UBUNTU-CVE-2026-43239
In the Linux kernel, the following vulnerability has been resolved: smb: client: prevent races in ->query_interfaces() It was possible for two query interface works to be concurrently trying to update the interfaces. Prevent this by checking and updating iface_last_update under iface_lock.
02 / AFFECTED SOFTWARE
Affected packages
37 explicit affected versions
49 explicit affected versions
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38 explicit affected versions
9 explicit affected versions
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11 explicit affected versions
38 explicit affected versions
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10 explicit affected versions
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78 explicit affected versions
14 explicit affected versions
11 explicit affected versions
1 explicit affected versions
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11 explicit affected versions
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13 explicit affected versions
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35 explicit affected versions
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44 explicit affected versions
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8 explicit affected versions
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11 explicit affected versions
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14 explicit affected versions
10 explicit affected versions
1 explicit affected versions
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16 explicit affected versions
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37 explicit affected versions
10 explicit affected versions
11 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
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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
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18 explicit affected versions
11 explicit affected versions
5 explicit affected versions
12 explicit affected versions
11 explicit affected versions
7 explicit affected versions
12 explicit affected versions
10 explicit affected versions
16 explicit affected versions
5 explicit affected versions
10 explicit affected versions
26 explicit affected versions
39 explicit affected versions
1 explicit affected versions
35 explicit affected versions
46 explicit affected versions
11 explicit affected versions
10 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
15 explicit affected versions
51 explicit affected versions
16 explicit affected versions
18 explicit affected versions
41 explicit affected versions
12 explicit affected versions
71 explicit affected versions
7 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
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
45 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: smb: client: prevent races in ->query_interfaces() It was possible for two query interface works to be concurrently trying to update the interfaces. Prevent this by checking and updating iface_last_update under iface_lock.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/c3c06e42e1527716c54f3ad2ced6a034b5f3a489
- https://ubuntu.com/security/CVE-2026-43239
- 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-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-2026-43239