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authorAndrew Perepechko <andrew.perepechko@sun.com>2008-04-28 13:14:31 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-28 19:58:32 +0400
commit338bf9afda91ec005a1e9a0de4af0271cc167d56 (patch)
treee60edf0441efbe8215cdeb08bf05c1b6afff58a1 /fs/quota_v2.c
parent3b0cb4caefeca6fe6b05c6c5a76e9c633b44c58f (diff)
downloadlinux-338bf9afda91ec005a1e9a0de4af0271cc167d56.tar.xz
quota: do not allow setting of quota limits to too high values
We should check whether quota limits set via Q_SETQUOTA are not exceeding limits which quota format is able to handle. Signed-off-by: Andrew Perepechko <andrew.perepechko@sun.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/quota_v2.c')
-rw-r--r--fs/quota_v2.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/quota_v2.c b/fs/quota_v2.c
index c519a583e681..23b647f25d08 100644
--- a/fs/quota_v2.c
+++ b/fs/quota_v2.c
@@ -59,6 +59,9 @@ static int v2_read_file_info(struct super_block *sb, int type)
sb->s_id);
return -1;
}
+ /* limits are stored as unsigned 32-bit data */
+ info->dqi_maxblimit = 0xffffffff;
+ info->dqi_maxilimit = 0xffffffff;
info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace);
info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace);
info->dqi_flags = le32_to_cpu(dinfo.dqi_flags);