loop5: detected capacity change from 0 to 264192 gfs2: fsid=loop5: Trying to join cluster "lock_nolock", "loop5" gfs2: fsid=loop5: Now mounting FS (format 1801)... ================================================================================ UBSAN: shift-out-of-bounds in fs/gfs2/ops_fstype.c:295:19 shift exponent 50331651 is too large for 64-bit type 'unsigned long' CPU: 1 PID: 18984 Comm: syz-executor.5 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_shift_out_of_bounds+0x33d/0x3b0 lib/ubsan.c:322 gfs2_read_sb fs/gfs2/ops_fstype.c:295 [inline] init_sb+0x11c6/0x12b0 fs/gfs2/ops_fstype.c:485 gfs2_fill_super+0x18de/0x2610 fs/gfs2/ops_fstype.c:1207 get_tree_bdev+0x400/0x620 fs/super.c:1323 gfs2_get_tree+0x50/0x210 fs/gfs2/ops_fstype.c:1323 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f8c9888cada Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8c99969f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f8c9888cada RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f8c99969fe0 RBP: 00007f8c9996a020 R08: 00007f8c9996a020 R09: 0000000020000000 R10: 0000000000000008 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f8c99969fe0 R15: 0000000020000080 ================================================================================