CVE-2023-53833
In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix NULL ptr deref by checking new_crtc_state intel_atomic_get_new_crtc_state can return NULL, unless crtc state wasn't obtained previously with intel_atomic_get_crtc_state, so we must check it for NULLness here, just as in many other places, where we can't guarantee that intel_atomic_get_crtc_state was called. We are currently getting NULL ptr deref because of that, so this fix was confirmed to help. (cherry picked from commit 1d5b09f8daf859247a1ea65b0d732a24d88980d8)
Affected versions
Linux kernel versions
5.16
and later are affected. Fixed in
6.1.30,
6.3.4,
6.4
and their respective stable series.
References
The following references provide additional information about CVE-2023-53833 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/8b3c0d2d1685ba40b0af4ee1f8d8824a73870f88
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PatchKernel patch commithttps://git.kernel.org/stable/c/a41d985902c153c31c616fe183cf2ee331e95ecb
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PatchKernel patch commithttps://git.kernel.org/stable/c/dbf25cc21beff4fd2e730573845a266504b21bb2
Frequently asked questions
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What is CVE-2023-53833?
CVE-2023-53833 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.16 onward and has been patched in 6.1.30, 6.3.4 and 6.4. CVE-2023-53833 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2023-53833?
Yes — CVE-2023-53833 has been patched. Fixed versions include 6.1.30, 6.3.4 and 6.4. If you are running Linux kernel 5.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-53833 actively exploited?
No — CVE-2023-53833 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.