CVE-2026-74608

Katalog CVE

CVSS 9.8 · Critical EPSS 0,48%

Skor CVSS 3.1 9.8 (Critical) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free in cifs_try_adding_channels() cifs_try_adding_channels() takes a temporary reference to an interface before dropping iface_lock. If cifs_ses_add_channel() fails, it drops that reference and then increments iface->weight_fulfilled. A concurrent interface list refresh can remove the list reference while channel creation is in progress. In that case, the failure-path kref_put() releases the last reference and frees iface. Updating weight_fulfilled afterward then accesses freed memory. Increment weight_fulfilled before dropping the temporary reference, keeping iface alive for the final access.

Rincian

Terbit di NVD

22 Agustus 2026

Terakhir diubah

25 Agustus 2026

Status NVD

Received

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

EPSS (30 hari)

0,48% peluang dieksploitasi; lebih tinggi dari 39,4% 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/1305eadc6a7d78a8d0a52eee29ddd2d9e8a27805
• https://git.kernel.org/stable/c/1ffacbadc14530e55b8d86f7b917524f6a0fb891
• https://git.kernel.org/stable/c/47dfac48bce7198ad4f1a388fc8c9491f878ac3b
• https://git.kernel.org/stable/c/4986410316b1ae0e63c6ce418e4eb196723626e7
• https://git.kernel.org/stable/c/64d7584e62ac8cdc750455c5fdc6008fc2de4f06
• https://git.kernel.org/stable/c/c292d4686f717c03e5022fc4ae7c782f39a94915