CVE-2024-36020
MEDIUMLinux Kernel 4.19.264-4.19.311 - Use of Uninitialized Resource in i40e VF Pointer Handling
Title source: llmDescription
In the Linux kernel, the following vulnerability has been resolved: i40e: fix vf may be used uninitialized in this function warning To fix the regression introduced by commit 52424f974bc5, which causes servers hang in very hard to reproduce conditions with resets races. Using two sources for the information is the root cause. In this function before the fix bumping v didn't mean bumping vf pointer. But the code used this variables interchangeably, so stale vf could point to different/not intended vf. Remove redundant "v" variable and iterate via single VF pointer across whole function instead to guarantee VF pointer validity.
References (11)
Core 11
Core References
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
Scores
CVSS v3
5.5
EPSS
0.0025
EPSS Percentile
15.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-908
Status
published
Products (28)
debian/debian_linux
10.0
Linux/Linux
< 6.1
Linux/Linux
02f949747e6fb767b29f7931d4bbf40911684e7a
Linux/Linux
4.19.264 - 4.19.312
Linux/Linux
4.19.312 - 4.19.*
Linux/Linux
5.10.153 - 5.10.215
Linux/Linux
5.10.215 - 5.10.*
Linux/Linux
5.15.154 - 5.15.*
Linux/Linux
5.15.77 - 5.15.154
Linux/Linux
5.4.223 - 5.4.274
... and 18 more
Published
May 30, 2024
Tracked Since
Feb 18, 2026