Security readout for executives and security teams
Plain-English summary
A Linux kernel error-handling bug can leave allocated memory unreleased when an allocation fails in an Industrial I/O helper. Repeated triggering could consume kernel memory and impair availability. The supplied severity is high at CVSS 7.8, although the technical description directly establishes a memory leak rather than confidentiality or integrity compromise.
Executive priority
Schedule accelerated remediation within the normal high-severity kernel patch cycle. Prioritize systems allowing untrusted local users or workloads and devices relying on affected IIO functionality. Emergency response is not supported by the supplied evidence because active exploitation is unreported and the described impact is a conditional memory leak.
Technical view
iio_gts_build_avail_scale_table() incorrectly handled cleanup after kcalloc failure. As the loop index decreased, the cleanup path could omit freeing per_time_scales[0] and per_time_gains[0]. The kernel fix changes the boundary check to include index zero. Exploitation requires local, low-privileged access according to the supplied CVSS vector.
Likely exposure
Exposure is limited to systems running affected Linux kernels where the relevant IIO GTS helper is present and its allocation-failure path can occur. The bundle lists 6.4, 6.6.60, 6.11.7, and 6.12 among affected version data, but does not provide enough range semantics for definitive version mapping.
Exploitation context
The CVE is not listed in CISA KEV, and the supplied sources provide no evidence of active exploitation or a public exploit. Triggering depends on a local context and an allocation failure in the affected path. The demonstrated consequence in the description is unreleased kernel memory; broader CVSS impacts are not technically explained.
Researcher notes
CWE-401 accurately describes the documented memory leak. The supplied CVSS 3.1 vector is local, low complexity, low privilege, no interaction, with high confidentiality, integrity, and availability impacts. However, the narrative only substantiates missed frees during allocation-failure cleanup, so claims beyond resource leakage require additional evidence. Exact affected ranges remain unclear from the flattened version list.
Mitigation direction
- Identify kernel versions and distributions on systems using Industrial I/O components.
- Apply a vendor-supported kernel update incorporating the referenced stable fix.
- Consult distribution advisories to resolve the bundle's ambiguous affected-version boundaries.
- Prioritize exposed multi-user or untrusted-workload systems where local access is available.
Validation and detection
- Compare installed kernel builds against vendor advisories and referenced stable commits.
- Confirm the deployed kernel contains the corrected cleanup boundary check.
- Inventory whether relevant IIO GTS drivers or modules are enabled or used.
- Monitor kernel memory pressure and allocation failures for unexplained recurring degradation.
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-401: 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-2024-53076 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/62c11896683129790b8f5ab6eb7e695818b0b723CVE reference, Linux
- https://git.kernel.org/stable/c/b304362ce836968b803e5d4c5f84dcb51a7bf0f2CVE reference, Linux
- https://git.kernel.org/stable/c/369f05688911b05216cfcd6ca74473bec87948d7CVE 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.
Missing Release of Memory after Effective Lifetime
Missing Release of Memory after Effective Lifetime represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.