Security readout for executives and security teams
Plain-English summary
A Linux graphics-driver cleanup flaw can use an invalid variable while releasing scheduling context. On a vulnerable system, a low-privileged local user may be able to cause serious confidentiality, integrity, or availability impact. The issue is local, not described as remotely reachable, and the supplied sources provide upstream fixes.
Executive priority
Treat this as a high-priority, targeted kernel update. Prioritize exposed multi-user endpoints, developer systems, and untrusted-workload hosts using drm/panthor. Broad emergency action is not supported without evidence that the affected driver and vulnerable kernel are present.
Technical view
In drm/panthor tick_ctx_cleanup(), the second loop incorrectly reuses group after it points to a previously iterated list_head rather than a valid group. The fix obtains ptdev from the scheduler. The CVSS 3.1 score is 7.8 with local access, low complexity, low privileges, no user interaction, and high potential impact.
Likely exposure
Exposure requires an affected Linux kernel and execution of the drm/panthor path. The supplied version data references 6.10, 6.10.14, 6.11.3, and 6.12, but does not preserve clear range semantics. Confirm affected and fixed package versions with the applicable Linux distributor.
Exploitation context
The supplied record is not in CISA KEV and provides no evidence of active exploitation, public exploit code, or a demonstrated attack chain. Its local, low-privilege CVSS vector makes multi-user systems and hosts running untrusted local workloads more concerning than systems without local attacker access.
Researcher notes
CWE-908 and the patch description support an uninitialized or invalid-variable access during cleanup. The sources do not establish the precise reachable failure mode, exploitation reliability, affected hardware, or distribution-specific version boundaries. Assess reachability from the driver configuration and compare deployed kernel trees against all three stable fixes.
Mitigation direction
- Install a vendor-supported kernel containing the applicable cited stable fix.
- Check distributor guidance for exact affected and fixed package versions.
- Restrict untrusted local access until the corrected kernel is running.
- Prioritize systems where drm/panthor is present and actively used.
Validation and detection
- Inventory running kernel versions across potentially affected systems.
- Determine whether drm/panthor is built, loaded, or used on each host.
- Check kernel packages or source trees for the cited fix commits.
- Confirm the updated kernel is running after installation and reboot.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-908: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-50173 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/ac2ca5e5148a0d4d78ac01c2d8348d0757c7367fCVE reference, Linux
- https://git.kernel.org/stable/c/3bde05794497d5f426d4ea2ecb9868bf7721fb24CVE reference, Linux
- https://git.kernel.org/stable/c/282864cc5d3f144af0cdea1868ee2dc2c5110f0dCVE reference, Linux
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use of Uninitialized Resource
Use of Uninitialized Resource represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.