CVE-2021-47501

Advisory lineage Upstream: 0 Downstream: 24
Analyzed
Published: 24 May 2024, 15:01
Last modified:11 May 2026, 13:55

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

24 May 2024, 15:01
Published
Vulnerability first disclosed
11 May 2026, 13:55
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc When trying to dump VFs VSI RX/TX descriptors using debugfs there was a crash due to NULL pointer dereference in i40e_dbg_dump_desc. Added a check to i40e_dbg_dump_desc that checks if VSI type is correct for dumping RX/TX descriptors.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 3%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • linux•linux

    ≥ 02e9c290814cc143ceccecb14eac3e7a05da745e, < e5b7fb2198abc50058f1a29c395b004f76ab1c83 | ≥ 02e9c290814cc143ceccecb14eac3e7a05da745e, < 16431e442db248ecd8aa9457cf0a656f1885f56e | ≥ 02e9c290814cc143ceccecb14eac3e7a05da745e, < 23ec111bf3549aae37140330c31a16abfc172421 | 3.12

  • linux•linux_kernel

    ≥ 3.12, < 5.10.85 | ≥ 5.11, < 5.15.8 | 5.16:rc1 | 5.16:rc2 | 5.16:rc3 | 5.16:rc4

References (3)