linux-kernel - [PATCH] rust: security: use `pin_init::zeroed()` for LSM context initialization

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Message-ID: <20251129135657.36144-1-atharvd440@gmail.com>
Date: Sat, 29 Nov 2025 19:26:57 +0530
From: Atharv Dubey <atharvd440@...il.com>
To: paul@...l-moore.com,
	jmorris@...ei.org,
	serge@...lyn.com,
	ojeda@...nel.org,
	alex.gaynor@...il.com
Cc: boqun.feng@...il.com,
	gary@...yguo.net,
	bjorn3_gh@...tonmail.com,
	lossin@...nel.org,
	a.hindborg@...nel.org,
	aliceryhl@...gle.com,
	tmgross@...ch.edu,
	dakr@...nel.org,
	linux-security-module@...r.kernel.org,
	rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Atharv Dubey <atharvd440@...il.com>
Subject: [PATCH] rust: security: use `pin_init::zeroed()` for LSM context initialization

Replace the previous `unsafe { core::mem::zeroed() }` initialization of
`bindings::lsm_context` with `pin_init::zeroed()`.

Link: https://github.com/Rust-for-Linux/linux/issues/1189
Signed-off-by: Atharv Dubey <atharvd440@...il.com>
---
 rust/kernel/security.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/rust/kernel/security.rs b/rust/kernel/security.rs
index 9d271695265f..4dc3eba6ce84 100644
--- a/rust/kernel/security.rs
+++ b/rust/kernel/security.rs
@@ -62,8 +62,7 @@ impl SecurityCtx {
     /// Get the security context given its id.
     #[inline]
     pub fn from_secid(secid: u32) -> Result<Self> {
-        // SAFETY: `struct lsm_context` can be initialized to all zeros.
-        let mut ctx: bindings::lsm_context = unsafe { core::mem::zeroed() };
+        let mut ctx: bindings::lsm_context = pin_init::zeroed();
 
         // SAFETY: Just a C FFI call. The pointer is valid for writes.
         to_result(unsafe { bindings::security_secid_to_secctx(secid, &mut ctx) })?;
-- 
2.43.0