CVE-2024-27393 remediation guide

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: xen-netfront: Add missing skb_mark_for_recycle Notice that skb_mark_for_recycle() is introduced later than fixes tag in commit 6a5bcd84e886 ("page_pool: Allow drivers to hint on SKB recycling"). It is believed that fixes tag were missing a call to page_pool_release_page() between v5.9 to v5.14, after which is should have used skb_mark_for_recycle(). Since v6.6 the call page_pool_release_page() were removed (in commit 535b9c61bdef ("net: page_pool: hide page_pool_release_page()") and remaining callers converted (in commit 6b...

Open CVE record

ProductLinux Linux, linux kernel

Affected versions>= 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c < 4143b9479caa29bb2380f3620dcbe16ea84eb3b1, >= 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c < 7c1250796b6c262b505a46192f4716b8c6a6a8c6, >= 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c < 27aa3e4b3088426b7e34584274ad45b5afaf7629, >= 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c < c8b7b2f158d9d4fb89cd2f68244af154f7549bb4, >= 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c < 037965402a010898d34f4e35327d22c0a95cd51f, >= 5.9, >= 5.9 < 5.15.154, >= 5.16 < 6.1.85, >= 6.2 < 6.6.26, >= 6.7 < 6.8.5, 6.9

Fixed versions5.15.154, 6.1.85, 6.6.26, 6.8.5

Priority basisReview · CVSS 7.5 · EPSS 0.77%

Identify the affected asset

Confirm whether Linux Linux, linux kernel 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: >= 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c < 4143b9479caa29bb2380f3620dcbe16ea84eb3b1, >= 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c < 7c1250796b6c262b505a46192f4716b8c6a6a8c6, >= 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c < 27aa3e4b3088426b7e34584274ad45b5afaf7629, >= 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c < c8b7b2f158d9d4fb89cd2f68244af154f7549bb4, >= 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c < 037965402a010898d34f4e35327d22c0a95cd51f, >= 5.9, >= 5.9 < 5.15.154, >= 5.16 < 6.1.85, >= 6.2 < 6.6.26, >= 6.7 < 6.8.5, 6.9. 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: 5.15.154, 6.1.85, 6.6.26, 6.8.5. 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.