c7 c1 20 37 a6 8a e8 2e 02 18 07 <0f> 0b e8 d7 e5 92 fe 48 c7 c7 a0 2d a6 8a 48 c7 c6 a0 28 a6 8a ba RSP: 0018:ffffc900001b7ab8 EFLAGS: 00010046 RAX: 000000000000003f RBX: 0000000000000020 RCX: 4a2a1e17350d0500 RDX: 0000000000000100 RSI: 0000000080000101 RDI: 0000000000000000 RBP: ffff888019654c08 R08: dffffc0000000000 R09: fffff52000036ef9 R10: fffff52000036ef9 R11: 1ffff92000036ef8 R12: ffff888019654c00 R13: dffffc0000000000 R14: 0000000000000a06 R15: ffff8880552a4a78 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4593372a60 CR3: 000000005ce00000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400