CVE-2026-90303

CVE-2026-90303 affects the Linux kernel on ARM architecture. When CONFIG_DEBUG_USER=y and the kernel command-line option user_debug=31 are active, a user fault can trigger show_pte() without holding any lock. If another thread in the same process concurrently calls munmap() , page table pages may...

CVE-2026-90303 ARM: 9485/1: mm: acquire mmap write lock around show_pte() for user faults

In the Linux kernel, the following vulnerability has been resolved: ARM: 9485/1: mm: acquire mmap write lock around showpte for user faults When CONFIGDEBUGUSER=y, and cmdline "userdebug=31" is set, a user fault may trigger showpte without any lock. If another thread in the same process...

EUVD-2026-81964

In the Linux kernel, the following vulnerability has been resolved: ARM: 9485/1: mm: acquire mmap write lock around showpte for user faults When CONFIGDEBUGUSER=y, and cmdline "userdebug=31" is set, a user fault may trigger showpte without any lock. If another thread in the same process...

CVE-2026-90269 bpf: Reject load-acquire from pointers requiring fault protection

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject load-acquire from pointers requiring fault protection A BPFLOADACQ is not rewritten to a BPFPROBEMEM load by the verifier, unlike a regular BPFLDX, so the JIT emits a plain load with no exception table entry and a fau...

EUVD-2026-81862

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject load-acquire from pointers requiring fault protection A BPFLOADACQ is not rewritten to a BPFPROBEMEM load by the verifier, unlike a regular BPFLDX, so the JIT emits a plain load with no exception table entry and a fau...

CVE-2026-90269 bpf: Reject load-acquire from pointers requiring fault protection

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject load-acquire from pointers requiring fault protection A BPFLOADACQ is not rewritten to a BPFPROBEMEM load by the verifier, unlike a regular BPFLDX, so the JIT emits a plain load with no exception table entry and a fau...

CVE-2026-90269

CVE-2026-90269 affects the Linux kernel BPF subsystem. The verifier fails to rewrite BPF_LOAD_ACQ (load-acquire) into a BPF_PROBE_MEM load, unlike a regular BPF_LDX . As a result, the JIT emits a plain load with no exception-table entry, so a page fault on that load panics the kernel instead of b...

EUVD-2026-81857

In the Linux kernel, the following vulnerability has been resolved: btrfs: always wait for ordered extents to avoid OE races BUG Syzbot reported a bug that there can be conflicting OEs for the same range: BTRFS critical device loop4: panic in insertorderedextent:264: overlapping ordered extents,...

CVE-2026-90264

CVE-2026-90264 is a race condition in the Linux kernel's btrfs filesystem that can cause a kernel BUG/panic . The bug occurs when a direct IO finishes short: the file's isize is reverted, which skips the ordered extent (OE) wait during subsequent buffered writeback. This allows a new OE to be ins...

CVE-2026-90264 btrfs: always wait for ordered extents to avoid OE races

In the Linux kernel, the following vulnerability has been resolved: btrfs: always wait for ordered extents to avoid OE races BUG Syzbot reported a bug that there can be conflicting OEs for the same range: BTRFS critical device loop4: panic in insertorderedextent:264: overlapping ordered extents,...

CVE-2026-90264 btrfs: always wait for ordered extents to avoid OE races

In the Linux kernel, the following vulnerability has been resolved: btrfs: always wait for ordered extents to avoid OE races BUG Syzbot reported a bug that there can be conflicting OEs for the same range: BTRFS critical device loop4: panic in insertorderedextent:264: overlapping ordered extents,...

CVE-2026-90192 mailbox: qcom-cpucp: handle NULL data in send_data callback

In the Linux kernel, the following vulnerability has been resolved: mailbox: qcom-cpucp: handle NULL data in senddata callback mailboxclearchannel calls mboxsendmessage with NULL data to notify the remote side that the RX channel has been cleared. qcomcpucpmboxsenddata blindly dereferenced the da...

EUVD-2026-81785

In the Linux kernel, the following vulnerability has been resolved: mailbox: qcom-cpucp: handle NULL data in senddata callback mailboxclearchannel calls mboxsendmessage with NULL data to notify the remote side that the RX channel has been cleared. qcomcpucpmboxsenddata blindly dereferenced the da...

CVE-2026-90192 mailbox: qcom-cpucp: handle NULL data in send_data callback

In the Linux kernel, the following vulnerability has been resolved: mailbox: qcom-cpucp: handle NULL data in senddata callback mailboxclearchannel calls mboxsendmessage with NULL data to notify the remote side that the RX channel has been cleared. qcomcpucpmboxsenddata blindly dereferenced the da...

CVE-2026-90192

CVE-2026-90192 affects the Linux kernel 's Qualcomm qcom-cpucp mailbox driver. The root cause is a NULL pointer dereference in qcom_cpucp_mbox_send_data(), which blindly dereferenced the data pointer when mailbox_clear_channel() invoked mbox_send_message() with NULL data to signal an RX channel c...

EUVD-2026-81722

In the Linux kernel, the following vulnerability has been resolved: virtioballoon: quiesce balloon work before device shutdown Commit 8bd2fa086a04 "virtio: break and reset virtio devices on deviceshutdown" added a generic virtio bus .shutdown handler that breaks and resets every virtio device...

CVE-2026-90083

CVE-2026-90083 affects the Linux kernel's net/sched act_ife (IFE) traffic control action. The IFE action uses skb->dev->hard_header_len as the Ethernet header length, which is incorrect on non-Ethernet devices (e.g., PPP reports PPP_HDRLEN while nothing is stripped on ingress). When a packe...

EUVD-2026-81920

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: restore NETIPALIGN in the RX DMA offset Since the RX path was converted to zero-copy, the page pool page is handed to the stack directly as the skb head, and the offset the DMA engine writes at is what determines the...

CVE-2026-90059 net: stmmac: restore NET_IP_ALIGN in the RX DMA offset

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: restore NETIPALIGN in the RX DMA offset Since the RX path was converted to zero-copy, the page pool page is handed to the stack directly as the skb head, and the offset the DMA engine writes at is what determines the...

CVE-2026-90059 net: stmmac: restore NET_IP_ALIGN in the RX DMA offset

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: restore NETIPALIGN in the RX DMA offset Since the RX path was converted to zero-copy, the page pool page is handed to the stack directly as the skb head, and the offset the DMA engine writes at is what determines the...