diff options
| author | Jan Beulich <jbeulich@suse.com> | 2021-02-25 16:35:15 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-07 11:27:46 +0100 |
| commit | 2509093effe088ec30e09d064a583574626e06d1 (patch) | |
| tree | 44f021f7676018e0bda290b81521431d809e823c /mm | |
| parent | 893a88ea0ee11a1f5e2279cad3c0ed7736187288 (diff) | |
xen-netback: respect gnttab_map_refs()'s return value
commit 2991397d23ec597405b116d96de3813420bdcbc3 upstream.
Commit 3194a1746e8a ("xen-netback: don't "handle" error by BUG()")
dropped respective a BUG_ON() without noticing that with this the
variable's value wouldn't be consumed anymore. With gnttab_set_map_op()
setting all status fields to a non-zero value, in case of an error no
slot should have a status of GNTST_okay (zero).
This is part of XSA-367.
Cc: <stable@vger.kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/d933f495-619a-0086-5fb4-1ec3cf81a8fc@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions