Important: kernel security, bug fix, and enhancement update

Summary

Fixed packages 75

Vulnerabilities 29

• Critical 9.8
  CVE-2026-64037

  wifi: iwlwifi: mld: fix TSO segmentation explosion when AMSDU is disabled

  In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mld: fix TSO segmentation explosion when AMSDU is disabled When the TLC notification disables AMSDU for a TID, the MLD driver sets max_tid_amsdu_len to the sentinel value 1. Th…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 19, 2026
• Critical 9.8
  CVE-2026-64113

  ixgbevf: fix use-after-free in VEPA multicast source pruning

  In the Linux kernel, the following vulnerability has been resolved: ixgbevf: fix use-after-free in VEPA multicast source pruning ixgbevf_clean_rx_irq() prunes frames whose source MAC matches the VF's own address (VEPA multicast workaround) by freeing the skb …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 19, 2026
• Critical 9.8
  CVE-2026-72098

  dm-verity: fix buffer overflow in FEC calculation

  In the Linux kernel, the following vulnerability has been resolved: dm-verity: fix buffer overflow in FEC calculation There's a buffer overflow in dm-verity-fec: if (neras && *neras <= v->fec->roots) fio->erasures[(*neras)++] = i; This allows *neras to reach …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Aug 15, 2026
• Critical 9.8
  CVE-2026-72129

  nvmet-rdma: handle inline data with a nonzero offset

  In the Linux kernel, the following vulnerability has been resolved: nvmet-rdma: handle inline data with a nonzero offset nvmet_rdma_use_inline_sg() maps the host-controlled inline data offset into the per-command inline scatterlist. The bounds check admits an…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Aug 15, 2026
• High 8.8
  CVE-2026-43334

  Bluetooth: SMP: force responder MITM requirements before building the pairing response

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SMP: force responder MITM requirements before building the pairing response smp_cmd_pairing_req() currently builds the pairing response from the initiator auth_req before enforcing…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 8, 2026
• High 8.8
  CVE-2026-52918

  Bluetooth: serialize accept_q access

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: serialize accept_q access bt_sock_poll() walks the accept queue without synchronization, while child teardown can unlink the same socket and drop its last reference. The unsynchron…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 24, 2026
• High 8.8
  CVE-2026-53072

  Bluetooth: fix locking in hci_conn_request_evt() with HCI_PROTO_DEFER

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix locking in hci_conn_request_evt() with HCI_PROTO_DEFER When protocol sets HCI_PROTO_DEFER, hci_conn_request_evt() calls hci_connect_cfm(conn) without hdev->lock. Generally hci_…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jun 24, 2026
• High 8.8
  CVE-2026-53322

  vfio/pci: Clean up DMABUFs before disabling function

  In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Clean up DMABUFs before disabling function On device shutdown, make vfio_pci_core_close_device() call vfio_pci_dma_buf_cleanup() before the function is disabled via vfio_pci_core_di…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jun 26, 2026
• High 8.8
  CVE-2026-63944

  Bluetooth: hci_sync: fix UAF in hci_le_create_cis_sync

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: fix UAF in hci_le_create_cis_sync hci_le_create_cis_sync() dereferences conn->conn_timeout after releasing both rcu_read_lock() and hci_dev_lock(hdev). The conn pointer w…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 19, 2026
• High 8.8
  CVE-2026-63946

  Bluetooth: ISO: fix UAF in iso_recv_frame

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix UAF in iso_recv_frame iso_recv_frame reads conn->sk under iso_conn_lock but releases the lock before using sk, with no reference held. A concurrent iso_sock_kill() can fre…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 19, 2026
• High 8.8
  CVE-2026-63947

  Bluetooth: HIDP: fix missing length checks in hidp_input_report()

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: fix missing length checks in hidp_input_report() hidp_input_report() reads keyboard and mouse payload data from an skb without first verifying that skb->len contains enough d…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 19, 2026
• High 8.8
  CVE-2026-63975

  Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp If dcid is received for an already-assigned destination CID the spec requires that both channels to be discarded, but calling l2ca…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 19, 2026
• High 8.8
  CVE-2026-64042

  vfio/pci: Check BAR resources before exporting a DMABUF

  In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Check BAR resources before exporting a DMABUF A DMABUF exports access to BAR resources and, although they are requested at startup time, we need to ensure they really were reserved …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 19, 2026
• High 8.8
  CVE-2026-64117

  wifi: mac80211: capture fast-RX rate before mesh reuses skb->cb

  In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: capture fast-RX rate before mesh reuses skb->cb ieee80211_invoke_fast_rx() reads RX status through IEEE80211_SKB_RXCB(skb), which aliases the same skb->cb storage that ieee802…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jul 19, 2026
• High 8.8
  CVE-2026-64255

  wifi: iwlwifi: mld: validate sta_mask before ffs() in BA session handlers

  In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mld: validate sta_mask before ffs() in BA session handlers Three BA session handlers use ffs(ba_data->sta_mask) - 1 to derive a station ID without checking that sta_mask is non…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jul 24, 2026
• High 8.8
  CVE-2026-68409

  wifi: mac80211: defer link RX stats percpu free to RCU

  In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: defer link RX stats percpu free to RCU sta_remove_link() frees a removed MLO link's RX stats percpu buffer right away, but defers only the link container to RCU: sta_info_free…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Aug 10, 2026
• High 8.4
  CVE-2026-53091

  net: pull headers in qdisc_pkt_len_segs_init()

  In the Linux kernel, the following vulnerability has been resolved: net: pull headers in qdisc_pkt_len_segs_init() Most ndo_start_xmit() methods expects headers of gso packets to be already in skb->head. net/core/tso.c users are particularly at risk, because …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 24, 2026
• High 8.3
  CVE-2026-64515

  wifi: mac80211: fix MLE defragmentation

  In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix MLE defragmentation If either reconf or EPCS multi-link element (MLE) is contained in a non-transmitted profile, the defragmentation routine is called with a pointer to th…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 25, 2026
• High 8.1
  CVE-2026-53254

  Bluetooth: RFCOMM: validate skb length in MCC handlers

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: validate skb length in MCC handlers The RFCOMM MCC handlers cast skb->data to protocol-specific structs without validating skb->len first. A malicious remote device can sen…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 25, 2026
• High 8.0
  CVE-2026-53256

  Bluetooth: RFCOMM: hold listener socket in rfcomm_connect_ind()

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: hold listener socket in rfcomm_connect_ind() rfcomm_get_sock_by_channel() scans rfcomm_sk_list under the list lock, but returns the selected listener after dropping that lo…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 25, 2026
• High 7.9
  CVE-2026-43133

  KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation

  In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation Commit cc3ed80ae69f ("KVM: nSVM: always use vmcb01 to for vmsave/vmload of guest state") made KVM always use vmcb01 for the fields cont…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 6, 2026
• High 7.8
  CVE-2026-52947

  net: qrtr: fix refcount saturation and potential UAF in qrtr_port_remove

  In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix refcount saturation and potential UAF in qrtr_port_remove In qrtr_port_remove(), the socket reference count is decremented via __sock_put() before the port is removed from the …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 24, 2026
• High 7.8
  CVE-2026-53182

  wifi: nl80211: reject oversized EMA RNR lists

  In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: reject oversized EMA RNR lists nl80211_parse_rnr_elems() stores the parsed element count in a u8-backed cfg80211_rnr_elems::cnt field and uses that count to size the flexible a…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 25, 2026
• High 7.8
  CVE-2026-53209

  Bluetooth: hci_sync: reject oversized Broadcast Announcement prepend

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: reject oversized Broadcast Announcement prepend Existing advertising instances can already hold the maximum extended advertising payload. When hci_adv_bcast_annoucement()…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 25, 2026
• High 7.8
  CVE-2026-64015

  security/keys: fix missed RCU read section on lookup

  In the Linux kernel, the following vulnerability has been resolved: security/keys: fix missed RCU read section on lookup Nicholas Carlini reports that the keyring code calls assoc_array_find() in find_key_to_update() without holding the RCU read lock, while t…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 19, 2026
• High 7.8
  CVE-2026-64051

  accel/qaic: Add overflow check to remap_pfn_range during mmap

  In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Add overflow check to remap_pfn_range during mmap The call to remap_pfn_range in qaic_gem_object_mmap is susceptible to (re)mapping beyond the VMA if the BO is too large. This can…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 19, 2026
• High 7.7
  CVE-2026-46123

