UBUNTU-CVE-2025-21947
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix type confusion via race condition when using ipc_msg_send_request req->handle is allocated using ksmbd_acquire_id(&ipc_ida), based on ida_alloc. req->handle from ksmbd_ipc_login_request and FSCTL_PIPE_TRANSCEIVE ioctl can be same and it could lead to type confusion between messages, resulting in access to unexpected parts of memory after an incorrect delivery. ksmbd check type of ipc response but missing add continue to check next ipc reponse.
02 / AFFECTED SOFTWARE
Affected packages
6 explicit affected versions
32 explicit affected versions
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14 explicit affected versions
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80 explicit affected versions
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27 explicit affected versions
8 explicit affected versions
55 explicit affected versions
5 explicit affected versions
23 explicit affected versions
10 explicit affected versions
13 explicit affected versions
68 explicit affected versions
11 explicit affected versions
89 explicit affected versions
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19 explicit affected versions
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24 explicit affected versions
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10 explicit affected versions
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90 explicit affected versions
7 explicit affected versions
84 explicit affected versions
26 explicit affected versions
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13 explicit affected versions
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35 explicit affected versions
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10 explicit affected versions
50 explicit affected versions
18 explicit affected versions
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1 explicit affected versions
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7 explicit affected versions
4 explicit affected versions
12 explicit affected versions
12 explicit affected versions
25 explicit affected versions
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19 explicit affected versions
18 explicit affected versions
10 explicit affected versions
37 explicit affected versions
6 explicit affected versions
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26 explicit affected versions
1 explicit affected versions
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37 explicit affected versions
29 explicit affected versions
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25 explicit affected versions
25 explicit affected versions
10 explicit affected versions
4 explicit affected versions
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12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
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10 explicit affected versions
26 explicit affected versions
2 explicit affected versions
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69 explicit affected versions
20 explicit affected versions
31 explicit affected versions
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30 explicit affected versions
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91 explicit affected versions
34 explicit affected versions
3 explicit affected versions
51 explicit affected versions
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26 explicit affected versions
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3 explicit affected versions
8 explicit affected versions
10 explicit affected versions
5 explicit affected versions
30 explicit affected versions
13 explicit affected versions
13 explicit affected versions
7 explicit affected versions
5 explicit affected versions
10 explicit affected versions
12 explicit affected versions
39 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
79 explicit affected versions
13 explicit affected versions
26 explicit affected versions
45 explicit affected versions
37 explicit affected versions
35 explicit affected versions
14 explicit affected versions
38 explicit affected versions
9 explicit affected versions
11 explicit affected versions
80 explicit affected versions
24 explicit affected versions
8 explicit affected versions
92 explicit affected versions
7 explicit affected versions
4 explicit affected versions
81 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
91 explicit affected versions
43 explicit affected versions
10 explicit affected versions
8 explicit affected versions
29 explicit affected versions
14 explicit affected versions
4 explicit affected versions
78 explicit affected versions
11 explicit affected versions
1 explicit affected versions
3 explicit affected versions
80 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix type confusion via race condition when using ipc_msg_send_request req->handle is allocated using ksmbd_acquire_id(&ipc_ida), based on ida_alloc. req->handle from ksmbd_ipc_login_request and FSCTL_PIPE_TRANSCEIVE ioctl can be same and it could lead to type confusion between messages, resulting in access to unexpected parts of memory after an incorrect delivery. ksmbd check type of ipc response but missing add continue to check next ipc reponse.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/e2ff19f0b7a30e03516e6eb73b948e27a55bc9d2
- https://git.kernel.org/stable/c/1e8833c03a38e1d5d5df6484e3f670a2fd38fb76
- https://git.kernel.org/stable/c/3cb2b2e41541fe6f9cc55ca22d4c0bd260498aea
- https://git.kernel.org/stable/c/6321bbda4244b93802d61cfe0887883aae322f4b
- https://git.kernel.org/stable/c/76861630b29e51373e73e7b00ad0d467b6941162
- https://git.kernel.org/stable/c/e2ff19f0b7a30e03516e6eb73b948e27a55bc9d2
- https://ubuntu.com/security/CVE-2025-21947
- https://ubuntu.com/security/notices/USN-7605-1
- https://ubuntu.com/security/notices/USN-7605-2
- https://ubuntu.com/security/notices/USN-7606-1
- https://ubuntu.com/security/notices/USN-7628-1
- https://ubuntu.com/security/notices/USN-7764-1
- https://ubuntu.com/security/notices/USN-7764-2
- https://ubuntu.com/security/notices/USN-7765-1
- https://ubuntu.com/security/notices/USN-7766-1
- https://ubuntu.com/security/notices/USN-7767-1
- https://ubuntu.com/security/notices/USN-7767-2
- https://ubuntu.com/security/notices/USN-7779-1
- https://ubuntu.com/security/notices/USN-7790-1
- https://ubuntu.com/security/notices/USN-7800-1
- https://ubuntu.com/security/notices/USN-7801-1
- https://ubuntu.com/security/notices/USN-7801-2
- https://ubuntu.com/security/notices/USN-7801-3
- https://ubuntu.com/security/notices/USN-7802-1
- https://ubuntu.com/security/notices/USN-7809-1
- https://www.cve.org/CVERecord?id=CVE-2025-21947