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CVE-2026-98571net: stmmac: clear stale buf->page after recycling on skb build failure

Description

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: clear stale buf->page after recycling on skb build failure In stmmac_rx(), when napi_build_skb() fails the descriptor page is recycled back to the page pool with page_pool_recycle_direct(), but buf->page is left pointing at the recycled page, unlike every other consumption site in the function which clears the pointer after handing the page away. With the stale pointer stmmac_rx_refill() skips the replacement allocation and programs the already-recycled page back into the RX descriptor. Clear buf->page on the napi_build_skb() failure path to keep the buffer lifecycle consistent with the other consumption sites.

Timeline

  1. ID reserved

    By Linux

  2. · 23 days later

    Published

  3. · 1 day later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.

EPSS (exploitation in 30 days)
0.20% · top 90% of all CVEs (13 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.

Affected products

  • Linux · Linux

    • affected df542f669307918f054a17878ff6dd1ddbb2fe18 – < 501baaeca7d128fa0a2f6953cf5873c5b0d7cf89
    • affected df542f669307918f054a17878ff6dd1ddbb2fe18 – < 298673397ea3f6f5811b84f0d9f71eac71dda2e3
    • affected df542f669307918f054a17878ff6dd1ddbb2fe18 – < 0a7822e34a0bfde31b194ac3da3253e5032b44cc

  • Linux · Linux

    • affected 6.14
    • unaffected < 6.14
    • unaffected 6.18.55 – ≤ 6.18.*
    • unaffected 7.2.9 – ≤ 7.2.*
    • unaffected 7.3 – ≤ *

References

References3

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .