CVE-2007-3732

Medium

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.

SeverityMedium
CVSS5.5
Exploit probability—
ProductLinux Kernel
PublishedNov 7, 2019
First seenNov 7, 2019

How to fix

Update
  • linux linux_kernel2.6.23 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel2.6.0 ≤ v < 2.6.232.6.23

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