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Bug #7887
closedW: shlib-with-executable-stack
Status:
Resolved
Priority:
Low
Assignee:
-
Category:
-
Target version:
-
% Done:
0%
Source:
other
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
Lintian produced the following warnings after building Debian packages of ceph-0.78:
W: librados2: shlib-with-executable-stack usr/lib/x86_64-linux-gnu/librados.so.2.0.0 W: libcephfs1: shlib-with-executable-stack usr/lib/x86_64-linux-gnu/libcephfs.so.1.0.0
Here is more detailed explanation of warning:
The listed shared libraries declares the stack as executable. Executable stack is usually an error as it is only needed if the code contains GCC trampolines or similar constructs which uses code on the stack. One possible source for false positives are object files built from assembler files which don't define a proper .note.GNU-stack section. To see the permissions on the stack, run readelf -l on the shared library and look for the program header of type GNU_STACK. In the flag column, there should not be an E flag set. Severity: normal, Certainty: possible
I don't understand potential implications of this warning but they are quite rare so it would be nice if someone would look into this. More information can be found on the following page:
http://lintian.debian.org/tags/shlib-with-executable-stack.html
Please advise if those warnings should be ignored.
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