CVE-2026-31422

linux kernel

TLP:CLEAR

csirt@kutim:~/threat-intel/cve/CVE-2026-31422

Katalog CVE

CVSS 5.5 · Medium EPSS 0,17%

Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_flow: fix NULL pointer dereference on shared blocks flow_change() calls tcf_block_q() and dereferences q->handle to derive a default baseclass. Shared blocks leave block->q NULL, causing a NULL deref when a flow filter without a fully qualified baseclass is created on a shared block. Check tcf_block_shared() before accessing block->q and return -EINVAL for shared blocks. This avoids the null-deref shown below: ======================================================================= KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f] RIP: 0010:flow_change (net/sched/cls_flow.c:508) Call Trace: tc_new_tfilter (net/sched/cls_api.c:2432) rtnetlink_rcv_msg (net/core/rtnetlink.c:6980) [...] =======================================================================

Rincian

Terbit di NVD
13 April 2026
Terakhir diubah
14 Juli 2026
Status NVD
Modified
CVSS 3.1
5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-476: NULL Pointer Dereference
EPSS (30 hari)
0,17% peluang dieksploitasi; lebih tinggi dari 5,9% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
linux linux kernel Versi 4.15 hingga sebelum 5.10.253
linux linux kernel Versi 5.11 hingga sebelum 5.15.203
linux linux kernel Versi 5.16 hingga sebelum 6.1.168
linux linux kernel Versi 6.2 hingga sebelum 6.6.134
linux linux kernel Versi 6.7 hingga sebelum 6.12.81
linux linux kernel Versi 6.13 hingga sebelum 6.18.22
linux linux kernel Versi 6.19 hingga sebelum 6.19.12
linux linux kernel Versi 7.0 rc1
linux linux kernel Versi 7.0 rc2
linux linux kernel Versi 7.0 rc3
linux linux kernel Versi 7.0 rc4
linux linux kernel Versi 7.0 rc5
linux linux kernel Versi 7.0 rc6

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.