net: lan966x: fix page pool leak in error paths

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Summary

CVECVE-2026-31645
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-24 15:16:43 UTC
Updated2026-04-27 20:19:07 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net: lan966x: fix page pool leak in error paths lan966x_fdma_rx_alloc() creates a page pool but does not destroy it if the subsequent fdma_alloc_coherent() call fails, leaking the pool. Similarly, lan966x_fdma_init() frees the coherent DMA memory when lan966x_fdma_tx_alloc() fails but does not destroy the page pool that was successfully created by lan966x_fdma_rx_alloc(), leaking it. Add the missing page_pool_destroy() calls in both error paths.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000180000 probability, percentile 0.046080000 (date 2026-04-27)

Problem Types: CWE-401

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 11871aba19748b3387e83a2db6360aa7119e9a1a 73e940c4249dc5ec6422d1fae535d192fb125955 git Not specified
CNA Linux Linux affected 11871aba19748b3387e83a2db6360aa7119e9a1a 22e1ee9f22b5c3bb702bb6d4167d770002a85b2b git Not specified
CNA Linux Linux affected 11871aba19748b3387e83a2db6360aa7119e9a1a 4941e234cfd67ac911fb259642b453f9f76aac41 git Not specified
CNA Linux Linux affected 11871aba19748b3387e83a2db6360aa7119e9a1a 076344a6ad9d1308faaed1402fdcfdda68b604ab git Not specified
CNA Linux Linux affected 6.2 Not specified
CNA Linux Linux unaffected 6.2 semver Not specified
CNA Linux Linux unaffected 6.12.82 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.23 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.13 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/4941e234cfd67ac911fb259642b453f9f76aac41 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/73e940c4249dc5ec6422d1fae535d192fb125955 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/22e1ee9f22b5c3bb702bb6d4167d770002a85b2b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/076344a6ad9d1308faaed1402fdcfdda68b604ab 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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