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authorFlorian Weimer <fweimer@redhat.com>2021-12-05 11:28:34 +0100
committerFlorian Weimer <fweimer@redhat.com>2021-12-05 11:28:34 +0100
commitc1cb2deeca1a85c6fc5bd41b90816d48a95bc434 (patch)
treeb8adcf18e06480c47d65f991739788f0f99ccd4d /NEWS
parentbada2e312a8b94c5fc2f5571b249c71cb466a640 (diff)
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elf: execve statically linked programs instead of crashing [BZ #28648]
Programs without dynamic dependencies and without a program
interpreter are now run via execve.

Previously, the dynamic linker either crashed while attempting to
read a non-existing dynamic segment (looking for DT_AUDIT/DT_DEPAUDIT
data), or the self-relocated in the static PIE executable crashed
because the outer dynamic linker had already applied RELRO protection.

<dl-execve.h> is needed because execve is not available in the
dynamic loader on Hurd.

Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Diffstat (limited to 'NEWS')
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diff --git a/NEWS b/NEWS
index f10971b180..1398cf2e87 100644
--- a/NEWS
+++ b/NEWS
@@ -184,6 +184,10 @@ Major new features:
   than or equal to a given integer.  This function is a GNU extension,
   although Solaris also provides a similar function.
 
+* When invoked explicitly, the dynamic linker now uses the kernel to
+  execute programs that do not have any dynamic dependency (that is,
+  they are statically linked).  This feature is Linux-specific.
+
 Deprecated and removed features, and other changes affecting compatibility:
 
 * The function pthread_mutex_consistent_np has been deprecated; programs