CVE-2026-43379

Katalog CVE

CVSS 9.8 · Critical EPSS 0,65%

Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 9.8 (Critical) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close() opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is being accessed after rcu_read_unlock() has been called. This creates a race condition where the memory could be freed by a concurrent writer between the unlock and the subsequent pointer dereferences (opinfo->is_lease, etc.), leading to a use-after-free.

Rincian

Terbit di NVD

8 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,65% peluang dieksploitasi; lebih tinggi dari 49,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/960699317d39f46611f4ebeb69edc567c1f4e6b6 patch
• https://git.kernel.org/stable/c/b3568347c51c46e2cabc356bc34676df98296619 patch
• https://git.kernel.org/stable/c/bf4d66d72e4a9e268c1012c331ce9eaedb5e2086 patch
• https://git.kernel.org/stable/c/dbbd328cf58261ca239756fe1c0d10c9518d3399 patch
• https://git.kernel.org/stable/c/eac3361e3d5dd8067b3258c69615888eb45e9f25 patch