CVE-2026-43074high

CVE-2026-43074: falha de alta gravidade em Linux

eventpoll: defer struct eventpoll free to RCU grace period

Publicada em · Atualizada em

41Vexday Risk Score

Sem sinal de exploração. Ela tem prova de conceito pública.

ssvc Attendcvss 7.8epss 0.2%
da publicação à arma73 dias
Publicada no NVD6 de mai.
1ª PoC+73d
probabilidade de exploração
0.2%top 94% das CVEs
exploração observada
nãonenhuma fonte reporta
1 exploit(s) público(s)
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
Linux · Linux
PoCs públicas encontradas — 1
githubgithub.com/PeronGH/badepoll-selinux-disabler★ 5
⚠ Recursos públicos, para você avaliar a exposição de sistemas que controla ou está autorizado a testar. Teste apenas com autorização.
CVEs relacionadas — Linux

No mesmo produto, das mais perigosas para as menos.

CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2024-53150HIGHALSA: usb-audio: Fix out of bounds reads when finding clock sourcesEPSS 1.4%KEV
Referências
https://git.kernel.org/stable/c/07712db80857d5d09ae08f3df85a708ecfc3b61fhttps://git.kernel.org/stable/c/5b1173b165421561db29f30afc7e97d940a398a9https://git.kernel.org/stable/c/7e8083f5eeedab0f460063b9c2c14c9a4e71a427https://git.kernel.org/stable/c/902120be4f44947df6311002addc7faf69bdbff1https://git.kernel.org/stable/c/a6566cd33f6f967a7651ebf2ce0dd31572e319cfhttps://git.kernel.org/stable/c/a6d57084372161f86660bc4607784420e00efe2chttps://git.kernel.org/stable/c/ae0bb9c1fb7c2594519aeeb096cf2c3b7837b322