loop0: detected capacity change from 0 to 32768 ================================================================================ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2707:11 shift exponent 80 is too large for 32-bit type 'int' CPU: 1 PID: 3970 Comm: syz-executor.0 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_shift_out_of_bounds+0x3bf/0x420 lib/ubsan.c:321 dbSplit+0x21a/0x220 fs/jfs/jfs_dmap.c:2707 dbAllocBits+0x4e5/0x9a0 fs/jfs/jfs_dmap.c:2259 dbAllocDmap fs/jfs/jfs_dmap.c:2100 [inline] dbAllocDmapLev+0x24c/0x490 fs/jfs/jfs_dmap.c:2054 dbAllocCtl+0x113/0x920 fs/jfs/jfs_dmap.c:1891 dbAllocAG+0x28b/0x10b0 fs/jfs/jfs_dmap.c:1432 dbAlloc+0x654/0xc90 fs/jfs/jfs_dmap.c:888 dtSplitUp fs/jfs/jfs_dtree.c:979 [inline] dtInsert+0xda3/0x6b00 fs/jfs/jfs_dtree.c:868 jfs_symlink+0x823/0x10e0 fs/jfs/namei.c:1019 vfs_symlink+0x247/0x3d0 fs/namei.c:4429 do_symlinkat+0x1fd/0x600 fs/namei.c:4458 __do_sys_symlinkat fs/namei.c:4475 [inline] __se_sys_symlinkat fs/namei.c:4472 [inline] __x64_sys_symlinkat+0x95/0xa0 fs/namei.c:4472 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f1a4483fe69 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:00007f1a43bc00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000010a RAX: ffffffffffffffda RBX: 00007f1a4496df80 RCX: 00007f1a4483fe69 RDX: 0000000020000340 RSI: 0000000000000004 RDI: 0000000020000440 RBP: 00007f1a4488c47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f1a4496df80 R15: 00007ffe3bd68638 ================================================================================