From 05c19c4369b40357c726a224fe51a3f5ff21f9bd Mon Sep 17 00:00:00 2001 From: Kirill Korotaev Date: Sat, 11 Nov 2006 01:08:49 +0100 Subject: ia64/sparc: fix local DoS with corrupted ELFs (CVE-2006-4538) This patch prevents cross-region mappings on IA64 and SPARC which could lead to system crash. Adrian Bunk: Adapted to 2.6.16. Signed-Off-By: Kirill Korotaev Signed-off-by: Adrian Bunk --- include/asm-ia64/mman.h | 8 ++++++++ include/asm-sparc/mman.h | 8 ++++++++ include/asm-sparc64/mman.h | 8 ++++++++ 3 files changed, 24 insertions(+) (limited to 'include') diff --git a/include/asm-ia64/mman.h b/include/asm-ia64/mman.h index 6ba179f12718..c73b87832a1e 100644 --- a/include/asm-ia64/mman.h +++ b/include/asm-ia64/mman.h @@ -22,4 +22,12 @@ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ +#ifdef __KERNEL__ +#ifndef __ASSEMBLY__ +#define arch_mmap_check ia64_mmap_check +int ia64_mmap_check(unsigned long addr, unsigned long len, + unsigned long flags); +#endif +#endif + #endif /* _ASM_IA64_MMAN_H */ diff --git a/include/asm-sparc/mman.h b/include/asm-sparc/mman.h index 88d1886abf3b..b7dc40bc68f4 100644 --- a/include/asm-sparc/mman.h +++ b/include/asm-sparc/mman.h @@ -35,4 +35,12 @@ #define MADV_FREE 0x5 /* (Solaris) contents can be freed */ +#ifdef __KERNEL__ +#ifndef __ASSEMBLY__ +#define arch_mmap_check sparc_mmap_check +int sparc_mmap_check(unsigned long addr, unsigned long len, + unsigned long flags); +#endif +#endif + #endif /* __SPARC_MMAN_H__ */ diff --git a/include/asm-sparc64/mman.h b/include/asm-sparc64/mman.h index 6fd878e61435..8cc1860be630 100644 --- a/include/asm-sparc64/mman.h +++ b/include/asm-sparc64/mman.h @@ -35,4 +35,12 @@ #define MADV_FREE 0x5 /* (Solaris) contents can be freed */ +#ifdef __KERNEL__ +#ifndef __ASSEMBLY__ +#define arch_mmap_check sparc64_mmap_check +int sparc64_mmap_check(unsigned long addr, unsigned long len, + unsigned long flags); +#endif +#endif + #endif /* __SPARC64_MMAN_H__ */ -- cgit v1.2.3