CVE-2026-31455

Katalog CVE

CVSS 7.8 · High EPSS 0,17%

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: xfs: stop reclaim before pushing AIL during unmount The unmount sequence in xfs_unmount_flush_inodes() pushed the AIL while background reclaim and inodegc are still running. This is broken independently of any use-after-free issues - background reclaim and inodegc should not be running while the AIL is being pushed during unmount, as inodegc can dirty and insert inodes into the AIL during the flush, and background reclaim can race to abort and free dirty inodes. Reorder xfs_unmount_flush_inodes() to stop inodegc and cancel background reclaim before pushing the AIL. Stop inodegc before cancelling m_reclaim_work because the inodegc worker can re-queue m_reclaim_work via xfs_inodegc_set_reclaimable.

Rincian

Terbit di NVD

22 April 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-416: Use After Free

EPSS (30 hari)

0,17% peluang dieksploitasi; lebih tinggi dari 5,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/239d734c00644072862fa833805c4471573b1445 patch
• https://git.kernel.org/stable/c/4f24a767e3d64a5f58c595b5c29b6063a201f1e3 patch
• https://git.kernel.org/stable/c/558e3275d8a3b101be18a7fe7d1634053e9d9b07 patch
• https://git.kernel.org/stable/c/8147e304d7d32fd5c3e943babc296ce2873dc279 patch
• https://git.kernel.org/stable/c/a89434a6188d8430ea31120da96e3e4cefb58686 patch
• https://git.kernel.org/stable/c/bda27fc0b4eb3a425d9a18475c4cb94fbe862c60 patch
• https://git.kernel.org/stable/c/d38135af04a3ad8a585c899d176efc8e97853115 patch
• https://git.kernel.org/stable/c/e6cc490048f78b009259a5f032acead9f789c34c patch