Vulnerability DatabaseCVE-2022-39188
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CVE-2022-39188
Published:September 02, 2022
Updated:October 22, 2026
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.
Related Resources (17)
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
https://www.debian.org/security/2022/dsa-5257
https://github.com/torvalds/linux/commit/b67fbebd4cf980aecbcc750e1462128bffe8ae15
https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39188.json
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
https://nvd.nist.gov/vuln/detail/CVE-2022-39188
https://lore.kernel.org/stable/CAG48ez3SEqOPcPCYGHVZv4iqEApujD5VtM3Re-tCKLDEFdEdbg@mail.gmail.com/
https://bugs.chromium.org/p/project-zero/issues/detail?id=2329
https://cert-portal.siemens.com/productcert/html/ssa-769027.html
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b67fbebd4cf980aecbcc750e1462128bffe8ae15
https://security-tracker.debian.org/tracker/CVE-2022-39188
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-39188
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
https://access.redhat.com/security/cve/CVE-2022-39188
https://cert-portal.siemens.com/productcert/html/ssa-831302.html
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19
https://lore.kernel.org/stable/CAG48ez3SEqOPcPCYGHVZv4iqEApujD5VtM3Re-tCKLDEFdEdbg%40mail.gmail.com/
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CVSS v4
Base Score:
5.7
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.7
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-362
EPSS
Base Score:
0.24