UBUNTU-CVE-2025-71071
In the Linux kernel, the following vulnerability has been resolved: iommu/mediatek: fix use-after-free on probe deferral The driver is dropping the references taken to the larb devices during probe after successful lookup as well as on errors. This can potentially lead to a use-after-free in case a larb device has not yet been bound to its driver so that the iommu driver probe defers. Fix this by keeping the references as expected while the iommu driver is bound.
02 / AFFECTED SOFTWARE
Affected packages
5 explicit affected versions
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38 explicit affected versions
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5 explicit affected versions
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10 explicit affected versions
7 explicit affected versions
41 explicit affected versions
13 explicit affected versions
13 explicit affected versions
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8 explicit affected versions
10 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
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38 explicit affected versions
9 explicit affected versions
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34 explicit affected versions
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43 explicit affected versions
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26 explicit affected versions
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13 explicit affected versions
39 explicit affected versions
35 explicit affected versions
18 explicit affected versions
40 explicit affected versions
13 explicit affected versions
4 explicit affected versions
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1 explicit affected versions
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10 explicit affected versions
15 explicit affected versions
43 explicit affected versions
8 explicit affected versions
7 explicit affected versions
12 explicit affected versions
11 explicit affected versions
7 explicit affected versions
12 explicit affected versions
14 explicit affected versions
10 explicit affected versions
1 explicit affected versions
7 explicit affected versions
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12 explicit affected versions
4 explicit affected versions
12 explicit affected versions
36 explicit affected versions
16 explicit affected versions
12 explicit affected versions
25 explicit affected versions
29 explicit affected versions
10 explicit affected versions
37 explicit affected versions
10 explicit affected versions
4 explicit affected versions
13 explicit affected versions
35 explicit affected versions
3 explicit affected versions
10 explicit affected versions
11 explicit affected versions
26 explicit affected versions
6 explicit affected versions
13 explicit affected versions
29 explicit affected versions
13 explicit affected versions
12 explicit affected versions
36 explicit affected versions
36 explicit affected versions
3 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
15 explicit affected versions
14 explicit affected versions
11 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: iommu/mediatek: fix use-after-free on probe deferral The driver is dropping the references taken to the larb devices during probe after successful lookup as well as on errors. This can potentially lead to a use-after-free in case a larb device has not yet been bound to its driver so that the iommu driver probe defers. Fix this by keeping the references as expected while the iommu driver is bound.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/de83d4617f9fe059623e97acf7e1e10d209625b5
- https://git.kernel.org/stable/c/1ef70a0b104ae8011811f60bcfaa55ff49385171
- https://git.kernel.org/stable/c/5c04217d06a1161aaf36267e9d971ab6f847d5a7
- https://git.kernel.org/stable/c/896ec55da3b90bdb9fc04fedc17ad8c359b2eee5
- https://git.kernel.org/stable/c/de83d4617f9fe059623e97acf7e1e10d209625b5
- https://git.kernel.org/stable/c/f6c08d3aa441bbc1956e9d65f1cbb89113a5aa8a
- https://ubuntu.com/security/CVE-2025-71071
- https://ubuntu.com/security/notices/USN-8177-1
- https://ubuntu.com/security/notices/USN-8177-2
- https://ubuntu.com/security/notices/USN-8179-1
- https://ubuntu.com/security/notices/USN-8179-2
- https://ubuntu.com/security/notices/USN-8179-3
- https://ubuntu.com/security/notices/USN-8179-4
- https://ubuntu.com/security/notices/USN-8183-1
- https://ubuntu.com/security/notices/USN-8183-2
- https://ubuntu.com/security/notices/USN-8184-1
- https://ubuntu.com/security/notices/USN-8185-1
- https://ubuntu.com/security/notices/USN-8185-2
- https://ubuntu.com/security/notices/USN-8203-1
- https://ubuntu.com/security/notices/USN-8204-1
- https://ubuntu.com/security/notices/USN-8245-1
- https://ubuntu.com/security/notices/USN-8257-1
- https://ubuntu.com/security/notices/USN-8258-1
- https://ubuntu.com/security/notices/USN-8260-1
- https://ubuntu.com/security/notices/USN-8261-1
- https://ubuntu.com/security/notices/USN-8265-1
- https://ubuntu.com/security/notices/USN-8440-1
- https://www.cve.org/CVERecord?id=CVE-2025-71071