[PATCH 0/1][Groovy] CVE-2021-29266: vDPA UAF when reopening chardev

[Tim Gardner]

[SRU Justification]

An issue was discovered in the Linux kernel before 5.11.9. drivers/vhost/vdpa.c
has a use-after-free because v->config_ctx has an invalid value upon re-opening
a character device, aka CID-f6bbf0010ba0.

Introduced by commit 776f395004d829bbbf18c159ed9beb517a208c71 (v5.8)

[Test Plan]
none

[Where problems could occur]
Released in stable kernels:
linux-5.10.y
linux-5.11.y

[Other Info]
None