diff options
| author | Ben Hutchings <ben.hutchings@codethink.co.uk> | 2018-01-22 20:11:06 +0000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-22 20:13:07 -0800 |
| commit | 1995266727fa8143897e89b55f5d3c79aa828420 (patch) | |
| tree | 2955860ce332561b8021ac8f07141e8a6849ad62 /block | |
| parent | a0ec1ded22e6a6bc41981fae22406835b006a66e (diff) | |
nfsd: auth: Fix gid sorting when rootsquash enabled
Commit bdcf0a423ea1 ("kernel: make groups_sort calling a responsibility
group_info allocators") appears to break nfsd rootsquash in a pretty
major way.
It adds a call to groups_sort() inside the loop that copies/squashes
gids, which means the valid gids are sorted along with the following
garbage. The net result is that the highest numbered valid gids are
replaced with any lower-valued garbage gids, possibly including 0.
We should sort only once, after filling in all the gids.
Fixes: bdcf0a423ea1 ("kernel: make groups_sort calling a responsibility ...")
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Acked-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions