6.14-stable review patch. If anyone has any objections, please let me know.
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From: Abdun Nihaal abdun.nihaal@gmail.com
[ Upstream commit b2727326d0a53709380aa147018085d71a6d4843 ]
When txgbe_sw_init() is called, memory is allocated for wx->rss_key in wx_init_rss_key(). However, in txgbe_probe() function, the subsequent error paths after txgbe_sw_init() don't free the rss_key. Fix that by freeing it in error path along with wx->mac_table.
Also change the label to which execution jumps when txgbe_sw_init() fails, because otherwise, it could lead to a double free for rss_key, when the mac_table allocation fails in wx_sw_init().
Fixes: 937d46ecc5f9 ("net: wangxun: add ethtool_ops for channel number") Reported-by: Jiawen Wu jiawenwu@trustnetic.com Signed-off-by: Abdun Nihaal abdun.nihaal@gmail.com Reviewed-by: Jiawen Wu jiawenwu@trustnetic.com Reviewed-by: Simon Horman horms@kernel.org Link: https://patch.msgid.link/20250415032910.13139-1-abdun.nihaal@gmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/wangxun/txgbe/txgbe_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c index f774502680364..7e352837184fa 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c @@ -559,7 +559,7 @@ static int txgbe_probe(struct pci_dev *pdev, /* setup the private structure */ err = txgbe_sw_init(wx); if (err) - goto err_free_mac_table; + goto err_pci_release_regions;
/* check if flash load is done after hw power up */ err = wx_check_flash_load(wx, TXGBE_SPI_ILDR_STATUS_PERST); @@ -717,6 +717,7 @@ static int txgbe_probe(struct pci_dev *pdev, wx_clear_interrupt_scheme(wx); wx_control_hw(wx, false); err_free_mac_table: + kfree(wx->rss_key); kfree(wx->mac_table); err_pci_release_regions: pci_release_selected_regions(pdev,