CVE-2020-29369
HIGH
7
CVSS Score
Published: November 28, 2020 at 06:20 AM UTC
Updated: June 17, 2026 at 03:11 AM UTC
5 products affected across 2 vendorsLinux KernelSolidfireHci Management Node
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Severity
HIGH7
Exploit prediction
EPSS 0.5%
Description
An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
4.20 ≤ v < 5.4.545.5 ≤ v < 5.7.11
Affected range stops below 5.4.54, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.7.11, so it looks safe — our inference, not a vendor statement
All versions
All versions
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://www.openwall.com/lists/oss-security/2021/02/10/6
- http://www.openwall.com/lists/oss-security/2021/02/19/8
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2056
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=246c320a8cfe0b11d81a4af38fa9985ef0cc9a4c
References (6)
Mailing Listx_refsource_MLISTPatchThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2021/02/10/6Mailing Listx_refsource_MLISTPatchThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2021/02/19/8x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugs.chromium.org/p/project-zero/issues/detail?id=2056x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=246c320a8cfe0b11d81a4af38fa9985ef0cc9a4cx_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20210115-0001/CVSS
- Attack Vector
- LOCAL
- Complexity
- HIGH
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-362
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