Denis Efremov <[email protected]> wrote: > memcpy() call with "idata == NULL && ilen == 0" results in undefined > behavior in ar5523_cmd(). For example, NULL is passed in callchain > "ar5523_stat_work() -> ar5523_cmd_write() -> ar5523_cmd()". This patch > adds ilen check before memcpy() call in ar5523_cmd() to prevent an > undefined behavior. > > Cc: Pontus Fuchs <[email protected]> > Cc: Kalle Valo <[email protected]> > Cc: "David S. Miller" <[email protected]> > Cc: David Laight <[email protected]> > Cc: [email protected] > Signed-off-by: Denis Efremov <[email protected]> > Signed-off-by: Kalle Valo <[email protected]>
Patch applied to ath-next branch of ath.git, thanks. 315cee426f87 ar5523: check NULL before memcpy() in ar5523_cmd() -- https://patchwork.kernel.org/patch/11167401/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
