VulnerabilityModified
CVE-2007-3732
Without this, "current" used in the window between iret_exc and the middle of error_code where %fs is reset, would crash.
MEDIUM 5.5EPSS 0.38%
Does this matter?
Lower severity and a low EPSS score (0.38%). Track it; it rarely justifies an emergency change on its own.
Description
In Linux 2.6 before 2.6.23, the TRACE_IRQS_ON function in iret_exc calls a C function without ensuring that the segments are set properly. The kernel's %fs needs to be restored before the call in TRACE_IRQS_ON and before enabling interrupts, so that "current" references work. Without this, "current" used in the window between iret_exc and the middle of error_code where %fs is reset, would crash.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.38% probability · 31th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/cve-2007-3732Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2007-3732Issue Tracking, Patch, Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2007-3732Third Party Advisory
- https://access.redhat.com/security/cve/cve-2007-3732Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2007-3732Issue Tracking, Patch, Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2007-3732Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.