CVE-2024-36020High· 7.8▾ TwilightIn 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 repr…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
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.
linux_kernel >= 4.19.264, < 4.19.312linux_kernel >= 5.4.223, < 5.4.274linux_kernel >= 5.10.153, < 5.10.215linux_kernel >= 5.15.77, < 5.15.154linux_kernel >= 6.0.7, < 6.1linux_kernel >= 6.1.1, < 6.1.85linux_kernel >= 6.2, < 6.6.26linux_kernel >= 6.7, < 6.8.5linux_kernel = 6.1linux_kernel = 6.9debian_linux = 10.0Upgrade past the affected range:
linux_kernel 6.8.5Connected by shared product, vendor, weakness, or advisory.
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