From: Olaf Kirch <[email protected]>
Date: Tue, 19 Jun 2007 09:56:24 +0200
> From: Olaf Kirch <[email protected]>
>
> Make skb_seq_read unmap the last fragment
>
> Having walked through the entire skbuff, skb_seq_read would leave the
> last fragment mapped. As a consequence, the unwary caller would leak
> kmaps, and proceed with preempt_count off by one. The only (kind of
> non-intuitive) workaround is to use skb_seq_read_abort.
>
> This patch makes sure skb_seq_read always unmaps frag_data after having
> cycled through the skb's paged part.
>
> Signed-off-by: [email protected]
Thanks for finding and fixing this bug.
Patch applied, thanks again Olaf.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
