VULNERABILITY INTELLIGENCE

CVE-2022-49053

CVSS score7.8 HIGH
EPSS probability0.29%
CISA KEVNot currently listed
Published2025-02-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not take refcount properly and just returns page pointer. When tcmu_try_get_data_page() returns, the returned page may have been freed by tcmu_blocks_release(). We need to get_page() under cmdr_lock to avoid concurrent tcmu_blocks_release().

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-416

Primary references