CVE-2025-39698

Katalog CVE

CVSS 5.5 · Medium EPSS 0,19%

Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: io_uring/futex: ensure io_futex_wait() cleans up properly on failure The io_futex_data is allocated upfront and assigned to the io_kiocb async_data field, but the request isn't marked with REQ_F_ASYNC_DATA at that point. Those two should always go together, as the flag tells io_uring whether the field is valid or not. Additionally, on failure cleanup, the futex handler frees the data but does not clear ->async_data. Clear the data and the flag in the error path as well. Thanks to Trend Micro Zero Day Initiative and particularly ReDress for reporting this.

Rincian

Terbit di NVD

5 September 2025

Terakhir diubah

30 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-416: Use After Free
CWE-672: Operation on a Resource after Expiration or Release

EPSS (30 hari)

0,19% peluang dieksploitasi; lebih tinggi dari 8,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/508c1314b342b78591f51c4b5dadee31a88335df patch
• https://git.kernel.org/stable/c/d34c04152df517c59979b4bf2a47f491e06d3256 patch
• https://git.kernel.org/stable/c/d9f93172820a53ab42c4b0e5e65291f4f9d00ad2 patch
• https://www.zerodayinitiative.com/advisories/ZDI-25-915/ advisory pihak ketiga