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Review reviewHigh

CVE-2024-27393

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...

CVSS
7.5
EPSS
0.77%
52.2% percentile
CISA KEV
Not listed
Published
2024.05.15
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.77%
Technical severityCVSS 7.5

Vulnerability overview

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...

Affected product and versions

Product
Linux 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 versions
5.15.154, 6.1.85, 6.6.26, 6.8.5

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
CWE-401
CVE-2024-27393 — Linux Linux, linux kernel | SECUFOCUS NOW