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When calling 'iso_resource_free()' for uninitialized data, this function causes NULL pointer dereference due to its 'unit' member. This occurs when unplugging audio and music units on IEEE 1394 bus at failure of card registration. This commit fixes the bug. The bug exists since kernel v4.5. Fixes:324540c4e0('ALSA: fireface: postpone sound card registration') at v4.12 Fixes:8865a31e0f('ALSA: firewire-motu: postpone sound card registration') at v4.12 Fixes:b610386c8a('ALSA: firewire-tascam: deleyed registration of sound card') at v4.7 Fixes:86c8dd7f4d('ALSA: firewire-digi00x: delayed registration of sound card') at v4.7 Fixes:6c29230e2a('ALSA: oxfw: delayed registration of sound card') at v4.7 Fixes:7d3c1d5901('ALSA: fireworks: delayed registration of sound card') at v4.7 Fixes:04a2c73c97('ALSA: bebob: delayed registration of sound card') at v4.7 Fixes:b59fb1900b('ALSA: dice: postpone card registration') at v4.5 Cc: <stable@vger.kernel.org> # v4.5+ Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.