What is CVE-2026-23045?

CVE-2026-23045 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 6.17 onward and patched in 6.18.6 and 6.19. CVE-2026-23045 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-23045?

CVE-2026-23045 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-23045?

Yes, CVE-2026-23045 has been patched. Fixed versions include 6.18.6 and 6.19. If you are running Linux kernel 6.17 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-23045 actively exploited?

CVE-2026-23045 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-23045

In the Linux kernel, the following vulnerability has been resolved: net/ena: fix missing lock when update devlink params Fix assert lock warning while calling devl_param_driverinit_value_set() in ena. WARNING: net/devlink/core.c:261 at devl_assert_locked+0x62/0x90, CPU#0: kworker/0:0/9 CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.19.0-rc2+ #1 PREEMPT(lazy) Hardware name: Amazon EC2 m8i-flex.4xlarge/, BIOS 1.0 10/16/2017 Workqueue: events work_for_cpu_fn RIP: 0010:devl_assert_locked+0x62/0x90 Call Trace: <TASK> devl_param_driverinit_value_set+0x15/0x1c0 ena_devlink_alloc+0x18c/0x220 [ena] ? __pfx_ena_devlink_alloc+0x10/0x10 [ena] ? trace_hardirqs_on+0x18/0x140 ? lockdep_hardirqs_on+0x8c/0x130 ? __raw_spin_unlock_irqrestore+0x5d/0x80 ? __raw_spin_unlock_irqrestore+0x46/0x80 ? devm_ioremap_wc+0x9a/0xd0 ena_probe+0x4d2/0x1b20 [ena] ? __lock_acquire+0x56a/0xbd0 ? __pfx_ena_probe+0x10/0x10 [ena] ? local_clock+0x15/0x30 ? __lock_release.isra.0+0x1c9/0x340 ? mark_held_locks+0x40/0x70 ? lockdep_hardirqs_on_prepare.part.0+0x92/0x170 ? trace_hardirqs_on+0x18/0x140 ? lockdep_hardirqs_on+0x8c/0x130 ? __raw_spin_unlock_irqrestore+0x5d/0x80 ? __raw_spin_unlock_irqrestore+0x46/0x80 ? __pfx_ena_probe+0x10/0x10 [ena] ...... </TASK>

Package Linux Kernel

Published 2026-02-04

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 6.17 and later are affected. Fixed in 6.18.6, 6.19 and their respective stable series.

Affected from

≥ 6.17

Fixed in

✓ 6.18.6 6.18.x ✓ 6.19

References

The following references provide additional information about CVE-2026-23045 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/8da901ffe497a53fa4ecc3ceed0e6d771586f88e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/f2c4bcfa193eef1b7457a56be9c47a8de015f225
Patch

Frequently asked questions

What is CVE-2026-23045?

CVE-2026-23045 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.17 onward and has been patched in 6.18.6 and 6.19. CVE-2026-23045 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-23045?

Yes — CVE-2026-23045 has been patched. Fixed versions include 6.18.6 and 6.19. If you are running Linux kernel 6.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-23045 actively exploited?

No — CVE-2026-23045 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.