CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: fs/statmount: fix slab out-of-bounds write in statmount_mnt_idmap statmount_mnt_idmap() writes one mapping with seq_printf() and then manually advances seq->count to include the NUL separator. If seq_printf() overflows, seq_set_overflow() sets seq->count to seq->size. The manual seq->count++ changes this to seq->size + 1. seq_has_overflowed() then no longer detects the overflow. The corrupted count returns to statmount_string(), which later executes: seq->buf[seq->count++] = '\0'; This causes a 1-byte NULL out-of-bounds write on the dynamically allocated seq buffer. Fix this by checking for overflow immediately after seq_printf().
Засегнати продукти
- Linux Linux: 37c4a9590e1efcae7749682239fc22a330d2d325 преди e37ea2c6f17f273813ea4e8e94c102591d598ce1; 37c4a9590e1efcae7749682239fc22a330d2d325 преди 93614949dc86f068e3c32c32cf1ee2a2323177a7; 37c4a9590e1efcae7749682239fc22a330d2d325 преди a3bf0f28d4ba16e1f35f8c983bb04426b87e2a78
- Linux Linux: 6.15; преди 6.15; 6.18.34 до 6.18.*; 7.0.11 до 7.0.*; 7.1 до *
История
- 19 юли 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-64074
- https://nvd.nist.gov/vuln/detail/CVE-2026-64074
- https://git.kernel.org/stable/c/e37ea2c6f17f273813ea4e8e94c102591d598ce1
- https://git.kernel.org/stable/c/93614949dc86f068e3c32c32cf1ee2a2323177a7
- https://git.kernel.org/stable/c/a3bf0f28d4ba16e1f35f8c983bb04426b87e2a78