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FS#1430 - glibc and gcc -fstack-check

Attached to Project: CRUX
Opened by Kotik (Kote) - Monday, 19 June 2017, 21:05 GMT
Last edited by Fredrik Rinnestam (frinnst) - Monday, 19 June 2017, 22:01 GMT
Task Type Bug Report
Category ports
Status Closed
Assigned To CRUX Developers (crux)
Operating System CRUX
Severity Low
Priority Normal
Reported Version 3.3
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

https://blog.qualys.com/securitylabs/2017/06/19/the-stack-clash
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt - info about exploits, su, sudo, glibc libs.

https://sourceware.org/ml/libc-alpha/2017-03/msg00388.html - about glibc and '-fstack-check'

patch attached and available in url

I rebuild glibc with this flag, but localedef segfault. Without -fstack-check in CFLAGS works fine. With patch seems to be OK.
   glibc-posix_spawn-fix.patch (1 KiB)
This task depends upon

Closed by  Fredrik Rinnestam (frinnst)
Monday, 19 June 2017, 22:01 GMT
Reason for closing:  Implemented
Additional comments about closing:  in testing along with a bunch of other patches
Comment by Fredrik Rinnestam (frinnst) - Monday, 19 June 2017, 21:54 GMT
Is this patch upstreamed?
--

Nevermind, its in one of the links you posted.
Comment by Kotik (Kote) - Monday, 19 June 2017, 21:57 GMT

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