PatchTheCVECVE-2026-64210: In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix unlocked writing to I
CVE-2026-64210 is a high-severity flaw (CVSS 7.5) affecting linux kernel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix unlocked writing to ICOSQ During napi poll, when the affinity changes and there's still XSK work to be done, we trigger an ICOSQ interrupt on the new CPU. However, this triggering on the ICOSQ is done unprotected. There are 2 such races: A) mlx5e_trigger_irq() is called while mlx5e_xsk_alloc_rx_mpwqe() is running from a different CPU due to affinity change
Why this priority
- High severity
- Remotely exploitable, no login, no user action
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 69%) |
| CISA exploited list | No |
| Weakness | CWE-362 |
| Published | 2026-07-24 |
| Last modified | 2026-10-19 |
Last updated 2026-10-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Advisories and coverage
Official advisories
- Amazon Linux 2023 ALAS: ALAS2023-2026-3192 (important): kernel6.18 2026-10-12
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-64210?
linux kernel: upgrade to 7.0.11. Exact commands for each OS are on this page.
Is CVE-2026-64210 being exploited?
CVE-2026-64210 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-64210 affect?
CVE-2026-64210 affects linux kernel. Severity is high (CVSS 7.5). In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix unlocked writing to ICOSQ During napi poll, when the affinity changes and there's still XSK work to be done, we trigger an ICOSQ interrupt on the new
How urgent is CVE-2026-64210?
Priority 44/100. High severity; Remotely exploitable, no login, no user action; On your watchlist
Software pages
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