diff options
| author | Jeff Moyer <jmoyer@redhat.com> | 2018-12-11 18:37:49 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-12-11 19:45:50 +0100 |
| commit | a538e3ff9dabcdf6c3f477a373c629213d1c3066 (patch) | |
| tree | 8f94a879f2bd8b990032bead3a410b1bf000558b /block/blk-zoned.c | |
| parent | block/bio: Do not zero user pages (diff) | |
| download | linux-a538e3ff9dabcdf6c3f477a373c629213d1c3066.tar.xz linux-a538e3ff9dabcdf6c3f477a373c629213d1c3066.zip | |
aio: fix spectre gadget in lookup_ioctx
Matthew pointed out that the ioctx_table is susceptible to spectre v1,
because the index can be controlled by an attacker. The below patch
should mitigate the attack for all of the aio system calls.
Cc: stable@vger.kernel.org
Reported-by: Matthew Wilcox <willy@infradead.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-zoned.c')
0 files changed, 0 insertions, 0 deletions