JianyuWang0623 opened a new pull request, #16927: URL: https://github.com/apache/nuttx/pull/16927
## Summary Old signal action need save `sa_user`. For example, set sigaction after create signalfd, the `sa_sigaction` was restored but `sa_user` not, causing `signalfd_action()` get the wild private data. ``` # create signalfd, xxxx_main -> signalfd -> nxsig_action # set sigaction nsh_telnetstart -> nsh_parse -> nsh_parse_command -> nsh_execute -> nsh_builtin -> sigaction -> nxsig_action ``` ## Impact - sched/signal ## Testing 1. Selftest with signalfd OK. 2. 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: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org