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.
- Експлоатация: няма данни за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: libceph: make free_choose_arg_map() resilient to partial allocation free_choose_arg_map() may dereference a NULL pointer if its caller fails after a partial allocation. For example, in decode_choose_args(), if allocation of arg_map->args fails, execution jumps to the fail label and free_choose_arg_map() is called. Since arg_map->size is updated to a non-zero value before memory allocation, free_choose_arg_map() will iterate over arg_map->args and dereference a NULL pointer. To prevent this potential NULL pointer dereference and make free_choose_arg_map() more resilient, add checks for pointers before iterating.
Засегнати продукти
- Linux Linux: 5cf9c4a9959b6273675310d14a834ef14fbca37c преди 9b3730dabcf3764bfe3ff07caf55e641a0b45234; 5cf9c4a9959b6273675310d14a834ef14fbca37c преди 851241d3f78a5505224dc21c03d8692f530256b4; 5cf9c4a9959b6273675310d14a834ef14fbca37c преди ec1850f663da64842614c86b20fe734be070c2ba; 5cf9c4a9959b6273675310d14a834ef14fbca37c преди 8081faaf089db5280c3be820948469f7c58ef8dd; 5cf9c4a9959b6273675310d14a834ef14fbca37c преди c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf; 5cf9c4a9959b6273675310d14a834ef14fbca37c преди f21c3fdb96833aac2f533506899fe38c19cf49d5; 5cf9c4a9959b6273675310d14a834ef14fbca37c преди e3fe30e57649c551757a02e1cad073c47e1e075e
- Linux Linux: 4.13; преди 4.13; 5.10.248 до 5.10.*; 5.15.198 до 5.15.*; 6.1.161 до 6.1.*; 6.6.121 до 6.6.*; 6.12.66 до 6.12.*; 6.18.6 до 6.18.*; 6.19 до *
Вид слабост
История
- 23 януари 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-22991
- https://nvd.nist.gov/vuln/detail/CVE-2026-22991
- https://git.kernel.org/stable/c/9b3730dabcf3764bfe3ff07caf55e641a0b45234
- https://git.kernel.org/stable/c/851241d3f78a5505224dc21c03d8692f530256b4
- https://git.kernel.org/stable/c/ec1850f663da64842614c86b20fe734be070c2ba
- https://git.kernel.org/stable/c/8081faaf089db5280c3be820948469f7c58ef8dd
- https://git.kernel.org/stable/c/c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf
- https://git.kernel.org/stable/c/f21c3fdb96833aac2f533506899fe38c19cf49d5
- https://git.kernel.org/stable/c/e3fe30e57649c551757a02e1cad073c47e1e075e