SUSE CVE-2021-47555

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

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 Linux kernel, which stems from a reference count underflow...

PT-2024-8991

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a memory leak in the Linux kernel's VLAN component. When a dummy netdevice is removed, it can cause an underflow of the reference count for the real device,...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel, which is caused by a reference count underflow in the btrfs module...

UBUNTU-CVE-2024-27403

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftflowoffload: reset dst in route object after setting up flow dst is transferred to the flow object, route object does not own it anymore. Reset dst in route object, otherwise if flowoffloadadd fails, error path...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel, which is caused by a reference count underflow in the netfilter module...

CVE-2024-27003

CVE-2024-27003 affects the Linux kernel clock framework. The issue arises when printing clk_state via debugfs without proper runtime PM synchronization, risking deadlock if a thread resuming a device also resumes in another thread. The fix removes the now-superfluous clk_pm_runtime_get/put calls ...

CVE-2024-27003

In the Linux kernel, the following vulnerability has been resolved: clk: Get runtime PM before walking tree for clksummary Similar to the previous commit, we should make sure that all devices are runtime resumed before printing the clksummary through debugfs. Failure to do so would result in a...

PT-2024-21541

Name of the Vulnerable Software and Affected Versions Linux kernel versions 6.8.0-rc6-syzkaller-00159-gc055fc00c07b and earlier Description The issue is related to the handling of reference counts in the Linux kernel's TCP connection establishment process. Specifically, when the bhash2 allocation...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel that stems from a reference count underflow problem...

kernel: soundwire: bus: Fix unbalanced pm_runtime_put() causing usage count underflow

A reference count underflow flaw was found in the Linux kernel's SoundWire bus driver. When pmruntimeresumeandget returns an error -EACCES, the code continues execution and calls pmruntimeput at the end, even though the usage count was never incremented. This causes a usage count underflow in the...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: unregister flowtable hooks on netns exit CVE-2022-48935 In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: double hook unregistration in netns path...

PT-2025-37541

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The pm runtime get if in use function may return a negative error number, specifically -EAGAIN, during system resume when runtime power management is not yet active. This can lead to a...

PT-2025-54030

Name of the Vulnerable Software and Affected Versions linux affected versions not specified Description A flaw exists in the Linux kernel related to RDMA/efa resource deallocation. Specifically, the order of resource deallocation was incorrect, potentially leading to a refcount underflow when...

Linux kernel shiftfs count underflow vulnerability

Linux kernel is an open source operating system. A count underflow vulnerability exists in Linux kernel shiftfs, which allows local attackers to submit a special request that can be exploited for denial of service attacks...

UBUNTU-CVE-2019-15794

Overlayfs in the Linux kernel and shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, both replace vma-vmfile in their mmap handlers. On error the original value is not restored, and the reference is put for the file to which vmfile points. On...

macOS XNU - Missing Locking in checkdirs_callback() Enables Race with fchdir_common()

macOS XNU - Missing Locking in checkdirscallback Enables Race with fchdircommon On macOS, when a new mount point is created, the kernel uses checkdirs to, as a comment above the function explains: "Scan all active processes to see if any of them have a current or root directory onto which the new...