CVE-2024-26662: drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'
First published: Tue Apr 02 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()' 'panel_cntl' structure used to control the display panel could be null, dereferencing it could lead to a null pointer access. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn21/dcn21_hwseq.c:269 dcn21_set_backlight_level() error: we previously assumed 'panel_cntl' could be null (see line 250)
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.6.17 | 6.6.17 |
| redhat/kernel | <6.7.5 | 6.7.5 |
| redhat/kernel | <6.8 | 6.8 |
| debian/linux | <=5.10.223-1<=5.10.226-1<=6.1.115-1<=6.1.119-1 | 6.12.5-1 6.12.6-1 |
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Reference Links
- https://git.kernel.org/stable/c/0c863cab0e9173f8b6c7bc328bee3b8625f131b5
- https://git.kernel.org/stable/c/2e150ccea13129eb048679114808eb9770443e4d
- https://git.kernel.org/stable/c/e96fddb32931d007db12b1fce9b5e8e4c080401b
- https://launchpad.net/bugs/cve/CVE-2024-26662
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26662
- https://nvd.nist.gov/vuln/detail/CVE-2024-26662
- https://security-tracker.debian.org/tracker/CVE-2024-26662
- https://ubuntu.com/security/CVE-2024-26662
- https://git.kernel.org/linus/e96fddb32931d007db12b1fce9b5e8e4c080401b
- https://access.redhat.com/security/cve/CVE-2024-26662
- https://lore.kernel.org/linux-cve-announce/2024040223-CVE-2024-26662-863c@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2272787
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2272786
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