UBUNTU-CVE-2022-39188
An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition (unmap_mapping_range versus munmap), a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VM_PFNMAP VMAs.
02 / AFFECTED SOFTWARE
Affected packages
8 explicit affected versions
13 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
22 explicit affected versions
8 explicit affected versions
30 explicit affected versions
19 explicit affected versions
9 explicit affected versions
15 explicit affected versions
16 explicit affected versions
56 explicit affected versions
35 explicit affected versions
7 explicit affected versions
3 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
14 explicit affected versions
7 explicit affected versions
12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
61 explicit affected versions
20 explicit affected versions
69 explicit affected versions
12 explicit affected versions
58 explicit affected versions
10 explicit affected versions
37 explicit affected versions
69 explicit affected versions
1 explicit affected versions
5 explicit affected versions
26 explicit affected versions
13 explicit affected versions
29 explicit affected versions
13 explicit affected versions
19 explicit affected versions
18 explicit affected versions
61 explicit affected versions
33 explicit affected versions
21 explicit affected versions
10 explicit affected versions
11 explicit affected versions
12 explicit affected versions
7 explicit affected versions
59 explicit affected versions
9 explicit affected versions
3 explicit affected versions
16 explicit affected versions
89 explicit affected versions
58 explicit affected versions
26 explicit affected versions
19 explicit affected versions
10 explicit affected versions
1 explicit affected versions
27 explicit affected versions
38 explicit affected versions
12 explicit affected versions
9 explicit affected versions
1 explicit affected versions
5 explicit affected versions
50 explicit affected versions
1 explicit affected versions
49 explicit affected versions
13 explicit affected versions
15 explicit affected versions
11 explicit affected versions
10 explicit affected versions
12 explicit affected versions
45 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
5 explicit affected versions
37 explicit affected versions
38 explicit affected versions
9 explicit affected versions
9 explicit affected versions
9 explicit affected versions
17 explicit affected versions
49 explicit affected versions
25 explicit affected versions
4 explicit affected versions
35 explicit affected versions
14 explicit affected versions
48 explicit affected versions
43 explicit affected versions
15 explicit affected versions
49 explicit affected versions
4 explicit affected versions
38 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition (unmap_mapping_range versus munmap), a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VM_PFNMAP VMAs.
05 / REFERENCES
Further evidence
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2329
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b67fbebd4cf980aecbcc750e1462128bffe8ae15
- https://git.kernel.org/linus/b67fbebd4cf980aecbcc750e1462128bffe8ae15
- https://github.com/torvalds/linux/commit/b67fbebd4cf980aecbcc750e1462128bffe8ae15
- https://lore.kernel.org/stable/[email protected]/T/#u
- https://lore.kernel.org/stable/CAG48ez3SEqOPcPCYGHVZv4iqEApujD5VtM3Re-tCKLDEFdEdbg@mail.gmail.com/
- https://ubuntu.com/security/CVE-2022-39188
- https://ubuntu.com/security/notices/USN-5790-1
- https://ubuntu.com/security/notices/USN-5791-1
- https://ubuntu.com/security/notices/USN-5791-2
- https://ubuntu.com/security/notices/USN-5791-3
- https://ubuntu.com/security/notices/USN-5792-1
- https://ubuntu.com/security/notices/USN-5792-2
- https://ubuntu.com/security/notices/USN-5815-1
- https://ubuntu.com/security/notices/USN-5877-1
- https://ubuntu.com/security/notices/USN-6001-1
- https://ubuntu.com/security/notices/USN-6013-1
- https://ubuntu.com/security/notices/USN-6014-1
- https://www.cve.org/CVERecord?id=CVE-2022-39188