From: Ondřej Surý <ondrej@isc.org>
Date: Tue, 24 Feb 2026 19:26:04 +0000 (+0100)
Subject: [9.20] fix: usr: Importing invalid SKR file might corrupt stack memory
X-Git-Tag: v9.20.20~8
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9869a14ce3a048e1414dd255a63df60fc77f5a4d;p=thirdparty%2Fbind9.git

[9.20] fix: usr: Importing invalid SKR file might corrupt stack memory

If an BIND 9 administrator imports an invalid SKR file, local stack
in the import function might overflow.  This could lead to
a memory corruption on the stack and ultimately server crash.
This has been fixed.

ISC would like to thank mcsky23 for bringing this bug to our attention.

Closes #5758

Backport of MR !11578

Merge branch 'backport-5758-fix-stack-overflow-via-rndc-skr-import-9.20' into 'bind-9.20'

See merge request isc-projects/bind9!11598
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9869a14ce3a048e1414dd255a63df60fc77f5a4d