Integrated: 8329656: assertion failed in MAP_ARCHIVE_MMAP_FAILURE path: Invalid immediate -5 0

Thomas Stuefe stuefe at openjdk.org
Thu Apr 11 05:26:45 UTC 2024


On Tue, 9 Apr 2024 15:06:40 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

> It fixes an embarrassing OOB memory access when rolling the dice to get a random class space location on aarch64.
> 
> Thanks to @calvinccheung for finding this bug.
> 
> The fix is to make all relevant variables unsigned, thus preventing negative overflow.

This pull request has now been integrated.

Changeset: d9c84e76
Author:    Thomas Stuefe <stuefe at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/d9c84e763a0880d33586dbb8dc90b66ede030444
Stats:     4 lines in 1 file changed: 0 ins; 0 del; 4 mod

8329656: assertion failed in MAP_ARCHIVE_MMAP_FAILURE path: Invalid immediate -5 0

Reviewed-by: ccheung, iklam

-------------

PR: https://git.openjdk.org/jdk/pull/18698


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