CVE-2026-98804: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: fcc680a647ba77370480fe753664cc10d572b240 преди f78d45d5f1ac4141a03f033141368671da4293e4; fcc680a647ba77370480fe753664cc10d572b240 преди 0b105f4eb78e5ee39e5a74c47c9efd69b6ac849c; fcc680a647ba77370480fe753664cc10d572b240 преди bdea4980182e3badac74f04df6c07492b91c569e
• Linux Linux: 6.14; преди 6.14; 6.18.56 до 6.18.*; 7.2.10 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98804
• https://nvd.nist.gov/vuln/detail/CVE-2026-98804
• https://git.kernel.org/stable/c/f78d45d5f1ac4141a03f033141368671da4293e4
• https://git.kernel.org/stable/c/0b105f4eb78e5ee39e5a74c47c9efd69b6ac849c
• https://git.kernel.org/stable/c/bdea4980182e3badac74f04df6c07492b91c569e