Date: Thu, 30 Nov 2000 12:04:45 -0800 (PST) From: Alfred Perlstein <alfred@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern vfs_lookup.c Message-ID: <200011302004.eAUK4jV67483@freefall.freebsd.org>
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alfred 2000/11/30 12:04:45 PST
Modified files:
sys/kern vfs_lookup.c
Log:
This is a fix for a problem described in PR kern/19572. It was
recently discussed at -hackers. The problem is a null-pointer
dereference that happens in kern/vfs_lookup.c when accessing ".."
with a v_mount entry for the current directory vnode of NULL. This
happens when a volume is forcibly unmounted, and the vnode for a
working directory in the mounted volume is cleared.
PR: 23191
Submitted by: Thomas Moestl <tmoestl@gmx.net>
Revision Changes Path
1.41 +12 -2 src/sys/kern/vfs_lookup.c
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