CVE-2026-64416

CVE-2026-64416 is a Linux kernel vulnerability affecting the memory management subsystem (mm) where a NULL dereference can occur in swap_cgroup handling on swapless hosts. The root cause is that lookup_swap_cgroup_id() may pass swap_cgroup_ctrl[type].map to __swap_cgroup_id_lookup() without verif...

CVE-2026-64415

CVE-2026-64415 is a Linux kernel vulnerability resolved by inserting periodic cond_resched() calls in mm/swap/swapon_reclaim_full_clusters to prevent softlockups. The issue manifested as a long-running softlockup under heavy memory/swap stress on large arm64 systems (e.g., 320 CPUs, ~1 TB RAM, ~8...

CVE-2026-64414

CVE-2026-64414 : In the Linux kernel, the netfilter path handling unreadable fragments has been resolved. The issue arises when an skb with unreadable fragments (eg, from devmem TCP) is processed by the u32 module, causing skb_copy_bits() to return a negative error code. Mitigations described acr...

CVE-2026-64413

CVE-2026-64413 relates to the Linux kernel netfilter/ebtables path, specifically the zero chainstack array issue. The advisory describes that if cpu_possible_mask is sparse (e.g., CPU 0 and CPU 2 possible, CPU 1 not), the allocation loop can skip an entry and, if vmalloc_node() fails later, the c...

CVE-2026-64412

The CVE-2026-64412 issue affects the Linux kernel’s netfilter ebtables component, where module names must be null-terminated. The root cause is failing to explicitly check length, which could allow passing a non-null terminated string to request_module(), potentially enabling a local impact as de...

CVE-2026-64411

Linux kernel vulnerability CVE-2026-64411 affects netfilter/ebtables: update_counters() and compat_update_counters() pass a 32-byte user-supplied table name to find_table_lock() without NUL-termination, allowing vsnprintf() to read past the name and trigger a KASAN stack-out-of-bounds condition. ...

CVE-2026-64410

The CVE-2026-64410 entry concerns the Linux kernel netfilter flowtable for IPIP tunnels where hardware offload is not yet supported. The provided descriptions indicate that no driver supports IPIP tunnels for offload, and a stub has been added to handle unsupported configurations by enqueueing wo...

CVE-2026-64409

The CVE-2026-64409 issue concerns the Linux kernel Bluetooth btmtksdio driver. The problem is an infinite loop in btmtksdio_txrx_work() caused by incorrect timeout logic using time_is_before_jiffies, which can cause the loop to continue after a 5HZ threshold and prevent releasing the SDIO host, y...

CVE-2026-64408

The CVE concerns the Linux kernel Bluetooth BNEP path: during netdev registration, bnep_add_connection() reads the L2CAP connection without holding the channel lock, and passes the HCI device to register_netdev() while a controller teardown could clear the connection. The published fix is to take...

CVE-2026-64407

CVE-2026-64407 concerns the Linux kernel Bluetooth driver btnxpuart. The vulnerability arises during the v3 firmware download: a controller can request firmware with a 32‑bit offset and 16‑bit length, and nxp_recv_fw_req_v3() only validates the lower bound. It computes an offset and uses it to re...

CVE-2026-64405

CVE-2026-64405 affects the Linux kernel Bluetooth subsystem (HCI). The vulnerability arises when hci_abort_conn() reads hdev->sent_cmd during a pending connection, where sent_cmd can be NULL (req_status == HCI_REQ_PEND), causing a NULL pointer dereference. The fix introduces a per-connection H...

CVE-2026-64406

CVE-2026-64406 affects the Linux kernel Bluetooth subsystem. Multiple vendors report a use-after-free in bt_accept_dequeue() where a temporary reference to the accept queue is dropped too early, causing sock_hold() to access freed memory during listening L2CAP socket cleanup. The fix retains the ...

CVE-2026-64404

CVE-2026-64404 concerns the Linux kernel Bluetooth ISO stack. The vulnerability arises in iso_conn_big_sync(): it drops the socket lock to call hci_get_route(), then re-acquires the lock but may dereference iso_pi(sk)->conn->hcon without re-checking that conn is still valid. While the lock ...

