What’s Vulnerable › Vulnerabilities
CVE-2020-36385
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-06-07 · updated 2026-06-17
- Weakness: CWE-416
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 products
- Linux kernel: before 5.10 — fixed in 5.10
- NetApp H300E Firmware: all versions
- NetApp H300S Firmware: all versions
- NetApp H410C Firmware: all versions
- NetApp H410S Firmware: all versions
- NetApp H500E Firmware: all versions
- NetApp H500S Firmware: all versions
- NetApp H700E Firmware: all versions
- NetApp H700S Firmware: all versions
- Starwindsoftware Starwind San & Nas: v8r12
- Starwindsoftware Starwind Virtual San: v8-build14338
How to fix
Upgrade to a fixed version: Linux kernel 5.10. Check the vendor advisory for mitigations.
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://security.netapp.com/advisory/ntap-20210720-0004/
- https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2
- https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6
- https://www.starwindsoftware.com/security/sw-20220802-0002/
- 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://security.netapp.com/advisory/ntap-20210720-0004/
- https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2
- https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6
- https://www.starwindsoftware.com/security/sw-20220802-0002/
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