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Disallow negative UIDs when processing quotactl options.

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This commit is contained in:
Mike Pritchard 2007-02-01 01:01:56 +00:00
parent 4e99994cc9
commit 3c0508582d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=166380
1 changed files with 5 additions and 0 deletions
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5
sys/ufs/ufs/ufs_quota.c
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@ -891,6 +891,11 @@ dqget(vp, id, ump, type, dqp)
struct uio auio;
int error;
/* XXX: Disallow negative id values to prevent the
* creation of 100GB+ quota data files.
*/
if ((int)id < 0)
return (EINVAL);
dqvp = ump->um_quotas[type];
if (dqvp == NULLVP || (ump->um_qflags[type] & QTF_CLOSING)) {
*dqp = NODQUOT;