diff options
Diffstat (limited to 'app-emulation/qemu/files/qemu-2.10.1-CVE-2017-15289.patch')
| -rw-r--r-- | app-emulation/qemu/files/qemu-2.10.1-CVE-2017-15289.patch | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/app-emulation/qemu/files/qemu-2.10.1-CVE-2017-15289.patch b/app-emulation/qemu/files/qemu-2.10.1-CVE-2017-15289.patch deleted file mode 100644 index a4ad2d5e4359..000000000000 --- a/app-emulation/qemu/files/qemu-2.10.1-CVE-2017-15289.patch +++ /dev/null @@ -1,58 +0,0 @@ -From eb38e1bc3740725ca29a535351de94107ec58d51 Mon Sep 17 00:00:00 2001 -From: Gerd Hoffmann <kraxel@redhat.com> -Date: Wed, 11 Oct 2017 10:43:14 +0200 -Subject: [PATCH] cirrus: fix oob access in mode4and5 write functions - -Move dst calculation into the loop, so we apply the mask on each -interation and will not overflow vga memory. - -Cc: Prasad J Pandit <pjp@fedoraproject.org> -Reported-by: Niu Guoxiang <niuguoxiang@huawei.com> -Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> -Message-id: 20171011084314.21752-1-kraxel@redhat.com ---- - hw/display/cirrus_vga.c | 6 ++---- - 1 file changed, 2 insertions(+), 4 deletions(-) - -diff --git a/hw/display/cirrus_vga.c b/hw/display/cirrus_vga.c -index b4d579857a..bc32bf1e39 100644 ---- a/hw/display/cirrus_vga.c -+++ b/hw/display/cirrus_vga.c -@@ -2038,15 +2038,14 @@ static void cirrus_mem_writeb_mode4and5_8bpp(CirrusVGAState * s, - unsigned val = mem_value; - uint8_t *dst; - -- dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask); - for (x = 0; x < 8; x++) { -+ dst = s->vga.vram_ptr + ((offset + x) & s->cirrus_addr_mask); - if (val & 0x80) { - *dst = s->cirrus_shadow_gr1; - } else if (mode == 5) { - *dst = s->cirrus_shadow_gr0; - } - val <<= 1; -- dst++; - } - memory_region_set_dirty(&s->vga.vram, offset, 8); - } -@@ -2060,8 +2059,8 @@ static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s, - unsigned val = mem_value; - uint8_t *dst; - -- dst = s->vga.vram_ptr + (offset &= s->cirrus_addr_mask); - for (x = 0; x < 8; x++) { -+ dst = s->vga.vram_ptr + ((offset + 2 * x) & s->cirrus_addr_mask & ~1); - if (val & 0x80) { - *dst = s->cirrus_shadow_gr1; - *(dst + 1) = s->vga.gr[0x11]; -@@ -2070,7 +2069,6 @@ static void cirrus_mem_writeb_mode4and5_16bpp(CirrusVGAState * s, - *(dst + 1) = s->vga.gr[0x10]; - } - val <<= 1; -- dst += 2; - } - memory_region_set_dirty(&s->vga.vram, offset, 16); - } --- -2.13.6 - |