CVE-2025-21879

Katalog CVE

CVSS 7.8 · High EPSS 0,20%

Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut CISA ADP.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix use-after-free on inode when scanning root during em shrinking At btrfs_scan_root() we are accessing the inode's root (and fs_info) in a call to btrfs_fs_closing() after we have scheduled the inode for a delayed iput, and that can result in a use-after-free on the inode in case the cleaner kthread does the iput before we dereference the inode in the call to btrfs_fs_closing(). Fix this by using the fs_info stored already in a local variable instead of doing inode->root->fs_info.

Rincian

Terbit di NVD

27 Maret 2025

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.8 (High), sumber CISA ADP
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)

0,20% peluang dieksploitasi; lebih tinggi dari 9,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/59f37036bb7ab3d554c24abc856aabca01126414 patch
• https://git.kernel.org/stable/c/5e79d26014f9386387575b9ed60d342057cee49b patch
• https://git.kernel.org/stable/c/07836bc18f4ae42da4e922244f4685561c18755e