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[PATCH] fix kernel oops with badly formatted module option

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Catch malformed kernel parameter usage of "param = value".  Spaces are not
supported, but don't cause a kernel fault on such usage, just report an
error.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Randy Dunlap 2007-04-11 23:28:41 -07:00 committed by Linus Torvalds
parent 80584ff3b9
commit fe20e581a7
1 changed files with 4 additions and 0 deletions
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4
kernel/params.c
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@ -356,6 +356,10 @@ int param_set_copystring(const char *val, struct kernel_param *kp)
{
struct kparam_string *kps = kp->arg;
if (!val) {
printk(KERN_ERR "%s: missing param set value\n", kp->name);
return -EINVAL;
}
if (strlen(val)+1 > kps->maxlen) {
printk(KERN_ERR "%s: string doesn't fit in %u chars.\n",
kp->name, kps->maxlen-1);