Cyber Resilience

CVE-2024-49852

Memory Safety in Linux Kernel 5.14 – 5.15.168

Published
21 October 2024
Modified
03 November 2025
Patch / advisory
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0021 11th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2024-49852 is a high-severity Use After Free (CWE-416) vulnerability in Linux Linux Kernel. Its CVSS base score is 7.8 (High).

Operationally, ranked at the 11th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

In the Linux kernel, the following vulnerability has been resolved: scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del() The kref_put() function will call nport->release if the refcount drops to zero. The nport->release release function is _efc_nport_free() which frees…

more

"nport". But then we dereference "nport" on the next line which is a use after free. Re-order these lines to avoid the use after free.

CWE(s)

Related Threats

CVEs Like This One

CVE-2024-56554Same product: Linux Linux Kernel
CVE-2023-53500Same product: Linux Linux Kernel
CVE-2023-52777Same product: Linux Linux Kernel
CVE-2024-56772Same product: Linux Linux Kernel
CVE-2024-58060Same product: Linux Linux Kernel
CVE-2023-52800Same product: Linux Linux Kernel
CVE-2023-53645Same product: Linux Linux Kernel
CVE-2025-38022Same product: Linux Linux Kernel
CVE-2025-37777Same product: Linux Linux Kernel
CVE-2026-53011Same product: Linux Linux Kernel

Affected Assets

linux
linux kernel
5.14 — 5.15.168 · 5.16 — 6.1.113 · 6.2 — 6.6.54

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 3 hardening rules · 3 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V1.4.3

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-416

Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly incorporate memory-safety tooling and reviews that prevent most use-after-free defects.

ID.RA-01 partial match
prevents

Vulnerability identification processes can discover use-after-free issues via scanning or analysis but do not prevent their introduction.

PR.PS-02 partial match
prevents

Routine patching removes known use-after-free instances after they have been introduced in released software.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

detects

Security testing in development can detect use-after-free bugs before release.

prevents

Secure SDLC mandates memory-safety practices that reduce use-after-free defects.

prevents

Application security requirements can specify memory-management rules that mitigate use-after-free.

prevents

Secure architecture principles include memory-safety design choices that limit use-after-free exposure.

prevents

Secure coding standards directly prescribe avoidance of use-after-free patterns.

prevents

Change-management processes help ensure memory-safety fixes are deployed consistently.

References