UBUNTU-CVE-2026-43384
In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
6 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
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6 explicit affected versions
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10 explicit affected versions
36 explicit affected versions
26 explicit affected versions
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39 explicit affected versions
13 explicit affected versions
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35 explicit affected versions
18 explicit affected versions
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13 explicit affected versions
4 explicit affected versions
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51 explicit affected versions
1 explicit affected versions
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7 explicit affected versions
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10 explicit affected versions
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47 explicit affected versions
8 explicit affected versions
7 explicit affected versions
12 explicit affected versions
11 explicit affected versions
7 explicit affected versions
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10 explicit affected versions
1 explicit affected versions
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16 explicit affected versions
12 explicit affected versions
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12 explicit affected versions
40 explicit affected versions
16 explicit affected versions
16 explicit affected versions
27 explicit affected versions
33 explicit affected versions
10 explicit affected versions
37 explicit affected versions
10 explicit affected versions
8 explicit affected versions
13 explicit affected versions
38 explicit affected versions
3 explicit affected versions
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11 explicit affected versions
26 explicit affected versions
9 explicit affected versions
13 explicit affected versions
29 explicit affected versions
13 explicit affected versions
12 explicit affected versions
40 explicit affected versions
39 explicit affected versions
8 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
19 explicit affected versions
18 explicit affected versions
11 explicit affected versions
5 explicit affected versions
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8 explicit affected versions
7 explicit affected versions
12 explicit affected versions
7 explicit affected versions
16 explicit affected versions
5 explicit affected versions
10 explicit affected versions
26 explicit affected versions
39 explicit affected versions
35 explicit affected versions
46 explicit affected versions
11 explicit affected versions
8 explicit affected versions
13 explicit affected versions
45 explicit affected versions
16 explicit affected versions
49 explicit affected versions
3 explicit affected versions
7 explicit affected versions
14 explicit affected versions
51 explicit affected versions
15 explicit affected versions
18 explicit affected versions
41 explicit affected versions
12 explicit affected versions
5 explicit affected versions
27 explicit affected versions
42 explicit affected versions
8 explicit affected versions
5 explicit affected versions
8 explicit affected versions
10 explicit affected versions
7 explicit affected versions
45 explicit affected versions
13 explicit affected versions
13 explicit affected versions
7 explicit affected versions
8 explicit affected versions
10 explicit affected versions
12 explicit affected versions
9 explicit affected versions
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16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
45 explicit affected versions
37 explicit affected versions
49 explicit affected versions
14 explicit affected versions
38 explicit affected versions
9 explicit affected versions
16 explicit affected versions
11 explicit affected versions
38 explicit affected versions
17 explicit affected versions
13 explicit affected versions
6 explicit affected versions
7 explicit affected versions
4 explicit affected versions
8 explicit affected versions
1 explicit affected versions
13 explicit affected versions
43 explicit affected versions
13 explicit affected versions
10 explicit affected versions
8 explicit affected versions
44 explicit affected versions
14 explicit affected versions
4 explicit affected versions
78 explicit affected versions
13 explicit affected versions
11 explicit affected versions
1 explicit affected versions
18 explicit affected versions
38 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/67edfec516d30d3e62925c397be4a1e5185802fc
- https://git.kernel.org/stable/c/080b0e210088296dd50d6637c06c1db14246adfe
- https://git.kernel.org/stable/c/67edfec516d30d3e62925c397be4a1e5185802fc
- https://git.kernel.org/stable/c/8be6ed64966da48b6c4726918f106c18742a5125
- https://git.kernel.org/stable/c/a269cbdc442f8658bca35383e34b9d0b0ff95a1c
- https://ubuntu.com/security/CVE-2026-43384
- https://ubuntu.com/security/notices/USN-8490-1
- https://ubuntu.com/security/notices/USN-8490-2
- https://ubuntu.com/security/notices/USN-8491-1
- https://ubuntu.com/security/notices/USN-8492-1
- https://ubuntu.com/security/notices/USN-8492-2
- https://ubuntu.com/security/notices/USN-8492-3
- https://ubuntu.com/security/notices/USN-8492-4
- https://ubuntu.com/security/notices/USN-8492-5
- https://ubuntu.com/security/notices/USN-8497-1
- https://ubuntu.com/security/notices/USN-8498-1
- https://ubuntu.com/security/notices/USN-8499-1
- https://ubuntu.com/security/notices/USN-8508-1
- https://ubuntu.com/security/notices/USN-8545-1
- https://ubuntu.com/security/notices/USN-8546-1
- https://ubuntu.com/security/notices/USN-8604-1
- https://ubuntu.com/security/notices/USN-8605-1
- https://ubuntu.com/security/notices/USN-8606-1
- https://ubuntu.com/security/notices/USN-8607-1
- https://ubuntu.com/security/notices/USN-8609-1
- https://ubuntu.com/security/notices/USN-8619-1
- https://www.cve.org/CVERecord?id=CVE-2026-43384