diff options
| author |   Arvind Sankar <nivedita@alum.mit.edu> | 2020-07-28 18:57:06 -0400 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2020-07-31 11:08:17 +0200 |
| commit | 8d1cf8595860f4807f4ff1f8f1fc53e7576e0d71 (patch) | |
| tree | aea6bdd9a10128f3fb102d05cdc615fe3f03d25a | |
| parent | x86/kaslr: Initialize mem_limit to the real maximum address (diff) | |
| download | wireguard-linux-8d1cf8595860f4807f4ff1f8f1fc53e7576e0d71.tar.xz wireguard-linux-8d1cf8595860f4807f4ff1f8f1fc53e7576e0d71.zip | |
x86/kaslr: Fix off-by-one error in __process_mem_region()
In case of an overlap, the beginning of the region should be used even
if it is exactly image_size, not just strictly larger.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20200728225722.67457-6-nivedita@alum.mit.edu
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/boot/compressed/kaslr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c index da45e66cb6e4..848346fc0dbb 100644 --- a/arch/x86/boot/compressed/kaslr.c +++ b/arch/x86/boot/compressed/kaslr.c @@ -669,7 +669,7 @@ static void __process_mem_region(struct mem_vector *entry, } /* Store beginning of region if holds at least image_size. */ - if (overlap.start > region.start + image_size) { + if (overlap.start >= region.start + image_size) { struct mem_vector beginning; beginning.start = region.start; |