What’s Vulnerable › Vulnerabilities

CVE-2024-56745: PCI: Fix reset_method_store() memory leak

• Severity: medium (CVSS 5.5 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: 2024-12-29 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: PCI: Fix reset_method_store() memory leak In reset_method_store(), a string is allocated via kstrndup() and assigned to the local "options". options is then used in with strsep() to find spaces: while ((name = strsep(&options, " ")) != NULL) { If there are no remaining spaces, then options is set to NULL by strsep(), so the subsequent kfree(options) doesn't free the memory allocated via kstrndup(). Fix by using a separate tmp_options to iterate with strsep() so options is preserved.

Affected products

• Linux kernel: from 5.15 before 5.15.174; from 5.16 before 6.1.120; from 6.2 before 6.6.64; from 6.7 before 6.11.11; from 6.12 before 6.12.2 — fixed in 5.15.174, 6.1.120, 6.11.11, 6.12.2, 6.6.64

How to fix

Upgrade to a fixed version: Linux kernel 5.15.174, 6.1.120, 6.11.11, 6.12.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2985b1844f3f3447f2d938eff1ef6762592065a5
• https://git.kernel.org/stable/c/403efb4457c0c8f8f51e904cc57d39193780c6bd
• https://git.kernel.org/stable/c/543d0eb40e45c6a51f1bff02f417b602e54472d5
• https://git.kernel.org/stable/c/8e098baf6bc3f3a6aefc383509aba07e202f7ee0
• https://git.kernel.org/stable/c/931d07ccffcc3614f20aaf602b31e89754e21c59
• https://git.kernel.org/stable/c/fe6fae61f3b993160aef5fe2b7141a83872c144f
• https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

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