xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling

A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of servi...

CVE-2026-46240

In the Linux kernel, the following vulnerability has been resolved: media: iris: Fix use-after-free in irisreleaseinternalbuffers The recent change in commit 1dabf00ee206 "media: iris: gen1: Destroy internal buffers after FW releases" introduced a regression where sessionreleasebuf may free the...

CVE-2026-46234

In the Linux kernel, the following vulnerability has been resolved: vsock: fix buffer size clamping order In vsockupdatebuffersize, the buffer size was being clamped to the maximum first, and then to the minimum. If a user sets a minimum buffer size larger than the maximum, the minimum check...

CVE-2026-46224

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix bo leak in xedmabufinitobj on allocation failure When drmgpuvmresvobjectalloc fails, the pre-allocated storage bo is not freed. Add xebofreestorage before returning the error. xedmabufinitobj calls xeboinitlocked, whi...

CVE-2026-46204

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn4: Prevent OOB reads when parsing IB Rewrite the IB parsing to use amdgpuibgetvalue which handles the bounds checks...

CVE-2026-46197

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: validate SVM ioctl nattr against buffer size Validate nattr field against the buffer size, preventing out-of-bounds buffer access via user-controlled attribute count. cherry picked from commit...

CVE-2026-46199

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg Check bounds against the end of the BO whenever we access the msg...

CVE-2026-46191

In the Linux kernel, the following vulnerability has been resolved: fbcon: Avoid OOB font access if console rotation fails Clear the font buffer if the reallocation during console rotation fails in fbconrotatefont. The putcs implementations for the rotated buffer will return early in this case. S...

CVE-2026-46151

In the Linux kernel, the following vulnerability has been resolved: usb: usblp: fix heap leak in IEEE 1284 device ID via short response usblpctrlmsg collapses the usbcontrolmsg return value to 0/-errno, discarding the actual number of bytes transferred. A broken printer can complete the GETDEVICE...

CVE-2026-46149

In the Linux kernel, the following vulnerability has been resolved: scsi: target: configfs: Bound snprintf return in tgptgpmembersshow targettgptgpmembersshow formats LUN paths with snprintf into a 256-byte stack buffer, then will memcpy curlen bytes from that buffer. snprintf returns the length...

CVE-2026-46136

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix a potential clc buffer length underflow The buflen is used to limit the iterations for retrieving the country power setting and may underflow under certain conditions due to changes in the power table in...

CVE-2026-46128

In the Linux kernel, the following vulnerability has been resolved: ipmi: Check event message buffer response for bad data The event message buffer response data size got checked later when processing, but check it right after the response comes back. It appears some BMCs may return an empty...

CVE-2026-46123

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: virtiobt: clamp rx length before skbput virtbtrxwork calls skbputskb, len where len comes directly from virtqueuegetbuf with no validation against the buffer we posted to the device. The RX skb is allocated in...

UBUNTU-CVE-2026-46204

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn4: Prevent OOB reads when parsing IB Rewrite the IB parsing to use amdgpuibgetvalue which handles the bounds checks...

UBUNTU-CVE-2026-46136

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix a potential clc buffer length underflow The buflen is used to limit the iterations for retrieving the country power setting and may underflow under certain conditions due to changes in the power table in...

UBUNTU-CVE-2026-46197

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: validate SVM ioctl nattr against buffer size Validate nattr field against the buffer size, preventing out-of-bounds buffer access via user-controlled attribute count. cherry picked from commit...

UBUNTU-CVE-2026-46151

In the Linux kernel, the following vulnerability has been resolved: usb: usblp: fix heap leak in IEEE 1284 device ID via short response usblpctrlmsg collapses the usbcontrolmsg return value to 0/-errno, discarding the actual number of bytes transferred. A broken printer can complete the GETDEVICE...

UBUNTU-CVE-2026-46198

In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix integer overflow on buffpos Fixing an integer overflow present in batadvivogmsendtoif. The size check is done using the int type in batadvivogmaggrpacket whereas the buffpos variable uses the s16 type. This could...

UBUNTU-CVE-2026-46149

In the Linux kernel, the following vulnerability has been resolved: scsi: target: configfs: Bound snprintf return in tgptgpmembersshow targettgptgpmembersshow formats LUN paths with snprintf into a 256-byte stack buffer, then will memcpy curlen bytes from that buffer. snprintf returns the length...

UBUNTU-CVE-2026-46123

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: virtiobt: clamp rx length before skbput virtbtrxwork calls skbputskb, len where len comes directly from virtqueuegetbuf with no validation against the buffer we posted to the device. The RX skb is allocated in...