Vulnerability CVE-2024-43823
Published: 2024-08-17

Description:
In the Linux kernel, the following vulnerability has been resolved:

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.

 References:
https://git.kernel.org/stable/c/bbba48ad67c53feea05936ea1e029dcca8057506
https://git.kernel.org/stable/c/0a6f1b5fe8ef8268aaa069035639968ceeea0a23
https://git.kernel.org/stable/c/dbcdd1863ba2ec9b76ec131df25d797709e05597
https://git.kernel.org/stable/c/a231707a91f323af1e5d9f1722055ec2fc1c7775
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