<![CDATA[https://www.evanjones.ca/setenv-is-not-thread-safe.html today I learned.]]>RE: https://infosec.exchange/@pancake/116572937101696701

https://www.evanjones.ca/setenv-is-not-thread-safe.html today I learned. Wow.

]]>https://board.circlewithadot.net/topic/b1327dd2-13b6-41c4-9dd9-e4971a10d914/https-www.evanjones.ca-setenv-is-not-thread-safe.html-today-i-learned.RSS for NodeFri, 15 May 2026 06:55:11 GMTThu, 14 May 2026 12:36:14 GMT60<![CDATA[Reply to https://www.evanjones.ca/setenv-is-not-thread-safe.html today I learned. on Thu, 14 May 2026 13:06:06 GMT]]>@xabean yeah i assume setenv is not thread safe, but i assume that if i fork a process i can setenv before calling execvp.. turns out it's not the case. POSIX is full of traps, in macos fork(2) manpage explains that in the last section. it's like a limbo for anything that's not listed in man 7 signal-safety.

]]>https://board.circlewithadot.net/post/https://infosec.exchange/users/pancake/statuses/116573075296756160https://board.circlewithadot.net/post/https://infosec.exchange/users/pancake/statuses/116573075296756160Thu, 14 May 2026 13:06:06 GMT