CVE-2026-53126

Katalog CVE

CVSS 5.5 · Medium EPSS 0,11%

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

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix disk reference leak in blkcg_maybe_throttle_current() Add the missing put_disk() on the error path in blkcg_maybe_throttle_current(). When blkcg lookup, blkg lookup, or blkg_tryget() fails, the function jumps to the out label which only calls rcu_read_unlock() but does not release the disk reference acquired by blkcg_schedule_throttle() via get_device(). Since current->throttle_disk is already set to NULL before the lookup, blkcg_exit() cannot release this reference either, causing the disk to never be freed. Restore the reference release that was present as blk_put_queue() in the original code but was inadvertently dropped during the conversion from request_queue to gendisk.

Rincian

Terbit di NVD

24 Juni 2026

Terakhir diubah

23 Juli 2026

Status NVD

Analyzed

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

EPSS (30 hari)

0,11% peluang dieksploitasi; lebih tinggi dari 1,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/000e8454692cab9d1f1b80130e2870e355301d06 patch
• https://git.kernel.org/stable/c/23308af722fefed00af5f238024c11710938fba3 patch
• https://git.kernel.org/stable/c/4048ed98860d3785645ebbd34f69566a6c7320c3 patch
• https://git.kernel.org/stable/c/73a5af059905d171b398c8b2381632ee499948b5 patch
• https://git.kernel.org/stable/c/b3e005f16cd98f815429a87aef4c61e9c140779f patch