diff options
| author |   Dexuan Cui <decui@microsoft.com> | 2019-08-02 22:50:20 +0000 |
|---|---|---|
| committer |   Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2019-08-12 14:14:00 +0100 |
| commit | 533ca1feed98b0bf024779a14760694c7cb4d431 (patch) | |
| tree | ddc521c5d171ede296f6e5d3653c2812e3ca591a /drivers/pci/controller/pci-hyperv.c | |
| parent | Linus 5.3-rc1 (diff) | |
| download | wireguard-linux-533ca1feed98b0bf024779a14760694c7cb4d431.tar.xz wireguard-linux-533ca1feed98b0bf024779a14760694c7cb4d431.zip | |
PCI: hv: Avoid use of hv_pci_dev->pci_slot after freeing it
The slot must be removed before the pci_dev is removed, otherwise a panic
can happen due to use-after-free.
Fixes: 15becc2b56c6 ("PCI: hv: Add hv_pci_remove_slots() when we unload the driver")
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/pci/controller/pci-hyperv.c')
| -rw-r--r-- | drivers/pci/controller/pci-hyperv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index 40b625458afa..2b53976cd9f9 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -2701,8 +2701,8 @@ static int hv_pci_remove(struct hv_device *hdev) /* Remove the bus from PCI's point of view. */ pci_lock_rescan_remove(); pci_stop_root_bus(hbus->pci_bus); - pci_remove_root_bus(hbus->pci_bus); hv_pci_remove_slots(hbus); + pci_remove_root_bus(hbus->pci_bus); pci_unlock_rescan_remove(); hbus->state = hv_pcibus_removed; } |