diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/0017_let_st_pointer_dma_function_propagate_MemTxResult.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/0017_let_st_pointer_dma_function_propagate_MemTxResult.patch | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/0017_let_st_pointer_dma_function_propagate_MemTxResult.patch b/meta/recipes-devtools/qemu/qemu/0017_let_st_pointer_dma_function_propagate_MemTxResult.patch new file mode 100644 index 0000000000..3fc7b631a4 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/0017_let_st_pointer_dma_function_propagate_MemTxResult.patch @@ -0,0 +1,65 @@ +From 24aed6bcb6b6d266149591f955c2460c28759eb4 Mon Sep 17 00:00:00 2001 +From: =?utf8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@redhat.com> +Date: Fri, 17 Dec 2021 23:56:14 +0100 +Subject: [PATCH] dma: Let st*_dma() propagate MemTxResult +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf8 +Content-Transfer-Encoding: 8bit + +dma_memory_write() returns a MemTxResult type. Do not discard +it, return it to the caller. + +CVE: CVE-2021-3611 +Upstream-Status: Backport [https://git.qemu.org/?p=qemu.git;a=commit;h=24aed6bcb6b6d266149591f955c2460c28759eb4] + +Reviewed-by: Richard Henderson <richard.henderson@linaro.org> +Reviewed-by: Cédric Le Goater <clg@kaod.org> +Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> +Message-Id: <20211223115554.3155328-18-philmd@redhat.com> +Signed-off-by: Bhabu Bindu <bhabu.bindu@kpit.com> +--- + include/sysemu/dma.h | 20 ++++++++++---------- + 1 file changed, 10 insertions(+), 10 deletions(-) + +diff --git a/include/sysemu/dma.h b/include/sysemu/dma.h +index d1635f5..895044d 100644 +--- a/include/sysemu/dma.h ++++ b/include/sysemu/dma.h +@@ -248,13 +248,13 @@ static inline void dma_memory_unmap(AddressSpace *as, + dma_memory_read(as, addr, &val, (_bits) / 8, attrs); \ + return _end##_bits##_to_cpu(val); \ + } \ +- static inline void st##_sname##_##_end##_dma(AddressSpace *as, \ +- dma_addr_t addr, \ +- uint##_bits##_t val, \ +- MemTxAttrs attrs) \ +- { \ +- val = cpu_to_##_end##_bits(val); \ +- dma_memory_write(as, addr, &val, (_bits) / 8, attrs); \ ++ static inline MemTxResult st##_sname##_##_end##_dma(AddressSpace *as, \ ++ dma_addr_t addr, \ ++ uint##_bits##_t val, \ ++ MemTxAttrs attrs) \ ++ { \ ++ val = cpu_to_##_end##_bits(val); \ ++ return dma_memory_write(as, addr, &val, (_bits) / 8, attrs); \ + } + + static inline uint8_t ldub_dma(AddressSpace *as, dma_addr_t addr, MemTxAttrs attrs) +@@ -265,10 +265,10 @@ static inline uint8_t ldub_dma(AddressSpace *as, dma_addr_t addr, MemTxAttrs att + return val; + } + +-static inline void stb_dma(AddressSpace *as, dma_addr_t addr, +- uint8_t val, MemTxAttrs attrs) ++static inline MemTxResult stb_dma(AddressSpace *as, dma_addr_t addr, ++ uint8_t val, MemTxAttrs attrs) + { +- dma_memory_write(as, addr, &val, 1, attrs); ++ return dma_memory_write(as, addr, &val, 1, attrs); + } + + DEFINE_LDST_DMA(uw, w, 16, le); +-- +1.8.3.1 + |