CVE-2026-43007

Katalog CVE

CVSS 7.8 · High EPSS 0,18%

Kerentanan Double 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: accel/qaic: Handle DBC deactivation if the owner went away When a DBC is released, the device sends a QAIC_TRANS_DEACTIVATE_FROM_DEV transaction to the host over the QAIC_CONTROL MHI channel. QAIC handles this by calling decode_deactivate() to release the resources allocated for that DBC. Since that handling is done in the qaic_manage_ioctl() context, if the user goes away before receiving and handling the deactivation, the host will be out-of-sync with the DBCs available for use, and the DBC resources will not be freed unless the device is removed. If another user loads and requests to activate a network, then the device assigns the same DBC to that network, QAIC will "indefinitely" wait for dbc->in_use = false, leading the user process to hang. As a solution to this, handle QAIC_TRANS_DEACTIVATE_FROM_DEV transactions that are received after the user has gone away.

Rincian

Terbit di NVD

1 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

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-415: Double Free

EPSS (30 hari)

0,18% peluang dieksploitasi; lebih tinggi dari 6,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/08021f2d4a557d6491e3bcc288e96425f50aa3cf patch
• https://git.kernel.org/stable/c/2dd67966f39a2abf8ccb4865031c722e40e01b7f patch
• https://git.kernel.org/stable/c/2feec5ae5df785658924ab6bd91280dc3926507c patch
• https://git.kernel.org/stable/c/ee0180e77e6c8482644569632065411de844c515 patch
• https://git.kernel.org/stable/c/f403094d9075d7c565a3d81002b781c325cb3c07 patch