What’s Vulnerable › Vulnerabilities

CVE-2024-40939: net: wwan: iosm: Fix tainted pointer delete is case of region creation fail

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-12 · updated 2026-06-17
• Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: net: wwan: iosm: Fix tainted pointer delete is case of region creation fail In case of region creation fail in ipc_devlink_create_region(), previously created regions delete process starts from tainted pointer which actually holds error code value. Fix this bug by decreasing region index before delete. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected products

• Linux kernel: from 5.16 before 6.1.95; from 6.2 before 6.6.35; from 6.7 before 6.9.6; 6.10-rc1, 6.10-rc2 — fixed in 6.1.95, 6.6.35, 6.9.6

How to fix

Upgrade to a fixed version: Linux kernel 6.1.95, 6.6.35, 6.9.6. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/040d9384870386eb5dc55472ac573ac7756b2050
• https://git.kernel.org/stable/c/37a438704d19bdbe246d51d3749b6b3a8fe65afd
• https://git.kernel.org/stable/c/b0c9a26435413b81799047a7be53255640432547
• https://git.kernel.org/stable/c/fe394d59cdae81389dbf995e87c83c1acd120597
• https://git.kernel.org/stable/c/040d9384870386eb5dc55472ac573ac7756b2050
• https://git.kernel.org/stable/c/37a438704d19bdbe246d51d3749b6b3a8fe65afd
• https://git.kernel.org/stable/c/b0c9a26435413b81799047a7be53255640432547
• https://git.kernel.org/stable/c/fe394d59cdae81389dbf995e87c83c1acd120597
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

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