Red Hat Security Advisory: kernel security update

Fixed packages 160

Vulnerabilities 6

• Critical 9.8
  CVE-2025-40176

  tls: wait for pending async decryptions if tls_strp_msg_hold fails

  In the Linux kernel, the following vulnerability has been resolved: tls: wait for pending async decryptions if tls_strp_msg_hold fails Async decryption calls tls_strp_msg_hold to create a clone of the input skb to hold references to the memory it uses. If we …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Nov 12, 2025
• High 8.8
  CVE-2025-39806

  HID: multitouch: fix slab out-of-bounds access in mt_report_fixup()

  In the Linux kernel, the following vulnerability has been resolved: HID: multitouch: fix slab out-of-bounds access in mt_report_fixup() A malicious HID device can trigger a slab out-of-bounds during mt_report_fixup() by passing in report descriptor smaller th…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Sep 16, 2025
• High 8.8
  CVE-2025-39983

  Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue This fixes the following UAF caused by not properly locking hdev when processing HCI_EV_NUM_COMP_PKTS: BUG: KASAN: slab-use-after-free in …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Oct 15, 2025
• High 7.8
  CVE-2025-23142

  sctp: detect and prevent references to a freed transport in sendmsg

  In the Linux kernel, the following vulnerability has been resolved: sctp: detect and prevent references to a freed transport in sendmsg sctp_sendmsg() re-uses associations and transports when possible by doing a lookup based on the socket endpoint and the mes…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 1, 2025
• High 7.8
  CVE-2025-39981

  Bluetooth: MGMT: Fix possible UAFs

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix possible UAFs This attemps to fix possible UAFs caused by struct mgmt_pending being freed while still being processed like in the following trace, in order to fix mgmt_pe…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Oct 15, 2025
• Unscored —
  CVE-2025-68287

  usb: dwc3: Fix race condition between concurrent dwc3_remove_requests() call paths

  In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: Fix race condition between concurrent dwc3_remove_requests() call paths This patch addresses a race condition caused by unsynchronized execution of multiple call paths invoking `dw…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Dec 16, 2025

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2363300
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2395807
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2404105
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2404117
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2414524
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2422788
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_0457.json
• report
  https://access.redhat.com/security/cve/CVE-2025-23142
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-23142
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-23142
• article
  https://lore.kernel.org/linux-cve-announce/2025050124-CVE-2025-23142-ac59@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-39806
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-39806
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-39806
• article
  https://lore.kernel.org/linux-cve-announce/2025091613-CVE-2025-39806-f74d@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-39981
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-39981
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-39981
• article
  https://lore.kernel.org/linux-cve-announce/2025101559-CVE-2025-39981-fe1d@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-39983
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-39983
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-39983
• article
  https://lore.kernel.org/linux-cve-announce/2025101500-CVE-2025-39983-eb8b@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-40176
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-40176
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-40176
• article
  https://lore.kernel.org/linux-cve-announce/2025111255-CVE-2025-40176-f2e3@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-68287
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-68287
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-68287
• article
  https://lore.kernel.org/linux-cve-announce/2025121638-CVE-2025-68287-5647@gregkh/T