UBUNTU-CVE-2024-26950
In the Linux kernel, the following vulnerability has been resolved: wireguard: netlink: access device through ctx instead of peer The previous commit fixed a bug that led to a NULL peer->device being dereferenced. It's actually easier and faster performance-wise to instead get the device from ctx->wg. This semantically makes more sense too, since ctx->wg->peer_allowedips.seq is compared with ctx->allowedips_seq, basing them both in ctx. This also acts as a defence in depth provision against freed peers.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
31 explicit affected versions
45 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
19 explicit affected versions
6 explicit affected versions
54 explicit affected versions
4 explicit affected versions
40 explicit affected versions
51 explicit affected versions
40 explicit affected versions
10 explicit affected versions
3 explicit affected versions
47 explicit affected versions
7 explicit affected versions
46 explicit affected versions
13 explicit affected versions
35 explicit affected versions
7 explicit affected versions
14 explicit affected versions
18 explicit affected versions
9 explicit affected versions
34 explicit affected versions
5 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
7 explicit affected versions
21 explicit affected versions
16 explicit affected versions
10 explicit affected versions
5 explicit affected versions
7 explicit affected versions
12 explicit affected versions
38 explicit affected versions
12 explicit affected versions
14 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
10 explicit affected versions
37 explicit affected versions
13 explicit affected versions
10 explicit affected versions
27 explicit affected versions
26 explicit affected versions
13 explicit affected versions
6 explicit affected versions
29 explicit affected versions
13 explicit affected versions
51 explicit affected versions
49 explicit affected versions
11 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
11 explicit affected versions
12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
39 explicit affected versions
32 explicit affected versions
48 explicit affected versions
10 explicit affected versions
26 explicit affected versions
6 explicit affected versions
1 explicit affected versions
6 explicit affected versions
13 explicit affected versions
5 explicit affected versions
16 explicit affected versions
51 explicit affected versions
6 explicit affected versions
40 explicit affected versions
3 explicit affected versions
2 explicit affected versions
51 explicit affected versions
3 explicit affected versions
12 explicit affected versions
37 explicit affected versions
27 explicit affected versions
23 explicit affected versions
8 explicit affected versions
12 explicit affected versions
5 explicit affected versions
8 explicit affected versions
10 explicit affected versions
2 explicit affected versions
13 explicit affected versions
13 explicit affected versions
7 explicit affected versions
43 explicit affected versions
10 explicit affected versions
12 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
37 explicit affected versions
37 explicit affected versions
6 explicit affected versions
14 explicit affected versions
38 explicit affected versions
40 explicit affected versions
9 explicit affected versions
40 explicit affected versions
11 explicit affected versions
48 explicit affected versions
7 explicit affected versions
21 explicit affected versions
4 explicit affected versions
1 explicit affected versions
1 explicit affected versions
46 explicit affected versions
13 explicit affected versions
43 explicit affected versions
10 explicit affected versions
8 explicit affected versions
1 explicit affected versions
14 explicit affected versions
4 explicit affected versions
11 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: wireguard: netlink: access device through ctx instead of peer The previous commit fixed a bug that led to a NULL peer->device being dereferenced. It's actually easier and faster performance-wise to instead get the device from ctx->wg. This semantically makes more sense too, since ctx->wg->peer_allowedips.seq is compared with ctx->allowedips_seq, basing them both in ctx. This also acts as a defence in depth provision against freed peers.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f
- https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5
- https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068
- https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5
- https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f
- https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996
- https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37
- https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47
- https://ubuntu.com/security/CVE-2024-26950
- https://ubuntu.com/security/notices/USN-6816-1
- https://ubuntu.com/security/notices/USN-6817-1
- https://ubuntu.com/security/notices/USN-6817-2
- https://ubuntu.com/security/notices/USN-6817-3
- https://ubuntu.com/security/notices/USN-6878-1
- https://ubuntu.com/security/notices/USN-6898-1
- https://ubuntu.com/security/notices/USN-6898-2
- https://ubuntu.com/security/notices/USN-6898-3
- https://ubuntu.com/security/notices/USN-6898-4
- https://ubuntu.com/security/notices/USN-6917-1
- https://ubuntu.com/security/notices/USN-6919-1
- https://ubuntu.com/security/notices/USN-6927-1
- https://ubuntu.com/security/notices/USN-7019-1
- https://www.cve.org/CVERecord?id=CVE-2024-26950