gfs2: fsid=syz:syz.0: first mount done, others may mount
syz.0.15: attempt to access beyond end of device
loop0: rw=8400896, sector=2251799813685248, nr_sectors = 8 limit=32768
=====================================================
BUG: KMSAN: uninit-value in gfs2_metatype_check_i fs/gfs2/util.h:115 [inline]
BUG: KMSAN: uninit-value in gfs2_quota_init+0x217a/0x2710 fs/gfs2/quota.c:1431
 gfs2_metatype_check_i fs/gfs2/util.h:115 [inline]
 gfs2_quota_init+0x217a/0x2710 fs/gfs2/quota.c:1431
 gfs2_make_fs_rw+0x17c/0x3a0 fs/gfs2/super.c:149
 gfs2_fill_super+0x3dea/0x3ff0 fs/gfs2/ops_fstype.c:1275
 get_tree_bdev_flags+0x6e6/0x920 fs/super.c:1694
 get_tree_bdev+0x38/0x50 fs/super.c:1717
 gfs2_get_tree+0x57/0x350 fs/gfs2/ops_fstype.c:1332
 vfs_get_tree+0xb3/0x5d0 fs/super.c:1754
 fc_mount fs/namespace.c:1193 [inline]
 do_new_mount_fc fs/namespace.c:3760 [inline]
 do_new_mount+0x885/0x1dd0 fs/namespace.c:3836
 path_mount+0x7a2/0x20b0 fs/namespace.c:4146
 do_mount fs/namespace.c:4159 [inline]
 __do_sys_mount fs/namespace.c:4348 [inline]
 __se_sys_mount+0x704/0x7f0 fs/namespace.c:4325
 __x64_sys_mount+0xe4/0x150 fs/namespace.c:4325
 x64_sys_call+0x39f0/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x134/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 __alloc_frozen_pages_noprof+0x6f7/0x1020 mm/page_alloc.c:5272
 alloc_pages_mpol+0x328/0x860 mm/mempolicy.c:2485
 alloc_frozen_pages_noprof mm/mempolicy.c:2556 [inline]
 alloc_pages_noprof mm/mempolicy.c:2576 [inline]
 folio_alloc_noprof+0x108/0x360 mm/mempolicy.c:2586
 filemap_alloc_folio_noprof+0xd9/0x480 mm/filemap.c:1013
 __filemap_get_folio_mpol+0xb43/0x1960 mm/filemap.c:2006
 __filemap_get_folio include/linux/pagemap.h:774 [inline]
 gfs2_getbuf+0x291/0xd30 fs/gfs2/meta_io.c:144
 gfs2_meta_ra+0x13c/0x720 fs/gfs2/meta_io.c:528
 gfs2_quota_init+0x759/0x2710 fs/gfs2/quota.c:1428
 gfs2_make_fs_rw+0x17c/0x3a0 fs/gfs2/super.c:149
 gfs2_fill_super+0x3dea/0x3ff0 fs/gfs2/ops_fstype.c:1275
 get_tree_bdev_flags+0x6e6/0x920 fs/super.c:1694
 get_tree_bdev+0x38/0x50 fs/super.c:1717
 gfs2_get_tree+0x57/0x350 fs/gfs2/ops_fstype.c:1332
 vfs_get_tree+0xb3/0x5d0 fs/super.c:1754
 fc_mount fs/namespace.c:1193 [inline]
 do_new_mount_fc fs/namespace.c:3760 [inline]
 do_new_mount+0x885/0x1dd0 fs/namespace.c:3836
 path_mount+0x7a2/0x20b0 fs/namespace.c:4146
 do_mount fs/namespace.c:4159 [inline]
 __do_sys_mount fs/namespace.c:4348 [inline]
 __se_sys_mount+0x704/0x7f0 fs/namespace.c:4325
 __x64_sys_mount+0xe4/0x150 fs/namespace.c:4325
 x64_sys_call+0x39f0/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x134/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 UID: 0 PID: 6618 Comm: syz.0.15 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
=====================================================