SB20260816310 - Improper control of a resource through its lifetime in Linux kernel asm dec
Published: August 16, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-72215)
CWE-ID: CWE-664 - Improper control of a resource through its lifetime
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to incorrect stack handling in prom_printf() when calling 32-bit firmware code from a kernel thread in 64-bit MIPS configurations. A local user can trigger console output during system bootstrap to cause a denial of service.
The issue occurs when the initial console remains in use late into bootstrap, causing the kernel to hang before startup completes.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1ed18b5c3be9657fe288fa4dae0bef2470598683
- https://git.kernel.org/stable/c/27857db30c98583e12dd8d939ba2370bce08a5be
- https://git.kernel.org/stable/c/3394757c5d3970ab36d2aafa6dd40952b43f0d16
- https://git.kernel.org/stable/c/3ae86630b94f72bf4012c6322f81f622dc4fdf24
- https://git.kernel.org/stable/c/5ff79e8bdc75db51e30298a75939e2308e7658e0
- https://git.kernel.org/stable/c/9cd4a8ed12d2a6313592e43c14cca5eca6717bee
- https://git.kernel.org/stable/c/d3fd2d358df0ca712183509cbbed6a16bde1d17e
- https://git.kernel.org/stable/c/d828bca84311e278093e60b2864a54f4bbb0c2ad