What’s Vulnerable › Vulnerabilities

CVE-2024-38585: tools/nolibc/stdlib: fix memory error in realloc()

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-19 · updated 2026-06-17
• Weakness: CWE-125

Description

In the Linux kernel, the following vulnerability has been resolved: tools/nolibc/stdlib: fix memory error in realloc() Pass user_p_len to memcpy() instead of heap->len to prevent realloc() from copying an extra sizeof(heap) bytes from beyond the allocated region.

Affected products

• Linux kernel: from 5.19 before 6.1.93; from 6.2 before 6.6.33; from 6.7 before 6.8.12; from 6.9 before 6.9.3 — fixed in 6.1.93, 6.6.33, 6.8.12, 6.9.3

How to fix

Upgrade to a fixed version: Linux kernel 6.1.93, 6.6.33, 6.8.12, 6.9.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4e6f225aefeb712cdb870176b6621f02cf235b8c
• https://git.kernel.org/stable/c/5996b2b2dac739f2a27da13de8eee5b85b2550b3
• https://git.kernel.org/stable/c/791f4641142e2aced85de082e5783b4fb0b977c2
• https://git.kernel.org/stable/c/8019d3dd921f39a237a9fab6d2ce716bfac0f983
• https://git.kernel.org/stable/c/f678c3c336559cf3255a32153e9a17c1be4e7c15
• https://git.kernel.org/stable/c/4e6f225aefeb712cdb870176b6621f02cf235b8c
• https://git.kernel.org/stable/c/5996b2b2dac739f2a27da13de8eee5b85b2550b3
• https://git.kernel.org/stable/c/791f4641142e2aced85de082e5783b4fb0b977c2
• https://git.kernel.org/stable/c/8019d3dd921f39a237a9fab6d2ce716bfac0f983
• https://git.kernel.org/stable/c/f678c3c336559cf3255a32153e9a17c1be4e7c15

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