CVE-2026-89503

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix subbuf resize race with ringbufferallocreadpage ringbufferallocreadpage is racy with ringbuffersubbuforderset, it can allocate a reader page with an outdated order. This isn't a big issue, the user can still...

EUVD-2026-76408

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Free cpubuffer::freepage with subbuforder When sub-buffers use an order greater than 0, cpubuffer-freepage is allocated with subbuforder. Use the correct order for cpubuffer-freepage...

CVE-2026-89502

CVE-2026-89502 is a Linux kernel vulnerability in the ring-buffer subsystem. The root cause is that when sub-buffers use a page order greater than 0 , the cpu_buffer->free_page field is allocated using subbuf_order but subsequently freed with the wrong order, leading to an incorrect page relea...

CVE-2026-89502 ring-buffer: Free cpu_buffer::free_page with subbuf_order

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Free cpubuffer::freepage with subbuforder When sub-buffers use an order greater than 0, cpubuffer-freepage is allocated with subbuforder. Use the correct order for cpubuffer-freepage...

EUVD-2026-76406

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Make cpubuffer::freepage a bufferdatareadpage Discarding a cached reader page after a concurrent ring buffer resize uses the new global subbuforder for the freepages call. This mismatched order may crashes the kernel...

CVE-2026-89500

CVE-2026-89500 is a flaw in the Linux kernel's ring-buffer component. When a cached reader page is discarded after a concurrent ring buffer resize, the kernel uses the new global subbuf_order for the free_pages() call rather than the order under which the page was originally allocated. This misma...

CVE-2026-89500

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Make cpubuffer::freepage a bufferdatareadpage Discarding a cached reader page after a concurrent ring buffer resize uses the new global subbuforder for the freepages call. This mismatched order may crashes the kernel...

CVE-2026-89499 ring-buffer: Stop remote reader update when page swap fails

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Stop remote reader update when page swap fails The remote swapreaderpage callback can return -EBUSY when the writer moves the head before the remote catches it, particularly during an event storm on a small buffer...

CVE-2026-89499

CVE-2026-89499 affects the Linux kernel ring-buffer component. When the remote swap_reader_page callback returns -EBUSY (e.g., during an event storm on a small buffer), __rb_get_reader_page_from_remote() incorrectly continues with an unchanged reader ID and rearranges the local page list as thoug...

EUVD-2026-76405

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Stop remote reader update when page swap fails The remote swapreaderpage callback can return -EBUSY when the writer moves the head before the remote catches it, particularly during an event storm on a small buffer...

CVE-2026-89499

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Stop remote reader update when page swap fails The remote swapreaderpage callback can return -EBUSY when the writer moves the head before the remote catches it, particularly during an event storm on a small buffer...

CVE-2026-89499 ring-buffer: Stop remote reader update when page swap fails

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Stop remote reader update when page swap fails The remote swapreaderpage callback can return -EBUSY when the writer moves the head before the remote catches it, particularly during an event storm on a small buffer...

CVE-2026-89487 openvswitch: only skb_tx_error() a packet we are about to drop

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

EUVD-2026-76393

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487 openvswitch: only skb_tx_error() a packet we are about to drop

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487

CVE-2026-89487 affects the openvswitch subsystem in the Linux kernel. The bug resides in queue_userspace_packet(), whose error path calls skb_tx_error() on a packet that is still being forwarded through remaining flow actions. This call strips SKBFL_SHARED_FRAG from the live skb via skb_zcopy_cle...

CVE-2026-89483 nvme: zero the discard fallback page

In the Linux kernel, the following vulnerability has been resolved: nvme: zero the discard fallback page nvmesetupdiscard always maps sizeofstruct nvmedsmrange NVMEDSMMAXRANGES = 4096 bytes as the DSM payload however many ranges the command declares, because some devices ignore the 'Number of...

CVE-2026-89483

In the Linux kernel, the following vulnerability has been resolved: nvme: zero the discard fallback page nvmesetupdiscard always maps sizeofstruct nvmedsmrange NVMEDSMMAXRANGES = 4096 bytes as the DSM payload however many ranges the command declares, because some devices ignore the 'Number of...

CVE-2026-89483

CVE-2026-89483 is an information disclosure flaw in the Linux kernel NVMe subsystem . When nvme_setup_discard() falls back to the per-controller ctrl->discard_page (allocated via alloc_page(GFP_KERNEL) without zeroing) under memory pressure, up to 4080 bytes of uninitialized kernel memory (inc...