diff options
| author | David S. Miller <davem@davemloft.net> | 2008-05-07 02:24:28 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-05-07 02:24:28 -0700 |
| commit | 5816339310b2d9623cf413d33e538b45e815da5d (patch) | |
| tree | 268187469afc7e9eae439ef613f0c9f86f5e91ba | |
| parent | d45100f7b69e3d9cd0cd5e956b6ac2c78d460d07 (diff) | |
sparc: Fix mmap VA span checking.
We should not conditionalize VA range checks on MAP_FIXED.
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/sparc/kernel/sys_sparc.c | 3 | ||||
| -rw-r--r-- | arch/sparc64/kernel/sys_sparc.c | 4 |
2 files changed, 3 insertions, 4 deletions
diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c index f188b5dc9fd..e995491c443 100644 --- a/arch/sparc/kernel/sys_sparc.c +++ b/arch/sparc/kernel/sys_sparc.c @@ -223,8 +223,7 @@ int sparc_mmap_check(unsigned long addr, unsigned long len, unsigned long flags) { if (ARCH_SUN4C_SUN4 && (len > 0x20000000 || - ((flags & MAP_FIXED) && - addr < 0xe0000000 && addr + len > 0x20000000))) + (addr < 0xe0000000 && addr + len > 0x20000000))) return -EINVAL; /* See asm-sparc/uaccess.h */ diff --git a/arch/sparc64/kernel/sys_sparc.c b/arch/sparc64/kernel/sys_sparc.c index 8d4761f15fa..0dbc941f130 100644 --- a/arch/sparc64/kernel/sys_sparc.c +++ b/arch/sparc64/kernel/sys_sparc.c @@ -549,13 +549,13 @@ int sparc64_mmap_check(unsigned long addr, unsigned long len, if (len >= STACK_TOP32) return -EINVAL; - if ((flags & MAP_FIXED) && addr > STACK_TOP32 - len) + if (addr > STACK_TOP32 - len) return -EINVAL; } else { if (len >= VA_EXCLUDE_START) return -EINVAL; - if ((flags & MAP_FIXED) && invalid_64bit_range(addr, len)) + if (invalid_64bit_range(addr, len)) return -EINVAL; } |