UBUNTU-CVE-2024-35905
In the Linux kernel, the following vulnerability has been resolved: bpf: Protect against int overflow for stack access size This patch re-introduces protection against the size of access to stack memory being negative; the access size can appear negative as a result of overflowing its signed int representation. This should not actually happen, as there are other protections along the way, but we should protect against it anyway. One code path was missing such protections (fixed in the previous patch in the series), causing out-of-bounds array accesses in check_stack_range_initialized(). This patch causes the verification of a program with such a non-sensical access size to fail. This check used to exist in a more indirect way, but was inadvertendly removed in a833a17aeac7.
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
35 explicit affected versions
12 explicit affected versions
19 explicit affected versions
6 explicit affected versions
54 explicit affected versions
6 explicit affected versions
40 explicit affected versions
51 explicit affected versions
40 explicit affected versions
10 explicit affected versions
5 explicit affected versions
47 explicit affected versions
7 explicit affected versions
46 explicit affected versions
1 explicit affected versions
13 explicit affected versions
2 explicit affected versions
35 explicit affected versions
7 explicit affected versions
18 explicit affected versions
9 explicit affected versions
34 explicit affected versions
6 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
9 explicit affected versions
21 explicit affected versions
16 explicit affected versions
10 explicit affected versions
7 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
2 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
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
8 explicit affected versions
8 explicit affected versions
13 explicit affected versions
7 explicit affected versions
16 explicit affected versions
51 explicit affected versions
8 explicit affected versions
40 explicit affected versions
3 explicit affected versions
51 explicit affected versions
5 explicit affected versions
12 explicit affected versions
37 explicit affected versions
27 explicit affected versions
23 explicit affected versions
1 explicit affected versions
8 explicit affected versions
12 explicit affected versions
5 explicit affected versions
2 explicit affected versions
8 explicit affected versions
10 explicit affected versions
4 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
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
8 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
46 explicit affected versions
13 explicit affected versions
43 explicit affected versions
10 explicit affected versions
8 explicit affected versions
3 explicit affected versions
14 explicit affected versions
4 explicit affected versions
11 explicit affected versions
1 explicit affected versions
2 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: bpf: Protect against int overflow for stack access size This patch re-introduces protection against the size of access to stack memory being negative; the access size can appear negative as a result of overflowing its signed int representation. This should not actually happen, as there are other protections along the way, but we should protect against it anyway. One code path was missing such protections (fixed in the previous patch in the series), causing out-of-bounds array accesses in check_stack_range_initialized(). This patch causes the verification of a program with such a non-sensical access size to fail. This check used to exist in a more indirect way, but was inadvertendly removed in a833a17aeac7.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/ecc6a2101840177e57c925c102d2d29f260d37c8
- https://git.kernel.org/stable/c/203a68151e8eeb331d4a64ab78303f3a15faf103
- https://git.kernel.org/stable/c/37dc1718dc0c4392dbfcb9adec22a776e745dd69
- https://git.kernel.org/stable/c/3f0784b2f1eb9147973d8c43ba085c5fdf44ff69
- https://git.kernel.org/stable/c/98cdac206b112bec63852e94802791e316acc2c1
- https://git.kernel.org/stable/c/9970e059af471478455f9534e8c3db82f8c5496d
- https://git.kernel.org/stable/c/ecc6a2101840177e57c925c102d2d29f260d37c8
- https://ubuntu.com/security/CVE-2024-35905
- https://ubuntu.com/security/notices/USN-6893-1
- https://ubuntu.com/security/notices/USN-6893-2
- https://ubuntu.com/security/notices/USN-6893-3
- 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-6918-1
- 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-2024-35905