CVE-2020-36385

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.

References

https://www.starwindsoftware.com/security/sw-20220802-0002/

https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6

https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2

https://security.netapp.com/advisory/ntap-20210720-0004/

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f5449e74802c1112dea984aec8af7a33c4516af1

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3