CVE-2007-3732 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 TRAC...
MediumCVSS 5.5
EPSS 0.38%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux-2.6 | = 2.6 before 2.6.23 | No fix listed |
| Linux kernel | >= 2.6.0, < 2.6.23 | 2.6.23 |
References
- security-tracker.debian.org third-party-advisory
- bugzilla.redhat.com issue-tracking patch third-party-advisory
- access.redhat.com third-party-advisory