UBUNTU-CVE-2025-21863
In the Linux kernel, the following vulnerability has been resolved: io_uring: prevent opcode speculation sqe->opcode is used for different tables, make sure we santitise it against speculations.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
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89 explicit affected versions
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88 explicit affected versions
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16 explicit affected versions
3 explicit affected versions
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26 explicit affected versions
45 explicit affected versions
37 explicit affected versions
32 explicit affected versions
14 explicit affected versions
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9 explicit affected versions
11 explicit affected versions
21 explicit affected versions
7 explicit affected versions
90 explicit affected versions
7 explicit affected versions
4 explicit affected versions
79 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
88 explicit affected versions
78 explicit affected versions
78 explicit affected versions
13 explicit affected versions
43 explicit affected versions
10 explicit affected versions
8 explicit affected versions
26 explicit affected versions
14 explicit affected versions
4 explicit affected versions
78 explicit affected versions
11 explicit affected versions
1 explicit affected versions
21 explicit affected versions
77 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: io_uring: prevent opcode speculation sqe->opcode is used for different tables, make sure we santitise it against speculations.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/1e988c3fe1264708f4f92109203ac5b1d65de50b
- https://git.kernel.org/stable/c/1e988c3fe1264708f4f92109203ac5b1d65de50b
- https://git.kernel.org/stable/c/506b9b5e8c2d2a411ea8fe361333f5081c56d23a
- https://git.kernel.org/stable/c/b9826e3b26ec031e9063f64a7c735449c43955e4
- https://git.kernel.org/stable/c/fdbfd52bd8b85ed6783365ff54c82ab7067bd61b
- https://ubuntu.com/security/CVE-2025-21863
- https://ubuntu.com/security/notices/USN-7521-1
- https://ubuntu.com/security/notices/USN-7521-2
- https://ubuntu.com/security/notices/USN-7521-3
- https://ubuntu.com/security/notices/USN-7703-1
- https://ubuntu.com/security/notices/USN-7703-2
- https://ubuntu.com/security/notices/USN-7703-3
- https://ubuntu.com/security/notices/USN-7703-4
- https://ubuntu.com/security/notices/USN-7719-1
- https://ubuntu.com/security/notices/USN-7737-1
- https://ubuntu.com/security/notices/USN-8575-1
- https://ubuntu.com/security/notices/USN-8575-2
- https://ubuntu.com/security/notices/USN-8575-3
- https://ubuntu.com/security/notices/USN-8576-1
- https://ubuntu.com/security/notices/USN-8576-2
- https://ubuntu.com/security/notices/USN-8610-1
- https://ubuntu.com/security/notices/USN-8620-1
- https://ubuntu.com/security/notices/USN-8620-2
- https://ubuntu.com/security/notices/USN-8620-3
- https://ubuntu.com/security/notices/USN-8620-4
- https://www.cve.org/CVERecord?id=CVE-2025-21863