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CVE-2026-98804net: page_pool: fix use-after-free in page_pool_recycle_ring_bulk()

Description

In the Linux kernel, the following vulnerability has been resolved: net: page_pool: fix use-after-free in page_pool_recycle_ring_bulk() With CONFIG_PAGE_POOL_STATS=y, page_pool_recycle_ring_bulk() updates the recycle stats after dropping the producer lock. If it just recycled the last inflight netmems of a pool being destroyed, page_pool_release() can pass its producer-lock barrier and free the pool before recycle_stat_add() runs. Commit fcc680a647ba7 ("page_pool: allow mixing PPs within one bulk") moved this stat update after the unlock. Commit 271683bb2cf32 ("page_pool: Fix use-after-free in page_pool_recycle_in_ring") later added the barrier, but only fixed page_pool_recycle_in_ring(). Move the update back under the lock.

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 fcc680a647ba77370480fe753664cc10d572b240 – < f78d45d5f1ac4141a03f033141368671da4293e4
    • affected fcc680a647ba77370480fe753664cc10d572b240 – < 0b105f4eb78e5ee39e5a74c47c9efd69b6ac849c
    • affected fcc680a647ba77370480fe753664cc10d572b240 – < bdea4980182e3badac74f04df6c07492b91c569e

  • Linux · Linux

    • affected 6.14
    • unaffected < 6.14
    • unaffected 6.18.56 – ≤ 6.18.*
    • unaffected 7.2.10 – ≤ 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 .