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| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2006-09-16 13:50:22 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-09-25 13:25:26 +0400 |
| commit | 51635ad282ead58b9d164f07e1fb62a9456b427c (patch) | |
| tree | a7d9fb162d09aaf02da3dee89520b10c07d92c8b /arch/arm/mm/proc-xscale.S | |
| parent | bf11d26cb96fe8221ef056eedab692e91634cc65 (diff) | |
| download | linux-51635ad282ead58b9d164f07e1fb62a9456b427c.tar.xz | |
[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>
Diffstat (limited to 'arch/arm/mm/proc-xscale.S')
0 files changed, 0 insertions, 0 deletions