On 04/01/2014 12:08 AM, Greg Kroah-Hartman wrote: > 3.13-stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Al Viro <[email protected]> > > commit e825196d48d2b89a6ec3a8eff280098d2a78207e upstream. > > In all callchains leading to prepend_name(), the value left in *buflen > is eventually discarded unused if prepend_name() has returned a negative. > So we are free to do what prepend() does, and subtract from *buflen > *before* checking for underflow (which turns into checking the sign > of subtraction result, of course). > > Signed-off-by: Al Viro <[email protected]> > Signed-off-by: Greg Kroah-Hartman <[email protected]>
Hi Al, Greg, We're working on creating Ksplice updates for the last -stable tree, and stumbled on this patch. The log message isn't too clear on what actually gets fixed, and auditing the code didn't reveal the answer for that. Could someone please describe what's the issue being solved with this patch? Thanks, Sasha -- 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/
