CVE-2026-74634

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Prevent subbuf order change when resizing is disabled Because ringbuffersubbuforderset frees buffer pages, we can't allow it when resizing is disabled. A non-consuming reader is at risk of use-after-free rbadvanceite...

CVE-2026-74601

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Use currentcontext for safe per-CPU buffer swap The ringbufferswapcpu function currently checks the per-CPU committing counter to determine if a buffer is actively being written to before performing the swap. However...

CVE-2026-74602

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Initialise reader page order in rballocatecpubuffer In rballocatecpubuffer, bpage-order was omitted, leaving it as 0. This is an issue for a ring-buffer with subbufs bigger than PAGESIZE if when freed: freebufferpage...

CVE-2026-74691 net: thunderbolt: Tear down DMA paths before stopping the rings

In the Linux kernel, the following vulnerability has been resolved: net: thunderbolt: Tear down DMA paths before stopping the rings tbnetteardown stops both rings and frees their frame buffers before calling tbxdomaindisablepaths. tbringstop zeroes the ring's descriptor base and tbnetfreebuffers...

CVE-2026-74691

CVE-2026-74691 is a bug in the Linux kernel's thunderbolt networking driver (net: thunderbolt). The tbnet_tear_down() function stops DMA rings and frees frame buffers before deactivating DMA paths, meaning in-flight DMA has no valid destination to drain to. The teardown order was never updated to...

CVE-2026-74634

This vulnerability affects the Linux kernel ring-buffer subsystem. The root cause is that ring_buffer_subbuf_order_set() frees buffer pages even when resizing is disabled, exposing non-consuming readers to a use-after-free via rb_advance_iter() . The fix returns -EBUSY on resize_disabled, matchin...

CVE-2026-74634 ring-buffer: Prevent subbuf order change when resizing is disabled

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Prevent subbuf order change when resizing is disabled Because ringbuffersubbuforderset frees buffer pages, we can't allow it when resizing is disabled. A non-consuming reader is at risk of use-after-free rbadvanceite...

EUVD-2026-64571

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Prevent subbuf order change when resizing is disabled Because ringbuffersubbuforderset frees buffer pages, we can't allow it when resizing is disabled. A non-consuming reader is at risk of use-after-free rbadvanceite...

CVE-2026-74602 ring-buffer: Initialise reader page order in rb_allocate_cpu_buffer()

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Initialise reader page order in rballocatecpubuffer In rballocatecpubuffer, bpage-order was omitted, leaving it as 0. This is an issue for a ring-buffer with subbufs bigger than PAGESIZE if when freed: freebufferpage...

CVE-2026-74601 ring-buffer: Use current_context for safe per-CPU buffer swap

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Use currentcontext for safe per-CPU buffer swap The ringbufferswapcpu function currently checks the per-CPU committing counter to determine if a buffer is actively being written to before performing the swap. However...

EUVD-2026-64538

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Use currentcontext for safe per-CPU buffer swap The ringbufferswapcpu function currently checks the per-CPU committing counter to determine if a buffer is actively being written to before performing the swap. However...

CVE-2026-74602

CVE-2026-74602 is a Linux kernel vulnerability in the ring-buffer subsystem. In rb_allocate_cpu_buffer(), the field bpage->order was left uninitialized (defaulting to 0). This becomes a problem when a ring-buffer uses subbuffers larger than PAGE_SIZE, because free_buffer_page() relies on the c...

CVE-2026-74601 ring-buffer: Use current_context for safe per-CPU buffer swap

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Use currentcontext for safe per-CPU buffer swap The ringbufferswapcpu function currently checks the per-CPU committing counter to determine if a buffer is actively being written to before performing the swap. However...

CVE-2026-74601

CVE-2026-74601 is a race condition in the Linux kernel ring-buffer (tracing subsystem). The ring_buffer_swap_cpu() function checks a per-CPU committing counter to determine if a buffer is actively being written to before performing a swap. However, this counter can temporarily drop to 0 during a ...

CVE-2026-74602 ring-buffer: Initialise reader page order in rb_allocate_cpu_buffer()

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Initialise reader page order in rballocatecpubuffer In rballocatecpubuffer, bpage-order was omitted, leaving it as 0. This is an issue for a ring-buffer with subbufs bigger than PAGESIZE if when freed: freebufferpage...

EUVD-2026-64539

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Initialise reader page order in rballocatecpubuffer In rballocatecpubuffer, bpage-order was omitted, leaving it as 0. This is an issue for a ring-buffer with subbufs bigger than PAGESIZE if when freed: freebufferpage...

PT-2026-79606

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Use current context for safe per-CPU buffer swap The ring buffer swap cpu function currently checks the per-CPU committing counter to determine if a buffer is actively being written to before performing the swap...

PT-2026-79639

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Prevent subbuf order change when resizing is disabled Because ring buffer subbuf order set frees buffer pages, we can't allow it when resizing is disabled. A non-consuming reader is at risk of use-after-free rb advan...

PT-2026-79607

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Initialise reader page order in rb allocate cpu buffer In rb allocate cpu buffer, bpage-order was omitted, leaving it as 0. This is an issue for a ring-buffer with subbufs bigger than PAGE SIZE if when freed: free...

CVE-2026-74447

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix uint32t overflow in EOP ring buffer size alignment eopringbuffersize in struct queueproperties is a u32. In kfdqueueacquirebuffers the expected EOP buffer size is computed as ALIGNeopringbuffersize, PAGESIZE; ALIG...