8a15ac8378
If multithreaded non-Linux process execs Linux binary, then non-Linux threads different from the one that execing are cleared by single-threading at boundary, and then terminating them in post_execve(). Since at that time the process is already switched to linux ABI, linuxolator is involved in the thread clearing on boundary, but cannot find the emul data. Handle it by pre-creating emuldata for all threads in the execing process. Also remove a code in linux_proc_exec() handler that cleared emul data for other threads when execing from multithreaded Linux process. It is excessive. PR: 247020 Reported by: Martin FIlla <freebsd@sysctl.cz> Reported by: Henrique L. Amorim, Independent Security Researcher Reported by: Rodrigo Rubira Branco (BSDaemon), Amazon Web Services Reviewed by: markj Tested by: trasz Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D25293 |
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| cloudabi | ||
| cloudabi32 | ||
| cloudabi64 | ||
| freebsd32 | ||
| ia32 | ||
| lindebugfs | ||
| linprocfs | ||
| linsysfs | ||
| linux | ||
| linuxkpi/common | ||
| ndis | ||
| netbsd | ||
| x86bios | ||