Messages in this thread | | | Subject | Re: [PATCH v2] xen/blkfront: avoid NULL blkfront_info dereference on device removal | From | Vasilis Liaskovitis <> | Date | Mon, 15 Oct 2018 16:25:56 +0200 |
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On Mon, 2018-10-15 at 16:02 +0200, Roger Pau Monné wrote: > > > This results in a NULL pointer BUG when blkfront_remove and > > blkif_free > > try to access the failing device's NULL struct blkfront_info. > > > > > I guess this is a candidate for backporting? >
yes, I think so. At least for kernels >=4.5, which could face this issue due to commit c31ecf6c12 (this frees the struct blkinfo in the failing path of talk_to_blkback).
thanks,
- Vasilis
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