  Bluetooth: virtio_bt: clamp rx length before skb_put

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: virtio_bt: clamp rx length before skb_put virtbt_rx_work() calls skb_put(skb, len) where len comes directly from virtqueue_get_buf() with no validation against the buffer we posted…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  May 28, 2026
• Unscored —
  CVE-2026-68193

  wifi: mt76: mt7925: drop TXRX_NOTIFY on non-mmio buses

  In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: drop TXRX_NOTIFY on non-mmio buses PKT_TYPE_TXRX_NOTIFY is an mmio-only event, but mt7925_rx_check() and mt7925_queue_rx_skb() dispatch it to mt7925_mac_tx_free() on every…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Aug 10, 2026
• Unscored —
  CVE-2026-68307

  wifi: mt76: mt7925: fix crash in reset link replay

  In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: fix crash in reset link replay During reset recovery, mt7925_vif_connect_iter() replays firmware state for links tracked in mvif->valid_links. After MLO link changes or MC…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Aug 10, 2026

References

• report
  https://access.redhat.com/security/cve/CVE-2026-43133
• report
  https://access.redhat.com/security/cve/CVE-2026-43334
• report
  https://access.redhat.com/security/cve/CVE-2026-46123
• report
  https://access.redhat.com/security/cve/CVE-2026-52918
• report
  https://access.redhat.com/security/cve/CVE-2026-52947
• report
  https://access.redhat.com/security/cve/CVE-2026-53072
• report
  https://access.redhat.com/security/cve/CVE-2026-53091
• report
  https://access.redhat.com/security/cve/CVE-2026-53182
• report
  https://access.redhat.com/security/cve/CVE-2026-53209
• report
  https://access.redhat.com/security/cve/CVE-2026-53254
• report
  https://access.redhat.com/security/cve/CVE-2026-53256
• report
  https://access.redhat.com/security/cve/CVE-2026-53322
• report
  https://access.redhat.com/security/cve/CVE-2026-63944
• report
  https://access.redhat.com/security/cve/CVE-2026-63946
• report
  https://access.redhat.com/security/cve/CVE-2026-63947
• report
  https://access.redhat.com/security/cve/CVE-2026-63975
• report
  https://access.redhat.com/security/cve/CVE-2026-64015
• report
  https://access.redhat.com/security/cve/CVE-2026-64037
• report
  https://access.redhat.com/security/cve/CVE-2026-64042
• report
  https://access.redhat.com/security/cve/CVE-2026-64051
• report
  https://access.redhat.com/security/cve/CVE-2026-64113
• report
  https://access.redhat.com/security/cve/CVE-2026-64117
• report
  https://access.redhat.com/security/cve/CVE-2026-64255
• report
  https://access.redhat.com/security/cve/CVE-2026-64515
• report
  https://access.redhat.com/security/cve/CVE-2026-68193
• report
  https://access.redhat.com/security/cve/CVE-2026-68307
• report
  https://access.redhat.com/security/cve/CVE-2026-68409
• report
  https://access.redhat.com/security/cve/CVE-2026-72098
• report
  https://access.redhat.com/security/cve/CVE-2026-72129
• report
  https://bugzilla.redhat.com/2467065
• report
  https://bugzilla.redhat.com/2468050
• report
  https://bugzilla.redhat.com/2482554
• report
  https://bugzilla.redhat.com/2492092
• report
  https://bugzilla.redhat.com/2492270
• report
  https://bugzilla.redhat.com/2492408
• report
  https://bugzilla.redhat.com/2492432
• report
  https://bugzilla.redhat.com/2492717
• report
  https://bugzilla.redhat.com/2492722
• report
  https://bugzilla.redhat.com/2492762