What’s Vulnerable › Vulnerabilities

CVE-2023-53488: IB/hfi1: Fix possible panic during hotplug remove

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-01 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix possible panic during hotplug remove During hotplug remove it is possible that the update counters work might be pending, and may run after memory has been freed. Cancel the update counters work before freeing memory.

Affected products

• Linux kernel: from 4.3 before 4.14.323; from 4.15 before 4.19.292; from 4.20 before 5.4.254; from 5.5 before 5.10.191; from 5.11 before 5.15.127; from 5.16 before 6.1.46 — fixed in 4.14.323, 4.19.292, 5.10.191, 5.15.127, 5.4.254, 6.1.46

How to fix

Upgrade to a fixed version: Linux kernel 4.14.323, 4.19.292, 5.10.191, 5.15.127. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/33c677d1e087e437c7dcaad8d73402cf6add282e
• https://git.kernel.org/stable/c/4fdfaef71fced490835145631a795497646f4555
• https://git.kernel.org/stable/c/5e72f33ddfdb69cb21c1b59d31bbd3498d31b14a
• https://git.kernel.org/stable/c/918c1e6843b7e81d0e5cf7994f41f28dc34c98b0
• https://git.kernel.org/stable/c/ac6640f4193d0f5b44269a7f08372909f9a18e5c
• https://git.kernel.org/stable/c/bfd727ad8411995218f336ead9f2becfde7f3a89
• https://git.kernel.org/stable/c/c2145b18740c7e697748e4005ce93a5c683c86a8
• https://git.kernel.org/stable/c/d32a5e9b825d40c08a43dfbcba007159fed41a5d

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