CVE-2021-47005 is a NULL pointer dereference vulnerability in the Linux kernel's PCI endpoint subsystem, specifically affecting the pci_epf_test_alloc_space function. This flaw occurs when the get_features operation of pci_epc_ops returns NULL, leading to a kernel crash. With a CVSS score of 5.5 (Medium), it requires local access (AV:L) and low privileges (PR:L) to trigger, resulting in a denial of service (A:H). There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.1, < 5.10.38CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.11, < 5.11.22CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.12, < 5.12.5CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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