PT-2024-11109 · Linux+1 · Linux Kernel+1
Shradha Todi
·
Published
2021-03-26
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Updated
2024-12-09
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CVE-2021-47005
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a NULL pointer dereference in the
pci epf test alloc space function when the get features ops of pci epc ops return NULL. This occurs when EPC features are not implemented in the platform driver. To avoid the NULL pointer dereference, a check for the pci epc feature pointer in pci epf test bind has been added, and the function will return -ENOTSUPP if the feature is not found. The vulnerability causes a kernel NULL pointer dereference, resulting in a dump with a call trace that includes functions such as pci epf test bind, pci epf bind, and pci epc epf link.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel
Suse