On Mon, 2 Mar 2026 02:40:50 GMT, Yasumasa Suenaga <[email protected]> wrote:
> We discussed about using `sigaltstack`: > https://mail.openjdk.org/pipermail/hotspot-runtime-dev/2011-August/002370.html > Interesting. The ideas are obvious and similar. > I remember `sigaltstack()` has security bug on older Linux Kernel, but it it > is fixed in later 2.6. Older JDK (maybe 6?) implemented to use > `sigaltstack()`, but I heard it removed due to this bug. > > This PR uses `sigaltstack()`, so I concern we need to consider for older > Linux Kernel. (it is better not to consider older environment, of course...) Do you have any more information on this security bug? If its kernel 2.6, this is not relevant. 2.6' ultimate stable release was 2011. I quitepretty sure we have other kernel version dependencies that dictate kernel versions > 2.6 , so I doubt kernel 2.6 would even run a modern OpenJDK. ------------- PR Comment: https://git.openjdk.org/jdk/pull/29559#issuecomment-3996178870
