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| author | Logan Gunthorpe <logang@deltatee.com> | 2019-07-31 17:35:31 -0600 |
|---|---|---|
| committer | Sagi Grimberg <sagi@grimberg.me> | 2019-07-31 17:57:06 -0700 |
| commit | 3aed86731ee2b23e4dc4d2c6d943d33992cd551b (patch) | |
| tree | ec1c8fdaaae875427d39e0734626161419167293 /security | |
| parent | fab7772bfbcfe8fb8e3e352a6a8fcaf044cded17 (diff) | |
| download | linux-3aed86731ee2b23e4dc4d2c6d943d33992cd551b.tar.gz linux-3aed86731ee2b23e4dc4d2c6d943d33992cd551b.tar.bz2 linux-3aed86731ee2b23e4dc4d2c6d943d33992cd551b.zip | |
nvmet: Fix use-after-free bug when a port is removed
When a port is removed through configfs, any connected controllers
are still active and can still send commands. This causes a
use-after-free bug which is detected by KASAN for any admin command
that dereferences req->port (like in nvmet_execute_identify_ctrl).
To fix this, disconnect all active controllers when a subsystem is
removed from a port. This ensures there are no active controllers
when the port is eventually removed.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by : Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions