What’s Vulnerable › Vulnerabilities

CVE-2010-2243

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-07 · updated 2026-06-16
• Weakness: CWE-20

Description

A vulnerability exists in kernel/time/clocksource.c in the Linux kernel before 2.6.34 where on non-GENERIC_TIME systems (GENERIC_TIME=n), accessing /sys/devices/system/clocksource/clocksource0/current_clocksource results in an OOPS.

Affected products

• Linux kernel: before 2.6.33 — fixed in 2.6.33

How to fix

Upgrade to a fixed version: Linux kernel 2.6.33. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/security/cve/cve-2010-2243
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ad6759fbf35d104dbf573cd6f4c6784ad6823f7e
• https://security-tracker.debian.org/tracker/CVE-2010-2243
• https://www.openwall.com/lists/oss-security/2010/06/25/1
• https://access.redhat.com/security/cve/cve-2010-2243
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ad6759fbf35d104dbf573cd6f4c6784ad6823f7e
• https://security-tracker.debian.org/tracker/CVE-2010-2243
• https://www.openwall.com/lists/oss-security/2010/06/25/1

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