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lsm: Add a __counted_by() annotation to lsm_ctx.ctx

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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>
This commit is contained in:
Mark Brown 2023-12-22 14:54:37 +00:00 committed by Paul Moore
parent ec4e9d630a
commit ea67677dbb
1 changed files with 2 additions and 1 deletions
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3
include/uapi/linux/lsm.h
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@ -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);
};
/*