diff options
| author | Alexander Usyskin <[email protected]> | 2023-07-31 14:58:36 +0300 |
|---|---|---|
| committer | Miquel Raynal <[email protected]> | 2023-08-04 09:01:31 +0200 |
| commit | e9714c22c1a8238a85d069b1517941fc723312f7 (patch) | |
| tree | 17c305b0aff03f1165e18af417029205bfaa8424 /tools/testing/selftests/bpf/prog_tests/autoload.c | |
| parent | d2236f6219fac62ee22d971e06a04148f4eb8cca (diff) | |
mtd: fix use-after-free in mtd release
I case of partition device_unregister() in mtd_device_release()
calls mtd_release() which frees mtd_info structure for partition.
All code after device_unregister in mtd_device_release thus
uses already freed memory.
Move part of code to mtd_release() and restict mtd->dev cleanup
to non-partion object.
For partition object such cleanup have no sense as partition
mtd_info is removed.
Cc: Miquel Raynal <[email protected]>
Cc: Zhang Xiaoxu <[email protected]>
Fixes: 19bfa9ebebb5 ("mtd: use refcount to prevent corruption")
Reviewed-by: Tomas Winkler <[email protected]>
Signed-off-by: Alexander Usyskin <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/[email protected]
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/autoload.c')
0 files changed, 0 insertions, 0 deletions