In the Linux kernel, the following vulnerability has been resolved:

nvme: move stopping keep-alive into nvme_uninit_ctrl()

Commit 4733b65d82bd ("nvme: start keep-alive after admin queue setup")
moves starting keep-alive from nvme_start_ctrl() into
nvme_init_ctrl_finish(), but don't move stopping keep-alive into
nvme_uninit_ctrl(), so keep-alive work can be started and keep pending
after failing to start controller, finally use-after-free is triggered if
nvme host driver is unloaded.

This patch fixes kernel panic when running nvme/004 in case that connection
failure is triggered, by moving stopping keep-alive into nvme_uninit_ctrl().

This way is reasonable because keep-alive is now started in
nvme_init_ctrl_finish().

kernel.org https://git.kernel.org/stable/c/4101af98ab573554c4225e328d506fec2a74bc54 [No types assigned]

kernel.org https://git.kernel.org/stable/c/a54a93d0e3599b05856971734e15418ac551a14c [No types assigned]