CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: ksmbd: serialize QUERY_DIRECTORY requests per file smb2_query_dir() stores a pointer to its stack-allocated private data in the ksmbd_file readdir_data. Concurrent QUERY_DIRECTORY requests using the same file handle can overwrite this pointer while an iterate_dir() callback is still using it, resulting in a stack use-after-free. Add a per-file mutex and hold it while accessing the shared directory enumeration state. The lock covers scan restart, dot entry state, readdir_data setup and iteration, and response construction. This prevents another request from replacing readdir_data.private before the current request has finished using it and also serializes the shared file position.
Засегнати продукти
- Linux Linux: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 1426fd79102539bc0ab5c8fced047ad4313b9908; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 2a64dbf9c739ddf7a25a066507597bf89f8f73d2; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 64dac2d486ec1eb18dc00968b16a230b6b75ec24; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди a1d5d31cad593ea5e1b637f2f39c9ef6d09d1199; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди fd22b039a5a05bc1d6818e9dcd1001fb432a829d; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди be6d26bf27499977c746abc163659915082348d8
- Linux Linux: 5.15; преди 5.15; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.96 до 6.12.*; 6.18.39 до 6.18.*; 7.1.4 до 7.1.*; от 7.2 нататък
История
- 25 юли 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-64397
- https://nvd.nist.gov/vuln/detail/CVE-2026-64397
- https://git.kernel.org/stable/c/1426fd79102539bc0ab5c8fced047ad4313b9908
- https://git.kernel.org/stable/c/2a64dbf9c739ddf7a25a066507597bf89f8f73d2
- https://git.kernel.org/stable/c/64dac2d486ec1eb18dc00968b16a230b6b75ec24
- https://git.kernel.org/stable/c/a1d5d31cad593ea5e1b637f2f39c9ef6d09d1199
- https://git.kernel.org/stable/c/fd22b039a5a05bc1d6818e9dcd1001fb432a829d
- https://git.kernel.org/stable/c/be6d26bf27499977c746abc163659915082348d8