CVEvulnerability

CVE-2021-44733

7.0 HIGH Published 2021-12-22 Modified 2026-08-05 Official page ↗
Status
Analyzed
Published
2021-12-22
Last modified
2026-08-05
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
4.4 MEDIUM — AV:L/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-362

Description

A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11. This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object.

Affected configurations

• linux linux kernel (>= 4.12 < 4.14.261) • linux linux kernel (>= 4.15 < 4.19.224) • linux linux kernel (>= 4.20 < 5.4.170) • linux linux kernel (>= 5.5 < 5.10.89) • linux linux kernel (>= 5.11 < 5.15.12) • redhat enterprise linux 8.0 • fedoraproject fedora 35 • debian debian linux 9.0 • debian debian linux 10.0 • debian debian linux 11.0 • netapp h410c firmware • netapp h300s firmware • netapp h500s firmware • netapp h700s firmware • netapp h300e firmware • netapp h500e firmware • netapp h700e firmware • netapp h410s firmware

Related

Weakness · CWE (1)

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness

References