CVE-2026-64402

CVE-2026-64402 concerns the Linux kernel coresight ultrasoc-smb path: an OOB write in smb_sync_perf_buffer() can occur when the SMB sink is used as a perf AUX sink because the initial page index is derived before applying modulo normalization to the buffer size. The issue is fixed by normalizing ...

CVE-2026-64403

CVE-2026-64403 covers a Linux kernel Bluetooth L2CAP bug. l2cap_get_conf_opt() derives the option length from opt->len and dereferences opt->val before ensuring the buffer contains opt->len bytes, allowing an out-of-bounds read (up to 4 bytes) before a check. Callers detect malformed opt...

CVE-2026-64401

CVE-2026-64401 affects the Linux kernel SMB/CIFS client. The bug occurs in cifs_swn_notify() which, under cifs_swnreg_idr_mutex, uses a cached tcon pointer that is not a stable reference, risking use-after-free when multiple tcons exist for a net/share. A same-share mount can keep the registratio...

CVE-2026-64400

Summary (CVE-2026-64400) : In the Linux kernel’s ksmbd component, a path traversal bypass could occur due to a caseless retry bug. Specifically, __ksmbd_vfs_kern_path() could skip -EXDEV (a path traversal error) and falsely proceed to a caseless retry, permitting write-capable users to create zer...

CVE-2026-64398

CVE-2026-64398 affects the Linux kernel ksmbd component. A permission check bypass in FSCTL_SET_ZERO_DATA allows an authenticated SMB client with only FILE_WRITE_ATTRIBUTES to zero out file data via fsctl path, bypassing per-handle checks. The operation uses vfs_fallocate(PUNCH_HOLE/ZERO_RANGE) a...

CVE-2026-64399

Summary: CVE-2026-64399 affects the Linux kernel ksmbd path for FSCTL_DUPLICATE_EXTENTS_TO_FILE. The vulnerability allows overwriting a destination file’s data via vfs_clone_file_range() because both the share-level KSMBD_TREE_CONN_FLAG_WRITABLE check and a per-handle daccess check were absent, a...

CVE-2026-64397

CVE-2026-64397 affects the Linux kernel ksmbd component. The issue arises in smb2_query_dir() which stores a pointer to stack-allocated private data in ksmbd_file readdir_data; concurrent QUERY_DIRECTORY requests using the same file handle can overwrite this pointer while an iterate_dir() callbac...

CVE-2026-64395

Summary: CVE-2026-64395 in the Linux kernel ksmbd exposes information disclosure via FSCTL_DUPLICATE_EXTENTS_TO_FILE. The source file is passed directly to vfs_clone_file_range() / vfs_copy_file_range() without checking the SMB access mask, enabling a handle opened with attribute access to copy c...

CVE-2026-64396

CVE-2026-64396 concerns the Linux kernel ksmbd subsystem. A use-after-free (UAF) of a struct file_lock can occur during SMB2_LOCK deferred-lock cancellation when a blocking byte-range lock is deferred and the asynchronous work is canceled concurrently. The root cause is a race between de‑queuing ...

CVE-2026-64393

The CVE-2026-64393 issue affects the Linux kernel ksmbd component. SMB2 SET_INFO handlers performed path-based VFS checks using the current ksmbd worker credentials rather than the credentials that opened the handle, potentially bypassing security checks. The fix captures the opener credentials a...

CVE-2026-64394

Summary: CVE-2026-64394 relates to the Linux kernel ksmbd SMB2 SET_INFO SECURITY path. The fix adds a per-handle access gate to prevent rewriting security descriptors when the handle lacks WRITE_DAC/WRITE_OWNER. Previously, SMB2_SET_INFO with InfoType SMB2_O_INFO_SECURITY could re-permission a fi...

CVE-2026-64392

The CVE-2026-64392 entry concerns the Linux kernel ksmbd delete-on-close path. The underlying issue was that delete-on-close could execute unlink and ADS xattr removal with ksmbd worker credentials rather than the credentials captured at file open, allowing potential permission checks bypass. The...

