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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-12-05 13:42:07 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-12-15 11:51:02 (GMT) |
| commit | c014953d84ec21a4df9a43be2378861ea6e9246e (patch) | |
| tree | 72af8d8752c59bc9c59c96c70616a911f4a107a1 /arch/arm/mm | |
| parent | 77f1b959b0b6db7a7941b4b4f9d3d287c67d7c15 (diff) | |
| download | linux-c014953d84ec21a4df9a43be2378861ea6e9246e.tar.xz | |
ARM: fix uaccess_with_memcpy() with SW_DOMAIN_PAN
The uaccess_with_memcpy() code is currently incompatible with the SW
PAN code: it takes locks within the region that we've changed the DACR,
potentially sleeping as a result. As we do not save and restore the
DACR across co-operative sleep events, can lead to an incorrect DACR
value later in this code path.
Reported-by: Peter Rosin <peda@axentia.se>
Tested-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm')
0 files changed, 0 insertions, 0 deletions