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Bug
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Resolution: Obsolete
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Minor
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None
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rhel-8.7.0
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None
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None
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rhel-sst-display-window-management
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None
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False
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None
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None
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None
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None
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If docs needed, set a value
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x86_64
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None
There is an undefined behavior when using the latest Tcl/Tk build (from 8.6.13 sources) on latest RHEL 7 and 8 releases:
https://core.tcl-lang.org/tk/tktview?name=e42eef33ee
The bug is in FreeDesktop libX11 library:
https://gitlab.freedesktop.org/xorg/lib/libx11/-/issues/36
It has been fixed some time ago, but it was not back-ported to RHEL 7.x and 8.x branches.
The latest RHEL 9.4 does not exhibit this issue.
Is it possible to backport the above mentioned fix in libX11 library to RHEL 7 and 8 branches?
Steps to reproduce:
- build the latest Tcl/Tk library from source-code (8.6.13 version)
- launch wish8.6 with valgrind
Also GCC address sanitizer reports this issue as heap-use-after-free
