1 files changed, 40 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2022-4378-2.patch b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2022-4378-2.patch
new file mode 100644
index 000000000..b11e065c8
--- /dev/null
+++ b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2022-4378-2.patch
@@ -0,0 +1,40 @@
+From e04220518841708f68e7746232e3e54daef464a3 Mon Sep 17 00:00:00 2001
+From: Linus Torvalds <torvalds@linux-foundation.org>
+Date: Mon, 5 Dec 2022 11:33:40 -0800
+Subject: [PATCH] proc: avoid integer type confusion in get_proc_long
+
+commit e6cfaf34be9fcd1a8285a294e18986bfc41a409c upstream.
+
+proc_get_long() is passed a size_t, but then assigns it to an 'int'
+variable for the length.  Let's not do that, even if our IO paths are
+limited to MAX_RW_COUNT (exactly because of these kinds of type errors).
+
+So do the proper test in the rigth type.
+
+Reported-by: Kyle Zeng <zengyhkyle@gmail.com>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ kernel/sysctl.c | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/kernel/sysctl.c b/kernel/sysctl.c
+index 205d605cacc5bb..25b44424d652cf 100644
+--- a/kernel/sysctl.c
++++ b/kernel/sysctl.c
+@@ -340,13 +340,12 @@ static int proc_get_long(char **buf, size_t *size,
+ 			  unsigned long *val, bool *neg,
+ 			  const char *perm_tr, unsigned perm_tr_len, char *tr)
+ {
+-	int len;
+ 	char *p, tmp[TMPBUFLEN];
++	ssize_t len = *size;
+ 
+-	if (!*size)
++	if (len <= 0)
+ 		return -EINVAL;
+ 
+-	len = *size;
+ 	if (len > TMPBUFLEN - 1)
+ 		len = TMPBUFLEN - 1;
+