CVE-2026-17413

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vulnerability in the RTAS firmware-to-OS interface. An attacker with administrator-level root access to a logical partition can send a...

EUVD-2026-85888

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vulnerability in the RTAS firmware-to-OS interface. An attacker with administrator-level root access to a logical partition can send a...

CVE-2026-17413

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vulnerability in the RTAS firmware-to-OS interface. An attacker with administrator-level root access to a logical partition can send a...

CVE-2026-17413 This Power System update is being released to address

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vulnerability in the RTAS firmware-to-OS interface. An attacker with administrator-level root access to a logical partition can send a...

Security Bulletin: This Power System update is being released to address CVE-2026-17413

Summary Power Systems Firmware is affected by a vulnerability in the RTAS firmware-to-OS interface. An attacker with administrator-level root access to a logical partition can send a specially crafted request to partition firmware, causing the partition to crash and become unavailable. Other...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtasflash: Allow user copy to flash block cache objects With hardened usercopy enabled CONFIGHARDENEDUSERCOPY=y, using the /proc/powerpc/rtas/firmwareupdate interface to prepare a system firmware update results in a BUG: ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: Prevent Spectre v1 gadget construction in sysrtas. Smatch warns: arch/powerpc/kernel/rtas.c:1932 dosysrtas warning: potential Spectre issue with ‘args args’ r local limit The ‘nargs’ and ‘nret’ locals originate from...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: Fixed the handling of the RTAS MSRHV for the Cell. The recent changes in MSR handling when entering RTAS firmware caused crashes on IBM Cell machines. An example trace is as follows: The kernel attempted to execute ...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-007000)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007000 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/rtasflash: allow user copy to flash block cache objects With hardened usercopy enabled...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011232)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011232 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: avoid device tree lookups in rtasosterm rtasosterm is called during panic. Its...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013330)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013330 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/rtasflash: allow user copy to flash block cache objects With hardened usercopy enabled...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006714)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006714 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/rtasflash: allow user copy to flash block cache objects With hardened usercopy enabled...

The vulnerability of the enter_rtas() function in the arch/powerpc/kernel/rtas.c module, which is part of the PowerPC platform support for the Linux operating system, allows a hacker to trigger a service failure.

The vulnerability of the enterrtas function in the arch/powerpc/kernel/rtas.c module of the Linux operating system’s PowerPC kernel is related to an uncontrolled recursion. Exploiting this vulnerability could allow an attacker to cause a service failure...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005731)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005731 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: avoid scheduling in rtasosterm It's unsafe to use rtasbusydelay to handle a busy...

The vulnerability of the enter_rtas() function in the arch/powerpc/kernel/rtas_entry.S module of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the enterrtas function in the arch/powerpc/kernel/rtasentry.S module of the Linux operating system’s kernel is related to the improper disabling or release of resources. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001356)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001356 advisory. A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down usually due to Secure Boot guest system running on to...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001534)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001534 advisory. arch/powerpc/kvm/book3srtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004317)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004317 advisory. A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down usually due to Secure Boot guest system running on to...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003984)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003984 advisory. A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down usually due to Secure Boot guest system running on to...

CVE-2022-50870

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: avoid device tree lookups in rtasosterm rtasosterm is called during panic. Its behavior depends on a couple of conditions in the /rtas node of the device tree, the traversal of which entails locking and local IRQ...