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.
Metrics
Affected Vendors & Products
| Vendors | Products |
|---|---|
| Linux |
|
No data.
No data.
References
History
Sun, 18 Oct 2026 22:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-125 |
Sun, 18 Oct 2026 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | net: page_pool: fix use-after-free in page_pool_recycle_ring_bulk() | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2026-10-18T15:48:51.062Z
Updated: 2026-10-19T09:25:57.688Z
Reserved: 2026-09-25T10:25:14.371Z
Link: CVE-2026-98804
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-10-18T16:17:34.470
Modified: 2026-10-19T10:19:44.457
Link: CVE-2026-98804
Redhat
No data.