CVE-2025-21694: fs/proc: fix softlockup in __read_vmcore (part 2)
fs/proc: fix softlockup in readvmcore (part 2)
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1 - Upgrade
Upgrade
debian/linux-6.1to a version that resolves this vulnerability.Fixed in 6.1.129-1~deb11u1 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.76.1-1 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 5.15.180.1-1
Event History
Frequently Asked Questions
What is the severity of CVE-2025-21694?
CVE-2025-21694 has been classified with a moderate severity level due to the risk of soft lockups during kdump operations.
How do I fix CVE-2025-21694?
To address CVE-2025-21694, it is recommended to update the Linux kernel to the latest stable version where the vulnerability has been resolved.
What systems are affected by CVE-2025-21694?
CVE-2025-21694 affects the Linux kernel across various distributions that utilize the kernel's proc filesystem.
What are the potential impacts of CVE-2025-21694?
The potential impacts of CVE-2025-21694 include system instability and hangs during memory dump operations.
When was CVE-2025-21694 reported?
CVE-2025-21694 was reported and subsequently addressed after encountering issues in the Linux kernel related to softlockups during kdump.