projects
/
linux-2.6-block.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
| inline |
side by side
printk: return -EINVAL if the message len is bigger than the buf size
[linux-2.6-block.git]
/
kernel
/
printk.c
diff --git
a/kernel/printk.c
b/kernel/printk.c
index 572730bd8a5ccb6ed33372bcedd3fab9fd024584..a2276b9167691f164c0753d1c3f0d6ff0b7090e9 100644
(file)
--- a/
kernel/printk.c
+++ b/
kernel/printk.c
@@
-880,7
+880,9
@@
static int syslog_print(char __user *buf, int size)
syslog_seq++;
raw_spin_unlock_irq(&logbuf_lock);
- if (len > 0 && copy_to_user(buf, text, len))
+ if (len > size)
+ len = -EINVAL;
+ else if (len > 0 && copy_to_user(buf, text, len))
len = -EFAULT;
kfree(text);