[openssl/openssl] 4f1786: NULL-pointer subtraction UB in tls_collect_extensi...

"'Daniel Kubec' via openssl-commits" <[email protected]> Fri, 10 Jul 2026 08:41:35 -0700

Newsgroups	gmane.comp.encryption.openssl.cvs
Message-ID	<openssl/openssl/push/refs/heads/master/[email protected]>

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: 4f17865ba44b904c99d8e10ac1e460b811b7842e
      https://github.com/openssl/openssl/commit/4f17865ba44b904c99d8e10ac1e460b811b7842e
  Author: Daniel Kubec <[email protected]>
  Date:   2026-07-10 (Fri, 10 Jul 2026)

  Changed paths:
    M ssl/statem/extensions.c
    M test/sslapitest.c

  Log Message:
  -----------
  NULL-pointer subtraction UB in tls_collect_extensions()

Fixed invalid-pointer-pair in the existing branch by ensuring thisex != NULL
before subtraction.

Fixes #31689

Reviewed-by: Tom Cosgrove <[email protected]>
Reviewed-by: Tomas Mraz <[email protected]>
MergeDate: Fri Jul 10 15:40:21 2026
(Merged from https://github.com/openssl/openssl/pull/31875)



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