CVE-2026-31638

Katalog CVE

CVSS 7.5 · High EPSS 0,63%

Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 7.5 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Only put the call ref if one was acquired rxrpc_input_packet_on_conn() can process a to-client packet after the current client call on the channel has already been torn down. In that case chan->call is NULL, rxrpc_try_get_call() returns NULL and there is no reference to drop. The client-side implicit-end error path does not account for that and unconditionally calls rxrpc_put_call(). This turns a protocol error path into a kernel crash instead of rejecting the packet. Only drop the call reference if one was actually acquired. Keep the existing protocol error handling unchanged.

Rincian

Terbit di NVD

24 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,63% peluang dieksploitasi; lebih tinggi dari 48,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0c156aff8a2d4fa0d61db7837641975cf0e5452d patch
• https://git.kernel.org/stable/c/6331f1b24a3e85465f6454e003a3e6c22005a5c5 patch
• https://git.kernel.org/stable/c/8299ca146489664e3c0c90a3b8900d8335b1ede4 patch
• https://git.kernel.org/stable/c/9fb09861e2b8d1abfe2efaf260c9f1d30080ea38 patch
• https://git.kernel.org/stable/c/b8f66447448d6c305a51413a67ec8ed26aa7d1dd patch