loop0: detected capacity change from 0 to 8 ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in fs/squashfs/block.c:195:36 shift exponent 64 is too large for 64-bit type 'u64' (aka 'unsigned long long') CPU: 0 UID: 0 PID: 6373 Comm: syz.0.109 Not tainted 6.14.0-syzkaller-11125-g609706855d90 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x3c8/0x420 lib/ubsan.c:492 squashfs_bio_read+0x1050/0x1180 fs/squashfs/block.c:195 squashfs_read_data+0x2e7/0xba0 fs/squashfs/block.c:333 squashfs_read_table+0x338/0x390 fs/squashfs/cache.c:436 squashfs_fill_super+0x238/0x21e0 fs/squashfs/super.c:216 get_tree_bdev_flags+0x492/0x5c0 fs/super.c:1636 vfs_get_tree+0x92/0x2b0 fs/super.c:1759 do_new_mount+0x2cf/0xb70 fs/namespace.c:3878 do_mount fs/namespace.c:4218 [inline] __do_sys_mount fs/namespace.c:4429 [inline] __se_sys_mount+0x38c/0x400 fs/namespace.c:4406 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f229398e90a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2294866e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f2294866ef0 RCX: 00007f229398e90a RDX: 0000200000000040 RSI: 0000200000000240 RDI: 00007f2294866eb0 RBP: 0000200000000040 R08: 00007f2294866ef0 R09: 0000000000210c00 R10: 0000000000210c00 R11: 0000000000000246 R12: 0000200000000240 R13: 00007f2294866eb0 R14: 00000000000001ad R15: 0000200000001480 ---[ end trace ]---