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: dm-verity: disable recursive forward error correction There are two problems with the recursive correction: 1. It may cause denial-of-service. In fec_read_bufs, there is a loop that has 253 iterations. For each iteration, we may call verity_hash_for_block recursively. There is a limit of 4 nested recursions - that means that there may be at most 253^4 (4 billion) iterations. Red Hat QE team actually created an image that pushes dm-verity to this limit - and this image just makes the udev-worker process get stuck in the 'D' state. 2. It doesn't work. In fec_read_bufs we store data into the variable "fio->bufs", but fio bufs is shared between recursive invocations, if "verity_hash_for_block" invoked correction recursively, it would overwrite partially filled fio->bufs.
Засегнати продукти
- Linux Linux: a739ff3f543afbb4a041c16cd0182c8e8d366e70 преди 8b821ca892cfeeaf0bedc9fc72717294f67144d5; a739ff3f543afbb4a041c16cd0182c8e8d366e70 преди e227d2b229c7529bd98d348efc55262ccf24ab35; a739ff3f543afbb4a041c16cd0182c8e8d366e70 преди 897d9006e75f46f8bd7df78faa424327ae6a4bcf; a739ff3f543afbb4a041c16cd0182c8e8d366e70 преди 4220cb37406915c926c0e4a3dbab77cd9cceeb1e; a739ff3f543afbb4a041c16cd0182c8e8d366e70 преди 232948cf600fba69aff36b25d85ef91a73a35756; a739ff3f543afbb4a041c16cd0182c8e8d366e70 преди d9f3e47d3fae0c101d9094bc956ed24e7a0ee801
- Linux Linux: 4.5; преди 4.5; 5.15.209 до 5.15.*; 6.1.167 до 6.1.*; 6.6.130 до 6.6.*; 6.12.78 до 6.12.*; 6.18.6 до 6.18.*; от 6.19 нататък
Siemens: още 3 продукта, добавени от Siemens
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
Вид слабост
История
- 23 януари 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2025-71161
- https://nvd.nist.gov/vuln/detail/CVE-2025-71161
- https://git.kernel.org/stable/c/8b821ca892cfeeaf0bedc9fc72717294f67144d5
- https://git.kernel.org/stable/c/e227d2b229c7529bd98d348efc55262ccf24ab35
- https://git.kernel.org/stable/c/897d9006e75f46f8bd7df78faa424327ae6a4bcf
- https://git.kernel.org/stable/c/4220cb37406915c926c0e4a3dbab77cd9cceeb1e
- https://git.kernel.org/stable/c/232948cf600fba69aff36b25d85ef91a73a35756
- https://git.kernel.org/stable/c/d9f3e47d3fae0c101d9094bc956ed24e7a0ee801
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html