CVE-2024-35916: linux kernel Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: dma-buf: Fix NULL pointer dereference in sanitycheck() If due to a memory allocation failure mock_chain() returns NULL, it is passed to dma_fence_enable_sw_signaling() resulting in NULL pointer dereference there. Call dma_fence_enable_sw_signaling() only if mock_chain() succeeds. Found by Linux Verification Center (linuxtesting.org) with SVACE.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.1 — 6.1.85
linux	linux_kernel	6.2 — 6.6.26
linux	linux_kernel	6.7 — 6.8.5
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/0336995512cdab0c65e99e4cdd47c4606debe14e https://git.kernel.org/stable/c/156c226cbbdcf5f3bce7b2408a33b59fab7fae2c https://git.kernel.org/stable/c/2295bd846765c766701e666ed2e4b35396be25e6 https://git.kernel.org/stable/c/eabf131cba1db12005a68378305f13b9090a7a6b https://git.kernel.org/stable/c/0336995512cdab0c65e99e4cdd47c4606debe14e https://git.kernel.org/stable/c/156c226cbbdcf5f3bce7b2408a33b59fab7fae2c https://git.kernel.org/stable/c/2295bd846765c766701e666ed2e4b35396be25e6 https://git.kernel.org/stable/c/eabf131cba1db12005a68378305f13b9090a7a6b

Frequently Asked Questions

What is CVE-2024-35916? +

In the Linux kernel, the following vulnerability has been resolved: dma-buf: Fix NULL pointer dereference in sanitycheck() If due to a memory allocation failure mock_chain() returns NULL, it is passed to dma_fence_enable_sw_signaling() resulting in NULL pointer dereference there. Call dma_fence_enable_sw_signaling() only if mock_chain() succeeds. Found by Linux Verification Center (linuxtesting.org) with SVACE. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2024-35916? +

CVE-2024-35916 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-35916? +

CVE-2024-35916 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-35916? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-35916