tree bcc0f5d3affbbaab3ea4ed3d51ea29c45b084359
parent b9194d822679effaf1a31abf3dacd1f00c3c1ace
author Kunqiu Chen <camsyn@foxmail.com> 1750229613 +0800
committer Copybara-Service <copybara-worker@google.com> 1750229732 -0700

[MSan] Fix wrong unpoison size in SignalAction (#144071)

MSan should unpoison the parameters of extended signal handlers.
However, MSan unpoisoned the second parameter with the wrong size
`sizeof(__sanitizer_sigaction)`, inconsistent with its real type
`siginfo_t`.

This commit fixes this issue by correcting the size to
`sizeof(__sanitizer_siginfo)`.

GitOrigin-RevId: 10f29a607205c0c17ee9249a66feb63f0fdae182