1From 15d2428d5d3df8dd826008baf51579ab7750d8b2 Mon Sep 17 00:00:00 2001 2From: Xiangyu Chen <xiangyu.chen@windriver.com> 3Date: Wed, 23 Nov 2022 11:17:01 +0800 4Subject: [OE-Core][kirkstone][PATCH] bash: heap-buffer-overflow in 5 valid_parameter_transform CVE-2022-3715 6 7Reference:https://bugzilla.redhat.com/show_bug.cgi?id=2126720 8 9CVE: CVE-2022-3715 10Upstream-Status: Backport from 11[https://git.savannah.gnu.org/cgit/bash.git/diff/subst.c?h=bash-5.2-testing&id=9cef6d01181525de119832d2b6a925899cdec08e] 12 13Signed-off-by: Xiangyu Chen <xiangyu.chen@windriver.com> 14--- 15 subst.c | 2 +- 16 1 file changed, 1 insertion(+), 1 deletion(-) 17 18diff --git a/subst.c b/subst.c 19index 2b76256..38ee9ac 100644 20--- a/subst.c 21+++ b/subst.c 22@@ -7962,7 +7962,7 @@ parameter_brace_transform (varname, value, ind, xform, rtype, quoted, pflags, fl 23 return ((char *)NULL); 24 } 25 26- if (valid_parameter_transform (xform) == 0) 27+ if (xform[0] == 0 || valid_parameter_transform (xform) == 0) 28 { 29 this_command_name = oname; 30 #if 0 /* TAG: bash-5.2 Martin Schulte <gnu@schrader-schulte.de> 10/2020 */ 31-- 322.34.1 33 34