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Mon, 17 Jul 2023 06:21:54 +0000 From: Takashi Iwai To: alsa-devel@alsa-project.org Subject: [PATCH] ALSA: seq: Fix memory leak at error path in snd_seq_create_port() Date: Mon, 17 Jul 2023 08:21:51 +0200 Message-Id: <20230717062151.12597-1-tiwai@suse.de> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 Message-ID-Hash: FO4AXBG2AJVWY7AQD3ZXHUUTVGDRAEAQ X-Message-ID-Hash: FO4AXBG2AJVWY7AQD3ZXHUUTVGDRAEAQ X-MailFrom: tiwai@suse.de X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: We forgot to release a newly allocated item at the error path in snd_seq_create_port(). This patch fixes it. Reported-by: syzbot+cf8e7fa4eeec59b3d485@syzkaller.appspotmail.com Closes: https://lore.kernel.org/r/00000000000098ed3a0600965f89@google.com Cc: Signed-off-by: Takashi Iwai --- sound/core/seq/seq_ports.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/core/seq/seq_ports.c b/sound/core/seq/seq_ports.c index 9b80f8275026..f3f14ff0f80f 100644 --- a/sound/core/seq/seq_ports.c +++ b/sound/core/seq/seq_ports.c @@ -149,6 +149,7 @@ int snd_seq_create_port(struct snd_seq_client *client, int port, write_lock_irq(&client->ports_lock); list_for_each_entry(p, &client->ports_list_head, list) { if (p->addr.port == port) { + kfree(new_port); num = -EBUSY; goto unlock; }