linux-kernel - [PATCH] tomoyo: don't special case PF_IO_WORKER for PF

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Message-ID: <46f6e3cb-cc96-d214-e183-71dd238da075@kernel.dk>
Date:   Thu, 25 Mar 2021 18:44:13 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Kentaro Takeda <takedakn@...data.co.jp>,
        Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
Cc:     linux-security-module@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] tomoyo: don't special case PF_IO_WORKER for PF_KTHREAD

The io_uring PF_IO_WORKER threads no longer have PF_KTHREAD set, so no
need to special case them for credential checks.

Cc: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
Signed-off-by: Jens Axboe <axboe@...nel.dk>
---
 security/tomoyo/network.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/tomoyo/network.c b/security/tomoyo/network.c
index 478f757ff843..8dc61335f65e 100644
--- a/security/tomoyo/network.c
+++ b/security/tomoyo/network.c
@@ -613,7 +613,7 @@ static int tomoyo_check_unix_address(struct sockaddr *addr,
 static bool tomoyo_kernel_service(void)
 {
 	/* Nothing to do if I am a kernel service. */
-	return (current->flags & (PF_KTHREAD | PF_IO_WORKER)) == PF_KTHREAD;
+	return current->flags & PF_KTHREAD;
 }
 
 /**
-- 
2.31.0

-- 
Jens Axboe