Date: Fri, 5 Jun 1998 20:06:58 -0700 (PDT) From: Bruce Evans <bde@FreeBSD.ORG> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-sys@FreeBSD.ORG Subject: cvs commit: src/sys/kern subr_diskslice.c Message-ID: <199806060306.UAA06484@freefall.freebsd.org>
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bde 1998/06/05 20:06:57 PDT
Modified files:
sys/kern subr_diskslice.c
Log:
Don't attempt to copy the whole slices "struct" for DIOCGSLICEINFO.
The slices "struct" isn't really a struct; we allocate only part of
it in the fully dangerously dedicated case. Since the "struct" is
malloced, the page beyond it may not be mapped, so attempts to copy
it would crash. This problem became larger when the full struct was
bloated from < 1K to > 3K by the addition of (mostly unused) DEVFS
tokens some time before 2.2.0 was released.
Revision Changes Path
1.46 +3 -2 src/sys/kern/subr_diskslice.c
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