diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-core/busybox/busybox/CVE-2022-30065.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-common/recipes-core/busybox/busybox/CVE-2022-30065.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-core/busybox/busybox/CVE-2022-30065.patch b/meta-openbmc-mods/meta-common/recipes-core/busybox/busybox/CVE-2022-30065.patch new file mode 100644 index 000000000..2f23931be --- /dev/null +++ b/meta-openbmc-mods/meta-common/recipes-core/busybox/busybox/CVE-2022-30065.patch @@ -0,0 +1,48 @@ +From 4bae4300986d0ed3d43f92600bd291ae3d302a99 Mon Sep 17 00:00:00 2001 +From: Yaswanth Reddy M <yaswanthx.reddy.munukuru@intel.com> +Date: Fri, 5 May 2023 08:55:31 +0000 +Subject: [PATCH] Subject: awk: fix use after free (CVE-2022-30065) + +fixes https://bugs.busybox.net/show_bug.cgi?id=14781 + +function old new delta +evaluate 3343 3357 +14 + +Signed-off-by: Yaswanth Reddy M <yaswanthx.reddy.munukuru@intel.com> +--- + editors/awk.c | 3 +++ + testsuite/awk.tests | 5 +++++ + 2 files changed, 8 insertions(+) + +diff --git a/editors/awk.c b/editors/awk.c +index 3adbca7..43a17c0 100644 +--- a/editors/awk.c ++++ b/editors/awk.c +@@ -3094,6 +3094,9 @@ static var *evaluate(node *op, var *res) + + case XC( OC_MOVE ): + debug_printf_eval("MOVE\n"); ++ /* make sure that we never return a temp var */ ++ if (L.v == TMPVAR0) ++ L.v = res; + /* if source is a temporary string, jusk relink it to dest */ + if (R.v == TMPVAR1 + && !(R.v->type & VF_NUMBER) +diff --git a/testsuite/awk.tests b/testsuite/awk.tests +index dc2ae2e..072c8fc 100755 +--- a/testsuite/awk.tests ++++ b/testsuite/awk.tests +@@ -462,5 +462,10 @@ testing "awk \"cmd\" | getline" \ + "awk 'BEGIN { \"echo HELLO\" | getline; print }'" \ + "HELLO\n" \ + '' '' ++testing 'awk assign while test' \ ++ "awk '\$1==\$1=\"foo\" {print \$1}'" \ ++ "foo\n" \ ++ "" \ ++ "foo" + + exit $FAILCOUNT +-- +2.25.1 + |