Tuo Li <islituo@xxxxxxxxx> wrote: > kzalloc() is used to allocate memory for cd->detectors, and if it fails, > channel_detector_exit() behind the label fail will be called: > channel_detector_exit(dpd, cd); > > In channel_detector_exit(), cd->detectors is dereferenced through: > struct pri_detector *de = cd->detectors[i]; > > To fix this possible null-pointer dereference, check cd->detectors before > the for loop to dereference cd->detectors. > > Reported-by: TOTE Robot <oslab@xxxxxxxxxxxxxxx> > Signed-off-by: Tuo Li <islituo@xxxxxxxxx> > Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Patch applied to ath-next branch of ath.git, thanks. 4b6012a7830b ath: dfs_pattern_detector: Fix possible null-pointer dereference in channel_detector_create() -- https://patchwork.kernel.org/project/linux-wireless/patch/20210805153854.154066-1-islituo@xxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
