CVE-2026-23193

Katalog CVE

CVSS 7.8 · High EPSS 0,28%

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: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() In iscsit_dec_session_usage_count(), the function calls complete() while holding the sess->session_usage_lock. Similar to the connection usage count logic, the waiter signaled by complete() (e.g., in the session release path) may wake up and free the iscsit_session structure immediately. This creates a race condition where the current thread may attempt to execute spin_unlock_bh() on a session structure that has already been deallocated, resulting in a KASAN slab-use-after-free. To resolve this, release the session_usage_lock before calling complete() to ensure all dereferences of the sess pointer are finished before the waiter is allowed to proceed with deallocation.

Rincian

Terbit di NVD

14 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Modified

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)

0,28% peluang dieksploitasi; lebih tinggi dari 19,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/11ebafffce31efc6abeb28c509017976fc49f1ca patch
• https://git.kernel.org/stable/c/2b64015550a13bcc72910be0565548d9a754d46d patch
• https://git.kernel.org/stable/c/41b86a9ec037bd3435d68dd3692f0891a207e7e7 patch
• https://git.kernel.org/stable/c/4530f4e4d0e6a207110b0ffed0c911bca43531a4 patch
• https://git.kernel.org/stable/c/84dc6037390b8607c5551047d3970336cb51ba9a patch
• https://git.kernel.org/stable/c/d8dbdc146e9e9a976931b78715be2e91299049f9 patch
• https://git.kernel.org/stable/c/fd8b0900173307039d3a84644c2fee041a7ed4fb patch