scsi: bfa: Double-free fix

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: scsi: bfa: Double-free fix When the bfad_im_probe() function fails during initialization, the memory pointed to by bfad->im is freed without setting bfad->im to NULL. Subsequently, during driver uninstallation, when the state machine enters the bfad_sm_stopping state and calls the bfad_im_probe_undo() function, it attempts to free the memory pointed to by bfad->im again, thereby triggering a double-free vulnerability. Set bfad->im to NULL if probing fails.

References

• https://git.kernel.org/stable/c/684c92bb08a25ed3c0356bc7eb532ed5b19588dd
• https://git.kernel.org/stable/c/9337c2affbaebe00b75fdf84ea0e2fcf93c140af
• https://git.kernel.org/stable/c/ba024d92564580bb90ec367248ace8efe16ce815
• https://git.kernel.org/stable/c/8e03dd9fadf76db5b9799583074a1a2a54f787f1
• https://git.kernel.org/stable/c/39cfe2c83146aad956318f866d0ee471b7a61fa5
• https://git.kernel.org/stable/c/13f613228cf3c96a038424cd97aa4d6aadc66294
• https://git.kernel.org/stable/c/8456f862cb95bcc3a831e1ba87c0c17068be0f3f
• https://git.kernel.org/stable/c/50d9bd48321038bd6e15af5a454bbcd180cf6f80
• https://git.kernel.org/stable/c/add4c4850363d7c1b72e8fce9ccb21fdd2cf5dc9