CVE-2023-54174

In the Linux kernel, the following vulnerability has been resolved: vfio: Fix NULL pointer dereference caused by uninitialized group-iommufd group-iommufd is not initialized for the iommufdctxput 20018.331541 BUG: kernel NULL pointer dereference, address: 0000000000000000 20018.377508 RIP:...

UBUNTU-CVE-2023-54174

In the Linux kernel, the following vulnerability has been resolved: vfio: Fix NULL pointer dereference caused by uninitialized group-iommufd group-iommufd is not initialized for the iommufdctxput 20018.331541 BUG: kernel NULL pointer dereference, address: 0000000000000000 20018.377508 RIP:...

CVE-2022-50815

In the Linux kernel, the following vulnerability has been resolved: ext2: Add sanity checks for group and filesystem size Add sanity check that filesystem size does not exceed the underlying device size and that group size is big enough so that metadata can fit into it. This avoid trying to mount...

CVE-2022-50815

In the Linux kernel, the following vulnerability has been resolved: ext2: Add sanity checks for group and filesystem size Add sanity check that filesystem size does not exceed the underlying device size and that group size is big enough so that metadata can fit into it. This avoid trying to mount...

UBUNTU-CVE-2022-50815

In the Linux kernel, the following vulnerability has been resolved: ext2: Add sanity checks for group and filesystem size Add sanity check that filesystem size does not exceed the underlying device size and that group size is big enough so that metadata can fit into it. This avoid trying to mount...

CVE-2023-54318 net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add

In the Linux kernel, the following vulnerability has been resolved: net/smc: use smclgrlist.lock to protect smclgrlist.list iterate in smcrportadd While doing smcrportadd, there maybe linkgroup add into or delete from smclgrlist.list at the same time, which may result kernel crash. So, use...

CVE-2023-54297

CVE-2023-54297 affects the Linux kernel (btrfs zoned). Root cause: in exclude_super_stripes(), finding a block group with super blocks and exiting on zoned filesystems without freeing the logical address of the super blocks, causing a memory leak. The fix frees the allocated logical address to pr...

CVE-2023-54297

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: fix memory leak after finding block group with super blocks At excludesuperstripes, if we happen to find a block group that has super blocks mapped to it and we are on a zoned filesystem, we error out as this is not...

CVE-2023-54297 btrfs: zoned: fix memory leak after finding block group with super blocks

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: fix memory leak after finding block group with super blocks At excludesuperstripes, if we happen to find a block group that has super blocks mapped to it and we are on a zoned filesystem, we error out as this is not...

CVE-2023-54174

In the Linux kernel, the following vulnerability has been resolved: vfio: Fix NULL pointer dereference caused by uninitialized group-iommufd group-iommufd is not initialized for the iommufdctxput 20018.331541 BUG: kernel NULL pointer dereference, address: 0000000000000000 20018.377508 RIP:...

CVE-2023-54174

CVE-2023-54174 affects the Linux kernel vfio path: a NULL pointer dereference occurs when group->iommufd is uninitialized in iommufd_ctx_put(), leading to kernel crash via vfio_group_fops_unl_ioctl flow. The issue is caused by iommufd_ctx_put dereferencing an uninitialized group->iommufd, a...

CVE-2022-50815 ext2: Add sanity checks for group and filesystem size

In the Linux kernel, the following vulnerability has been resolved: ext2: Add sanity checks for group and filesystem size Add sanity check that filesystem size does not exceed the underlying device size and that group size is big enough so that metadata can fit into it. This avoid trying to mount...

CVE-2022-50815

CVE-2022-50815 relates to the Linux kernel, addressing a vulnerability in ext2 after which the kernel was updated to add sanity checks for group and filesystem size. The issue arose because filesystem size could exceed the underlying device size and the group size might be too small to hold metad...

CVE-2022-50815 ext2: Add sanity checks for group and filesystem size

In the Linux kernel, the following vulnerability has been resolved: ext2: Add sanity checks for group and filesystem size Add sanity check that filesystem size does not exceed the underlying device size and that group size is big enough so that metadata can fit into it. This avoid trying to mount...

CVE-2022-50815

In the Linux kernel, the following vulnerability has been resolved: ext2: Add sanity checks for group and filesystem size Add sanity check that filesystem size does not exceed the underlying device size and that group size is big enough so that metadata can fit into it. This avoid trying to mount...

Silver Fox Targets Indian Users With Tax-Themed Emails Delivering ValleyRAT Malware

The threat actor known as Silver Fox has turned its focus to India, using income tax-themed lures in phishing campaigns to distribute a modular remote access trojan called ValleyRAT aka Winos 4.0. "This sophisticated attack leverages a complex kill chain involving DLL hijacking and the modular...

Linux kernel 安全漏洞

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 a failure to release a logical address after finding a block group containing a superblock, which could lead...

PT-2025-54003

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw where a NULL pointer dereference can occur due to an uninitialized group-iommufd. This issue is present in the iommufd ctx put function and can be...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992294)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992294 advisory. In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Prevent integer overflow in AG size calculation The JFS filesystem calculates allocation...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-992575)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992575 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix sysfs interface lifetime The current nilfs2 sysfs support has issues with the timing ...