CVE-2026-92516 bpf: Fix offset warn check for bpf_res_spin_lock

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix offset warn check for bpfresspinlock Sashiko pointed out correctly that the case statement for BPFRESSPINLOCK incorrectly checks offset for BPFSPINLOCK. Fix it by checking resspinlockoff instead...

CVE-2026-92496 wifi: ath11k: Avoid buffer overread in ath11k_wmi_tlv_op_rx()

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: Avoid buffer overread in ath11kwmitlvoprx Currently, in ath11kwmitlvoprx, the firmware buffer is read without first verifying that the buffer has enough data to hold a header. This could result in a buffer overread...

CVE-2026-92495 RDMA/bnxt_re: Clear VM_MAYWRITE on DBR/toggle page mmap

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxtre: Clear VMMAYWRITE on DBR/toggle page mmap bnxtremmap rejects VMWRITE for the DBRPAGE and TOGGLEPAGE mmap flags, but a read-only mapping can still retain VMMAYWRITE. nd later be upgraded with mprotectPROTWRITE. This ca...

CVE-2026-90409 drm/panthor: Add vm_bind region with kbo range overlap check

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Add vmbind region with kbo range overlap check When a VM is created, caller has to specify the range of the address space carve-out set aside for mapping kernel BO's. That means vmbind mappings of UM-exposed BO's...

CVE-2026-90409

CVE-2026-90409 affects the Linux kernel drm/panthor driver. The root cause is a missing overlap check: when a VM is created, the caller specifies an address-space carve-out for mapping kernel buffer objects (BOs), yet vm_bind mappings of user-mode-exposed BOs were not verified to stay outside tha...

CVE-2026-90315

CVE-2026-90315 affects the Linux kernel's PCI/sysfs subsystem. The legacy I/O and memory handlers (pci_write_legacy_io() , pci_mmap_legacy_mem() , pci_mmap_legacy_io() ) fail to check security_locked_down(LOCKDOWN_PCI_ACCESS) , leaving the legacy_io and legacy_mem sysfs files unprotected during k...

CVE-2026-90299

CVE-2026-90299 affects the Linux kernel BPF subsystem. When CONFIG_FUNCTION_ERROR_INJECTION is disabled, the BPF verifier fails to distinguish whether an attachment target symbol is a kernel function or a BPF program , allowing a sleepable tracing program to attach to a non-kernel BPF program who...

EUVD-2026-81856

In the Linux kernel, the following vulnerability has been resolved: btrfs: check if root is readonly when setting posix acl For a filesystem which has btrfs read-only property set to true, all write operations including acl and xattr should be denied. However, acl can still be set even if btrfs r...

CVE-2026-90263

CVE-2026-90263 affects the Linux kernel's btrfs filesystem . When the btrfs read-only property is set to true, all write operations including ACL and xattr should be denied. However, POSIX ACLs could still be set because a prior commit (353c2ea735e4) removed a readonly-root check from btrfs_setxa...

CVE-2026-90263 btrfs: check if root is readonly when setting posix acl

In the Linux kernel, the following vulnerability has been resolved: btrfs: check if root is readonly when setting posix acl For a filesystem which has btrfs read-only property set to true, all write operations including acl and xattr should be denied. However, acl can still be set even if btrfs r...

CVE-2026-90227 nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed()

In the Linux kernel, the following vulnerability has been resolved: nvme/ioctl: check SUBMITIO with nvmecmdallowed Unlike IOCMD / IO64CMD, NVMEIOCTLSUBMITIO never calls nvmecmdallowed. Unprivileged callers can thus issue I/O on a partition device or write through a read-only file descriptor. Pass...

CVE-2026-90177 bpf: Check pointer type for all atomic RMW paths

In the Linux kernel, the following vulnerability has been resolved: bpf: Check pointer type for all atomic RMW paths Atomic RMW verification records an instruction pointer type only when the current destination is PTRTOARENA. A second path can therefore reach the same instruction with an ordinary...

EUVD-2026-81769

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Do not skip lock checks for single-byte ranges checklockrange uses inclusive ranges. Its callers pass the end offset as start + length - 1, so start == end represents a valid single-byte range rather than an empty range. T...

CVE-2026-90176

This vulnerability affects the Linux kernel's ksmbd (in-kernel SMB/CIFS server) component. The function check_lock_range() uses inclusive ranges , so start == end represents a valid single-byte range. However, a shortcut incorrectly treats this case as an empty range, skipping mandatory byte-rang...

EUVD-2026-81753

In the Linux kernel, the following vulnerability has been resolved: lwtbpf: Restore reserved headroom after xmit program ipfinishoutput2 expands an skb to LLRESERVEDSPACEdev before LWT xmit. An LWTXMIT BPF program can then modify the skb head and still return BPFOK, so bpfxmit rechecks the...

CVE-2026-90146 bpf, xdp: move offload check into dev_xdp_install()

In the Linux kernel, the following vulnerability has been resolved: bpf, xdp: move offload check into devxdpinstall bpfxdplinkupdate calls devxdpinstall directly and skips devxdpattach, so the checks in devxdpattach do not run. A user can make an XDP link with a normal program and then swap in an...

EUVD-2026-81739

In the Linux kernel, the following vulnerability has been resolved: bpf, xdp: move offload check into devxdpinstall bpfxdplinkupdate calls devxdpinstall directly and skips devxdpattach, so the checks in devxdpattach do not run. A user can make an XDP link with a normal program and then swap in an...

CVE-2026-90146

CVE-2026-90146 is a Linux kernel vulnerability in the BPF/XDP subsystem. The root cause is that bpf_xdp_link_update() calls dev_xdp_install() directly, bypassing the validation checks in dev_xdp_attach(). This allows a local user with low privileges to create an XDP link with a normal program and...

CVE-2026-90146 bpf, xdp: move offload check into dev_xdp_install()

In the Linux kernel, the following vulnerability has been resolved: bpf, xdp: move offload check into devxdpinstall bpfxdplinkupdate calls devxdpinstall directly and skips devxdpattach, so the checks in devxdpattach do not run. A user can make an XDP link with a normal program and then swap in an...

Security Bulletin: Multiple security vulnerabilities are addressed with IBM Content Cortex(CCx) 26.0.0-IF002 for August 2026

Summary IBM Content Cortex CCx 26.0.0-IF002 addresses CVEs across components including AI Services & tools, FDM and CPE. Vulnerability Details CVEID:CVE-2026-69247 DESCRIPTION: cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 44.0.0 unti...