diff options
| author | Joshua Crofts <joshua.crofts1@gmail.com> | 2026-07-30 13:58:11 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-08-14 10:48:13 +0900 |
| commit | 0f6bffb5008f0cba9cad5ded2caccc64466a6e54 (patch) | |
| tree | dc43c8e22d71f453dfd5ab34c86fa4d7defc61c8 /include/linux/debugobjects.h | |
| parent | 5b1da38592efdc1a263d4c0353298cba19e9d6fc (diff) | |
usb: gadget: midi2: remove default configfs groups on teardown
f_midi2_alloc_inst() creates default configfs child groups for the
default endpoint and default block using configfs_add_default_group(),
setting their internal refcount to 1.
However, during function teardown in f_midi2_free_inst() or EP cleanup
in f_midi2_ep_opts_release(), configfs_remove_default_groups() is
never called, therefore never dropping the refcount and leaking struct
f_midi2_ep_opts and f_midi2_block_opts.
Add the missing configfs_remove_default_groups() in the afformentioned
functions to free the structs properly.
Fixes: 8b645922b223 ("usb: gadget: Add support for USB MIDI 2.0 function driver")
Cc: stable@vger.kernel.org
Reported-by: syzbot+eaa106d192c9daf37f95@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=eaa106d192c9daf37f95
Tested-by: syzbot+eaa106d192c9daf37f95@syzkaller.appspotmail.com
Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
Link: https://patch.msgid.link/20260730135811.1498-1-joshua.crofts1@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/debugobjects.h')
0 files changed, 0 insertions, 0 deletions