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Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_midi: initialize work in f_midi_alloc() f_midi_alloc initializes free_ref to 1 and it can only be incremented when a sound card is registered via f_midi_register_card(). f_midi_register_card() is only called in f_midi_bind() which actually performs INIT_WORK. If f_midi_bind() is never run, work is not initialized and the if condition in f_midi_free becomes true, this results in a warning later in __flush_work as work->func = 0. Fix this by moving INIT_WORK from f_midi_bind() to f_midi_alloc().
Засегнати продукти
- Linux Linux: 8653d71ce3763aedcf3d2331f59beda3fecd79e4 преди c76e82b026a28c348e5d841922aa73db36eca1d3; 8653d71ce3763aedcf3d2331f59beda3fecd79e4 преди 13e9f5a91360952b9b5bbc2367fc29d4a4ff2824; 8653d71ce3763aedcf3d2331f59beda3fecd79e4 преди 3d8b11255e632170f32f1925bfcaf96331f36317; 8653d71ce3763aedcf3d2331f59beda3fecd79e4 преди 02ac76f27db23ef652358458c272d9d2d6f51167; 8653d71ce3763aedcf3d2331f59beda3fecd79e4 преди 858576de6b2f5166b08dae803f0fd0766dcb3002; 8653d71ce3763aedcf3d2331f59beda3fecd79e4 преди 7e07d3e4c389217d7d7171d80edf2e23ac70f1ea; 89019ab7a64fcdf98a2ba7799e5c6aff58d4a05d; 3635523e9b96213969693c320302d536774d8e9b; 5.4.291 преди 5.5; 5.10.235 преди 5.11
- Linux Linux: 5.12; преди 5.12; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.110 до 6.12.*; 6.18.51 до 6.18.*; 7.2.5 до 7.2.*; 7.3 до *
История
- 16 септември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-90021
- https://nvd.nist.gov/vuln/detail/CVE-2026-90021
- https://git.kernel.org/stable/c/c76e82b026a28c348e5d841922aa73db36eca1d3
- https://git.kernel.org/stable/c/13e9f5a91360952b9b5bbc2367fc29d4a4ff2824
- https://git.kernel.org/stable/c/3d8b11255e632170f32f1925bfcaf96331f36317
- https://git.kernel.org/stable/c/02ac76f27db23ef652358458c272d9d2d6f51167
- https://git.kernel.org/stable/c/858576de6b2f5166b08dae803f0fd0766dcb3002
- https://git.kernel.org/stable/c/7e07d3e4c389217d7d7171d80edf2e23ac70f1ea