From: Dan Carpenter <dan.carpenter@linaro.org> mainline inclusion from mainline-v6.15-rc1 commit 2c17e9ea0caa5555e31e154fa1b06260b816f5cc category: bugfix bugzilla: https://atomgit.com/src-openeuler/kernel/issues/14186 CVE: CVE-2026-31443 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... -------------------------------- The "saved_evl" pointer is a offset into the middle of a non-NULL struct. It can't be NULL and the check is slightly confusing. Delete the check. Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Fenghua Yu <fenghua.yu@intel.com> Link: https://lore.kernel.org/r/ec38214e-0bbb-4c5a-94ff-b2b2d4c3f245@stanley.mount... Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Lin Ruifeng <linruifeng4@huawei.com> --- drivers/dma/idxd/init.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c index 91933dd7973f..e51c025d55b7 100644 --- a/drivers/dma/idxd/init.c +++ b/drivers/dma/idxd/init.c @@ -982,8 +982,7 @@ static void idxd_device_config_restore(struct idxd_device *idxd, idxd->rdbuf_limit = idxd_saved->saved_idxd.rdbuf_limit; - if (saved_evl) - idxd->evl->size = saved_evl->size; + idxd->evl->size = saved_evl->size; for (i = 0; i < idxd->max_groups; i++) { struct idxd_group *saved_group, *group; -- 2.43.0