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| author | Alan Cox <alan@linux.intel.com> | 2012-07-30 14:42:49 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-30 17:25:21 -0700 |
| commit | 25353b3377d5a75d4b830477bb90a3691155de72 (patch) | |
| tree | fc1227929cb2cf7c5356e19c5adbb238bcfb14bb /kernel | |
| parent | fd4b616b0fbb77e3f349e7d60914f2b7c7e39f9c (diff) | |
| download | lwn-25353b3377d5a75d4b830477bb90a3691155de72.tar.gz lwn-25353b3377d5a75d4b830477bb90a3691155de72.zip | |
taskstats: check nla_reserve() return
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=44621
Reported-by: <rucsoftsec@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/taskstats.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/taskstats.c b/kernel/taskstats.c index e66046456f4f..d0a32796550f 100644 --- a/kernel/taskstats.c +++ b/kernel/taskstats.c @@ -436,6 +436,11 @@ static int cgroupstats_user_cmd(struct sk_buff *skb, struct genl_info *info) na = nla_reserve(rep_skb, CGROUPSTATS_TYPE_CGROUP_STATS, sizeof(struct cgroupstats)); + if (na == NULL) { + rc = -EMSGSIZE; + goto err; + } + stats = nla_data(na); memset(stats, 0, sizeof(*stats)); |