CVE-2024-49907
drm/amd/display: Check null pointers before using dc->clk_mgr
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check null pointers before using dc->clk_mgr [WHY & HOW] dc->clk_mgr is null checked previously in the same function, indicating it might be null. Passing "dc" to "dc->hwss.apply_idle_power_optimizations", which dereferences null "dc->clk_mgr". (The function pointer resolves to "dcn35_apply_idle_power_optimizations".) This fixes 1 FORWARD_NULL issue reported by Coverity.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.15
References 7
git.kernel.org
- stable/c/8d54001f8dccd56146973f23f3ab2ba037a21251
- stable/c/a545a9403e04c6e17fdc04a26a61d9feebbba106
- stable/c/a2773e0a4b79e7a6463abdffaf8cc4f24428ba18
- stable/c/9641bc4adf8446034e490ed543ae7e9833cfbdf5
- stable/c/3f7e533c10db3d0158709a99e2129ff63add6bcd
- stable/c/5ba3fbf75b243b2863a8be9e7c393e003d3b88f3
- stable/c/95d9e0803e51d5a24276b7643b244c7477daf463