CVE-2026-64391

The CVE-2026-64391 issue affects the Linux kernel ksmbd component, where alternate data streams (ADS) stored as xattrs were read/written using current task credentials via VFS xattr paths. The root cause is that ADS I/O did not use the credentials captured when the SMB handle was opened, allowing...

CVE-2026-64390

The CVE-2026-64390 issue affects the Linux kernel ksmbd component where SMB2_LOCK locks are tracked on the file lock list and the lock list of the handling connection. With SMB3 multichannel, the LOCK owner can differ from the file opener, so a lock entry can be removed under a different spinlock...

CVE-2026-64389

Summary: CVE-2026-64389 affects the Linux kernel KSMD (ksmbd) SMB3 multichannel binding path. The code derives the NTLMv2 session key into sess->sess_key during ksmbd_auth_ntlmv2(), before validating the NTLMv2 response. If authentication fails, the subsequent KEY_XCH step may still use the (p...

CVE-2026-64388

Summary: CVE-2026-64388 affects the Linux kernel SMB client when using SMB3 POSIX Extensions, where chown/chgrp updates could be ignored unless CIFS_MOUNT_CIFS_ACL or CIFS_MOUNT_MODE_FROM_SID are also set. The root cause is a missing check for posix_extensions in cifs_setattr_nounix() during UID/...

CVE-2026-64387

Summary (CVE-2026-64387) : The Linux kernel SMB client is affected by a replay-double-free condition in query directory handling. If SMB2_query_directory_init() fails before the next send, a previously freed response buffer could be freed again due to stale bookkeeping, potentially compromising c...

CVE-2026-64386

CVE-2026-64386 : In the Linux kernel SMB client, a replayable error could free the prior response buffer when SMB2_query_info_init() fails before the next send, causing a double-free. The fix resets response bookkeeping before each attempt to prevent stale frees. Affected component is the SMB cli...

CVE-2026-64385

The CVE-2026-64385 entry relates to a Linux kernel SMB client double-free in SMB2_ioctl() replay. The underlying issue is a stale buffer being freed twice when an SMB2_ioctl_init() path fails before the next send; the fix resets response bookkeeping before each attempt to prevent the stale free. ...

CVE-2026-64384

CVE-2026-64384 is a Linux kernel SMB client vulnerability involving a double-free in handling change-notify replayed responses. A failure of SMB2_notify_init() after a replayable error could cause the previous response buffer to be freed again, risking memory corruption and potential denial of se...

CVE-2026-64383

CVE-2026-64383 affects the Linux kernel’s SMB2 client path, specifically the SMB2_flush() replay handling. The issue arises when a replayable flush response is received and a retry fails before a replacement response is stored, causing a second free of the stale buffer due to persistent bookkeepi...

CVE-2026-64381

The CVE-2026-64381 issue is in the Linux kernel SMB client code path used by receive_encrypted_standard()/receive encrypted standard(): a next_buffer is allocated before validating that the number of compound PDUs has not exceeded MAX_COMPOUND. If the limit check fails, the function returns early...

CVE-2026-64382

CVE-2026-64382 describes a Linux kernel SMB client-use-after-free issue in SMB2_open() replay handling. The vulnerability arises because a response-bearing SMB2_open attempt could return a replayable error and free its response buffer; if SMB2_open_init() fails before the next send, cleanup may f...

CVE-2026-64380

The CVE-2026-64380 issue affects the Linux kernel SMB client path handling of POSIX SIDs. The root cause is in posix_info_sid_size(), which reads sid[1] to obtain the subauthority count but previously allowed buffers with only one remaining byte, potentially enabling unsafe rejection of truncated...

CVE-2026-64378

CVE-2026-64378 is a Linux kernel race between cgroup_writeback_umount() and inode_switch_wbs()/cleanup_offline_cgwb() triggered when a container exits. The root cause is a window between inode_prepare_wbs_switch() returning true and wb_queue_isw(), which can lead to a VFS: Busy inodes after unmou...

