Description
In the Linux kernel, the following vulnerability has been resolved: 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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
8b645922b22303cec4628dbbbf6c8553d1cdec87 to < 79dbedf40ad930f83839e564394dc5d1a54938c6affected8b645922b22303cec4628dbbbf6c8553d1cdec87 to < 4beda67ee72e0c8df5b49951dd8b96f6adb25e02affected8b645922b22303cec4628dbbbf6c8553d1cdec87 to < a15c2acd3083461f91725760e59dff88b33c28f6affected8b645922b22303cec4628dbbbf6c8553d1cdec87 to < 9ea5dfb2bfef4f8a7e704d1921d8a790cb7fb700affected8b645922b22303cec4628dbbbf6c8553d1cdec87 to < 0f6bffb5008f0cba9cad5ded2caccc64466a6e54affected
Linux Linux
Default version status: affected
6.6affected0 to < 6.6unaffected6.6.157 to ≤ 6.6.*unaffected6.12.109 to ≤ 6.12.*unaffected6.18.50 to ≤ 6.18.*unaffected7.2.4 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/79dbedf40ad930f83839e564394dc5d1a54938c6 ↗
- https://git.kernel.org/stable/c/4beda67ee72e0c8df5b49951dd8b96f6adb25e02 ↗
- https://git.kernel.org/stable/c/a15c2acd3083461f91725760e59dff88b33c28f6 ↗
- https://git.kernel.org/stable/c/9ea5dfb2bfef4f8a7e704d1921d8a790cb7fb700 ↗
- https://git.kernel.org/stable/c/0f6bffb5008f0cba9cad5ded2caccc64466a6e54 ↗