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Review reviewHigh

CVE-2025-38490

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: net: libwx: remove duplicate page_pool_put_full_page() page_pool_put_full_page() should only be invoked when freeing Rx buffers or building a skb if the size is too short. At other times, the pages need to be reused. So remove the redundant page put. In the original code, double free pages cause kernel panic: [ 876.949834] __irq_exit_rcu+0xc7/0x130 [ 876.949836] common_interrupt+0xb8/0xd0 [ 876.949838] </IRQ> [ 876.949838] <TASK> [ 876.949840] asm_common_interrupt+0x22/0x40 [ 876.949841] RIP: 0010:cpuidle_enter_state+0xc2/0...

CVSS
7.8
EPSS
0.29%
21.7% percentile
CISA KEV
Not listed
Published
2025.07.28
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.29%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: net: libwx: remove duplicate page_pool_put_full_page() page_pool_put_full_page() should only be invoked when freeing Rx buffers or building a skb if the size is too short. At other times, the pages need to be reused. So remove the redundant page put. In the original code, double free pages cause kernel panic: [ 876.949834] __irq_exit_rcu+0xc7/0x130 [ 876.949836] common_interrupt+0xb8/0xd0 [ 876.949838] </IRQ> [ 876.949838] <TASK> [ 876.949840] asm_common_interrupt+0x22/0x40 [ 876.949841] RIP: 0010:cpuidle_enter_state+0xc2/0...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 3c47e8ae113a68da47987750d9896e325d0aeedd < 3c91a56762b1f0d1e4af2d86c2cba83b61ed9eaa, >= 3c47e8ae113a68da47987750d9896e325d0aeedd < 08d18bda0d03f5ec376929a8c6c4495f9594593a, >= 3c47e8ae113a68da47987750d9896e325d0aeedd < 003e4765d8661be97e650a833868c53d35574130, >= 3c47e8ae113a68da47987750d9896e325d0aeedd < 1b7e585c04cd5f0731dd25ffd396277e55fae0e6, >= 6.3, >= 6.3 < 6.6.100, >= 6.7 < 6.12.40, >= 6.13 < 6.15.8, 6.16
Fixed versions
6.6.100, 6.12.40, 6.15.8

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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-415