PT-2026-37384 · Linux · Linux

Published 2026-05-06 · Updated 2026-05-06 · CVE-2026-43074

NVD

In the Linux kernel, the following vulnerability has been resolved:

eventpoll: defer struct eventpoll free to RCU grace period

In certain situations, ep free() in eventpoll.c will kfree the epi->ep eventpoll struct while it still being used by another concurrent thread. Defer the kfree() to an RCU callback to prevent UAF.

Related Identifiers

CVE-2026-43074

Affected Products

Linux

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-43074 · Security Note
• https://git.kernel.org/stable/c/7e8083f5eeedab0f460063b9c2c14c9a4e71a427 · Note
• https://git.kernel.org/stable/c/ae0bb9c1fb7c2594519aeeb096cf2c3b7837b322 · Note
• https://git.kernel.org/stable/c/a6566cd33f6f967a7651ebf2ce0dd31572e319cf · Note
• https://git.kernel.org/stable/c/5b1173b165421561db29f30afc7e97d940a398a9 · Note
• https://git.kernel.org/stable/c/07712db80857d5d09ae08f3df85a708ecfc3b61f · Note