CVE-2023-53833
Description
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)
How to fix
- Linux Linuxdbf25cc21beff4fd2e730573845a266504b21bb2, 8b3c0d2d1685ba40b0af4ee1f8d8824a73870f88, a41d985902c153c31c616fe183cf2ee331e95ecb or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 74a75dc908692dd0548209004e53832c02433c0c ≤ v < dbf25cc21beff4fd2e730573845a266504b21bb2, 74a75dc908692dd0548209004e53832c02433c0c ≤ v < 8b3c0d2d1685ba40b0af4ee1f8d8824a73870f88, 74a75dc908692dd0548209004e53832c02433c0c ≤ v < a41d985902c153c31c616fe183cf2ee331e95ecb, 5.16 | dbf25cc21beff4fd2e730573845a266504b21bb2, 8b3c0d2d1685ba40b0af4ee1f8d8824a73870f88, a41d985902c153c31c616fe183cf2ee331e95ecb |
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