OESA-2026-1950 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map use-after-free when handling missing device in readonechunk Store the error code before freeing the extentmap. Though it's reference counte...

USN-8188-1: Linux kernel (HWE) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Cryptographic API; - Drivers core; - Bluetooth drivers; - DMA engine...

USN-8188-1 linux-hwe-5.15 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Cryptographic API; - Drivers core; - Bluetooth drivers; - DMA engine...

USN-8187-1: Linux kernel (NVIDIA) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

USN-8187-1 linux-nvidia-tegra, linux-nvidia-tegra-igx vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

USN-8186-1 linux-intel-iot-realtime, linux-realtime vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

USN-8180-2: Linux kernel (FIPS) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

USN-8180-2 linux-fips, linux-gcp-fips vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

USN-8179-2 linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

USN-8184-1: Linux kernel (Real-time) vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

USN-8177-1 linux, linux-realtime vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007429)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007429 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: don't abort filesystem when attempting to snapshot deleted subvolume If the source file...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007613)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007613 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix assertion when building free space tree When building the free space tree with the blo...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007365)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007365 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: handle chunk tree lookup error in btrfsrelocatesyschunks The unhandled case in...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007607)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007607 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount During the...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007514)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007514 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix qgroup reserve leaks in cowfilerange In the buffered write path, the dirty page owns t...

Unity Linux 20.1050e / 20.1060e Security Update: kernel (UTSA-2026-007498)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007498 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix race between quota enable and quota rescan ioctl When enabling quotas, at...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007271)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007271 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix hang during unmount when stopping a space reclaim worker Often when running generic/5...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007432)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007432 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: don't drop extentmap for free space inode on write error While running the CI for an...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007415)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007415 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: send: handle path ref underflow in header iterateinoderef Change BUGON to proper error...