Medium severity · published Oct 21, 2024
CVE-2024-47704
drm/amd/display: Check link_res->hpo_dp_link_enc before using it
5.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 6.6.55; 6.7 before 6.10.14; 6.11 before 6.11.2 · source: NVD
LI
Linux · Linux
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before 8c22a62288194f072eb3a51045b700fce1c18d9e; 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before be2ca7a2c1561390d28bf2f92654d819659ba510; 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before 530e29452b955c30cf2102fa4d07420dc6e0c953; 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before 0508a4e95ac1aefd851ceb97ea050d8abb93262c; 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before 0beca868cde8742240cd0038141c30482d2b7eb8; 4.15 · source: vendor
SC
SIMATIC CN 4100 · Siemens
before V5.0 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-47704
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-47704
Patch
https://git.kernel.org/stable/c/0508a4e95ac1aefd851ceb97ea050d8abb93262c
Patch
https://git.kernel.org/stable/c/0beca868cde8742240cd0038141c30482d2b7eb8
Patch
https://git.kernel.org/stable/c/530e29452b955c30cf2102fa4d07420dc6e0c953
git.kernel.org
https://git.kernel.org/stable/c/8c22a62288194f072eb3a51045b700fce1c18d9e
Patch
https://git.kernel.org/stable/c/be2ca7a2c1561390d28bf2f92654d819659ba510
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
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