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CVS commit: src/sys/arch/i386/i386
Module Name: src
Committed By: maxv
Date: Wed May 16 08:16:36 UTC 2018
src/sys/arch/i386/i386: i386_trap.S trap.c
Mitigation for CVE-2018-8897 on i386. Contrary to amd64 there is no clear
way to determine if we are in kernel mode but with the user context; so we
go the hard way, and scan the IDT.
On i386 the bug is less of a problem, since we don't have GSBASE. All an
attacker can do is panicking the system.
To generate a diff of this commit:
cvs rdiff -u -r1.13 -r1.14 src/sys/arch/i386/i386/i386_trap.S
cvs rdiff -u -r1.293 -r1.294 src/sys/arch/i386/i386/trap.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
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