UBUNTU-CVE-2026-80933

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: validate default EEPROM firmware size The default EEPROM firmware is parsed and copied as a full EEPROM without checking its length. A truncated file can make the driver read beyond the firmware buffer during...

CVE-2026-89771 ring-buffer: Fix subbuf resize race with ring buffer readers

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix subbuf resize race with ring buffer readers tracebuffer subbufsize is read lockless in ringbufferreadpage and ringbufferreadstart, while it can simultaneously be resized with ringbuffersubbuforderset. Instead of...

EUVD-2026-76683

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix subbuf resize race with ring buffer readers tracebuffer subbufsize is read lockless in ringbufferreadpage and ringbufferreadstart, while it can simultaneously be resized with ringbuffersubbuforderset. Instead of...

CVE-2026-89771

This Linux kernel race condition affects the trace ring buffer resize mechanism. The field trace_buffer::subbuf_size is read locklessly in ring_buffer_read_page() and ring_buffer_read_start() while it can be concurrently modified by ring_buffer_subbuf_order_set(). According to Red Hat, this can a...

CVE-2026-89771 ring-buffer: Fix subbuf resize race with ring buffer readers

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix subbuf resize race with ring buffer readers tracebuffer subbufsize is read lockless in ringbufferreadpage and ringbufferreadstart, while it can simultaneously be resized with ringbuffersubbuforderset. Instead of...

CVE-2026-89759

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid soft lockup when scanning task stacks Patch series "mm/kmemleak: avoid soft lockup when scanning task", v3. kmemleakscan scans every task stack under one rcureadlock with no reschedule point, which can trip the...

CVE-2026-89759 mm/kmemleak: avoid soft lockup when scanning task stacks

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid soft lockup when scanning task stacks Patch series "mm/kmemleak: avoid soft lockup when scanning task", v3. kmemleakscan scans every task stack under one rcureadlock with no reschedule point, which can trip the...

CVE-2026-89759

CVE-2026-89759 affects the Linux kernel's mm/kmemleak subsystem. The root cause is that kmemleak_scan() walks every task stack under a single rcu_read_lock() with no reschedule point; on hosts with a very large number of threads (amplified by KASAN/lockdep in debug builds), the loop can hog a CPU...

EUVD-2026-76671

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid soft lockup when scanning task stacks Patch series "mm/kmemleak: avoid soft lockup when scanning task", v3. kmemleakscan scans every task stack under one rcureadlock with no reschedule point, which can trip the...

CVE-2026-89743 misc: nsm: bound the device-reported response length

In the Linux kernel, the following vulnerability has been resolved: misc: nsm: bound the device-reported response length nsmsendrecvmsglocked stores the virtqueue used-ring length reported by the NSM device into msg-resp.len without bounding it to the response buffer. A malicious or buggy backend...

EUVD-2026-76655

In the Linux kernel, the following vulnerability has been resolved: misc: nsm: bound the device-reported response length nsmsendrecvmsglocked stores the virtqueue used-ring length reported by the NSM device into msg-resp.len without bounding it to the response buffer. A malicious or buggy backend...

CVE-2026-89743 misc: nsm: bound the device-reported response length

In the Linux kernel, the following vulnerability has been resolved: misc: nsm: bound the device-reported response length nsmsendrecvmsglocked stores the virtqueue used-ring length reported by the NSM device into msg-resp.len without bounding it to the response buffer. A malicious or buggy backend...

CVE-2026-89743

In the Linux kernel, the following vulnerability has been resolved: misc: nsm: bound the device-reported response length nsmsendrecvmsglocked stores the virtqueue used-ring length reported by the NSM device into msg-resp.len without bounding it to the response buffer. A malicious or buggy backend...

CVE-2026-89743

A vulnerability in the Linux kernel's NSM (Network Shared Memory) driver allows a malicious or buggy backend to report a response length larger than the allocated buffer. The function nsm_sendrecv_msg_locked() stores the virtqueue used-ring length without bounding it, so parse_resp_raw() copies e...

CVE-2026-89731

CVE-2026-89731 is an out-of-bounds read in the Linux kernel CXL/RAS subsystem, specifically in the cxl_rch_get_aer_info() function. The function copies the RCH Downstream Port AER capability from the RCRB MMIO block using a readl() loop bounded by sizeof(struct aer_capability_regs). Since struct ...

CVE-2026-89732 usb: gadget: f_fs: Prevent deadlock during ep0 read loop

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Prevent deadlock during ep0 read loop Currently, ffsep0read holds ffs-mutex when it prepares to go to sleep waiting for an event. When no setup events are pending, it calls waiteventinterruptibleexclusivelockedi...

EUVD-2026-76644

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Prevent deadlock during ep0 read loop Currently, ffsep0read holds ffs-mutex when it prepares to go to sleep waiting for an event. When no setup events are pending, it calls waiteventinterruptibleexclusivelockedi...

CVE-2026-89731 cxl/ras: Fix cxl_rch_get_aer_info() out-of-bounds AER register read

In the Linux kernel, the following vulnerability has been resolved: cxl/ras: Fix cxlrchgetaerinfo out-of-bounds AER register read cxlrchgetaerinfo copies the RCH Downstream Port AER capability from the RCRB MMIO block using a readl loop bounded by sizeofstruct aercapabilityregs. This struct is a...

CVE-2026-89731 cxl/ras: Fix cxl_rch_get_aer_info() out-of-bounds AER register read

In the Linux kernel, the following vulnerability has been resolved: cxl/ras: Fix cxlrchgetaerinfo out-of-bounds AER register read cxlrchgetaerinfo copies the RCH Downstream Port AER capability from the RCRB MMIO block using a readl loop bounded by sizeofstruct aercapabilityregs. This struct is a...

CVE-2026-89731

In the Linux kernel, the following vulnerability has been resolved: cxl/ras: Fix cxlrchgetaerinfo out-of-bounds AER register read cxlrchgetaerinfo copies the RCH Downstream Port AER capability from the RCRB MMIO block using a readl loop bounded by sizeofstruct aercapabilityregs. This struct is a...