diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.9.21/0026-kaiser-fix-unlikely-error-in-alloc_ldt_struct.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.9.21/0026-kaiser-fix-unlikely-error-in-alloc_ldt_struct.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.9.21/0026-kaiser-fix-unlikely-error-in-alloc_ldt_struct.patch b/common/recipes-kernel/linux/linux-yocto-4.9.21/0026-kaiser-fix-unlikely-error-in-alloc_ldt_struct.patch new file mode 100644 index 00000000..31eb38e9 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.9.21/0026-kaiser-fix-unlikely-error-in-alloc_ldt_struct.patch @@ -0,0 +1,35 @@ +From d77e639ab3d037d8a309b107452491b7ec4b887c Mon Sep 17 00:00:00 2001 +From: Hugh Dickins <hughd@google.com> +Date: Mon, 4 Dec 2017 20:13:35 -0800 +Subject: [PATCH 026/102] kaiser: fix unlikely error in alloc_ldt_struct() + +An error from kaiser_add_mapping() here is not at all likely, but +Eric Biggers rightly points out that __free_ldt_struct() relies on +new_ldt->size being initialized: move that up. + +Signed-off-by: Hugh Dickins <hughd@google.com> +Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> +--- + arch/x86/kernel/ldt.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c +index 8331bad..536e6ab 100644 +--- a/arch/x86/kernel/ldt.c ++++ b/arch/x86/kernel/ldt.c +@@ -78,11 +78,11 @@ static struct ldt_struct *alloc_ldt_struct(int size) + + ret = kaiser_add_mapping((unsigned long)new_ldt->entries, alloc_size, + __PAGE_KERNEL); ++ new_ldt->size = size; + if (ret) { + __free_ldt_struct(new_ldt); + return NULL; + } +- new_ldt->size = size; + return new_ldt; + } + +-- +2.7.4 + |