CVE-2026-63800

Katalog CVE

CVSS 9.8 · Critical EPSS 0,53%

Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 9.8 (Critical) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: pNFS: Fix use-after-free in pnfs_update_layout() When hitting the NFS_LAYOUT_RETURN branch in pnfs_update_layout(), the code calls pnfs_prepare_to_retry_layoutget(lo). If it succeeds, pnfs_put_layout_hdr(lo) is called before trace_pnfs_update_layout(), which still references 'lo'. This results in a use-after-free when the tracepoint accesses lo's fields. Fix this by moving the tracepoint call before pnfs_put_layout_hdr(lo).

Rincian

Terbit di NVD

19 Juli 2026

Terakhir diubah

17 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,53% peluang dieksploitasi; lebih tinggi dari 43,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/13e198a90ca4050f4bee8a3f23680389a6563ccc patch
• https://git.kernel.org/stable/c/1f24b8302c77dcaf79c64c073877a3b9f4dd25d2 patch
• https://git.kernel.org/stable/c/200e7637f4d6a1342987045eea72641524f909dc patch
• https://git.kernel.org/stable/c/2883ddd7542b4437a2ab4908fe2773f690e20889 patch
• https://git.kernel.org/stable/c/4ad8b9a85dbf57ca532ee9e65ad7e6498bfbbf98 patch
• https://git.kernel.org/stable/c/7e37e9b3e82ade881e1798e2f4fcc54aff7793c1 patch
• https://git.kernel.org/stable/c/9645aaf689aff57427ece3b9fa47d5b5399417f4 patch
• https://git.kernel.org/stable/c/9c0fb5c09ae5bd68dc0038692af8127029cb0385 patch