Red Hat Security Advisory: kernel-rt security update

Fixed packages 28

Vulnerabilities 7

• Critical 9.8
  CVE-2025-38527

  smb: client: fix use-after-free in cifs_oplock_break

  In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free in cifs_oplock_break A race condition can occur in cifs_oplock_break() leading to a use-after-free of the cinode structure when unmounting: cifs_oplock_break()…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Aug 16, 2025
• High 7.8
  CVE-2022-50087

  firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails

  In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails When scpi probe fails, at any point, we need to ensure that the scpi_info is not set and will remain NULL until the pro…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jun 18, 2025
• High 7.8
  CVE-2025-37823

  net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too

  In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too Similarly to the previous patch, we need to safe guard hfsc_dequeue() too. But for this one, we don't have a reliable reproducer.

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 8, 2025
• High 7.8
  CVE-2025-37914

  net_sched: ets: Fix double list add in class with netem as child qdisc

  In the Linux kernel, the following vulnerability has been resolved: net_sched: ets: Fix double list add in class with netem as child qdisc As described in Gerrard's report [1], there are use cases where a netem child qdisc will make the parent qdisc's enqueue…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 20, 2025
• High 7.8
  CVE-2025-38498

  do_change_type(): refuse to operate on unmounted/not ours mounts

  In the Linux kernel, the following vulnerability has been resolved: do_change_type(): refuse to operate on unmounted/not ours mounts Ensure that propagation settings can only be changed for mounts located in the caller's mount namespace. This change aligns pe…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 30, 2025
• Unscored —
  CVE-2025-37810

  usb: dwc3: gadget: check that event count does not exceed event buffer length

  In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: gadget: check that event count does not exceed event buffer length The event count is read from register DWC3_GEVNTCOUNT. There is a check for the count being zero, but not for exc…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 8, 2025
• Unscored —
  CVE-2025-38200

  i40e: fix MMIO write access to an invalid page in i40e_clear_hw

  In the Linux kernel, the following vulnerability has been resolved: i40e: fix MMIO write access to an invalid page in i40e_clear_hw When the device sends a specific input, an integer underflow can occur, leading to MMIO write access to an invalid page. Preven…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jul 4, 2025

References

• article
  https://access.redhat.com/security/updates/classification/#moderate
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2365024
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2365028
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2367500
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2373539
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2376392
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2384422
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2388928
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_18098.json
• report
  https://access.redhat.com/security/cve/CVE-2022-50087
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-50087
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-50087
• article
  https://lore.kernel.org/linux-cve-announce/2025061859-CVE-2022-50087-53b1@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-37810
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-37810
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-37810
• article
  https://lore.kernel.org/linux-cve-announce/2025050816-CVE-2025-37810-57c4@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-37823
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-37823
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-37823
• article
  https://lore.kernel.org/linux-cve-announce/2025050821-CVE-2025-37823-d739@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-37914
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-37914
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-37914
• article
  https://lore.kernel.org/linux-cve-announce/2025052000-CVE-2025-37914-1a4f@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-38200
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38200
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38200
• article
  https://lore.kernel.org/linux-cve-announce/2025070418-CVE-2025-38200-47d9@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-38498
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38498
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38498
• article
  https://lore.kernel.org/linux-cve-announce/2025073029-CVE-2025-38498-e3ab@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-38527
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38527
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38527
• article
  https://lore.kernel.org/linux-cve-announce/2025081654-CVE-2025-38527-c389@gregkh/T