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authorDenys Vlasenko2021-08-15 20:41:18 +0200
committerDenys Vlasenko2021-08-15 20:41:18 +0200
commit319e20b56b281c9ce552f918b1a1d4c5577d38d6 (patch)
tree11f3de786120e0e4953380c617d698ca95e437a9
parentac2d4d88ce54d418b579a50ae18434fbf5ffa58a (diff)
downloadbusybox-319e20b56b281c9ce552f918b1a1d4c5577d38d6.zip
busybox-319e20b56b281c9ce552f918b1a1d4c5577d38d6.tar.gz
taskset: disallow "taskset -p 0"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--util-linux/taskset.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/util-linux/taskset.c b/util-linux/taskset.c
index afe2f04..d2ef9b9 100644
--- a/util-linux/taskset.c
+++ b/util-linux/taskset.c
@@ -218,7 +218,7 @@ static int process_pid_str(const char *pid_str, unsigned opts, char *aff)
ul *mask;
unsigned mask_size_in_bytes;
const char *current_new;
- pid_t pid = xatoi_positive(pid_str);
+ pid_t pid = !pid_str ? 0 : xatou_range(pid_str, 1, INT_MAX); /* disallow "0": "taskset -p 0" should fail */
mask_size_in_bytes = SZOF_UL;
current_new = "current";
@@ -343,7 +343,7 @@ int taskset_main(int argc UNUSED_PARAM, char **argv)
/* <aff> <cmd...> */
if (!*argv)
bb_show_usage();
- process_pid_str("0", opts, aff);
+ process_pid_str(NULL, opts, aff);
BB_EXECVP_or_die(argv);
}