UBUNTU-CVE-2024-39494
In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry's dname.name ->d_name.name can change on rename and the earlier value can be freed; there are conditions sufficient to stabilize it (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusive on the parent's inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead.
02 / AFFECTED SOFTWARE
Affected packages
31 explicit affected versions
1 explicit affected versions
35 explicit affected versions
26 explicit affected versions
13 explicit affected versions
9 explicit affected versions
1 explicit affected versions
74 explicit affected versions
5 explicit affected versions
8 explicit affected versions
7 explicit affected versions
1 explicit affected versions
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13 explicit affected versions
13 explicit affected versions
2 explicit affected versions
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11 explicit affected versions
36 explicit affected versions
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50 explicit affected versions
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17 explicit affected versions
12 explicit affected versions
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6 explicit affected versions
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10 explicit affected versions
45 explicit affected versions
66 explicit affected versions
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45 explicit affected versions
3 explicit affected versions
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52 explicit affected versions
7 explicit affected versions
51 explicit affected versions
4 explicit affected versions
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13 explicit affected versions
65 explicit affected versions
6 explicit affected versions
35 explicit affected versions
12 explicit affected versions
18 explicit affected versions
13 explicit affected versions
96 explicit affected versions
38 explicit affected versions
9 explicit affected versions
1 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
101 explicit affected versions
13 explicit affected versions
21 explicit affected versions
16 explicit affected versions
50 explicit affected versions
11 explicit affected versions
7 explicit affected versions
12 explicit affected versions
43 explicit affected versions
12 explicit affected versions
14 explicit affected versions
7 explicit affected versions
83 explicit affected versions
12 explicit affected versions
98 explicit affected versions
106 explicit affected versions
12 explicit affected versions
4 explicit affected versions
94 explicit affected versions
10 explicit affected versions
5 explicit affected versions
10 explicit affected versions
167 explicit affected versions
37 explicit affected versions
100 explicit affected versions
7 explicit affected versions
1 explicit affected versions
29 explicit affected versions
86 explicit affected versions
13 explicit affected versions
56 explicit affected versions
3 explicit affected versions
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1 explicit affected versions
81 explicit affected versions
54 explicit affected versions
98 explicit affected versions
16 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
1 explicit affected versions
94 explicit affected versions
11 explicit affected versions
12 explicit affected versions
117 explicit affected versions
7 explicit affected versions
12 explicit affected versions
96 explicit affected versions
2 explicit affected versions
43 explicit affected versions
37 explicit affected versions
110 explicit affected versions
53 explicit affected versions
130 explicit affected versions
10 explicit affected versions
26 explicit affected versions
11 explicit affected versions
32 explicit affected versions
1 explicit affected versions
3 explicit affected versions
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13 explicit affected versions
11 explicit affected versions
117 explicit affected versions
56 explicit affected versions
16 explicit affected versions
56 explicit affected versions
12 explicit affected versions
44 explicit affected versions
3 explicit affected versions
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1 explicit affected versions
2 explicit affected versions
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51 explicit affected versions
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12 explicit affected versions
42 explicit affected versions
27 explicit affected versions
28 explicit affected versions
1 explicit affected versions
17 explicit affected versions
5 explicit affected versions
8 explicit affected versions
1 explicit affected versions
10 explicit affected versions
8 explicit affected versions
13 explicit affected versions
85 explicit affected versions
13 explicit affected versions
50 explicit affected versions
85 explicit affected versions
72 explicit affected versions
47 explicit affected versions
10 explicit affected versions
13 explicit affected versions
12 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
42 explicit affected versions
37 explicit affected versions
12 explicit affected versions
14 explicit affected versions
38 explicit affected versions
45 explicit affected versions
9 explicit affected versions
26 explicit affected versions
45 explicit affected versions
11 explicit affected versions
144 explicit affected versions
4 explicit affected versions
53 explicit affected versions
7 explicit affected versions
77 explicit affected versions
57 explicit affected versions
121 explicit affected versions
100 explicit affected versions
4 explicit affected versions
51 explicit affected versions
93 explicit affected versions
13 explicit affected versions
43 explicit affected versions
51 explicit affected versions
124 explicit affected versions
144 explicit affected versions
10 explicit affected versions
8 explicit affected versions
7 explicit affected versions
14 explicit affected versions
86 explicit affected versions
4 explicit affected versions
75 explicit affected versions
11 explicit affected versions
1 explicit affected versions
47 explicit affected versions
5 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry's dname.name ->d_name.name can change on rename and the earlier value can be freed; there are conditions sufficient to stabilize it (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusive on the parent's inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/be84f32bb2c981ca670922e047cdde1488b233de
- https://ubuntu.com/security/CVE-2024-39494
- https://ubuntu.com/security/notices/USN-6999-1
- https://ubuntu.com/security/notices/USN-6999-2
- https://ubuntu.com/security/notices/USN-7004-1
- https://ubuntu.com/security/notices/USN-7005-1
- https://ubuntu.com/security/notices/USN-7005-2
- https://ubuntu.com/security/notices/USN-7008-1
- https://ubuntu.com/security/notices/USN-7021-1
- https://ubuntu.com/security/notices/USN-7021-2
- https://ubuntu.com/security/notices/USN-7021-3
- https://ubuntu.com/security/notices/USN-7021-4
- https://ubuntu.com/security/notices/USN-7021-5
- https://ubuntu.com/security/notices/USN-7022-1
- https://ubuntu.com/security/notices/USN-7022-2
- https://ubuntu.com/security/notices/USN-7022-3
- https://ubuntu.com/security/notices/USN-7029-1
- https://ubuntu.com/security/notices/USN-7069-1
- https://ubuntu.com/security/notices/USN-7069-2
- https://ubuntu.com/security/notices/USN-7110-1
- https://ubuntu.com/security/notices/USN-7119-1
- https://www.cve.org/CVERecord?id=CVE-2024-39494