================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2248:16 index -8388608 is out of range for type 's64 [128]' CPU: 0 PID: 28089 Comm: syz-executor.1 Not tainted 6.5.0-syzkaller-13150-g535a265d7f0d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0x111/0x150 lib/ubsan.c:348 dbAllocBits+0x60d/0x630 fs/jfs/jfs_dmap.c:2248 dbAllocDmap+0x5c/0x100 fs/jfs/jfs_dmap.c:2025 dbAllocDmapLev+0x178/0x2f0 fs/jfs/jfs_dmap.c:1979 dbAllocCtl+0x12c/0x7b0 fs/jfs/jfs_dmap.c:1816 dbAllocAG+0x8c5/0xd20 fs/jfs/jfs_dmap.c:1357 dbAlloc+0x415/0xaa0 fs/jfs/jfs_dmap.c:881 dtSplitUp+0x3f3/0x5850 fs/jfs/jfs_dtree.c:974 dtInsert+0x872/0xb00 fs/jfs/jfs_dtree.c:863 jfs_create+0x63c/0xb10 fs/jfs/namei.c:137 lookup_open.isra.0+0x1049/0x1360 fs/namei.c:3495 open_last_lookups fs/namei.c:3563 [inline] path_openat+0x931/0x29c0 fs/namei.c:3793 do_filp_open+0x1de/0x430 fs/namei.c:3823 do_sys_openat2+0x176/0x1e0 fs/open.c:1422 do_sys_open fs/open.c:1437 [inline] __do_sys_creat fs/open.c:1513 [inline] __se_sys_creat fs/open.c:1507 [inline] __x64_sys_creat+0xcd/0x120 fs/open.c:1507 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7994a7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f79957ce0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f7994b9bf80 RCX: 00007f7994a7cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080 RBP: 00007f7994ac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f7994b9bf80 R15: 00007ffd3d0bbc28 ================================================================================