CVEvulnerability
CVE-2020-29368
7.0 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-11-28
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-362
Description
An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.
Affected configurations
• linux linux kernel (>= 4.5.5 < 4.9.228)
• linux linux kernel (>= 4.10 < 4.14.185)
• linux linux kernel (>= 4.15 < 4.19.129)
• linux linux kernel (>= 4.20 < 5.4.48)
• linux linux kernel (>= 5.5 < 5.7.5)
• netapp cloud backup
• netapp element software
• netapp hci management node
• netapp solidfire
• netapp hci bootstrap os
• netapp h410c firmware
Related
Weakness · CWE (1)
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness
References
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2045 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.5 Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c444eb564fb16645c172d550359cb3d75fe8a040 Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210108-0002/ Third Party Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2045 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.5 Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c444eb564fb16645c172d550359cb3d75fe8a040 Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210108-0002/ Third Party Advisory