CVE-2026-64379

The CVE-2026-64379 issue affects the Linux kernel SMB client: when modefromsid is active, parse_dacl() could apply the server-provided NFS mode SID sub_auth[2] to cf_mode without masking to 07777. The root cause is missing masking in cf_mode; the fix applies the correct masking (07777) the same a...

CVE-2026-64377

In the Linux kernel, the cpufreq: qcom-cpufreq-hw driver has a double-free fix. qcom_cpufreq.data is allocated with devm_kzalloc() as a per-domain array, and qcom_cpufreq_hw_cpu_init() stores a pointer to an element in policy->driver_data. The driver’s exit path previously invoked kfree() on p...

CVE-2026-64376

CVE-2026-64376 affects the Linux kernel firmware_loader: in firmware_upload_register(), after fw_create_instance() succeeds, a failure path frees fw_sysfs without balancing the embedded device reference, risking a refcount leak of the embedded struct device. The recommended fix is to use put_devi...

CVE-2026-64374

CVE-2026-64374 concerns the Linux kernel’s RT scheduling path. The vulnerability stems from making RT_PUSH_IPI default off for non-PREEMPT_RT configurations, which could affect RT migration when high-priority RT tasks are scheduled across CPUs. The mechanism normally pulls RT tasks between CPUs u...

CVE-2026-64375

In CVE-2026-64375, the Linux kernel fix addresses a race in ptrace access checks. Previously proc_pid_get_link() and proc_pid_readlink() looked up the task from the pid twice (before and after the check). The patch passes the task to the ->proc_get_link() handler and adds call_proc_get_link() ...

CVE-2026-64373

The issue CVE-2026-64373 affects the Linux kernel cpufreq subsystem. During system reboot, cpufreq_suspend() is invoked via kernel_restart() where freeze_processes() is not called, allowing CPU hotplug to run concurrently and potentially free governor_data while cpufreq_suspend() accesses it. Thi...

CVE-2026-64372

Summary: CVE-2026-64372 affects the Linux kernel cpufreq/pcc OSC evaluation path. The defect arises in pcc_cpufreq_do_osc(), which calls acpi_evaluate_object() twice for the two‑phase _OSC negotiation. Between the calls, output.pointer is freed while output.length remains, causing the second call...

CVE-2026-64370

The CVE-2026-64370 issue concerns the Linux kernel’s posix-cpu-timers. In do_cpu_nanosleep(), posix_cpu_timer_create() takes a pid reference via get_pid() and stores it in timer.it.cpu.pid. If posix_cpu_timer_set() fails, the function returns without calling posix_cpu_timer_del(), causing a pid r...

CVE-2026-64371

The CVE-2026-64371 entry concerns a Linux kernel procfs issue where ptrace_may_access() was called without exec_update_lock. The vulnerability has been resolved by ensuring proper locking or using mm_access(): affected paths include do_task_stat(), proc_pid_wchan(), proc_map_files_lookup(), proc_...

CVE-2026-64369

CVE-2026-64369 concerns the Linux kernel on s390 where load_unaligned_zeropad() may read eight bytes from unaligned addresses and cross page boundaries. When memory is donated to Ultravisor for secure execution, do_secure_storage_access() can mis-handle exceptions, potentially causing an endless ...

CVE-2026-64368

The CVE-2026-64368 issue affects the Linux kernel’s slab allocator: when red zoning is enabled, zeroing was overly broad and could affect krealloc()’s __GFP_ZERO contract. The root cause is an imprecise check for the tracked requested size; fixes switch to slub_debug_orig_size() to determine if t...

CVE-2026-64367

CVE-2026-64367 : Linux kernel HID GOODIX SPI driver (hid-goodix-spi) vulnerability where goodix_hid_set_raw_report() copies payload into a 128-byte stack buffer without proper bounds checking. The header is ~11–12 bytes, and the HID core caps at HID_MAX_BUFFER_SIZE (16384) by default, but the dri...