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| author | Jan Beulich <jbeulich@suse.com> | 2021-03-26 16:28:57 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-30 14:45:01 +0200 |
| commit | 47b6b2742ee60334c40d75bfaab49028688f1510 (patch) | |
| tree | dec4e0add59f1421a1fbc68d57d1f8d759b0d7bc /fs/hostfs/hostfs_kern.c | |
| parent | 915c5a9ea9e8910d18698d52b19d7ed872e8b2e4 (diff) | |
| download | linux-stable-47b6b2742ee60334c40d75bfaab49028688f1510.tar.gz linux-stable-47b6b2742ee60334c40d75bfaab49028688f1510.tar.bz2 linux-stable-47b6b2742ee60334c40d75bfaab49028688f1510.zip | |
xen-blkback: don't leak persistent grants from xen_blkbk_map()
commit a846738f8c3788d846ed1f587270d2f2e3d32432 upstream.
The fix for XSA-365 zapped too many of the ->persistent_gnt[] entries.
Ones successfully obtained should not be overwritten, but instead left
for xen_blkbk_unmap_prepare() to pick up and put.
This is XSA-371.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: stable@vger.kernel.org
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Wei Liu <wl@xen.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/hostfs/hostfs_kern.c')
0 files changed, 0 insertions, 0 deletions