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Date: Mon, 12 Mar 2012 01:48:27 +0800 From: Jiang Liu <liuj97@...il.com> To: Yinghai Lu <yinghai@...nel.org>, Jesse Barnes <jbarnes@...tuousgeek.org>, Bjorn Helgaas <bhelgaas@...gle.com> Cc: Jiang Liu <jiang.liu@...wei.com>, Ashok Raj <ashok.raj@...el.com>, Suresh Siddha <suresh.b.siddha@...el.com>, Youquan Song <youquan.song@...el.com>, linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org, chenkeping@...wei.com Subject: [PATCH 3/5] Fix an access-after-free issue in function pci_stop_and_remove_bus() If pci_stop_and_remove_bus() is called to remove a pci root bus, the host_bridge structure may have already been freed after returning from pci_remove_bus(), so don't access the structure any more. Signed-off-by: Jiang Liu <jiang.liu@...wei.com> --- drivers/pci/remove.c | 3 --- 1 files changed, 0 insertions(+), 3 deletions(-) diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c index 75b0092..25f368e 100644 --- a/drivers/pci/remove.c +++ b/drivers/pci/remove.c @@ -194,9 +194,6 @@ void pci_stop_and_remove_bus(struct pci_bus *bus) pci_remove_bus(bus); - if (host_bridge) - host_bridge->bus = NULL; - if (pci_bridge) pci_bridge->subordinate = NULL; } -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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