diff options
| author | Randy Dunlap <rddunlap@osdl.org> | 2005-01-04 05:32:43 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-01-04 05:32:43 -0800 |
| commit | 920e33286e432fd1717cb9513cc91cd3a80ed12a (patch) | |
| tree | 06fe44b87d24a7e971e4d3ab6cebe10af001a0e5 /kernel | |
| parent | 68764ad9ef60d9308dcce419c9a9bfc7fcab2ac8 (diff) | |
[PATCH] cpumask: range check before using value
When setting the 'cpu_isolated_map' mask, check that the user input value
is valid (in range 0 .. NR_CPUS - 1). Also fix up kernel-parameters.txt
for this parameter.
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 4c10b10c05c7..3386e7b87614 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -36,6 +36,7 @@ #include <linux/blkdev.h> #include <linux/delay.h> #include <linux/smp.h> +#include <linux/threads.h> #include <linux/timer.h> #include <linux/rcupdate.h> #include <linux/cpu.h> @@ -4169,7 +4170,8 @@ static int __init isolated_cpu_setup(char *str) str = get_options(str, ARRAY_SIZE(ints), ints); cpus_clear(cpu_isolated_map); for (i = 1; i <= ints[0]; i++) - cpu_set(ints[i], cpu_isolated_map); + if (ints[i] < NR_CPUS) + cpu_set(ints[i], cpu_isolated_map); return 1; } |