These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.
A Linux kernel vulnerability, CVE-2026-64044, was resolved. The issue involves ovpn: respect peer refcount in CMD_NEW_PEER error path. The vulnerability arises from ovpn_nl_peer_new_doit()'s error path calling ovpn_peer_release() directly rather than ovpn_peer_put(), bypassing the kref. This affects TCP but not UDP due to differences in how peers are handled.
A race condition vulnerability was found in the Linux kernel's ovpn interface. The vulnerability occurs when deleting an existing ovpn interface and adding a new peer simultaneously, which can cause the netdevice to hang and prevent its unregistration. This issue may impact Linux kernel users who rely on ovpn interfaces for network operations. An attacker could potentially exploit this vulnerability to ca [truncated]
A vulnerability was found in the Linux kernel related to VFIO/Pci. The issue involves checking BAR resources before exporting a DMABUF. A DMABUF exports access to BAR resources, and although they are requested at startup time, there was no check to ensure they were really reserved before exporting. This could allow access to unreserved resources through the export. A check has been added to the DMABUF-cre [truncated]
A potential buffer overflow vulnerability was found in the Linux kernel ASoC codecs fs210x. The vulnerability is due to incorrect usage of the strscpy function in the fs210x_effect_scene_info function. This could lead to a buffer overflow if the length of the source string is greater than or equal to the size of the destination buffer. The CVE record was published on 2026-07-19T16:17:44.367Z and has not b [truncated]
The Linux kernel was found to have a vulnerability in the cachefiles module. When vfs_mkdir() fails, the error code is not properly extracted from the returned error pointer, leading to a potential NULL return instead of a valid error pointer. This issue can have significant implications for system stability and security, as it may allow attackers to exploit the vulnerability and gain unauthorized access [truncated]
CVE-2026-64039 is a vulnerability in the Linux kernel related to the drm/msm/snapshot component. The issue involves the dumping of unaligned regions. According to the provided information, the vulnerability has been resolved through a patch that removes length alignment and accurately prints the last registers in the region. The patch also fixes a 16x memory overallocation issue in the msm_disp_state_dump [truncated]
A Linux kernel vulnerability, CVE-2026-64038, was resolved by stopping work before releasing the hwmon device. The issue arose from the devm action to cancel alert_work and report_work being registered before devm_hwmon_device_register_with_info(). This led to a potential race condition where lm90_alert_work() or lm90_report_alarms() could run after the hwmon device was freed, causing lm90_update_alarms() [truncated]
A vulnerability in the Linux kernel's iwlwifi component has been addressed. The issue occurs when the TLC notification disables AMSDU for a TID, causing the MLD driver to set max_tid_amsdu_len to 1. This leads to a TSO segmentation explosion, resulting in a massive burst of TX completion events that can cause memory corruption and a subsequent use-after-free in TCP's retransmit queue. The MVM driver is no [truncated]
A Linux kernel vulnerability, CVE-2026-64036, was resolved by adding CPU validation to the BPF-facing css_rstat_updated() kfunc. This change prevents BPF iter/cgroup programs with CAP_BPF and CAP_PERFMON from passing invalid CPU values, which could trigger array-index-out-of-bounds errors. The vulnerability affects Linux kernel users and administrators, who should ensure they are running a patched kernel [truncated]
PatchSiren debrief for CVE-2026-64035, a Linux kernel vulnerability resolved by setting the tx buffer type for SMD frames in the igc driver. The vulnerability affects the Linux kernel and has been resolved by setting the tx buffer type for SMD frames in the igc driver. The igc_fpe_init_smd_frame() function initializes igc_tx_buffer fields for an SMD skb but does not set the buffer type, which can cause a [truncated]
A vulnerability was found in the Linux kernel, specifically in the mana_hwc_rx_event_handler() function. The issue arises from a TOCTOU (Time-of-Check-to-Time-of-Use) double-fetch of hwc_msg_id from a DMA buffer. This can lead to a situation where the value is modified between the check and the use, bypassing bounds validation. The vulnerability allows a hardware component to modify the hwc_msg_id value b [truncated]
The Linux kernel has been updated to address a use-after-free vulnerability in the RDMA/rtrs subsystem. The issue arises during the error path of creating path files, where a premature kobject_put() call may lead to srv_path being freed before it is accessed by rtrs_srv_destroy_once_sysfs_root_folders(), resulting in a use-after-free condition. The fix involves reordering the cleanup steps to ensure srv_p [truncated]
A use-after-free vulnerability was found in the Linux kernel when removing a bridge port with per-VLAN multicast snooping enabled. The issue arises from the bridge's handling of per-port and per-{port, VLAN} multicast contexts when toggling global multicast snooping. This could lead to a situation where both types of contexts are enabled on a single bridge port, resulting in a use-after-free when the port [truncated]
A bounds-checking vulnerability exists in the Linux kernel's wifi: mac80211 module. The issue arises from the extraction of link_id from a PRIO_ACCESS ML element PER_STA_PROFILE subelement, which can range from 0 to 15. However, the sdata->link[] array has only 15 entries (indices 0-14), making index 15 out-of-bounds. A connected WiFi 7 AP can trigger this by sending an EPCS Enable Response action frame w [truncated]
The Linux kernel was vulnerable to a use-after-free issue in the ALSA sequencer UMP output teardown. The vulnerability has been resolved by adding a per-client rwlock for the event_input-visible output file. This fix ensures that the output file is not released while an in-flight event_input callback is still inside snd_rawmidi_kernel_write(). The vulnerability was caused by a lack of synchronization betw [truncated]
A Linux kernel vulnerability, CVE-2026-64028, was resolved to prevent NULL returns from hist_field_name() due to snprintf() truncation in the tracing subsystem. This issue could lead to unexpected behavior and dereferences. Linux kernel maintainers, Linux distribution vendors, and users of Linux systems should be aware of this vulnerability and ensure their systems are updated.
