Date: Sun, 23 Jul 2000 09:54:19 -0700 (PDT) From: Marcel Moolenaar <marcel@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/linux linux_misc.c linux_util.c linux_util.h Message-ID: <200007231654.JAA35253@freefall.freebsd.org>
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marcel 2000/07/23 09:54:19 PDT
Modified files:
sys/i386/linux linux_misc.c linux_util.c linux_util.h
Log:
Add bounds checking to stackgap_alloc. Previously it was possible
to construct a path that was long enough (ie longer than
SPARE_USRSPACE bytes) and trash the stack.
Note that SPARE_USRSPACE is much smaller than MAXPATHLEN so that
the Linuxulator will now return ENAMETOOLONG even if the path
is smaller than MAXPATHLEN.
PR: 12749
Revision Changes Path
1.82 +3 -1 src/sys/i386/linux/linux_misc.c
1.11 +5 -2 src/sys/i386/linux/linux_util.c
1.11 +9 -11 src/sys/i386/linux/linux_util.h
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