CVE-2026-68438

In the Linux kernel, the following vulnerability has been resolved: smp: Make CSD lock acquisition atomic for debug mode Commit b0473dcd4b1d "smp: Improve smpcallfunctionsingle CSD-lock diagnostics" changed smpcallfunctionsingle so that, when CSD lock debugging is enabled, async !wait calls use t...

CVE-2026-68438 smp: Make CSD lock acquisition atomic for debug mode

In the Linux kernel, the following vulnerability has been resolved: smp: Make CSD lock acquisition atomic for debug mode Commit b0473dcd4b1d "smp: Improve smpcallfunctionsingle CSD-lock diagnostics" changed smpcallfunctionsingle so that, when CSD lock debugging is enabled, async !wait calls use t...

CVE-2026-68438

The CVE-2026-68438 entry describes a Linux kernel issue in smp_call_function_single() related to the CSD lock diagnostic path. When CSD lock debugging is enabled, the patch makes CSD_FLAG_LOCK acquisition atomic via try_cmpxchg_acquire(), turning the previously non-atomic read-modify-write into a...

CVE-2026-68438

In the Linux kernel, the following vulnerability has been resolved: smp: Make CSD lock acquisition atomic for debug mode Commit b0473dcd4b1d "smp: Improve smpcallfunctionsingle CSD-lock diagnostics" changed smpcallfunctionsingle so that, when CSD lock debugging is enabled, async !wait calls use t...

CVE-2026-68438: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: smp: Make CSD lock acquisition atomic for debug mode Commit b0473dcd4b1d "smp: Improve smpcallfunctionsingle CSD-lock diagnostics" changed smpcallfunctionsingle so that, when CSD lock debugging is enabled, async !wait calls use t...

PT-2026-70952

In the Linux kernel, the following vulnerability has been resolved: smp: Make CSD lock acquisition atomic for debug mode Commit b0473dcd4b1d "smp: Improve smp call function single CSD-lock diagnostics" changed smp call function single so that, when CSD lock debugging is enabled, async !wait calls...

K000162727: Linux kernel vulnerability CVE-2026-43029

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: mptcp: fix soft lockup in mptcprecvmsg syzbot reported a soft lockup in mptcprecvmsg 0. When receiving data with MSGPEEK | MSGWAITALL flags, the skb is not removed from the skreceivequeue. This cause...

CVE-2026-64289

A flaw was found in the Linux kernel. In the iommufd component, the iommufdhwptinvalidate function allows a local user to provide excessively large values for entrynum and entrylen during cache invalidation. This can lead to a Denial of Service DoS by causing the system to become unresponsive...

CVE-2026-64334

A flaw was found in the Linux kernel's digiacceleport USB serial driver. This vulnerability occurs when a USB device using the driver is disconnected, and operations such as opening or closing the device are happening concurrently. Persistent errors in sending out-of-band OOB write Universal Seri...

CVE-2026-64474

A flaw was found in the Linux kernel's Virtual Function I/O VFIO device migration feature. The vfiomiggetnextstate function, responsible for managing device migration states, contains an infinite loop. This occurs when processing certain blocked transitions, causing the system to hold a driver...

Siemens SIMATIC S7-1500 CPU 1518 MFP Improper Input Validation (CVE-2025-39782)

In the Linux kernel, the following vulnerability has been resolved: jbd2: prevent softlockup in jbd2logdocheckpoint Both jbd2logdocheckpoint and jbd2journalshrinkcheckpointlist periodically release jlistlock after processing a batch of buffers to avoid long hold times on the jlistlock. However,...

SUSE CVE-2026-64334

In the Linux kernel, the following vulnerability has been resolved: USB: serial: digiacceleport: fix hard lockup on disconnect If submitting the OOB write urb fails persistently e.g if the device is being disconnected the driver would loop indefinitely with interrupts disabled. Check for urb...

SUSE CVE-2026-64474

In the Linux kernel, the following vulnerability has been resolved: vfio: prevent infinite loop in vfiomiggetnextstate on blocked arc vfiomiggetnextstate walks vfiofromfsmtable one step at a time, looping to skip optional states the device does not support until nextfsm is supported. A blocked...

AZL-93764 CVE-2026-64474 affecting package kernel for versions less than 6.6.145.2-1

In the Linux kernel, the following vulnerability has been resolved: vfio: prevent infinite loop in vfiomiggetnextstate on blocked arc vfiomiggetnextstate walks vfiofromfsmtable one step at a time, looping to skip optional states the device does not support until nextfsm is supported. A blocked...

CVE-2026-64474

In the Linux kernel, the following vulnerability has been resolved: vfio: prevent infinite loop in vfiomiggetnextstate on blocked arc vfiomiggetnextstate walks vfiofromfsmtable one step at a time, looping to skip optional states the device does not support until nextfsm is supported. A blocked...

CVE-2026-64334

In the Linux kernel, the following vulnerability has been resolved: USB: serial: digiacceleport: fix hard lockup on disconnect If submitting the OOB write urb fails persistently e.g if the device is being disconnected the driver would loop indefinitely with interrupts disabled. Check for urb...

UBUNTU-CVE-2026-64415

In the Linux kernel, the following vulnerability has been resolved: mm/swap: add condresched in swapreclaimfullclusters to prevent softlockup We hit a real softlockup in an internal stress test environment. The workload was LTP memory/swap stress on a large arm64 machine, with 320 CPUs, about 1TB...

UBUNTU-CVE-2026-64334

In the Linux kernel, the following vulnerability has been resolved: USB: serial: digiacceleport: fix hard lockup on disconnect If submitting the OOB write urb fails persistently e.g if the device is being disconnected the driver would loop indefinitely with interrupts disabled. Check for urb...

CVE-2026-64474

In the Linux kernel, the following vulnerability has been resolved: vfio: prevent infinite loop in vfiomiggetnextstate on blocked arc vfiomiggetnextstate walks vfiofromfsmtable one step at a time, looping to skip optional states the device does not support until nextfsm is supported. A blocked...

UBUNTU-CVE-2026-64474

In the Linux kernel, the following vulnerability has been resolved: vfio: prevent infinite loop in vfiomiggetnextstate on blocked arc vfiomiggetnextstate walks vfiofromfsmtable one step at a time, looping to skip optional states the device does not support until nextfsm is supported. A blocked...