[PATCH 14/16] act: use credential guards in acct_write_process()
From: Christian Brauner <brauner@kernel.org>
Date: 2025-11-03 11:27:49
Also in:
cgroups, linux-cifs, linux-fsdevel, linux-nfs, linux-unionfs, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
Use credential guards for scoped credential override with automatic restoration on scope exit. Signed-off-by: Christian Brauner <brauner@kernel.org> --- kernel/acct.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/kernel/acct.c b/kernel/acct.c
index 61630110e29d..c1028f992529 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c@@ -520,12 +520,10 @@ static void fill_ac(struct bsd_acct_struct *acct) static void acct_write_process(struct bsd_acct_struct *acct) { struct file *file = acct->file; - const struct cred *cred; acct_t *ac = &acct->ac; /* Perform file operations on behalf of whoever enabled accounting */ - cred = override_creds(file->f_cred); - + with_creds(file->f_cred); /* * First check to see if there is enough free_space to continue * the process accounting system. Then get freeze protection. If
@@ -538,8 +536,6 @@ static void acct_write_process(struct bsd_acct_struct *acct) __kernel_write(file, ac, sizeof(acct_t), &pos); file_end_write(file); } - - revert_creds(cred); } static void do_acct_process(struct bsd_acct_struct *acct)
--
2.47.3