| commit | 51635ad282ead58b9d164f07e1fb62a9456b427c | |
| author | Lennert Buytenhek <buytenh@wantstofly.org> | |
| Sat, 16 Sep 2006 09:50:22 +0000 (16 10:50 +0100) | ||
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | |
| Mon, 25 Sep 2006 09:25:26 +0000 (25 10:25 +0100) | ||
| tree | a7d9fb162d09aaf02da3dee89520b10c07d92c8b | treesnapshot (tar.gz zip) |
| parent | bf11d26cb96fe8221ef056eedab692e91634cc65 | commitdiff |
[ARM] 3813/1: prevent >= 4G /dev/mem mmap()
Prevent userland from mapping in physical address regions >= 4G by
checking for that in valid_mmap_phys_addr_range().
Unfortunately, we cannot override valid_mmap_phys_addr_range() without
also overriding valid_phys_addr_range(), so copy drivers/char/mem.c's
version of valid_phys_addr_range() over to arch/arm/mm/mmap.c as well.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Prevent userland from mapping in physical address regions >= 4G by
checking for that in valid_mmap_phys_addr_range().
Unfortunately, we cannot override valid_mmap_phys_addr_range() without
also overriding valid_phys_addr_range(), so copy drivers/char/mem.c's
version of valid_phys_addr_range() over to arch/arm/mm/mmap.c as well.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| arch/arm/mm/mmap.c | diffblobblamehistory | |
| include/asm-arm/io.h | diffblobblamehistory |