CVEvulnerability
CVE-2020-36387
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-06-07
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-416
Description
An issue was discovered in the Linux kernel before 5.8.2. fs/io_uring.c has a use-after-free related to io_async_task_func and ctx reference holding, aka CID-6d816e088c35.
Affected configurations
• linux linux kernel (>= 5.7 < 5.7.16)
• linux linux kernel (>= 5.8 < 5.8.2)
• netapp h300s firmware
• netapp h500s firmware
• netapp h700s firmware
• netapp h300e firmware
• netapp h500e firmware
• netapp h700e firmware
• netapp h410s firmware
• netapp h410c firmware
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2 Mailing List, Patch, Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d816e088c359866f9867057e04f244c608c42fe Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210727-0006/ Third Party Advisory
- https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-io_async_task_func Patch, Third Party Advisory
- https://syzkaller.appspot.com/bug?id=ce5f07d6ec3b5050b8f0728a3b389aa510f2591b Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2 Mailing List, Patch, Release Notes, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d816e088c359866f9867057e04f244c608c42fe Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210727-0006/ Third Party Advisory
- https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-io_async_task_func Patch, Third Party Advisory
- https://syzkaller.appspot.com/bug?id=ce5f07d6ec3b5050b8f0728a3b389aa510f2591b Patch, Third Party Advisory