loop0: detected capacity change from 0 to 32768 ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2641:11 shift exponent 80 is too large for 32-bit type 'int' CPU: 1 UID: 0 PID: 5592 Comm: syz-executor.0 Not tainted 6.11.0-syzkaller-ga430d95c5efa-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x3c8/0x420 lib/ubsan.c:468 dbSplit+0x21a/0x220 fs/jfs/jfs_dmap.c:2641 dbAllocBits+0x4ea/0x990 fs/jfs/jfs_dmap.c:2193 dbAllocDmap fs/jfs/jfs_dmap.c:2034 [inline] dbAllocDmapLev+0x250/0x4a0 fs/jfs/jfs_dmap.c:1988 dbAllocCtl+0x113/0x920 fs/jfs/jfs_dmap.c:1825 dbAllocAG+0x28f/0x10b0 fs/jfs/jfs_dmap.c:1364 dbAlloc+0x658/0xca0 fs/jfs/jfs_dmap.c:888 dtSplitUp fs/jfs/jfs_dtree.c:981 [inline] dtInsert+0xd7a/0x6c10 fs/jfs/jfs_dtree.c:870 jfs_symlink+0x827/0x10f0 fs/jfs/namei.c:1020 vfs_symlink+0x137/0x2e0 fs/namei.c:4615 do_symlinkat+0x222/0x3a0 fs/namei.c:4641 __do_sys_symlinkat fs/namei.c:4657 [inline] __se_sys_symlinkat fs/namei.c:4654 [inline] __x64_sys_symlinkat+0x95/0xb0 fs/namei.c:4654 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f94e107dea9 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:00007f94e1de90c8 EFLAGS: 00000246 ORIG_RAX: 000000000000010a RAX: ffffffffffffffda RBX: 00007f94e11abf80 RCX: 00007f94e107dea9 RDX: 0000000020000340 RSI: 0000000000000004 RDI: 0000000020000440 RBP: 00007f94e10ca4a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f94e11abf80 R15: 00007fff2a3973f8 ---[ end trace ]---