Описание
In the Linux kernel, the following vulnerability has been resolved:
dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature
Fix memory corruption due to incorrect parameter being passed to bio_init
A flaw was found in the Linux kernel's dm-flakey driver. An incorrect parameter is passed during block input/output (I/O) request initialization when using the optional corrupt_bio_byte testing feature. A local user with administrative privileges could trigger this flaw when configuring storage device tables, causing memory corruption and a Denial of Service (DoS) through a system crash.
Отчет
This vulnerability is rated as Moderate severity for Red Hat Enterprise Linux because exploitation requires elevated privileges (such as root or CAP_SYS_ADMIN) to configure device-mapper tables, restricting the attack vector to administrative users. The issue exists within dm-flakey, a non-default testing target utilized primarily for simulating storage hardware errors during diagnostic or filesystem testing. Because the affected corrupt_bio_byte parameter is an optional setting rarely deployed in standard production environments, the overall operational risk remains low.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Out of support scope | ||
| Red Hat Enterprise Linux 8 | kernel | Not affected | ||
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | ||
| Red Hat Enterprise Linux 10 | kernel | Fixed | RHSA-2025:7956 | 19.05.2025 |
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2025:7903 | 19.05.2025 |
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2025:7903 | 19.05.2025 |
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Дополнительная информация
Статус:
7 High
CVSS3
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature Fix memory corruption due to incorrect parameter being passed to bio_init
In the Linux kernel, the following vulnerability has been resolved: dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature Fix memory corruption due to incorrect parameter being passed to bio_init
dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature
In the Linux kernel, the following vulnerability has been resolved: d ...
In the Linux kernel, the following vulnerability has been resolved: dm-flakey: Fix memory corruption in optional corrupt_bio_byte feature Fix memory corruption due to incorrect parameter being passed to bio_init
7 High
CVSS3