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Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_mass_storage: fix null pointer dereference in fsg_common_set_num_buffers() Previously fsg_num_buffers_validate() was removed as it was not necessary due to Kconfig setting the limits for n from 2 to 256 with default as 2. However, setting the page content in such a way that kstrtou8() reflects n value as either 0 or 1 bypasses these restrictions leading to a null pointer dereference if n is 0. Fix this by adding a check for n < 2 and returning -EINVAL if n is either 0 or 1 consistent with Kconfig logic.
Засегнати продукти
- Linux Linux: fe5a6c48fd954489f51aab151d5dad9254c76419 преди 38edd187a37db0d8e4bf84cc954dbdbe7bfa366f; fe5a6c48fd954489f51aab151d5dad9254c76419 преди e54820b9dc1d6d731ecc3e51462445dc952906a7; fe5a6c48fd954489f51aab151d5dad9254c76419 преди 5d56dbaeb81d5cd967cdee8ddcc70814b7139246; fe5a6c48fd954489f51aab151d5dad9254c76419 преди f4f0fe3ab47ed57ee4974fdd3e9dccb7839a7ebf; fe5a6c48fd954489f51aab151d5dad9254c76419 преди 51cc9af4f2d3f0b765266aced66b9b532b423b13; fe5a6c48fd954489f51aab151d5dad9254c76419 преди 9e8dd2a7a8ccbb756771ad985b0ad3387ed3c957; fe5a6c48fd954489f51aab151d5dad9254c76419 преди b9b5b5df5b8dd3c1572ed267200276a44cc67d8e; fe5a6c48fd954489f51aab151d5dad9254c76419 преди 2c0f5ca48674a5b5f9fa4a9c3325aa48053af0bc
- Linux Linux: 4.8; преди 4.8; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.112 до 6.12.*; 6.18.52 до 6.18.*; 7.2.5 до 7.2.*; от 7.3 нататък
История
- 16 септември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-90023
- https://nvd.nist.gov/vuln/detail/CVE-2026-90023
- https://git.kernel.org/stable/c/38edd187a37db0d8e4bf84cc954dbdbe7bfa366f
- https://git.kernel.org/stable/c/e54820b9dc1d6d731ecc3e51462445dc952906a7
- https://git.kernel.org/stable/c/5d56dbaeb81d5cd967cdee8ddcc70814b7139246
- https://git.kernel.org/stable/c/f4f0fe3ab47ed57ee4974fdd3e9dccb7839a7ebf
- https://git.kernel.org/stable/c/51cc9af4f2d3f0b765266aced66b9b532b423b13
- https://git.kernel.org/stable/c/9e8dd2a7a8ccbb756771ad985b0ad3387ed3c957
- https://git.kernel.org/stable/c/b9b5b5df5b8dd3c1572ed267200276a44cc67d8e
- https://git.kernel.org/stable/c/2c0f5ca48674a5b5f9fa4a9c3325aa48053af0bc