diff options
Diffstat (limited to 'gnu/packages/patches/qemu-CVE-2017-2615.patch')
| -rw-r--r-- | gnu/packages/patches/qemu-CVE-2017-2615.patch | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/gnu/packages/patches/qemu-CVE-2017-2615.patch b/gnu/packages/patches/qemu-CVE-2017-2615.patch deleted file mode 100644 index ede1f8c89d..0000000000 --- a/gnu/packages/patches/qemu-CVE-2017-2615.patch +++ /dev/null @@ -1,52 +0,0 @@ -http://git.qemu.org/?p=qemu.git;a=patch;h=62d4c6bd5263bb8413a06c80144fc678df6dfb64 -this patch is from qemu-git. - - -From 62d4c6bd5263bb8413a06c80144fc678df6dfb64 Mon Sep 17 00:00:00 2001 -From: Li Qiang <[email protected]> -Date: Wed, 1 Feb 2017 09:35:01 +0100 -Subject: [PATCH] cirrus: fix oob access issue (CVE-2017-2615) - -When doing bitblt copy in backward mode, we should minus the -blt width first just like the adding in the forward mode. This -can avoid the oob access of the front of vga's vram. - -Signed-off-by: Li Qiang <[email protected]> - -{ kraxel: with backward blits (negative pitch) addr is the topmost - address, so check it as-is against vram size ] - -Cc: [email protected] -Cc: P J P <[email protected]> -Cc: Laszlo Ersek <[email protected]> -Cc: Paolo Bonzini <[email protected]> -Cc: Wolfgang Bumiller <[email protected]> -Fixes: d3532a0db02296e687711b8cdc7791924efccea0 (CVE-2014-8106) -Signed-off-by: Gerd Hoffmann <[email protected]> -Message-id: [email protected] -Reviewed-by: Laszlo Ersek <[email protected]> ---- - hw/display/cirrus_vga.c | 7 +++---- - 1 file changed, 3 insertions(+), 4 deletions(-) - -diff --git a/hw/display/cirrus_vga.c b/hw/display/cirrus_vga.c -index 7db6409dc5..16f27e8ac5 100644 ---- a/hw/display/cirrus_vga.c -+++ b/hw/display/cirrus_vga.c -@@ -274,10 +274,9 @@ static bool blit_region_is_unsafe(struct CirrusVGAState *s, - { - if (pitch < 0) { - int64_t min = addr -- + ((int64_t)s->cirrus_blt_height-1) * pitch; -- int32_t max = addr -- + s->cirrus_blt_width; -- if (min < 0 || max > s->vga.vram_size) { -+ + ((int64_t)s->cirrus_blt_height - 1) * pitch -+ - s->cirrus_blt_width; -+ if (min < -1 || addr >= s->vga.vram_size) { - return true; - } - } else { --- -2.11.0 - |