systemd/0689-efi-string-Fix-strchr-null-byte-handling.patch
Jan Macku bed495948c systemd-252-28
Resolves: RHEL-1086,RHEL-16952
2024-02-20 16:13:49 +01:00

52 lines
1.8 KiB
Diff

From 50a254def1c98a34ee5fdb52dcfbb1ed59b1250a Mon Sep 17 00:00:00 2001
From: Daan De Meyer <daan.j.demeyer@gmail.com>
Date: Mon, 30 Jan 2023 16:22:10 +0100
Subject: [PATCH] efi-string: Fix strchr() null byte handling
strchr() should be able to search for the terminating null byte,
our implementation doesn't, let's fix that.
(cherry picked from commit bbef5a9617e91b4b1bc30266eb9dcbda395a8c61)
Related: RHEL-16952
---
src/boot/efi/efi-string.c | 2 +-
src/boot/efi/test-efi-string.c | 4 ++++
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/boot/efi/efi-string.c b/src/boot/efi/efi-string.c
index 860dfc00b2..cf0d71e986 100644
--- a/src/boot/efi/efi-string.c
+++ b/src/boot/efi/efi-string.c
@@ -116,7 +116,7 @@ DEFINE_STRCPY(char16_t, strcpy16);
s++; \
} \
\
- return NULL; \
+ return c ? NULL : (type *) s; \
}
DEFINE_STRCHR(char, strchr8);
diff --git a/src/boot/efi/test-efi-string.c b/src/boot/efi/test-efi-string.c
index c26973d8bd..c7e42c7b94 100644
--- a/src/boot/efi/test-efi-string.c
+++ b/src/boot/efi/test-efi-string.c
@@ -229,6 +229,8 @@ TEST(strchr8) {
assert_se(strchr8(str, 'a') == &str[0]);
assert_se(strchr8(str, 'c') == &str[2]);
assert_se(strchr8(str, 'B') == &str[4]);
+
+ assert_se(strchr8(str, 0) == str + strlen8(str));
}
TEST(strchr16) {
@@ -240,6 +242,8 @@ TEST(strchr16) {
assert_se(strchr16(str, 'a') == &str[0]);
assert_se(strchr16(str, 'c') == &str[2]);
assert_se(strchr16(str, 'B') == &str[4]);
+
+ assert_se(strchr16(str, 0) == str + strlen16(str));
}
TEST(xstrndup8) {