mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-15 15:15:47 +00:00
Code Issues Releases Wiki Activity

nfsd: Fix a memory leak in an error handling path

Browse source 
If this memdup_user() call fails, the memory allocated in a previous call
a few lines above should be freed. Otherwise it leaks.

Fixes: 6ee95d1c89 ("nfsd: add support for upcall version 2")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Christophe JAILLET 2022-09-01 07:27:04 +02:00 committed by Chuck Lever
parent 4ab3442ca3
commit fd1ef88049
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
fs/nfsd/nfs4recover.c
View file

@ -815,8 +815,10 @@ __cld_pipe_inprogress_downcall(const struct cld_msg_v2 __user *cmsg,
princhash.data = memdup_user(
&ci->cc_princhash.cp_data,
princhashlen);
if (IS_ERR_OR_NULL(princhash.data))
if (IS_ERR_OR_NULL(princhash.data)) {
kfree(name.data);
return -EFAULT;
}
princhash.len = princhashlen;
} else
princhash.len = 0;