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| author | Juergen Gross <jgross@suse.com> | 2017-05-18 18:28:48 +0300 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2017-06-13 23:09:41 +0300 |
| commit | 71df1d7ccad1c36f7321d6b3b48f2ea42681c363 (patch) | |
| tree | 3a7679bd60a7d022a8fc9cf72491bb9173abac4e /drivers/block/xen-blkback/blkback.c | |
| parent | 46464411307746e6297a034a9983a22c9dfc5a0c (diff) | |
| download | linux-71df1d7ccad1c36f7321d6b3b48f2ea42681c363.tar.xz | |
xen/blkback: don't free be structure too early
The be structure must not be freed when freeing the blkif structure
isn't done. Otherwise a use-after-free of be when unmapping the ring
used for communicating with the frontend will occur in case of a
late call of xenblk_disconnect() (e.g. due to an I/O still active
when trying to disconnect).
Signed-off-by: Juergen Gross <jgross@suse.com>
Tested-by: Steven Haigh <netwiz@crc.id.au>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/block/xen-blkback/blkback.c')
0 files changed, 0 insertions, 0 deletions