diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2016-07-01 18:22:39 +0100 |
|---|---|---|
| committer | Sami Tolvanen <samitolvanen@google.com> | 2017-01-04 10:56:21 -0800 |
| commit | 17080bcf2c6ec3e34b36f68d7e4b37b55ff9d16f (patch) | |
| tree | 29ea37c75b269428a626b9155ba41c332b523665 /include/linux/timerqueue.h | |
| parent | 02ef7a8c3c9dedda83188574cd4d3071d307b814 (diff) | |
UPSTREAM: arm64: Handle faults caused by inadvertent user access with PAN enabled
When TTBR0_EL1 is set to the reserved page, an erroneous kernel access
to user space would generate a translation fault. This patch adds the
checks for the software-set PSR_PAN_BIT to emulate a permission fault
and report it accordingly.
Cc: Will Deacon <will.deacon@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Bug: 31432001
Change-Id: I87e48f6075f84878e4d26d4fadf6eaac49d2cb4e
(cherry picked from commit 786889636ad75296c213547d1ca656af4c59f390)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Diffstat (limited to 'include/linux/timerqueue.h')
0 files changed, 0 insertions, 0 deletions