linux-kernel - [PATCH 23/26] acct: avoid pointless reference count bump

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241124-work-cred-v1-23-f352241c3970@kernel.org>
Date: Sun, 24 Nov 2024 14:44:09 +0100
From: Christian Brauner <brauner@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Christian Brauner <brauner@...nel.org>,
	Amir Goldstein <amir73il@...il.com>,
	Miklos Szeredi <miklos@...redi.hu>,
	linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: [PATCH 23/26] acct: avoid pointless reference count bump

No need for the extra reference count bump.

Signed-off-by: Christian Brauner <brauner@...nel.org>
---
 kernel/acct.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/acct.c b/kernel/acct.c
index ea8c94887b5853b10e7a7e632f7b0bc4d52ab10b..179848ad33e978a557ce695a0d6020aa169177c6 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -501,7 +501,7 @@ static void do_acct_process(struct bsd_acct_struct *acct)
 	flim = rlimit(RLIMIT_FSIZE);
 	current->signal->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
 	/* Perform file operations on behalf of whoever enabled accounting */
-	orig_cred = override_creds(get_new_cred(file->f_cred));
+	orig_cred = override_creds(file->f_cred);
 
 	/*
 	 * First check to see if there is enough free_space to continue
@@ -541,7 +541,7 @@ static void do_acct_process(struct bsd_acct_struct *acct)
 	}
 out:
 	current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim;
-	put_cred(revert_creds(orig_cred));
+	revert_creds(orig_cred);
 }
 
 /**

-- 
2.45.2