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.
Exploits (1)
References (7)
Core 7
Core References
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
Third Party Advisory vendor-advisory
https://www.debian.org/security/2022/dsa-5096
Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/tee/tee_shm.c
Exploit, Third Party Advisory
https://github.com/pjlantz/optee-qemu/blob/main/README.md
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220114-0003/
Scores
CVSS v3
7.0
EPSS
0.0028
EPSS Percentile
51.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-362
Status
published
Products (14)
debian/debian_linux
9.0
debian/debian_linux
10.0
debian/debian_linux
11.0
fedoraproject/fedora
35
linux/linux_kernel
< 5.15.11
netapp/h300e_firmware
netapp/h300s_firmware
netapp/h410c_firmware
netapp/h410s_firmware
netapp/h500e_firmware
... and 4 more
Published
Dec 22, 2021
Tracked Since
Feb 18, 2026