RHSA-2025:13135 - Security Advisory

Topic

An update for kernel is now available for Red Hat Enterprise Linux 9.4 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: powerpc: Fix access beyond end of drmem array (CVE-2023-52451)
• kernel: xhci: handle isoc Babble and Buffer Overrun events properly (CVE-2024-26659)
• kernel: usb: xhci: Add error handling in xhci_map_urb_for_dma (CVE-2024-26964)
• kernel: USB: core: Fix deadlock in usb_deauthorize_interface() (CVE-2024-26934)
• kernel: USB: usb-storage: Prevent divide-by-0 error in isd200_ata_command (CVE-2024-27059)
• kernel: powerpc/pseries: Fix potential memleak in papr_get_attr() (CVE-2022-48669)
• kernel: usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm() (CVE-2023-52877)
• kernel: media: gspca: cpia1: shift-out-of-bounds in set_flicker (CVE-2023-52764)
• kernel: serial: core: fix transmit-buffer reset and memleak (CVE-2021-47527)
• kernel: net/smc: fix neighbour and rtable leak in smc_ib_find_route() (CVE-2024-36945)
• kernel: mm: list_lru: fix UAF for memory cgroup (CVE-2024-43888)
• kernel: um: Fix out-of-bounds read in LDT setup (CVE-2022-49395)
• kernel: media: uvcvideo: Remove dangling pointers (CVE-2024-58002)
• kernel: padata: fix UAF in padata_reorder (CVE-2025-21727)
• kernel: media: uvcvideo: Fix double free in error path (CVE-2024-57980)
• kernel: HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove() (CVE-2025-21928)
• kernel: x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes (CVE-2025-21991)
• kernel: misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram() (CVE-2022-49788)
• kernel: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc (CVE-2025-37890)
• kernel: mm/huge_memory: fix dereferencing invalid pmd migration entry (CVE-2025-37958)
• kernel: net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done (CVE-2025-38052)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.4 x86_64
• Red Hat Enterprise Linux Server - AUS 9.4 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.4 s390x
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.4 ppc64le
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.4 aarch64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 x86_64
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 9.4 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 9.4 ppc64le
• Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 9.4 s390x
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 9.4 aarch64
• Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 aarch64
• Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 s390x

Fixes

• BZ - 2265650 - CVE-2023-52451 kernel: powerpc: Fix access beyond end of drmem array
• BZ - 2272780 - CVE-2024-26659 kernel: xhci: handle isoc Babble and Buffer Overrun events properly
• BZ - 2278169 - CVE-2024-26964 kernel: usb: xhci: Add error handling in xhci_map_urb_for_dma
• BZ - 2278237 - CVE-2024-26934 kernel: USB: core: Fix deadlock in usb_deauthorize_interface()
• BZ - 2278398 - CVE-2024-27059 kernel: USB: usb-storage: Prevent divide-by-0 error in isd200_ata_command
• BZ - 2278537 - CVE-2022-48669 kernel: powerpc/pseries: Fix potential memleak in papr_get_attr()
• BZ - 2282712 - CVE-2023-52877 kernel: usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm()
• BZ - 2282780 - CVE-2023-52764 kernel: media: gspca: cpia1: shift-out-of-bounds in set_flicker
• BZ - 2283424 - CVE-2021-47527 kernel: serial: core: fix transmit-buffer reset and memleak
• BZ - 2284465 - CVE-2024-36945 kernel: net/smc: fix neighbour and rtable leak in smc_ib_find_route()
• BZ - 2307861 - CVE-2024-43888 kernel: mm: list_lru: fix UAF for memory cgroup
• BZ - 2347899 - CVE-2022-49395 kernel: um: Fix out-of-bounds read in LDT setup
• BZ - 2348513 - CVE-2024-58002 kernel: media: uvcvideo: Remove dangling pointers
• BZ - 2348516 - CVE-2025-21727 kernel: padata: fix UAF in padata_reorder
• BZ - 2348599 - CVE-2024-57980 kernel: media: uvcvideo: Fix double free in error path
• BZ - 2356592 - CVE-2025-21928 kernel: HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove()
• BZ - 2356917 - CVE-2025-21991 kernel: x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes
• BZ - 2363378 - CVE-2022-49788 kernel: misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram()
• BZ - 2366848 - CVE-2025-37890 kernel: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc
• BZ - 2367572 - CVE-2025-37958 kernel: mm/huge_memory: fix dereferencing invalid pmd migration entry
• BZ - 2373380 - CVE-2025-38052 kernel: net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done

CVEs

• CVE-2021-47527
• CVE-2022-48669
• CVE-2022-49395
• CVE-2022-49788
• CVE-2023-52451
• CVE-2023-52764
• CVE-2023-52877
• CVE-2024-26659
• CVE-2024-26934
• CVE-2024-26964
• CVE-2024-27059
• CVE-2024-36945
• CVE-2024-43888
• CVE-2024-57980
• CVE-2024-58002
• CVE-2025-21727
• CVE-2025-21928
• CVE-2025-21991
• CVE-2025-37890
• CVE-2025-37958
• CVE-2025-38052

References

• https://access.redhat.com/security/updates/classification/#important