CVE-2026-46267

Katalog CVE

CVSS 7.8 · High EPSS 0,18%

Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: nfc: hci: shdlc: Stop timers and work before freeing context llc_shdlc_deinit() purges SHDLC skb queues and frees the llc_shdlc structure while its timers and state machine work may still be active. Timer callbacks can schedule sm_work, and sm_work accesses SHDLC state and the skb queues. If teardown happens in parallel with a queued/running work item, it can lead to UAF and other shutdown races. Stop all SHDLC timers and cancel sm_work synchronously before purging the queues and freeing the context. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Rincian

Terbit di NVD

3 Juni 2026

Terakhir diubah

22 Juli 2026

Status NVD

Analyzed

CVSS 3.1

7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,18% peluang dieksploitasi; lebih tinggi dari 6,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/1cb97b1225450af3f7b728777929ba50c6a58ced patch
• https://git.kernel.org/stable/c/276820278e9717cc7d4bb32381892dd3ddf418d4 patch
• https://git.kernel.org/stable/c/77eef9f2eef045c3c37a3df82d3e661afb866b98 patch
• https://git.kernel.org/stable/c/a24a676329d40481b2331bfa1418a679577dfd3a patch
• https://git.kernel.org/stable/c/c60f41022eaad2a1dafecd3ae6f249a3bd6d4b6e patch
• https://git.kernel.org/stable/c/c9efde1e537baed7648a94022b43836a348a074f patch
• https://git.kernel.org/stable/c/cf70cedce327833296ebe6043364d1e44b76a2ab patch