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| author | Aleksandr Mishin <amishin@t-argos.ru> | 2024-05-05 09:15:17 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2024-05-28 11:15:15 -0500 |
| commit | a231707a91f323af1e5d9f1722055ec2fc1c7775 (patch) | |
| tree | 008266f2eef874ca9eeaf1fc68348cb244cd71e1 /drivers/pci/controller/dwc/pci-layerscape.c | |
| parent | 9ffa0e70b2daf9b0271e4960b7c8a2350e2cda08 (diff) | |
PCI: keystone: Fix NULL pointer dereference in case of DT error in ks_pcie_setup_rc_app_regs()
If IORESOURCE_MEM is not provided in Device Tree due to
any error, resource_list_first_type() will return NULL and
pci_parse_request_of_pci_ranges() will just emit a warning.
This will cause a NULL pointer dereference. Fix this bug by adding NULL
return check.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 0f71c60ffd26 ("PCI: dwc: Remove storing of PCI resources")
Link: https://lore.kernel.org/linux-pci/20240505061517.11527-1-amishin@t-argos.ru
Suggested-by: Bjorn Helgaas <helgaas@kernel.org>
Suggested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Diffstat (limited to 'drivers/pci/controller/dwc/pci-layerscape.c')
0 files changed, 0 insertions, 0 deletions