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Debian Security Bug TrackerDEBIANCVE:CVE-2022-39188HistorySep 02, 2022 - 5:15 a.m.
CVE-2022-39188
2022-09-0205:15:07
Debian Security Bug Tracker
security-tracker.debian.org
104
linux kernel
race condition
device driver
stale tlb entries
vm_pfnmap vmas
CVSS3
4.7
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
EPSS
0
Percentile
14.2%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | linux | < 5.19.6-1 | linux_5.19.6-1_all.deb |
| Debian | 11 | all | linux | < 5.10.149-1 | linux_5.10.149-1_all.deb |
| Debian | 999 | all | linux | < 5.19.6-1 | linux_5.19.6-1_all.deb |
| Debian | 13 | all | linux | < 5.19.6-1 | linux_5.19.6-1_all.deb |
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CVSS3
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Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
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Availability Impact
HIGH
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EPSS
0
Percentile
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