CVE-2007-3732 (GCVE-0-2007-3732)

Vulnerability from cvelistv5 – Published: 2019-11-07 21:31 – Updated: 2024-08-07 14:28
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
  • Reset %fs early in iret_exc
Assigner
References
Impacted products
Vendor Product Version
linux-2.6 linux-2.6 Affected: 2.6 before 2.6.23
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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