loop0: detected capacity change from 0 to 32768 ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2639:11 shift exponent 80 is too large for 32-bit type 'int' CPU: 0 PID: 5479 Comm: syz-executor.0 Not tainted 6.9.0-rc6-syzkaller-00234-g7367539ad4b0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x23d/0x360 lib/dump_stack.c:114 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x3c4/0x420 lib/ubsan.c:468 dbSplit+0x21a/0x220 fs/jfs/jfs_dmap.c:2639 dbAllocBits+0x4e5/0x9a0 fs/jfs/jfs_dmap.c:2191 dbAllocDmap fs/jfs/jfs_dmap.c:2032 [inline] dbAllocDmapLev+0x24c/0x490 fs/jfs/jfs_dmap.c:1986 dbAllocCtl+0x113/0x920 fs/jfs/jfs_dmap.c:1823 dbAllocAG+0x28b/0x10b0 fs/jfs/jfs_dmap.c:1364 dbAlloc+0x654/0xca0 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+0x820/0x10d0 fs/jfs/namei.c:1020 vfs_symlink+0x133/0x2a0 fs/namei.c:4481 do_symlinkat+0x21e/0x3a0 fs/namei.c:4507 __do_sys_symlinkat fs/namei.c:4523 [inline] __se_sys_symlinkat fs/namei.c:4520 [inline] __x64_sys_symlinkat+0x95/0xb0 fs/namei.c:4520 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x84/0x190 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7fab7107de69 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:00007fab71ed40c8 EFLAGS: 00000246 ORIG_RAX: 000000000000010a RAX: ffffffffffffffda RBX: 00007fab711abf80 RCX: 00007fab7107de69 RDX: 0000000020000340 RSI: 0000000000000004 RDI: 0000000020000440 RBP: 00007fab710ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fab711abf80 R15: 00007fffd444fd38 ---[ end trace ]---