kernel: cifs: Fix lost destroy smbd connection when MR allocate failed

A memory leak flaw was found in the Linux kernel's CIFS SMB Direct implementation. When memory region MR allocation fails during SMB Direct connection setup, the smbddestroy function returns early without cleaning up the connection info structure, resulting in a memory leak...

UBUNTU-CVE-2021-47212

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Update error handler for UCTX and UMEM In the fast unload flow, the device state is set to internal error, which indicates that the driver started the destroy process. In this case, when a destroy command is being...

CVE-2023-52489

A race condition was found on a PFN in the Linux Kernel, which can fall into the device memory region with the system memory configuration. Normal zone start and end PFNs contain the device memory PFNs as well, and the compaction triggered will try on the device memory PFNs and end up in NOP. Thi...

CVE-2023-52561

In the Linux kernel, the following vulnerability has been resolved: arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved Adding a reserved memory region for the framebuffer memory the splash memory region set up by the bootloader. It fixes a kernel panic arm-smmu: Unhandled...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved Adding a reserved memory region for the framebuffer memory the splash memory region set up by the bootloader. It fixes a kernel panic arm-smmu: Unhandled...

CVE-2023-52561

CVE-2023-52561 : Linux kernel (arm64) vulnerability affecting DB845c boards with Qualcomm sdm845-db845c DTs. The issue stems from not reserving the cont splash memory region (framebuffer memory used by the bootloader), which could trigger a kernel panic (arm-smmu: Unhandled context fault) on v5.1...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from an unhandled context error in a specific memory region...

CVE-2021-46928

In the Linux kernel, the following vulnerability has been resolved: parisc: Clear stale IIR value on instruction access rights trap When a trap 7 Instruction access rights occurs, this means the CPU couldn't execute an instruction due to missing execute permissions on the memory region. In this...

CVE-2021-46928

In the Linux kernel, the following vulnerability has been resolved: parisc: Clear stale IIR value on instruction access rights trap When a trap 7 Instruction access rights occurs, this means the CPU couldn't execute an instruction due to missing execute permissions on the memory region. In this...

CVE-2021-46928

CVE-2021-46928 affects the Linux kernel on parisc: a trap7 (Instruction access rights) could leave the cr19 IIR register with a stale value. The patch fixes this by overwriting the stale IIR with the constant 0xbaadf00d when the trap occurs, preventing confusing dump values. The issue arises beca...

CVE-2021-46928

In the Linux kernel, the following vulnerability has been resolved: parisc: Clear stale IIR value on instruction access rights trap When a trap 7 Instruction access rights occurs, this means the CPU couldn't execute an instruction due to missing execute permissions on the memory region. In this...

CVE-2021-46928 parisc: Clear stale IIR value on instruction access rights trap

In the Linux kernel, the following vulnerability has been resolved: parisc: Clear stale IIR value on instruction access rights trap When a trap 7 Instruction access rights occurs, this means the CPU couldn't execute an instruction due to missing execute permissions on the memory region. In this...

CVE-2023-52455

A flaw was found in the Linux kernel. When the bootloader/firmware does not set up the framebuffers, the address and size are 0 in the "iommu-addresses" property. If the IOVA region is reserved with a 0 length, it corrupts the IOVA rbtree with an entry that has pfnhi pfnlo. If the intent is to us...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: iommu: Don't reserve 0-length IOVA region When the bootloader/firmware doesn't setup the framebuffers, their address and size are 0 in "iommu-addresses" property. If IOVA region is reserved with 0 length, then it ends up corrupti...

CVE-2023-52455 iommu: Don't reserve 0-length IOVA region

In the Linux kernel, the following vulnerability has been resolved: iommu: Don't reserve 0-length IOVA region When the bootloader/firmware doesn't setup the framebuffers, their address and size are 0 in "iommu-addresses" property. If IOVA region is reserved with 0 length, then it ends up corrupti...

CVE-2023-52455

In the Linux kernel, the following vulnerability has been resolved: iommu: Don't reserve 0-length IOVA region When the bootloader/firmware doesn't setup the framebuffers, their address and size are 0 in "iommu-addresses" property. If IOVA region is reserved with 0 length, then it ends up corrupti...

CVE-2023-52455

Mode C: CVE-2023-52455 relates to the Linux kernel IOMMU handling where a 0-length IOVA region in the iommu-addresses property could lead to IOVA rbtree corruption and display IOMMU mapping failures when framebuffer is absent. The documented fix adds a kernel check to skip IOVA reservation when t...

CVE-2023-4969 GPU kernel implementations susceptible to memory leak

A GPU kernel can read sensitive data from another GPU kernel even from another user or app through an optimized GPU memory region called local memory on various architectures...

ALPINE-CVE-2023-46837

Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes such as the ones during scrubbing have reached memory before handing over the page to a guest. Unfortunately, the arithmetics in the...

CVE-2023-4280 Unvalidated input in Silicon Labs TrustZone implementation leads to accessing Trusted memory region

An unvalidated input in Silicon Labs TrustZone implementation in v4.3.x and earlier of the Gecko SDK allows an attacker to access the trusted region of memory from the untrusted region...