diff options
| -rw-r--r-- | kernel/sysctl.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index d13426680d1..e82726faeef 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -2053,6 +2053,8 @@ static int do_proc_dointvec_jiffies_conv(int *negp, unsigned long *lvalp, int write, void *data) { if (write) { + if (*lvalp > LONG_MAX / HZ) + return 1; *valp = *negp ? -(*lvalp*HZ) : (*lvalp*HZ); } else { int val = *valp; @@ -2074,6 +2076,8 @@ static int do_proc_dointvec_userhz_jiffies_conv(int *negp, unsigned long *lvalp, int write, void *data) { if (write) { + if (USER_HZ < HZ && *lvalp > (LONG_MAX / HZ) * USER_HZ) + return 1; *valp = clock_t_to_jiffies(*negp ? -*lvalp : *lvalp); } else { int val = *valp; |