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| CVE ID: | CVE-2021-44733 |
| 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. |
| Test IDs: | None available |
| Cross References: |
Common Vulnerability Exposure (CVE) ID: CVE-2021-44733 Debian Security Information: DSA-5096 (Google Search) https://www.debian.org/security/2022/dsa-5096 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfd0743f1d9ea76931510ed150334d571fbab49d https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/tee/tee_shm.c https://github.com/pjlantz/optee-qemu/blob/main/README.md https://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander@linaro.org/ https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html |