CVE-2026-98804net: page_pool: fix use-after-free in page_pool_recycle_ring_bulk()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | from fcc680a647ba77370480fe753664cc10d572b240 before f78d45d5f1ac4141a03f033141368671da4293e4; from fcc680a647ba77370480fe753664cc10d572b240 before 0b105f4eb78e5ee39e5a74c47c9efd69b6ac849c; from fcc680a647ba77370480fe753664cc10d572b240 before bdea4980182e3badac74f04df6c07492b91c569e | CNA record |
References
- https://git.kernel.org/stable/c/f78d45d5f1ac4141a03f033141368671da4293e4
- https://git.kernel.org/stable/c/0b105f4eb78e5ee39e5a74c47c9efd69b6ac849c
- https://git.kernel.org/stable/c/bdea4980182e3badac74f04df6c07492b91c569e
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.