netdev - [PATCH 05/12] coredump: move revert_cred() before coredump

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Message-Id: <20251103-work-creds-guards-prepare_creds-v1-5-b447b82f2c9b@kernel.org>
Date: Mon, 03 Nov 2025 15:57:31 +0100
From: Christian Brauner <brauner@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-aio@...ck.org, linux-unionfs@...r.kernel.org, 
 linux-erofs@...ts.ozlabs.org, linux-nfs@...r.kernel.org, 
 linux-cifs@...r.kernel.org, samba-technical@...ts.samba.org, 
 cgroups@...r.kernel.org, netdev@...r.kernel.org, 
 linux-crypto@...r.kernel.org, linux-trace-kernel@...r.kernel.org, 
 Christian Brauner <brauner@...nel.org>
Subject: [PATCH 05/12] coredump: move revert_cred() before
 coredump_cleanup()

There's no need to pin the credentials across the coredump_cleanup()
call. Nothing in there depends on elevated credentials.

Signed-off-by: Christian Brauner <brauner@...nel.org>
---
 fs/coredump.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/coredump.c b/fs/coredump.c
index 5c1c381ee380..4fce2a2f279c 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -1197,8 +1197,8 @@ void vfs_coredump(const kernel_siginfo_t *siginfo)
 	}
 
 close_fail:
-	coredump_cleanup(&cn, &cprm);
 	revert_creds(old_cred);
+	coredump_cleanup(&cn, &cprm);
 	return;
 }
 

-- 
2.47.3