| commit | 14d6e289a89780377f8bb09de8926d3c62d763cd | [log] [tgz] |
|---|---|---|
| author | Mark Rutland <mark.rutland@arm.com> | Tue Jul 10 19:01:22 2018 +0100 |
| committer | Will Deacon <will.deacon@arm.com> | Mon Jul 23 14:49:14 2018 +0100 |
| tree | 7d8c11258a34c3d2576122ff5566c62456f98f59 | |
| parent | 11527b3e0b577513ea318f01e392ccf7feb9d2a4 [diff] |
arm64: fix possible spectre-v1 write in ptrace_hbp_set_event() It's possible for userspace to control idx. Sanitize idx when using it as an array index, to inhibit the potential spectre-v1 write gadget. Found by smatch. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>