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CVE Record

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

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.

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Unknown
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Official CVE source material

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Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxfcc680a647ba77370480fe753664cc10d572b240, fcc680a647ba77370480fe753664cc10d572b240, fcc680a647ba77370480fe753664cc10d572b240unaffected
LinuxLinux6.14, 0, 6.18.56, 7.2.10, 7.3-rc6affected
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