loop0: detected capacity change from 0 to 32768 ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2332:2 index 2000 is out of range for type 's64[128]' (aka 'long long[128]') CPU: 1 PID: 4573 Comm: syz-executor.0 Not tainted 5.15.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106 ubsan_epilogue+0xa/0x30 lib/ubsan.c:151 __ubsan_handle_out_of_bounds+0xdf/0xf0 lib/ubsan.c:282 dbAllocBits+0x9c6/0xa10 fs/jfs/jfs_dmap.c:2332 dbAllocDmap fs/jfs/jfs_dmap.c:2109 [inline] dbAllocNear+0x29c/0x3c0 fs/jfs/jfs_dmap.c:1330 dbAlloc+0x92a/0xb90 fs/jfs/jfs_dmap.c:847 ea_get+0x96e/0x12e0 fs/jfs/xattr.c:516 __jfs_setxattr+0x46b/0x1000 fs/jfs/xattr.c:727 __jfs_set_acl+0x121/0x1b0 fs/jfs/acl.c:87 jfs_set_acl+0x1b4/0x350 fs/jfs/acl.c:114 set_posix_acl fs/posix_acl.c:947 [inline] posix_acl_xattr_set+0x36f/0x3e0 fs/posix_acl.c:966 __vfs_setxattr+0x3e0/0x420 fs/xattr.c:182 __vfs_setxattr_noperm+0x129/0x5e0 fs/xattr.c:216 vfs_setxattr+0x168/0x2f0 fs/xattr.c:303 do_setxattr fs/xattr.c:588 [inline] setxattr+0x2da/0x300 fs/xattr.c:611 path_setxattr+0x142/0x280 fs/xattr.c:630 __do_sys_lsetxattr fs/xattr.c:653 [inline] __se_sys_lsetxattr fs/xattr.c:649 [inline] __x64_sys_lsetxattr+0xb4/0xd0 fs/xattr.c:649 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f240e92cb29 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:00007f240dcae0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd RAX: ffffffffffffffda RBX: 00007f240ea4bf80 RCX: 00007f240e92cb29 RDX: 0000000020000180 RSI: 0000000020000040 RDI: 0000000020000000 RBP: 00007f240e97847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000024 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f240ea4bf80 R15: 00007fffe0b30cf8 ================================================================================