CVE-2026-45975: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: ublk: use READ_ONCE() to read struct ublksrv_ctrl_cmd struct ublksrv_ctrl_cmd is part of the io_uring_sqe, which may lie in userspace-mapped memory. It's racy to access its fields with normal loads, as userspace may write to them concurrently. Use READ_ONCE() to copy the ublksrv_ctrl_cmd from the io_uring_sqe to the stack. Use the local copy in place of the one in the io_uring_sqe.

Засегнати продукти

• Linux Linux: 87213b0d847cd300285b5545598e0548baeb5208 преди ce63eda3e6d36e2c253febee1c8421ecbd1a680e; 87213b0d847cd300285b5545598e0548baeb5208 преди ed9f54cc1e335096733aed03c2a46de3d58922ed
• Linux Linux: 6.19; преди 6.19; 6.19.4 до 6.19.*; от 7.0 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-45975
• https://nvd.nist.gov/vuln/detail/CVE-2026-45975
• https://git.kernel.org/stable/c/ce63eda3e6d36e2c253febee1c8421ecbd1a680e
• https://git.kernel.org/stable/c/ed9f54cc1e335096733aed03c2a46de3d58922ed