ACK/Cmnt: [SRU Mantic 0/1] LP: #1983357 - 32-bit ASLR
Andrei Gherzan
andrei.gherzan at canonical.com
Thu Jan 25 11:00:22 UTC 2024
On 24/01/24 10:40PM, Thadeu Lima de Souza Cascardo wrote:
> [Impact]
> 32-bit programs on x86 are not mapped randomly anymore since mmapped files are
> now PMD-aligned.
>
> [Test case]
> aslr32 libs from qa-regression-testing was tested.
>
> [Potential regression]
> Programs may fail to load or to allocate memory or access mmapped
> databases, and others.
>
> [Extra testing]
> This was boot tested on x86, demonstrating that programs necessary to boot
> still work. Also, a 32-bit program allocating 2GiB succeeded.
>
>
> Thadeu Lima de Souza Cascardo (1):
> UBUNTU: [Config]: set ARCH_MMAP_RND_{COMPAT_, }BITS to the maximum
>
> debian.master/config/annotations | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
It looks good, but the bug targets Lunar, too, for this fix. Was that
missed in this submission or planned for a later one?
Acked-by: Andrei Gherzan <andrei.gherzan at canonical.com>
--
Andrei Gherzan
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