CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: s390/qeth: validate user buffer length in SNMP and ARP query ioctls qeth_snmp_command() and qeth_l3_arp_query() allocate a buffer sized by a user-supplied length (udata_len) without checking a lower bound, then set udata_offset to a fixed non-zero value and pass both to a reply callback. The callback bounds-checks the copy with if ((udata_len - udata_offset) < len) Both fields are u32, so a udata_len smaller than udata_offset makes the subtraction wrap and the check pass, and the following memcpy() writes past the allocation. A udata_len of 0 also yields ZERO_SIZE_PTR from kzalloc(), which the existing NULL check does not catch. Reject buffers smaller than udata_offset before allocating, so the callback subtraction can no longer underflow.
Засегнати продукти
- Linux Linux: 4a71df50047f0db65ea09b1be155852e81a45eba преди 9d00eeb2d27f4cc817c5e408760226d43f811ec6; 4a71df50047f0db65ea09b1be155852e81a45eba преди 46443eaddebd84c51940857b11787229be169dec; 4a71df50047f0db65ea09b1be155852e81a45eba преди 91935843f9396a9e45253e2c0d4337ca1371754b; 4a71df50047f0db65ea09b1be155852e81a45eba преди cc423f4105fe145b33e1d7cad34245a798358f73; 4a71df50047f0db65ea09b1be155852e81a45eba преди 3083818e67bcd656965797fbac9a3d6c1d44f78a; 4a71df50047f0db65ea09b1be155852e81a45eba преди a3083647747942ea32faf14560d6397ff3068046; 4a71df50047f0db65ea09b1be155852e81a45eba преди 75fb3151513d7d9f77a8f9545418279b119c06b8; 4a71df50047f0db65ea09b1be155852e81a45eba преди d141f087b1af656f055d7c5793a3e87817ba0bbe
- Linux Linux: 2.6.26; преди 2.6.26; 5.10.266 до 5.10.*; 5.15.217 до 5.15.*; 6.1.184 до 6.1.*; 6.6.153 до 6.6.*; 6.12.105 до 6.12.*; 6.18.46 до 6.18.*; 7.1.10 до 7.1.*; от 7.2 нататък
История
- 26 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-80584
- https://nvd.nist.gov/vuln/detail/CVE-2026-80584
- https://git.kernel.org/stable/c/9d00eeb2d27f4cc817c5e408760226d43f811ec6
- https://git.kernel.org/stable/c/46443eaddebd84c51940857b11787229be169dec
- https://git.kernel.org/stable/c/91935843f9396a9e45253e2c0d4337ca1371754b
- https://git.kernel.org/stable/c/cc423f4105fe145b33e1d7cad34245a798358f73
- https://git.kernel.org/stable/c/3083818e67bcd656965797fbac9a3d6c1d44f78a
- https://git.kernel.org/stable/c/a3083647747942ea32faf14560d6397ff3068046
- https://git.kernel.org/stable/c/75fb3151513d7d9f77a8f9545418279b119c06b8
- https://git.kernel.org/stable/c/d141f087b1af656f055d7c5793a3e87817ba0bbe