diff options
| author | Mark Rutland <mark.rutland@arm.com> | 2018-04-23 11:41:33 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2018-04-23 17:27:20 +0100 |
| commit | 71c751f2a43fa03fae3cf5f0067ed3001a397013 (patch) | |
| tree | 995bc77185edac2f6fd7cc5e00fcdae4eb99859e /lib/test_overflow.c | |
| parent | 6d08b06e67cd117f6992c46611dfb4ce267cd71e (diff) | |
arm64: add sentinel to kpti_safe_list
We're missing a sentinel entry in kpti_safe_list. Thus is_midr_in_range_list()
can walk past the end of kpti_safe_list. Depending on the contents of memory,
this could erroneously match a CPU's MIDR, cause a data abort, or other bad
outcomes.
Add the sentinel entry to avoid this.
Fixes: be5b299830c63ed7 ("arm64: capabilities: Add support for checks based on a list of MIDRs")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Tested-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'lib/test_overflow.c')
0 files changed, 0 insertions, 0 deletions