CVE-2026-23261

Katalog CVE

CVSS 5.5 · Medium EPSS 0,11%

Kerentanan Missing Release of Memory after Effective Lifetime pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: nvme-fc: release admin tagset if init fails nvme_fabrics creates an NVMe/FC controller in following path: nvmf_dev_write() -> nvmf_create_ctrl() -> nvme_fc_create_ctrl() -> nvme_fc_init_ctrl() nvme_fc_init_ctrl() allocates the admin blk-mq resources right after nvme_add_ctrl() succeeds. If any of the subsequent steps fail (changing the controller state, scheduling connect work, etc.), we jump to the fail_ctrl path, which tears down the controller references but never frees the admin queue/tag set. The leaked blk-mq allocations match the kmemleak report seen during blktests nvme/fc. Check ctrl->ctrl.admin_tagset in the fail_ctrl path and call nvme_remove_admin_tag_set() when it is set so that all admin queue allocations are reclaimed whenever controller setup aborts.

Rincian

Terbit di NVD

18 Maret 2026

Terakhir diubah

17 Juni 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

Jenis kelemahan (CWE)

CWE-401: Missing Release of Memory after Effective Lifetime

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/7c54d3f5ebbc5982daaa004260242dc07ac943ea patch
• https://git.kernel.org/stable/c/d1877cc7270302081a315a81a0ee8331f19f95c8 patch
• https://git.kernel.org/stable/c/e810b290922c535feb34bc90ab549446fe94d2a3 patch
• https://git.kernel.org/stable/c/fa301aef50e3f3b5be6ee53457608beae5aa7a01 patch