Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check link_res->hpo_dp_link_enc before using it [WHAT & HOW] Functions dp_enable_link_phy and dp_disable_link_phy can pass link_res without initializing hpo_dp_link_enc and it is necessary to check for null before dereferencing. This fixes 2 FORWARD_NULL issues reported by Coverity.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to < 8c22a62288194f072eb3a51045b700fce1c18d9eaffected4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to < be2ca7a2c1561390d28bf2f92654d819659ba510affected4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to < 530e29452b955c30cf2102fa4d07420dc6e0c953affected4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to < 0508a4e95ac1aefd851ceb97ea050d8abb93262caffected4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to < 0beca868cde8742240cd0038141c30482d2b7eb8affected
Linux Linux
Default version status: affected
4.15affected0 to < 4.15unaffected6.1.151 to ≤ 6.1.*unaffected6.6.55 to ≤ 6.6.*unaffected6.10.14 to ≤ 6.10.*unaffected6.11.2 to ≤ 6.11.*unaffected6.12 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/8c22a62288194f072eb3a51045b700fce1c18d9e ↗
- https://git.kernel.org/stable/c/be2ca7a2c1561390d28bf2f92654d819659ba510 ↗
- https://git.kernel.org/stable/c/530e29452b955c30cf2102fa4d07420dc6e0c953 ↗
- https://git.kernel.org/stable/c/0508a4e95ac1aefd851ceb97ea050d8abb93262c ↗
- https://git.kernel.org/stable/c/0beca868cde8742240cd0038141c30482d2b7eb8 ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html ↗