CVE-2026-98261

Katalog CVE

CVSS 8.1 · High EPSS 0,44%

Skor CVSS 3.1 8.1 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix server use-after-free in cifs_chan_skip_or_disable() When a secondary channel is no longer supported by the server, cifs_chan_skip_or_disable() drops the channel reference with cifs_put_tcp_session() and then continues to use the server pointer by calling cifs_signal_cifsd_for_reconnect() on it and reading its primary_server pointer. cifs_put_tcp_session() can drop the last reference of the channel and tear it down, so both the channel and the primary server (whose reference is also dropped by cifs_put_tcp_session()) can be freed before they are signaled for reconnect. Signal the channel and the primary server and capture the primary server pointer before dropping the channel reference with cifs_put_tcp_session().

Rincian

Terbit di NVD

6 Oktober 2026

Terakhir diubah

7 Oktober 2026

Status NVD

Received

CVSS 3.1

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

EPSS (30 hari)

0,44% peluang dieksploitasi; lebih tinggi dari 36,5% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0338489960ddad6368bce55e8adbc176c523093d
• https://git.kernel.org/stable/c/717e0a25036b6c92cecace30913b2d874a4c22b8
• https://git.kernel.org/stable/c/7a1b27780b113583a94256d58dabfe7c0d9286e7
• https://git.kernel.org/stable/c/edd52eae5fcfb8433b6bb0e7cd98db438fe01227
• https://git.kernel.org/stable/c/fcc0a935bb6e37ecbf7e4335061309f896f35780