CVE-2026-46090 remediation guide

Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support

In the Linux kernel, the following vulnerability has been resolved: ALSA: aloop: Fix peer runtime UAF during format-change stop loopback_check_format() may stop the capture side when playback starts with parameters that no longer match a running capture stream. Commit 826af7fa62e3 ("ALSA: aloop: Fix racy access at PCM trigger") moved the peer lookup under cable->lock, but the actual snd_pcm_stop() still runs after dropping that lock. A concurrent close can clear the capture entry from cable->streams[] and detach or free its runtime while the playback trigger path still holds a stale peer su...

Open CVE record

ProductLinux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support

Affected versions>= 597603d615d2b19a9e451d8cfac24372856a522d < 83bd62fa9620ac98d5d694bde14c50f98c8e7189, >= 597603d615d2b19a9e451d8cfac24372856a522d < 345c24b2bcf0923dfae1ab41497351c68214ff76, >= 597603d615d2b19a9e451d8cfac24372856a522d < 03f52a9c170431e8f10e156b9dc0dae80b3e9198, >= 597603d615d2b19a9e451d8cfac24372856a522d < bdd9503c3d222d2735b56c7a8b4422ccf3de6e5c, >= 597603d615d2b19a9e451d8cfac24372856a522d < 5d45e34bf001344e2966dabca1897561bbc9e913, >= 597603d615d2b19a9e451d8cfac24372856a522d < e5c33cdc6f402eab8abd36ecf436b22c9d3a8aff, >= 2.6.37, >= 2.6.37 < 5.10.259, >= 5.11 < 5.15.210, >= 5.16 < 6.12.88, >= 6.13 < 6.18.27, >= 6.19 < 7.0.4, 7.1

Fixed versions5.10.259, 5.15.210, 6.12.88, 6.18.27, 7.0.4

Priority basisReview · CVSS 7.8 · EPSS 0.10%

Identify the affected asset

Confirm whether Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support is installed, record the deployed version and installation path, and identify exposed interfaces.

Record the product name, package or appliance identifier, and installed version.
Identify internet-facing, administrative, API, and internal access paths.
Preserve the pre-change configuration and relevant service logs.

Validate the affected-version match

Compare the deployed version with the affected range: >= 597603d615d2b19a9e451d8cfac24372856a522d < 83bd62fa9620ac98d5d694bde14c50f98c8e7189, >= 597603d615d2b19a9e451d8cfac24372856a522d < 345c24b2bcf0923dfae1ab41497351c68214ff76, >= 597603d615d2b19a9e451d8cfac24372856a522d < 03f52a9c170431e8f10e156b9dc0dae80b3e9198, >= 597603d615d2b19a9e451d8cfac24372856a522d < bdd9503c3d222d2735b56c7a8b4422ccf3de6e5c, >= 597603d615d2b19a9e451d8cfac24372856a522d < 5d45e34bf001344e2966dabca1897561bbc9e913, >= 597603d615d2b19a9e451d8cfac24372856a522d < e5c33cdc6f402eab8abd36ecf436b22c9d3a8aff, >= 2.6.37, >= 2.6.37 < 5.10.259, >= 5.11 < 5.15.210, >= 5.16 < 6.12.88, >= 6.13 < 6.18.27, >= 6.19 < 7.0.4, 7.1. Treat incomplete inventory results as unresolved.

Prioritize with independent signals

The CVSS severity warrants an early asset and exposure review. Combine this signal with asset criticality, exposure, compensating controls, and business impact.

Apply supported remediation

Follow the vendor advisory or supported update path. Current fixed-version status: 5.10.259, 5.15.210, 6.12.88, 6.18.27, 7.0.4. Preserve configuration and rollback material before change.

Verify the result

Confirm the resulting version, service health, authentication and access paths, monitoring coverage, and relevant security logs.

Confirm the expected version and package state.
Run a functional health check for critical service paths.
Review authentication, error, application, and security monitoring logs.
Reassess exposure if the supported fix cannot be applied.

Operational boundary

This page does not replace the vendor advisory, support contract, change-management process, or recovery plan. Do not infer that an asset is unaffected from an incomplete inventory query or a missing fixed-version field.