4.12 NULL pointer dereference in kmem_cache_free on USB storage removal

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Hello,

This problem was reported in the linux-kernel list, here:
https://lkml.org/lkml/2017/7/13/710, and it is said that commit
8e6882545d8c ("scsi: Avoid
that scsi_exit_rq() triggers a use-after-free") fixes it. It indeed
fixes it as the problem does not exist on 4.13-rc1 (which includes the
commit) and on 4.12.x if the patch is applied. However, none of the 4.12
releases since that discussion includes the patch, so the problem is
still there. Can that be included in the next stable release?

Thanks,
Yagmur Oymak





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