Commit e0c6d97c authored Jun 20, 2008 by Cliff Wickman Committed by Tony Luck Jun 20, 2008

[IA64] SN2: security hole in sn2_ptc_proc_write



Security hole in sn2_ptc_proc_write

It is possible to overrun a buffer with a write to this /proc file.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

parent 9bedbcb2

arch/ia64/sn/kernel/sn2/sn2_smp.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -512,6 +512,8 @@ static ssize_t sn2_ptc_proc_write(struct file file, const char __user user, si
		int cpu;
		char optstr[64];

		if (count > sizeof(optstr))
		return -EINVAL;
		if (copy_from_user(optstr, user, count))
		return -EFAULT;
		optstr[count - 1] = '\0';