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taskset: disallow "taskset -p 0"

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2021-08-15 20:41:18 +02:00
parent ac2d4d88ce
commit 319e20b56b
1 changed files with 2 additions and 2 deletions
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4
util-linux/taskset.c
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@ -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);
}