What’s Vulnerable › Vulnerabilities

CVE-2022-49855: net: wwan: iosm: fix memory leak in ipc_pcie_read_bios_cfg

• 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: 2025-05-01 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: net: wwan: iosm: fix memory leak in ipc_pcie_read_bios_cfg ipc_pcie_read_bios_cfg() is using the acpi_evaluate_dsm() to obtain the wwan power state configuration from BIOS but is not freeing the acpi_object. The acpi_evaluate_dsm() returned acpi_object to be freed. Free the acpi_object after use.

Affected products

• Linux kernel: from 5.14 before 5.15.79; from 5.16 before 6.0.9; 6.1-rc1, 6.1-rc2, 6.1-rc3, 6.1-rc4 — fixed in 5.15.79, 6.0.9

How to fix

Upgrade to a fixed version: Linux kernel 5.15.79, 6.0.9. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/13b1ea861e8aeb701bcfbfe436b943efa2d44029
• https://git.kernel.org/stable/c/7560ceef4d2832a67e8781d924e129c7f542376f
• https://git.kernel.org/stable/c/d38a648d2d6cc7bee11c6f533ff9426a00c2a74c

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