From 718e38d5faf3a3ca23690d2f4203df1df65eba77 Mon Sep 17 00:00:00 2001 From: Zdenek Kabelac Date: Thu, 18 Aug 2022 13:56:03 +0200 Subject: [PATCH] dmsetup: check also for ouf of range value Check errno result from strtoull(). --- libdm/dm-tools/dmsetup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libdm/dm-tools/dmsetup.c b/libdm/dm-tools/dmsetup.c index 8502d9adc..42eeead68 100644 --- a/libdm/dm-tools/dmsetup.c +++ b/libdm/dm-tools/dmsetup.c @@ -5106,8 +5106,9 @@ static int _size_from_string(char *argptr, uint64_t *size, const char *name) if (!argptr) return_0; + errno = 0; *size = strtoull(argptr, &endptr, 10); - if (endptr == argptr) { + if (errno || endptr == argptr) { *size = 0; log_error("Invalid %s argument: \"%s\"", name, (*argptr) ? argptr : "");