A vulnerability was found in the Linux kernel's net: shaper module. Recent changes introduced a race condition, allowing a reader to observe a VALID mark for a slot, get interrupted, and then continue with a different pointer. This may lead to a Use-After-Free (UAF) vulnerability. The issue has been resolved by converting the code to an explicit valid field, ensuring that the smp_load_acquire() / smp_stor [truncated]
The Linux kernel vulnerability CVE-2026-64026 is related to the in-place decryption of DATA packets transmitted locally by splice(). The patch provided extracts packet content into a bounce buffer, which is then decrypted and copied to the destination buffer. This change improves the fix for CVE-2026-43500 and provides better alignment for crypto algorithms. Linux kernel users and administrators should re [truncated]
A use-after-free vulnerability was found in the Linux kernel's BPF (Berkeley Packet Filter) and ktls (kernel TLS) subsystems. The issue arises when a socket is inserted into a sockmap (BPF_SK_SKB_VERDICT) before TLS RX is configured, leading to a potential use-after-free when tls_decrypt_sg() walks the frag_list. The fix applies the same guard as sk_psock_strp_data_ready(): if a TLS RX context is present, [truncated]
The Linux kernel vulnerability CVE-2026-64024 was resolved by moving back tcp_tw_isn to skb->cb[] to prevent stale per-CPU tcp_tw_isn leak, which could lead to predictable ISN. The issue arose from the assumption that the TIME_WAIT-derived ISN would always be consumed by tcp_conn_request() for the same packet that wrote it, which was violated by multiple drop paths. The patch effectively reverts the per-C [truncated]
A use-after-free vulnerability was found in the Linux kernel's gpio aggregator. On error, the code frees aggr->lookups->dev_id before removing the entry from the lookup table, potentially leading to a use-after-free condition when a concurrent thread calls gpiod_find(). This vulnerability could allow an attacker to execute arbitrary code or cause a denial of service. Linux kernel users and maintainers sho [truncated]
The Linux kernel was found to have a vulnerability that has been resolved. The issue involves the gpio aggregator, where a dynamic software node created for the aggregator platform device when using configfs was not properly destroyed when the device was deactivated, leading to a potential leak. This vulnerability affects Linux kernel users who should ensure their systems are updated with the latest kerne [truncated]
A PatchSiren debrief for CVE-2026-64019 based on the supplied source corpus. The CVE record was published on 2026-07-19T16:17:41.907Z and has not been modified since then. This vulnerability affects the Linux kernel, specifically in the nvme-pci component, leading to a DMA mapping leak during data setup errors. The issue was resolved by unmapping the iterator directly when failing to allocate the tracking [truncated]
The Linux kernel has a resolved vulnerability (CVE-2026-64018) that involves an out-of-bounds array access issue in the net: mana component. The vulnerability arises from the lack of bounds checking on rx_req_idx, which is derived from sge->address in DMA-coherent memory. This memory is shared unencrypted in Confidential VMs (SEV-SNP/TDX), allowing HW to modify WQE contents at any time. The issue can lead [truncated]
A Linux kernel vulnerability was resolved by popping a cached request before any possible blocking calls to prevent a use-after-free bug. The fix holds a queue reference to avoid serialization races with queue freezes and allows safe dispatching of the request to the driver. This vulnerability affects Linux kernel users and maintainers, who should be aware of this fix to ensure the security and stability [truncated]
A vulnerability in the Linux kernel has been resolved, which could lead to a critical severity issue if exploited. The vulnerability is related to the ksmbd module and its handling of durable reconnects. When a durable reconnect succeeds, the ksmbd_reopen_durable_fd function republishes the same ksmbd_file into the session volatile-id table. However, if an error occurs later, the cleanup process may not p [truncated]
A vulnerability was found in the Linux kernel's usbtouchscreen module. The issue occurs when the module fails to properly clamp the data_len and x_len values from a packed __be16 header in the device's interrupt packet. This can lead to an out-of-bounds read past the coherent DMA allocation, potentially leaking adjacent kernel memory contents to userspace as ABS_X / ABS_Y events. The vulnerability can be [truncated]
The Linux kernel was vulnerable to a GPE handler leak during ACPI button removal. A fix has been applied via commits 614cb8c and fe802511. This vulnerability could lead to a kernel crash if ACPI notify was triggered after driver removal. Linux kernel maintainers and users should review and apply patches to mitigate this issue. The vulnerability was publicly disclosed and affects Linux kernel versions. Mai [truncated]
A use-after-free vulnerability was found in the Linux kernel's NFC LLCP implementation. The llcp_sock_release() function unconditionally unlinks the socket from the local sockets list, but if the socket is still in the connecting state, it is on the connecting list. This can lead to a use-after-free condition. The vulnerability has a medium defensive priority, and Linux kernel developers and users who rel [truncated]
A use-after-free vulnerability exists in the Linux kernel's NFC LLCP connection state machine. The issue arises when processing the connection acceptance packet (CC) concurrently with socket release, potentially leading to a use-after-free of the socket object. This vulnerability can be triggered by a race condition in the NFC LLCP connection state machine. The connection acceptance packet (CC) can be pro [truncated]