diff options
| author | Dongliang Mu <[email protected]> | 2022-01-22 15:44:59 +0800 |
|---|---|---|
| committer | Hans Verkuil <[email protected]> | 2022-02-22 09:41:11 +0100 |
| commit | c08eadca1bdfa099e20a32f8fa4b52b2f672236d (patch) | |
| tree | f4aae9938eea814aa9b98f8733ae75499a0c30cb /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | dca4f5fdbcd7dddcd2169be2c3bf3057d51b100e (diff) | |
media: em28xx: initialize refcount before kref_get
The commit 47677e51e2a4("[media] em28xx: Only deallocate struct
em28xx after finishing all extensions") adds kref_get to many init
functions (e.g., em28xx_audio_init). However, kref_init is called too
late in em28xx_usb_probe, since em28xx_init_dev before will invoke
those init functions and call kref_get function. Then refcount bug
occurs in my local syzkaller instance.
Fix it by moving kref_init before em28xx_init_dev. This issue occurs
not only in dev but also dev->dev_next.
Fixes: 47677e51e2a4 ("[media] em28xx: Only deallocate struct em28xx after finishing all extensions")
Reported-by: syzkaller <[email protected]>
Signed-off-by: Dongliang Mu <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions