------------[ cut here ]------------ lp >= size || lp < 0 WARNING: fs/jfs/jfs_dmap.c:2875 at dbAdjTree+0x454/0x4e0 fs/jfs/jfs_dmap.c:2875, CPU#0: jfsCommit/121 Modules linked in: CPU: 0 UID: 0 PID: 121 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 RIP: 0010:dbAdjTree+0x454/0x4e0 fs/jfs/jfs_dmap.c:2875 Code: 5a ff ff ff e8 cd 4e 79 fe eb 05 e8 c6 4e 79 fe 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 ad 4e 79 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:ffffc90003997988 EFLAGS: 00010293 RAX: ffffffff8349e5c3 RBX: ffff888063eb4010 RCX: ffff88801cb8bc80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 000000005ff20056 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff9400031f5a1 R12: ffff888063eb4018 R13: dffffc0000000000 R14: 0000000000000004 R15: 0000000000000155 FS: 0000000000000000(0000) GS:ffff8881265c9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32c10ff8 CR3: 0000000076bd6000 CR4: 00000000003526f0 Call Trace: dbJoin+0x238/0x300 fs/jfs/jfs_dmap.c:2843 dbFreeBits+0x4e1/0xdb0 fs/jfs/jfs_dmap.c:2340 dbFreeDmap fs/jfs/jfs_dmap.c:2089 [inline] dbFree+0x336/0x650 fs/jfs/jfs_dmap.c:398 txFreeMap+0x7ff/0xde0 fs/jfs/jfs_txnmgr.c:2535 txUpdateMap+0x308/0x9c0 fs/jfs/jfs_txnmgr.c:-1 txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline] jfs_lazycommit+0x3ef/0xa10 fs/jfs/jfs_txnmgr.c:2734 kthread+0x726/0x8b0 kernel/kthread.c:463 ret_from_fork+0x51b/0xa40 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246