ialloc: diAlloc returned -5! BUG at fs/jfs/jfs_dmap.c:3028 assert(bitno < 32) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_dmap.c:3028! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 7837 Comm: syz.2.252 Not tainted 6.16.0-rc5-syzkaller-00053-g8c2e52ebbe88 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:dbFindBits+0x19e/0x1a0 fs/jfs/jfs_dmap.c:3028 Code: ec fd 90 0f 0b e8 d2 de 84 fe 48 c7 c7 40 be c3 8b 48 c7 c6 80 bb c3 8b ba d4 0b 00 00 48 c7 c1 20 c6 c3 8b e8 03 52 ec fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 RSP: 0018:ffffc9000b907570 EFLAGS: 00010246 RAX: 0000000000000030 RBX: 0000000000000000 RCX: a8bd2c4aac699a00 RDX: ffffc9000c539000 RSI: 00000000000016b1 RDI: 00000000000016b2 RBP: 00000000ffffffff R08: ffffffff8fa0c5f7 R09: 1ffffffff1f418be R10: dffffc0000000000 R11: fffffbfff1f418bf R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020 FS: 00007fc08a8406c0(0000) GS:ffff888125d4f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555660ed608 CR3: 0000000033220000 CR4: 00000000003526f0 Call Trace: dbAllocDmapLev+0x16b/0x3c0 fs/jfs/jfs_dmap.c:1977 dbAllocCtl+0x14a/0x9b0 fs/jfs/jfs_dmap.c:1817 dbAllocAG+0x1e8/0xf10 fs/jfs/jfs_dmap.c:1353 dbAlloc+0x5a8/0xba0 fs/jfs/jfs_dmap.c:877 dtSplitUp fs/jfs/jfs_dtree.c:982 [inline] dtInsert+0xad5/0x5f40 fs/jfs/jfs_dtree.c:871 jfs_link+0x312/0x550 fs/jfs/namei.c:826 vfs_link+0x4ed/0x6e0 fs/namei.c:4863 do_linkat+0x272/0x560 fs/namei.c:4933 __do_sys_link fs/namei.c:4967 [inline] __se_sys_link fs/namei.c:4965 [inline] __x64_sys_link+0x82/0x90 fs/namei.c:4965 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc08998e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc08a840038 EFLAGS: 00000246 ORIG_RAX: 0000000000000056 RAX: ffffffffffffffda RBX: 00007fc089bb5fa0 RCX: 00007fc08998e929 RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000200000000ac0 RBP: 00007fc089a10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fc089bb5fa0 R15: 00007ffd3ee584f8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dbFindBits+0x19e/0x1a0 fs/jfs/jfs_dmap.c:3028 Code: ec fd 90 0f 0b e8 d2 de 84 fe 48 c7 c7 40 be c3 8b 48 c7 c6 80 bb c3 8b ba d4 0b 00 00 48 c7 c1 20 c6 c3 8b e8 03 52 ec fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 RSP: 0018:ffffc9000b907570 EFLAGS: 00010246 RAX: 0000000000000030 RBX: 0000000000000000 RCX: a8bd2c4aac699a00 RDX: ffffc9000c539000 RSI: 00000000000016b1 RDI: 00000000000016b2 RBP: 00000000ffffffff R08: ffffffff8fa0c5f7 R09: 1ffffffff1f418be R10: dffffc0000000000 R11: fffffbfff1f418bf R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020 FS: 00007fc08a8406c0(0000) GS:ffff888125d4f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555660ed608 CR3: 0000000033220000 CR4: 00000000003526f0