------------[ cut here ]------------ WARNING: CPU: 0 PID: 103 at fs/jfs/jfs_dmap.c:2867 dbAdjTree+0x454/0x4e0 fs/jfs/jfs_dmap.c:2867 Modules linked in: CPU: 0 UID: 0 PID: 103 Comm: jfsCommit Not tainted 6.15.0-syzkaller-09161-g0f70f5b08a47 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:dbAdjTree+0x454/0x4e0 fs/jfs/jfs_dmap.c:2867 Code: 5a ff ff ff e8 0d fc 82 fe eb 05 e8 06 fc 82 fe 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d e9 03 12 29 08 cc e8 ed fb 82 fe 90 <0f> 0b 90 eb e1 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c e1 fb ff ff RSP: 0018:ffffc9000190f988 EFLAGS: 00010293 RAX: ffffffff833d4563 RBX: ffff88803fa33010 RCX: ffff88801c7c0000 RDX: 0000000000000000 RSI: 0000000000000155 RDI: 0000000000020056 RBP: 0000000000020056 R08: ffffea0000fe8cc7 R09: 1ffffd40001fd198 R10: dffffc0000000000 R11: fffff940001fd199 R12: ffff88803fa33018 R13: dffffc0000000000 R14: 0000000000000004 R15: 0000000000000155 FS: 0000000000000000(0000) GS:ffff88808d265000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000438f5000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dbJoin+0x238/0x300 fs/jfs/jfs_dmap.c:2835 dbFreeBits+0x4e1/0xdb0 fs/jfs/jfs_dmap.c:2332 dbFreeDmap fs/jfs/jfs_dmap.c:2081 [inline] dbFree+0x336/0x650 fs/jfs/jfs_dmap.c:398 txFreeMap+0x7ff/0xde0 fs/jfs/jfs_txnmgr.c:2534 txUpdateMap+0x308/0x9c0 fs/jfs/jfs_txnmgr.c:-1 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline] jfs_lazycommit+0x43f/0xa90 fs/jfs/jfs_txnmgr.c:2733 kthread+0x711/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245