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Message-ID: <CAA2zVHpSiKgq8tBpjy5Zjbb1UtoJ++UtT8EvFDJqFmb+mtDLBQ@mail.gmail.com>
Date: Tue, 9 Jul 2019 15:01:50 -0400
From: James Y Knight <jyknight@...gle.com>
To: musl@...ts.openwall.com
Subject: [PATCH] Fix the use of sigaltstack to return to the saved main stack.
Previously, musl would reject the call, because the main stack has
ss_size == 0 and ss_flags == SS_DISABLE.
We could condition on ss_flags not containing SS_DISABLE, but instead,
simply remove the ss_size check, as the kernel performs the same check,
anyhow.
[[Note: I've also included the corresponding patch to libc-tests. I'm not
sure if this is OK, or if I should send it separately?]]
Content of type "text/html" skipped
View attachment "0001-Fix-the-use-of-sigaltstack-to-return-to-the-saved-ma.patch" of type "text/x-patch" (1162 bytes)
View attachment "0001-Verify-that-returning-to-the-original-stack-doesn-t-.patch" of type "text/x-patch" (1165 bytes)
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