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| author | Denys Vlasenko | 2019-11-09 17:32:43 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2019-11-09 17:32:43 +0100 |
| commit | b230fdfa9da2f31e6cc90f90579c6d020c770f86 (patch) | |
| tree | 33614c264bc528461c429f36980a8bca626107e6 | |
| parent | a82fb1b9d8a046e01dbad33bb57d064815d60e5c (diff) | |
| download | busybox-b230fdfa9da2f31e6cc90f90579c6d020c770f86.zip busybox-b230fdfa9da2f31e6cc90f90579c6d020c770f86.tar.gz | |
taskset: tighten the check for stride values
function old new delta
taskset_main 986 987 +1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | util-linux/taskset.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/util-linux/taskset.c b/util-linux/taskset.c index df1bc0a..b542f8c 100644 --- a/util-linux/taskset.c +++ b/util-linux/taskset.c @@ -149,8 +149,8 @@ static void parse_cpulist(ul *mask, unsigned max, char *s) if ((*s != ',' && *s != '\0') || bit > end || end == UINT_MAX /* bb_strtou returns this on malformed / ERANGE numbers */ - || stride == 0 - || stride == UINT_MAX + || (stride - 1) > (UINT_MAX / 4) + /* disallow 0, malformed input, and too large stride prone to overflows */ ) { bb_error_msg_and_die("bad affinity '%s'", aff); } |