UBUNTU-CVE-2021-44733
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.
02 / AFFECTED SOFTWARE
Affected packages
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
15 explicit affected versions
78 explicit affected versions
41 explicit affected versions
58 explicit affected versions
31 explicit affected versions
9 explicit affected versions
90 explicit affected versions
5 explicit affected versions
4 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
21 explicit affected versions
8 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
45 explicit affected versions
5 explicit affected versions
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12 explicit affected versions
44 explicit affected versions
33 explicit affected versions
10 explicit affected versions
28 explicit affected versions
56 explicit affected versions
1 explicit affected versions
26 explicit affected versions
5 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
72 explicit affected versions
1 explicit affected versions
46 explicit affected versions
33 explicit affected versions
10 explicit affected versions
57 explicit affected versions
11 explicit affected versions
12 explicit affected versions
80 explicit affected versions
7 explicit affected versions
44 explicit affected versions
76 explicit affected versions
41 explicit affected versions
1 explicit affected versions
12 explicit affected versions
23 explicit affected versions
34 explicit affected versions
5 explicit affected versions
1 explicit affected versions
1 explicit affected versions
38 explicit affected versions
5 explicit affected versions
35 explicit affected versions
1 explicit affected versions
34 explicit affected versions
13 explicit affected versions
1 explicit affected versions
34 explicit affected versions
10 explicit affected versions
5 explicit affected versions
31 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
28 explicit affected versions
38 explicit affected versions
9 explicit affected versions
34 explicit affected versions
14 explicit affected versions
88 explicit affected versions
65 explicit affected versions
4 explicit affected versions
22 explicit affected versions
56 explicit affected versions
34 explicit affected versions
43 explicit affected versions
1 explicit affected versions
105 explicit affected versions
35 explicit affected versions
4 explicit affected versions
23 explicit affected versions
1 explicit affected versions
12 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://bugzilla.redhat.com/show_bug.cgi?id=2030747
- https://ubuntu.com/security/CVE-2021-44733
- https://ubuntu.com/security/notices/USN-5278-1
- https://ubuntu.com/security/notices/USN-5337-1
- https://ubuntu.com/security/notices/USN-5338-1
- https://ubuntu.com/security/notices/USN-5339-1
- https://ubuntu.com/security/notices/USN-5368-1
- https://ubuntu.com/security/notices/USN-5377-1
- https://www.cve.org/CVERecord?id=CVE-2021-44733