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| author |   fgsch <fgsch@openbsd.org> | 2001-05-08 19:29:37 +0000 |
|---|---|---|
| committer | fgsch <fgsch@openbsd.org> | 2001-05-08 19:29:37 +0000 |
| commit | 5109992fdd54524851e7f7777ecb481f2d795fba (patch) | |
| tree | ac9f1da3c8c50cfdc8f4180414fa4e1ac2bd37b5 | |
| parent | adds correct error reporting to async connect()s (diff) | |
| download | wireguard-openbsd-5109992fdd54524851e7f7777ecb481f2d795fba.tar.xz wireguard-openbsd-5109992fdd54524851e7f7777ecb481f2d795fba.zip | |
In extent_alloc_subregion1, be sure that the region returned don't run
past the end of the subregion; art@ok, deraadt@ok.
| -rw-r--r-- | sys/kern/subr_extent.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/kern/subr_extent.c b/sys/kern/subr_extent.c index 60dfa87a94b..c853908984f 100644 --- a/sys/kern/subr_extent.c +++ b/sys/kern/subr_extent.c @@ -1,4 +1,4 @@ -/* $OpenBSD: subr_extent.c,v 1.12 2001/01/17 02:48:17 deraadt Exp $ */ +/* $OpenBSD: subr_extent.c,v 1.13 2001/05/08 19:29:37 fgsch Exp $ */ /* $NetBSD: subr_extent.c,v 1.7 1996/11/21 18:46:34 cgd Exp $ */ /*- @@ -711,6 +711,13 @@ extent_alloc_subregion1(ex, substart, subend, size, alignment, skew, boundary, */ goto fail; } + + /* + * Check that the current region don't run past the + * end of the subregion. + */ + if (!LE_OV(newstart, (size - 1), subend)) + goto fail; last = rp; } |