CVE-2026-53071 remediation guide

Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding l2cap_chan_lock(). Every other l2cap_chan_del() caller in the file acquires the lock first. A remote BLE device can send a crafted L2CAP ECRED reconfiguration response to corrupt the channel list while another thread is iterating it. Add l2cap_chan_hold() and l2cap_chan_lock() before l2cap_chan_del(), and l2cap_chan_unlock() and l2cap_chan_put() after, matching the pattern used in l2cap_ecred_con...

Open CVE record

ProductLinux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8

Affected versions>= 15f02b91056253e8cdc592888f431da0731337b8 < 96dca51715d86559ed6ed8028e5445cecb80f3ae, >= 15f02b91056253e8cdc592888f431da0731337b8 < 330b20ec97916961ee0e6c29c06bc0fa7c96e64c, >= 15f02b91056253e8cdc592888f431da0731337b8 < 0ccd75c51f620374086f359e906917676e699a1c, >= 15f02b91056253e8cdc592888f431da0731337b8 < 77a853aec710b2fdf41fa298ea3cbc9a4358f917, >= 15f02b91056253e8cdc592888f431da0731337b8 < fe1188abdae9b7a8199dcdfcf9244d5e5d61eb14, >= 15f02b91056253e8cdc592888f431da0731337b8 < dc89961b76f12aff47124c1df4bdb32a080f4d0c, >= 15f02b91056253e8cdc592888f431da0731337b8 < 5501d055a1ce3c747141e3955ba8cf034d193f3e, >= 15f02b91056253e8cdc592888f431da0731337b8 < 42776497cdbc9a665b384a6dcb85f0d4bd927eab, >= 5.7, >= 5.7 < 5.10.258, >= 5.11 < 5.15.209, >= 5.16 < 6.1.175, >= 6.2 < 6.6.141, >= 6.7 < 6.12.91, >= 6.13 < 6.18.33, >= 6.19 < 7.0.10

Fixed versions5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10

Priority basisReview · CVSS 8.8 · EPSS 0.26%

Identify the affected asset

Confirm whether Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8 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: >= 15f02b91056253e8cdc592888f431da0731337b8 < 96dca51715d86559ed6ed8028e5445cecb80f3ae, >= 15f02b91056253e8cdc592888f431da0731337b8 < 330b20ec97916961ee0e6c29c06bc0fa7c96e64c, >= 15f02b91056253e8cdc592888f431da0731337b8 < 0ccd75c51f620374086f359e906917676e699a1c, >= 15f02b91056253e8cdc592888f431da0731337b8 < 77a853aec710b2fdf41fa298ea3cbc9a4358f917, >= 15f02b91056253e8cdc592888f431da0731337b8 < fe1188abdae9b7a8199dcdfcf9244d5e5d61eb14, >= 15f02b91056253e8cdc592888f431da0731337b8 < dc89961b76f12aff47124c1df4bdb32a080f4d0c, >= 15f02b91056253e8cdc592888f431da0731337b8 < 5501d055a1ce3c747141e3955ba8cf034d193f3e, >= 15f02b91056253e8cdc592888f431da0731337b8 < 42776497cdbc9a665b384a6dcb85f0d4bd927eab, >= 5.7, >= 5.7 < 5.10.258, >= 5.11 < 5.15.209, >= 5.16 < 6.1.175, >= 6.2 < 6.6.141, >= 6.7 < 6.12.91, >= 6.13 < 6.18.33, >= 6.19 < 7.0.10. 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: 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10. 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.