What’s Vulnerable › Vulnerabilities

CVE-2023-52687: crypto: safexcel - Add error handling for dma_map_sg() calls

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-17 · updated 2026-08-04
• Weakness: CWE-252

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: safexcel - Add error handling for dma_map_sg() calls Macro dma_map_sg() may return 0 on error. This patch enables checks in case of the macro failure and ensures unmapping of previously mapped buffers with dma_unmap_sg(). Found by Linux Verification Center (linuxtesting.org) with static analysis tool SVACE.

Affected products

• Linux kernel: from 6.1 before 6.1.75; from 6.2 before 6.6.14; from 6.7 before 6.7.2 — fixed in 6.1.75, 6.6.14, 6.7.2

How to fix

Upgrade to a fixed version: Linux kernel 6.1.75, 6.6.14, 6.7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4c0ac81a172a69a7733290915276672787e904ec
• https://git.kernel.org/stable/c/8084b788c2fb1260f7d44c032d5124680b20d2b2
• https://git.kernel.org/stable/c/87e02063d07708cac5bfe9fd3a6a242898758ac8
• https://git.kernel.org/stable/c/fc0b785802b856566df3ac943e38a072557001c4
• https://git.kernel.org/stable/c/4c0ac81a172a69a7733290915276672787e904ec
• https://git.kernel.org/stable/c/8084b788c2fb1260f7d44c032d5124680b20d2b2
• https://git.kernel.org/stable/c/87e02063d07708cac5bfe9fd3a6a242898758ac8
• https://git.kernel.org/stable/c/fc0b785802b856566df3ac943e38a072557001c4

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