CVE-2026-98804
- Source
- https://cve.org/CVERecord?id=CVE-2026-98804
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98804.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-98804
- Downstream
- Published
- 2026-10-18T15:48:51Z
- Modified
- 2026-10-20T02:31:02Z
- Summary
- net: page_pool: fix use-after-free in page_pool_recycle_ring_bulk()
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98804.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0b105f4eb78e5ee39e5a74c47c9efd69b6ac849c
- https://git.kernel.org/stable/c/bdea4980182e3badac74f04df6c07492b91c569e
- https://git.kernel.org/stable/c/f78d45d5f1ac4141a03f033141368671da4293e4
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98804.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-98804