Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-7922-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7922-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update...

Unity Linux 20.1050e Security Update: kernel (UTSA-2025-991214)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-991214 advisory. In the Linux kernel, the following vulnerability has been resolved: iio: adc: at91adc: fix possible memory leak in at91adcallocatetrigger If iiotriggerregister retur...

USN-7922-1: Linux kernel 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: - Cryptographic API; - ACPI drivers; - InfiniBand drivers; - Media drivers; - Network drivers; - Pin controllers...

USN-7922-1 linux, linux-aws, linux-aws-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-xilinx-zynqmp 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: - Cryptographic API; - ACPI drivers; - InfiniBand drivers; - Media drivers; - Network drivers; - Pin controllers...

CVE-2022-50630

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: fix UAF in hugetlbhandleuserfault The vmalock and hugetlbfaultmutex are dropped before handling userfault and reacquire them again after handleuserfault, but reacquire the vmalock could lead to UAF1,2 due to the...

CVE-2022-50642

In the Linux kernel, the following vulnerability has been resolved: platform/chrome: crosectypec: zero out stale pointers crostypecgetswitchhandles allocates four pointers when obtaining type-c switch handles. These pointers are all freed if failing to obtain any of them; therefore, pointers in...

EUVD-2023-60152

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Don't leak a resource on swapout move error If moving the bo to system for swapout failed, we were leaking a resource. Fix...

CVE-2025-40340

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix oops in xegemfault when running corehotunplug test. I saw an oops in xegemfault when running the xe-fast-feedback testlist against the realtime kernel without debug options enabled. The panic happens after corehotunpl...

CVE-2023-53844

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Don't leak a resource on swapout move error If moving the bo to system for swapout failed, we were leaking a resource. Fix...

CVE-2022-50661

In the Linux kernel, the following vulnerability has been resolved: seccomp: Move copyseccomp to no failure path. Our syzbot instance reported memory leaks in doseccomp 0, similar to the report 1. It shows that we miss freeing struct seccompfilter and some objects included in it. We can reproduce...

CVE-2022-50657

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: add missing memcpy in kasaninit Hi Atish, It seems that the panic is due to the missing memcpy during kasaninit. Could you please check whether this patch is helpful? When doing kasanpopulate, the new allocated...

UBUNTU-CVE-2025-40340

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix oops in xegemfault when running corehotunplug test. I saw an oops in xegemfault when running the xe-fast-feedback testlist against the realtime kernel without debug options enabled. The panic happens after corehotunpl...

kernel: iommu/vt-d: Disallow dirty tracking if incoherent page walk

A flaw was found in the Intel VT-d IOMMU support in the Linux kernel. When an IOMMU is configured to perform dirty-page tracking, but the page-walk memory region is incoherent between the IOMMU and CPU, the hardware may attempt to atomically update the bits in a paging-structure entry that is not...

CVE-2025-40340

CVE-2025-40340 is addressed in Root OS packaging (rootio-linux). Connected OSV entries show fixes for Root:Debian:13 and patches for Root:Ubuntu:22.04 and Root:Ubuntu:24.04, among others, with multiple fixed versions available. This indicates the vulnerability is not in the Linux kernel itself in...

CVE-2022-50657 riscv: mm: add missing memcpy in kasan_init

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: add missing memcpy in kasaninit Hi Atish, It seems that the panic is due to the missing memcpy during kasaninit. Could you please check whether this patch is helpful? When doing kasanpopulate, the new allocated...

SUSE CVE-2022-50630

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: fix UAF in hugetlbhandleuserfault The vmalock and hugetlbfaultmutex are dropped before handling userfault and reacquire them again after handleuserfault, but reacquire the vmalock could lead to UAF1,2 due to the...

SUSE CVE-2023-53744

In the Linux kernel, the following vulnerability has been resolved: soc: ti: pm33xx: Fix refcount leak in am33xxpmprobe wkupm3ipcget takes refcount, which should be freed by wkupm3ipcput. Add missing refcount release in the error paths...

CVE-2023-53801

In the Linux kernel, the following vulnerability has been resolved: iommu/sprd: Release dma buffer to avoid memory leak When attaching to a domain, the driver would alloc a DMA buffer which is used to store address mapping table, and it need to be released when the IOMMU domain is freed...

CVE-2023-53800

In the Linux kernel, the following vulnerability has been resolved: ubi: Fix use-after-free when volume resizing failed There is an use-after-free problem reported by KASAN: ================================================================== BUG: KASAN: use-after-free in ubiebacopytable+0x11f/0x1c...

CVE-2023-53789 iommu/amd: Improve page fault error reporting

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Improve page fault error reporting If IOMMU domain for device group is not setup properly then we may hit IOMMU page fault. Current page fault handler assumes that domain is always setup and it will hit NULL pointer...