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Wed, 19 Jun 2024 13:28:19 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id 98Q2MvPccmZ4egAAD6G6ig (envelope-from ); Wed, 19 Jun 2024 13:28:19 +0000 From: Oliver Neukum To: petkan@nucleusys.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, linux-usb@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Oliver Neukum , syzbot+5186630949e3c55f0799@syzkaller.appspotmail.com Subject: [PATCH net] net: usb: rtl8150 fix unintiatilzed variables in rtl8150_get_link_ksettings Date: Wed, 19 Jun 2024 15:28:03 +0200 Message-ID: <20240619132816.11526-1-oneukum@suse.com> X-Mailer: git-send-email 2.45.1 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spamd-Result: default: False [-0.49 / 50.00]; SUSPICIOUS_RECIPS(1.50)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; DWL_DNSWL_LOW(-1.00)[suse.com:dkim]; MID_CONTAINS_FROM(1.00)[]; 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As the function that retrieves them can fail before touching the pointers, the variables must be initialized. Reported-by: syzbot+5186630949e3c55f0799@syzkaller.appspotmail.com Signed-off-by: Oliver Neukum --- drivers/net/usb/rtl8150.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c index 97afd7335d86..01a3b2417a54 100644 --- a/drivers/net/usb/rtl8150.c +++ b/drivers/net/usb/rtl8150.c @@ -778,7 +778,8 @@ static int rtl8150_get_link_ksettings(struct net_device *netdev, struct ethtool_link_ksettings *ecmd) { rtl8150_t *dev = netdev_priv(netdev); - short lpa, bmcr; + short lpa = 0; + short bmcr = 0; u32 supported; supported = (SUPPORTED_10baseT_Half |