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authorMark Brown <broonie@kernel.org>2023-12-22 15:54:37 +0100
committerPaul Moore <paul@paul-moore.com>2023-12-23 00:00:37 +0100
commitea67677dbb0d30b993b15790d6cee24c900dd597 (patch)
tree77082ae753a9d25a2fd6ccbfffa8a7df4b9a6842
parentcalipso: fix memory leak in netlbl_calipso_add_pass() (diff)
downloadlinux-ea67677dbb0d30b993b15790d6cee24c900dd597.tar.xz
linux-ea67677dbb0d30b993b15790d6cee24c900dd597.zip
lsm: Add a __counted_by() annotation to lsm_ctx.ctx
The ctx in struct lsm_ctx is an array of size ctx_len, tell the compiler about this using __counted_by() where supported to improve the ability to detect overflow issues. Reported-by: Aishwarya TCV <aishwarya.tcv@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Paul Moore <paul@paul-moore.com>
-rw-r--r--include/uapi/linux/lsm.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/uapi/linux/lsm.h b/include/uapi/linux/lsm.h
index f0386880a78e..f8aef9ade549 100644
--- a/include/uapi/linux/lsm.h
+++ b/include/uapi/linux/lsm.h
@@ -9,6 +9,7 @@
#ifndef _UAPI_LINUX_LSM_H
#define _UAPI_LINUX_LSM_H
+#include <linux/stddef.h>
#include <linux/types.h>
#include <linux/unistd.h>
@@ -36,7 +37,7 @@ struct lsm_ctx {
__u64 flags;
__u64 len;
__u64 ctx_len;
- __u8 ctx[];
+ __u8 ctx[] __counted_by(ctx_len);
};
/*