diff options
Diffstat (limited to 'gnu/packages/patches/qemu-CVE-2015-8743.patch')
| -rw-r--r-- | gnu/packages/patches/qemu-CVE-2015-8743.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/gnu/packages/patches/qemu-CVE-2015-8743.patch b/gnu/packages/patches/qemu-CVE-2015-8743.patch new file mode 100644 index 0000000000..4a9d0e2f2d --- /dev/null +++ b/gnu/packages/patches/qemu-CVE-2015-8743.patch @@ -0,0 +1,48 @@ +From aa7f9966dfdff500bbbf1956d9e115b1fa8987a6 Mon Sep 17 00:00:00 2001 +From: Prasad J Pandit <pjp@fedoraproject.org> +Date: Thu, 31 Dec 2015 17:05:27 +0530 +Subject: [PATCH] net: ne2000: fix bounds check in ioport operations + +While doing ioport r/w operations, ne2000 device emulation suffers +from OOB r/w errors. Update respective array bounds check to avoid +OOB access. + +Reported-by: Ling Liu <liuling-it@360.cn> +Cc: qemu-stable@nongnu.org +Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> +Signed-off-by: Jason Wang <jasowang@redhat.com> +--- + hw/net/ne2000.c | 10 ++++++---- + 1 file changed, 6 insertions(+), 4 deletions(-) + +diff --git a/hw/net/ne2000.c b/hw/net/ne2000.c +index 010f9ef..a3dffff 100644 +--- a/hw/net/ne2000.c ++++ b/hw/net/ne2000.c +@@ -467,8 +467,9 @@ static inline void ne2000_mem_writel(NE2000State *s, uint32_t addr, + uint32_t val) + { + addr &= ~1; /* XXX: check exact behaviour if not even */ +- if (addr < 32 || +- (addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) { ++ if (addr < 32 ++ || (addr >= NE2000_PMEM_START ++ && addr + sizeof(uint32_t) <= NE2000_MEM_SIZE)) { + stl_le_p(s->mem + addr, val); + } + } +@@ -497,8 +498,9 @@ static inline uint32_t ne2000_mem_readw(NE2000State *s, uint32_t addr) + static inline uint32_t ne2000_mem_readl(NE2000State *s, uint32_t addr) + { + addr &= ~1; /* XXX: check exact behaviour if not even */ +- if (addr < 32 || +- (addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) { ++ if (addr < 32 ++ || (addr >= NE2000_PMEM_START ++ && addr + sizeof(uint32_t) <= NE2000_MEM_SIZE)) { + return ldl_le_p(s->mem + addr); + } else { + return 0xffffffff; +-- +2.6.3 + |