jerpelea opened a new pull request, #21166: URL: https://github.com/apache/nuttx/pull/21166
## Summary Numbers below CONFIG_SYS_RESERVED are the kernel's own: restore and switch context, signal return. arm64 and risc-v send any user call below that limit to the same handler the kernel uses, with nothing checking where it came from. A process can switch to a context it made up, or return from a signal it never received. A call from EL0 or U-mode below the limit gets -ENOSYS. The one exception is signal return while a signal handler is actually running (xcp.sigreturn set). ## Impact RELEASE ## Testing CI -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
