GO-2026-6354 Prevent DoS on deadlocked undecided channel in golang.org/x/crypto/ssh

Previously, a channel registered in the mux's chanList is not usable until it is established. A malicious peer was able flood the channel's incomingRequests, deadlocking the entire connection. Now, we add an atomic established state, set when a channel becomes usable. Until such a time,...

GO-2026-6355 Prevent DoS on deadlocked established channel in golang.org/x/crypto/ssh

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connectio...

Allocation of Resources Without Limits or Throttling

Overview github.com/golang/crypto/ssh is a SSH client and server Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the connection multiplexer's channel handling the mux chanList, reached through Dial, NewClientConn, NewControlClientConn, a...

Allocation of Resources Without Limits or Throttling

Overview github.com/golang/crypto/ssh is a SSH client and server Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in its connection multiplexing, reached through Dial, NewClientConn, NewControlClientConn, and NewServerConn, which buffers...

PT-2026-84861

Name of the Vulnerable Software and Affected Versions The product name cannot be determined. affected versions not specified Description A flaw exists where a channel registered in the mux's chanList remains unusable until it is established. A malicious peer can flood the incomingRequests of the...

PT-2026-84853

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description A malicious peer can send crafted messages after a channel has been established to cause a deadlock of the entire connection. This occurs because the system...

CVE-2026-80687

A flaw was found in the Linux kernel's iommufd/viommu component. An error in the iommufdvdeviceallocioctl function's error handling path can lead to a lock being held indefinitely. This can cause a deadlock, preventing further virtual device vDEVICE operations and resulting in a Denial of Service...

CVE-2026-80666

A flaw was found in the Linux kernel's Bluetooth Synchronous Connection-Oriented SCO component. A race condition exists in the scosocktimeout function. When a Bluetooth SCO socket is closing while its timer is active, the system attempts to acquire the same lock twice, leading to a deadlock. This...

CVE-2026-80659

A flaw was found in the Linux kernel's vub300 driver. When the vub300cmndworkthread function holds a command mutex and a command response times out, the device reset path attempts to re-acquire the same mutex recursively. This recursive locking can lead to a deadlock, causing a Denial of Service...

CVE-2026-80660

A flaw was found in the Linux kernel's hwmon occ component. This vulnerability occurs when occactivefalse or occshutdown attempt to unregister sysfs devices while holding the occ-lock. During this process, sysfs callbacks can re-enter the OCC update path and try to acquire the occ-lock again,...

CVE-2026-80720

A flaw was found in the iomap component of the Linux kernel. The iomapsplitioend function can cause a deadlock when it attempts to split bios that originate from iomapioendbioset and the bioset is exhausted. This can lead to a system hang, resulting in a Denial of Service DoS for affected systems...

Linux Distros Unpatched Vulnerability : CVE-2026-80660

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - hwmon: occ unregister sysfs devices outside occ lock occactivefalse and occshutdown unregister sysfs-backed devices while occ-lock is held. hwmondeviceunregiste...

Linux Distros Unpatched Vulnerability : CVE-2026-80659

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mmc: vub300: defer reset until cmdmutex is unlocked vub300cmndworkthread holds cmdmutex while it sends a command and waits for the command response. If the...

Linux Distros Unpatched Vulnerability : CVE-2026-80687

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iommufd/viommu: Release the igroup lock on the vdevicesize error path iommufdvdeviceallocioctl takes idev-igroup-lock, then validates the driver's vdevicesize...

Linux Distros Unpatched Vulnerability : CVE-2026-80720

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iomap: add a separate bioset for iomapsplitioend iomapsplitioend can split bios that already come from iomapioendbioset and thus deadlock when the bioset is...

Linux Distros Unpatched Vulnerability : CVE-2026-80666

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: sco: Fix a race condition in scosocktimeout scosocktimeout runs asynchronously and locksocksk. If the socket is closing while the timer is running, i...

CVE-2026-80720

In the Linux kernel, the following vulnerability has been resolved: iomap: add a separate bioset for iomapsplitioend iomapsplitioend can split bios that already come from iomapioendbioset and thus deadlock when the bioset is exhausted. Add a separate bioset to avoid this deadlock. Christian Braun...

CVE-2026-80687

In the Linux kernel, the following vulnerability has been resolved: iommufd/viommu: Release the igroup lock on the vdevicesize error path iommufdvdeviceallocioctl takes idev-igroup-lock, then validates the driver's vdevicesize against the core structure size with a WARNONONCE. On failure that gua...

CVE-2026-80660

In the Linux kernel, the following vulnerability has been resolved: hwmon: occ unregister sysfs devices outside occ lock occactivefalse and occshutdown unregister sysfs-backed devices while occ-lock is held. hwmondeviceunregister and sysfsremovegroup can wait for active sysfs callbacks to drain,...

CVE-2026-80659

In the Linux kernel, the following vulnerability has been resolved: mmc: vub300: defer reset until cmdmutex is unlocked vub300cmndworkthread holds cmdmutex while it sends a command and waits for the command response. If the response wait times out, vub300commandresponse kills the command URBs and...