Messages in this thread | | | Subject | Re: [PATCH] ath: dfs_pattern_detector: Fix possible null-pointer dereference in channel_detector_create() | From | Kalle Valo <> | Date | Mon, 11 Oct 2021 06:26:19 +0000 (UTC) |
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Tuo Li <islituo@gmail.com> 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@tsinghua.edu.cn> > Signed-off-by: Tuo Li <islituo@gmail.com> > Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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@gmail.com/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
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