diff options
| author | Catalin Marinas <[email protected]> | 2017-08-22 14:39:00 +0000 |
|---|---|---|
| committer | Will Deacon <[email protected]> | 2017-08-22 17:15:42 +0000 |
| commit | a067d94d37ed590fd17684d18c3edf52110d305a (patch) | |
| tree | a9a77b734e1d41672784140020add86574b48e08 /drivers/clocksource/timer-of.c | |
| parent | arm64: kaslr: ignore modulo offset when validating virtual displacement (diff) | |
| download | kernel-a067d94d37ed590fd17684d18c3edf52110d305a.tar.gz kernel-a067d94d37ed590fd17684d18c3edf52110d305a.zip | |
arm64: kaslr: Adjust the offset to avoid Image across alignment boundary
With 16KB pages and a kernel Image larger than 16MB, the current
kaslr_early_init() logic for avoiding mappings across swapper table
boundaries fails since increasing the offset by kimg_sz just moves the
problem to the next boundary.
This patch rounds the offset down to (1 << SWAPPER_TABLE_SHIFT) if the
Image crosses a PMD_SIZE boundary.
Fixes: afd0e5a87670 ("arm64: kaslr: Fix up the kernel image alignment")
Cc: Ard Biesheuvel <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Neeraj Upadhyay <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Diffstat (limited to 'drivers/clocksource/timer-of.c')
0 files changed, 0 insertions, 0 deletions