CVE-2021-44733

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

7.0 (HIGH) מקור הציון: NVD CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — סבירות ניצול

1% (אחוזון 100) נכון ל-28/10/2026

CWE

CWE-362

מוצרים מושפעים

linux: linux kernel; redhat: enterprise linux; fedoraproject: fedora; debian: debian linux; netapp: h410c firmware; netapp: h410c; netapp: h300s firmware; netapp: h300s; netapp: h500s firmware; netapp: h500s; netapp: h700s firmware; netapp: h700s; netapp: h300e firmware; netapp: h300e; netapp: h500e firmware

קישורים

• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers‮… Vendor Advisory
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers‮… Vendor Advisory
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfd‮… Patch
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfd‮… Patch
• https://github.com/pjlantz/optee-qemu/blob/main/README.md ExploitThird Party Advisory
• https://github.com/pjlantz/optee-qemu/blob/main/README.md ExploitThird Party Advisory
• https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html Mailing ListThird Party Advisory
• https://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander%40linaro.‮… Third Party Advisory
• https://security.netapp.com/advisory/ntap-20220114-0003/ Third Party Advisory
• https://www.debian.org/security/2022/dsa-5096 Third Party Advisory