PRIOn knowledge basePRION:CVE-2022-39188Race condition
4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 Medium
AI Score
Confidence
Low
1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:H/Au:S/C:N/I:N/A:P
0.0004 Low
EPSS
Percentile
12.3%
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| debian_linux | eq | 10.0 | |
| debian_linux | eq | 10.0 | |
| debian_linux | eq | 11.0 | |
| linux_kernel | lt | 5.19 |
References
bugs.chromium.org/p/project-zero/issues/detail?id=2329
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b67fbebd4cf980aecbcc750e1462128bffe8ae15
github.com/torvalds/linux/commit/b67fbebd4cf980aecbcc750e1462128bffe8ae15
lists.debian.org/debian-lts-announce/2022/10/msg00000.html
lists.debian.org/debian-lts-announce/2022/11/msg00001.html
lore.kernel.org/stable/CAG48ez3SEqOPcPCYGHVZv4iqEApujD5VtM3Re-tCKLDEFdEdbg@mail.gmail.com/
www.debian.org/security/2022/dsa-5257
Related
4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 Medium
AI Score
Confidence
Low
1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:H/Au:S/C:N/I:N/A:P
0.0004 Low
EPSS
Percentile
12.3%