CVE-2025-21694 — Linux vulnerability

68 documents7 sources
Severity
5.5MEDIUMNVD
OSV7.8OSV5.9
EPSS
0.0%
top 99.35%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
8
LinuxLinux KernelDebian Linux+5 more
Timeline
PublishedFeb 12
Latest updateJul 17

Description

In the Linux kernel, the following vulnerability has been resolved: fs/proc: fix softlockup in __read_vmcore (part 2) Since commit 5cbcb62dddf5 ("fs/proc: fix softlockup in __read_vmcore") the number of softlockups in __read_vmcore at kdump time have gone down, but they still happen sometimes. In a memory constrained environment like the kdump image, a softlockup is not just a harmless message, but it can interfere with things like RCU freeing memory, causing the crashdump to get stuck. The …

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages10 packages

▶NVDlinux/linux_kernel4.19.317 — 4.20+7
▶Debianlinux/linux_kernel< 5.10.234-1+3
▶Ubuntulinux/linux_kernel< 5.4.0-211.231+2

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

34
OSV
linux-hwe-6.8 vulnerabilities↗2025-07-17
▶
OSV
linux-gcp, linux-gcp-6.8 vulnerabilities↗2025-06-30
▶
OSV
linux-oracle, linux-oracle-6.8, linux-raspi vulnerabilities↗2025-06-26
▶
OSV
linux-raspi-realtime vulnerabilities↗2025-06-25
▶
OSV
linux-azure-nvidia vulnerabilities↗2025-06-25
▶

📋Vendor Advisories

33
Ubuntu
Linux kernel (HWE) vulnerabilities↗2025-07-17
▶
Ubuntu
Linux kernel vulnerabilities↗2025-06-30
▶
Ubuntu
Linux kernel (Azure, N-Series) vulnerabilities↗2025-06-25
▶
Ubuntu
Linux kernel (Raspberry Pi Real-time) vulnerabilities↗2025-06-25
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2025-06-24
▶
CVE-2025-21694 — Linux vulnerability | cvebase