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
| ||
|
Message-Id: <20220930175725.2548233-1-zyytlz.wz@163.com> Date: Sat, 1 Oct 2022 01:57:25 +0800 From: Zheng Wang <zyytlz.wz@....com> To: netdev@...r.kernel.org Cc: wellslutw@...il.com, davem@...emloft.net, linux-kernel@...r.kernel.org, hackerzheng666@...il.com, alex000young@...il.com, security@...nel.org, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, Zheng Wang <zyytlz.wz@....com> Subject: [PATCH] eth: sp7021: fix use after free bug in spl2sw_nvmem_get_mac_address This frees "mac" and tries to display its address as part of the error message on the next line. Swap the order. Fixes: fd3040b9394c ("net: ethernet: Add driver for Sunplus SP7021") Signed-off-by: Zheng Wang <zyytlz.wz@....com> --- drivers/net/ethernet/sunplus/spl2sw_driver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/sunplus/spl2sw_driver.c b/drivers/net/ethernet/sunplus/spl2sw_driver.c index 546206640492..61d1d07dc070 100644 --- a/drivers/net/ethernet/sunplus/spl2sw_driver.c +++ b/drivers/net/ethernet/sunplus/spl2sw_driver.c @@ -248,8 +248,8 @@ static int spl2sw_nvmem_get_mac_address(struct device *dev, struct device_node * /* Check if mac address is valid */ if (!is_valid_ether_addr(mac)) { - kfree(mac); dev_info(dev, "Invalid mac address in nvmem (%pM)!\n", mac); + kfree(mac); return -EINVAL; } -- 2.25.1
Powered by blists - more mailing lists