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Change History

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

scsi: sg: Avoid sg device teardown race

sg_remove_sfp_usercontext() must not use sg_device_destroy() after calling
scsi_device_put().

sg_device_destroy() is accessing the parent scsi_device request_queue which
will already be set to NULL when the preceding call to scsi_device_put()
removed the last reference to the parent scsi_device.

The resulting NULL pointer exception will then crash the kernel.

kernel.org https://git.kernel.org/stable/c/27f58c04a8f438078583041468ec60597841284d [No types assigned]

kernel.org https://git.kernel.org/stable/c/46af9047523e2517712ae8e71d984286c626e022 [No types assigned]

kernel.org https://git.kernel.org/stable/c/b0d1ebcc1a9560e494ea9b3ee808540db26c5086 [No types assigned]