linux-kernel - [PATCH v2 1/2] io_uring: Delete a redundant kfree() call in io_ring_ctx

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: <edeafe29-2ab1-4e87-853c-912b4da06ad5@web.de>
Date: Wed, 10 Jan 2024 21:48:37 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: io-uring@...r.kernel.org, kernel-janitors@...r.kernel.org,
 Gabriel Krisman Bertazi <krisman@...e.de>, Jens Axboe <axboe@...nel.dk>,
 Pavel Begunkov <asml.silence@...il.com>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 1/2] io_uring: Delete a redundant kfree() call in
 io_ring_ctx_alloc()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 10 Jan 2024 20:54:43 +0100

Another useful pointer was not reassigned to the data structure member
“io_bl” by this function implementation.
Thus omit a redundant call of the function “kfree” at the end.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---

v2:
A change request by Gabriel Krisman Bertazi was applied here.


 io_uring/io_uring.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 86761ec623f9..c9a63c39cdd0 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -344,7 +344,6 @@ static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p)
 err:
 	kfree(ctx->cancel_table.hbs);
 	kfree(ctx->cancel_table_locked.hbs);
-	kfree(ctx->io_bl);
 	xa_destroy(&ctx->io_bl_xa);
 	kfree(ctx);
 	return NULL;
--
2.43.0