CVE-2020-36385
HIGH
7.8
CVSS Score
Published: June 7, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 03:15 AM UTC
19 products affected across 3 vendorsLinux KernelH700S FirmwareH410S Firmware
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Severity
HIGH7.8
Exploit prediction
EPSS 1%
Description
An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 5.10
Affected range stops below 5.10, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f5449e74802c1112dea984aec8af7a33c4516af1
- https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2
- https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6
References (6)
Release NotesVendor Advisory
Source: [email protected]
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10Third Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20210720-0004/PatchThird Party Advisory
Source: [email protected]
https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2PatchThird Party Advisory
Source: [email protected]
https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6Third Party Advisory
Source: [email protected]
https://www.starwindsoftware.com/security/sw-20220802-0002/CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-416
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