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CVE-2021-44733

CVE-2021-44733

EPSS 0.7%
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 products
n/a · n/a

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References
https://github.com/pjlantz/optee-qemu/blob/main/README.mdhttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfd0743f1d9ea76931510ed150334d571fbab49dhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/tee/tee_shm.chttps://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlhttps://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander%40linaro.org/https://security.netapp.com/advisory/ntap-20220114-0003/https://www.debian.org/security/2022/dsa-5096