CVE-2024-27077: media: v4l2-mem2mem: fix a memleak in v4l2_m2m_register_entity
In the Linux kernel, the following vulnerability has been resolved:
media: v4l2-mem2mem: fix a memleak in v4l2_m2m_register_entity
The entity->name (i.e. name) is allocated in v4l2_m2m_register_entity
but isn't freed in its following error-handling paths. This patch
adds such deallocation to prevent memleak of entity->name.
Security readout for executives and security teams
Plain-English summary
CVE-2024-27077 is a Linux kernel memory leak in the V4L2 mem2mem media subsystem. The reported bug is failure to free an allocated entity name during error handling. Public sources do not provide CVSS, impact scoring, or confirmed active exploitation, so business urgency depends on kernel exposure and vendor patch availability.
Executive priority
Handle through normal kernel patch governance unless vendor guidance elevates impact for a specific product. There is no provided evidence of exploitation or high-severity scoring, but kernel flaws still merit inclusion in routine maintenance windows.
Technical view
The Linux kernel fix frees entity->name in v4l2_m2m_register_entity error paths. The source lists Linux kernel versions around 4.19 through 6.9 as affected and references multiple stable-branch commits. No CWE, CVSS vector, privilege requirement, or exploitability details are provided in the supplied sources.
Likely exposure
Exposure is most likely on Linux systems using affected kernels with V4L2 mem2mem media functionality present. The supplied data does not identify specific distributions beyond Debian LTS advisories or specific device models beyond a Siemens advisory reference.
Exploitation context
No supplied source states active exploitation, and KEV status is false. The available evidence describes a memory leak fixed in kernel error handling, not a public exploit path. Treat exploitation context as unconfirmed and incomplete.
Researcher notes
Evidence is narrow: the CVE text identifies a memory leak and the fix action, but not attack preconditions, reachable drivers, or measurable security impact. Avoid asserting denial of service or privilege impact without vendor-specific confirmation.
Mitigation direction
Inventory Linux kernel versions across servers, appliances, and embedded devices.
Check distribution, device vendor, and Siemens guidance for applicable kernel fixes.
Apply kernel updates containing the referenced stable commits when available.
Prioritize systems with media, video, or embedded Linux workloads.
Track Debian LTS advisories if using Debian-based systems.
Validation and detection
Confirm running kernel versions against vendor advisory status.
Verify patched builds include the relevant stable kernel commit for the branch.
Check whether V4L2 mem2mem media drivers are present or used.
Review vulnerability scanner findings for CVE-2024-27077 against actual kernel packages.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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
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CVE-2024-27077 mapping review
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