Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel version 5.16. It stems from an empty pointer dereferencing on the transmission path within the fib expression in the netdev egress base chain, resulting in a null pointer dereference...

CVE-2026-74552: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: hwmon: lm90 Only report alarms if driver is ready Userspace can read sysfs attributes before driver registration is complete, immediately after devmhwmondeviceregisterwithinfo has been called. At that time, data-hwmondev is not y...

CVE-2026-72091: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: reject user command submission without a command BO amdxdnadrmsubmitexecbuf passes the user-supplied command BO handle straight into amdxdnacmdsubmit with drvcmd == NULL. When the handle is AMDXDNAINVALIDBOHANDLE 0...

PT-2026-72929

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference exists in the hprobe expire function. This issue occurs when forking a task that has a pending uretprobe, which can lead to a kernel oops during the clone path...

PT-2026-72740

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference occurs in the Bluetooth component when handling non-serdev devices. The qca setup function unconditionally calls serdev device get drvdata using the hu-serdev...

PT-2026-72591

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference occurs in the ALSA FCP component when processing a malformed USB device. The fcp find fc interface function selects the first vendor-specific interface and...

PT-2026-72565

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the AFS component where the afs apply status function unconditionally calls mapping set release always for symlinks and mountpoints. While regular AFS files use afs fi...

PT-2026-72634

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ALSA usb-audio qcom component where the handle uaudio stream req function fails to properly validate the interface index returned by info idx from ifnum during a...

PT-2026-72547

In the Linux kernel, the following vulnerability has been resolved: drm/xe: fix NPD in bo meminfo When a buffer object is purged, its ttm.resource is set to NULL via the TTM pipeline gutting flow. However, the BO remains in the client's object list until userspace explicitly closes the GEM handle...

PT-2026-72534

In the Linux kernel, the following vulnerability has been resolved: platform/x86: bitland-mifs-wmi: Fix NULL pointer dereference during suspend/resume The driver registers two distinct WMI devices: a control device BITLAND WMI CONTROL and an event device BITLAND WMI EVENT. During the probe phase,...

PT-2026-72197

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A null pointer dereference issue exists in the mediatek power domain driver. The driver unconditionally attempts to perform cleanup for DIRECT CTL domains when a probe fails for HW VOTER...

PT-2026-72280

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference exists in the drm sched worker of the Linux kernel. The issue occurs when amdxdna drm submit execbuf passes a user-supplied command BO handle to amdxdna cmd...

PT-2026-72293

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The pcache target parses optional arguments as name/value pairs. When a table provides a recognized option name, such as cache mode, without a corresponding value, the parse cache opts...

CVE-2026-74403: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Check for page allocation failure correctly in TIO Sashiko notes: if snpallocfirmwarepages returns NULL under memory pressure, is it safe to pass it directly to pageaddress? On architectures without HASHEDPAGEVIRTUA...

CVE-2026-74400: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: fix crash in bpfset|removedentryxattr for negative dentries bpfsetdentryxattr and bpfremovedentryxattr BPF kfuncs attempt to lock the inode of the supplied dentry without checking if it is NULL. If a negative dentry is passe...

CVE-2026-74366: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix NULL deref in changestalinks for unready link ieee80211setactivelinks calls ieee80211linkusechannel for each newly-added link and WARNONONCEs if it fails. The call uses assignonfailure=true, which allows mac8021...

CVE-2026-74322: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Fix possible NULL pointer dereference in mt7996macwritetxwi80211 For injected frames e.g. via radiotap, mac80211 can pass info-control.vif = NULL, as explicitly noted in struct ieee80211txinfo. Check vif point...

CVE-2026-74311: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: virtio: rtc: tear down old virtqueues before restore virtiodevicerestore resets the device and restores the negotiated features before calling -restore. viortcfreeze intentionally leaves the existing virtqueues in place so the...

CVE-2026-74304: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciqca: fix NULL pointer dereference in qcasetup for non-serdev device hu-serdev is NULL for hciuart attached via non-serdev paths, but qcasetup unconditionally calls serdevdevicegetdrvdatahu-serdev and dereferences th...

CVE-2026-72458: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL pointer dereference in unpackpdb pdb-dfa could be NULL if unpackdfa fails, causing a NULL pointer dereference...