In the Linux kernel, the following vulnerability has been resolved: scsi: target: pscsi: Fix bio_put() for error case As of commit 066ff571011d ("block: turn bio_kmalloc into a simple kmalloc wrapper"), a bio allocated by bio_kmalloc() must be freed by bio_uninit() and kfree(). That is not done properly for the error case, hitting WARN and NULL pointer dereference in bio_free().
https://git.kernel.org/stable/c/f49b20fd0134da84a6bd8108f9e73c077b7d6231
https://git.kernel.org/stable/c/de959094eb2197636f7c803af0943cb9d3b35804
https://git.kernel.org/stable/c/4ebc079f0c7dcda1270843ab0f38ab4edb8f7921
https://git.kernel.org/stable/c/1cfe9489fb563e9a0c9cdc5ca68257a44428c2ec