What’s Vulnerable › Vulnerabilities

CVE-2022-49757: EDAC/highbank: Fix memory leak in highbank_mc_probe()

• 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: 2025-03-27 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: EDAC/highbank: Fix memory leak in highbank_mc_probe() When devres_open_group() fails, it returns -ENOMEM without freeing memory allocated by edac_mc_alloc(). Call edac_mc_free() on the error handling path to avoid a memory leak. [ bp: Massage commit message. ]

Affected products

• Linux kernel: from 3.6 before 4.14.305; from 4.15 before 4.19.272; from 4.20 before 5.4.231; from 5.5 before 5.10.166; from 5.11 before 5.15.91; from 5.16 before 6.1.9 — fixed in 4.14.305, 4.19.272, 5.10.166, 5.15.91, 5.4.231, 6.1.9

How to fix

Upgrade to a fixed version: Linux kernel 4.14.305, 4.19.272, 5.10.166, 5.15.91. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0db40e23b56d217eebd385bebb64057ef764b2c7
• https://git.kernel.org/stable/c/329fbd260352a7b9a83781d8b8bd96f95844a51f
• https://git.kernel.org/stable/c/8d23f5d25264beb223ee79cdb530b88c237719fc
• https://git.kernel.org/stable/c/b7863ef8a8f0fee96b4eb41211f4918c0e047253
• https://git.kernel.org/stable/c/caffa7fed1397d1395052272c93900176de86557
• https://git.kernel.org/stable/c/e7a293658c20a7945014570e1921bf7d25d68a36
• https://git.kernel.org/stable/c/f1b3e23ed8df87d779ee86ac37f379e79a24169a

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