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| author | Andreas Gruenbacher <agruenba@redhat.com> | 2026-08-26 12:41:28 +0200 |
|---|---|---|
| committer | Andreas Gruenbacher <agruenba@redhat.com> | 2026-09-11 15:08:15 +0200 |
| commit | 0008baad6377c8195c63151f66cc01039919eab6 (patch) | |
| tree | 71e100df9f897658abd8ef25c7fe660cab02c2c8 /tools/lib/python | |
| parent | 59932d7f7e48e2bd2017e8d4d9e1a3f2574436f1 (diff) | |
| download | linux-next-0008baad6377c8195c63151f66cc01039919eab6.tar.gz linux-next-0008baad6377c8195c63151f66cc01039919eab6.zip | |
gfs2: No quotas for meta inodes
Inodes on the meta filesystem (mount -o meta) can never have quotas, so
skip them entirely in the quota code. This avoids allocating
ip->i_qadata unnecessarily.
Without this fix, unlinking meta inodes like "statfs" on the meta
filesystem will result in a NULL pointer dereference at unmount time:
gfs2_evict_inode() -> gfs2_dinode_dealloc() -> gfs2_quota_hold()
-> qdsb_get() -> slot_get() -> find_first_zero_bit(sd_quota_bitmap)
Unlinking inodes on the meta filesystem isn't a useful operation, but it
still shouldn't cause the kernel to misbehave.
Reported-by: syzbot+cb79de2cc8b76fbf474f@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=cb79de2cc8b76fbf474f
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'tools/lib/python')
0 files changed, 0 insertions, 0 deletions