From: Claus Hansen Ries <chr@terma.com> stable inclusion from stable-v5.10.215 commit 6d9395ba7f85bdb7af0b93272e537484ecbeff48 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q99Y CVE: CVE-2024-35796 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... -------------------------------- commit 3a38a829c8bc27d78552c28e582eb1d885d07d11 upstream. The function platform_get_resource was replaced with devm_platform_ioremap_resource_byname and is called using 0 as name. This eventually ends up in platform_get_resource_byname in the call stack, where it causes a null pointer in strcmp. if (type == resource_type(r) && !strcmp(r->name, name)) It should have been replaced with devm_platform_ioremap_resource. Fixes: bd69058f50d5 ("net: ll_temac: Use devm_platform_ioremap_resource_byname()") Signed-off-by: Claus Hansen Ries <chr@terma.com> Cc: stable@vger.kernel.org Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/cca18f9c630a41c18487729770b492bb@terma.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Yongqiang Liu <liuyongqiang13@huawei.com> --- drivers/net/ethernet/xilinx/ll_temac_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c index a2cfb354fa51..7a199ef46269 100644 --- a/drivers/net/ethernet/xilinx/ll_temac_main.c +++ b/drivers/net/ethernet/xilinx/ll_temac_main.c @@ -1439,7 +1439,7 @@ static int temac_probe(struct platform_device *pdev) } /* map device registers */ - lp->regs = devm_platform_ioremap_resource_byname(pdev, 0); + lp->regs = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(lp->regs)) { dev_err(&pdev->dev, "could not map TEMAC registers\n"); return -ENOMEM; -- 2.34.1