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High severity7.8NVD Advisory· Published May 21, 2024· Updated Jun 17, 2026

CVE-2021-47306

CVE-2021-47306

Description

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

net: fddi: fix UAF in fza_probe

fp is netdev private data and it cannot be used after free_netdev() call. Using fp after free_netdev() can cause UAF bug. Fix it by moving free_netdev() after error message.

TURBOchannel adapter")

Affected products

4
  • Linux/Kernel4 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=4.20,<5.4.135
    • cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*
    • (no CPE)
    • (no CPE)range: 4.20

Patches

Vulnerability mechanics

References

4

News mentions

0

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