loop0: detected capacity change from 24 to 0 MINIX-fs: mounting unchecked file system, running fsck is recommended ================================================================================ UBSAN: shift-out-of-bounds in fs/minix/bitmap.c:103:3 shift exponent 34 is too large for 32-bit type 'unsigned int' CPU: 1 PID: 5875 Comm: syz-executor183 Not tainted 5.11.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x9a/0xcc lib/dump_stack.c:120 ubsan_epilogue+0x5/0x40 lib/ubsan.c:148 __ubsan_handle_shift_out_of_bounds.cold+0x61/0xe9 lib/ubsan.c:395 minix_count_free_blocks.cold+0x14/0x1c fs/minix/bitmap.c:103 minix_statfs+0x20e/0x480 fs/minix/inode.c:381 statfs_by_dentry+0x11b/0x1e0 fs/statfs.c:66 vfs_statfs fs/statfs.c:90 [inline] user_statfs+0x91/0x110 fs/statfs.c:105 __do_sys_statfs+0x6b/0xc0 fs/statfs.c:195 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f9ba9b8cdc9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe68d0f698 EFLAGS: 00000246 ORIG_RAX: 0000000000000089 RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f9ba9b8cdc9 RDX: 00007f9ba9b4b2f3 RSI: 0000000000000000 RDI: 0000000020000140 RBP: 00007f9ba9b4c5c0 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffe68d0f560 R11: 0000000000000246 R12: 00007f9ba9b4c650 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ================================================================================