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authorAlex Shi <alex.shi@linaro.org>2017-07-18 14:31:54 +0800
committerAlex Shi <alex.shi@linaro.org>2017-07-18 14:31:54 +0800
commit16e243013beb93902693c4bb90e4348c99588429 (patch)
tree6a5858d948085974ef1f26bb1e4b546cfb44cfc5 /kernel/sysctl.c
parent2120557722577d8cff75a33a799ad15582dbd8ef (diff)
parent5289d9c979092878f2bf741d8b365ef7565fb6db (diff)
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-androidlsk-v4.4-17.07-android
Diffstat (limited to 'kernel/sysctl.c')
-rw-r--r--kernel/sysctl.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 8ea768245b92..6e64c71e00a0 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -175,7 +175,7 @@ extern int no_unaligned_warning;
#define SYSCTL_WRITES_WARN 0
#define SYSCTL_WRITES_STRICT 1
-static int sysctl_writes_strict = SYSCTL_WRITES_WARN;
+static int sysctl_writes_strict = SYSCTL_WRITES_STRICT;
static int proc_do_cad_pid(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos);
@@ -2164,9 +2164,12 @@ static int do_proc_douintvec_conv(bool *negp, unsigned long *lvalp,
if (write) {
if (*negp)
return -EINVAL;
+ if (*lvalp > UINT_MAX)
+ return -EINVAL;
*valp = *lvalp;
} else {
unsigned int val = *valp;
+ *negp = false;
*lvalp = (unsigned long)val;
}
return 0;