On Wed, Apr 17, 2024 at 9:51 PM wangzhu <[email protected]> wrote: > > Hi Greg, thanks for your reply. Since there is no patch to fix CVE-2023-52624 > in linux-5.10, there is a patch in the linux-6.7 branch, its commit is > 2ef98c6d753a744e333b7e34b9cf687040fba57d ("drm/amd/display: Wake DMCUB before > executing GPINT commands"). When we apply this patch to linux-5.10, there are > lots of conflicts, and we found there are lots of dependent patches, and lots > of patches are not proposed to fix the cve, they are presented to add new > functions of the kernel. >
Why is there a CVE? Have you uncovered some specific issue? Alex > My commit comes from nearly 20 patches. For each patch, not all of its > content is meant to fix the cve, so I just get the part which is helpful to > fix. It is why I don't present the patches one by one instead of merging them > into one big patch. > > > -----邮件原件----- > 发件人: Greg KH [mailto:[email protected]] > 发送时间: 2024年4月16日 12:54 > 收件人: wangzhu <[email protected]> > 抄送: [email protected]; [email protected]; [email protected]; > [email protected]; [email protected]; [email protected]; > [email protected]; [email protected]; [email protected]; > [email protected]; [email protected]; [email protected]; > [email protected]; [email protected]; [email protected]; > [email protected]; [email protected]; [email protected]; [email protected]; > [email protected]; [email protected]; [email protected]; Zhengzengkai > <[email protected]>; [email protected]; [email protected]; > [email protected]; [email protected]; [email protected]; > [email protected]; [email protected]; [email protected]; > [email protected]; [email protected] > 主题: Re: [PATCH v6.6] drm/amd/display: Wake DMCUB before executing GPINT > commands > > On Tue, Apr 16, 2024 at 03:52:40AM +0000, Zhu Wang wrote: > > From: Nicholas Kazlauskas <[email protected]> > > > > stable inclusion > > from stable-v6.7.3 > > commit 2ef98c6d753a744e333b7e34b9cf687040fba57d > > category: bugfix > > bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9BV4C > > CVE: CVE-2023-52624 > > > > Reference: > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/com > > mit/?id=2ef98c6d753a744e333b7e34b9cf687040fba57d > > > > -------------------------------- > > > > [ Upstream commit e5ffd1263dd5b44929c676171802e7b6af483f21 ] > > > > [Why] > > DMCUB can be in idle when we attempt to interface with the HW through > > the GPINT mailbox resulting in a system hang. > > > > [How] > > Add dc_wake_and_execute_gpint() to wrap the wake, execute, sleep > > sequence. > > > > If the GPINT executes successfully then DMCUB will be put back into > > sleep after the optional response is returned. > > > > It functions similar to the inbox command interface. > > > > Cc: Mario Limonciello <[email protected]> > > Cc: Alex Deucher <[email protected]> > > Cc: [email protected] > > Reviewed-by: Hansen Dsouza <[email protected]> > > Acked-by: Wayne Lin <[email protected]> > > Signed-off-by: Nicholas Kazlauskas <[email protected]> > > Tested-by: Daniel Wheeler <[email protected]> > > Signed-off-by: Alex Deucher <[email protected]> > > > > This commit comes from following commits: > > > > 8774029f76b9 ("drm/amd/display: Add DCN35 CLK_MGR") 65138eb72e1f > > ("drm/amd/display: Add DCN35 DMUB") dc01c4b79bfe ("drm/amd/display: > > Update driver and IPS interop") > > 820c3870c491 ("drm/amd/display: Refactor DMCUB enter/exit idle > > interface") 2ef98c6d753a ("drm/amd/display: Wake DMCUB before > > executing GPINT commands") > > Why are you putting multiple commits together and not just submitting the > individual ones? And what is this for? > > confused, > > greg k-h
