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High ALSA-2026:93412 19 CVEs

Important: kernel security, bug fix, and enhancement update

Published Nov 1, 2026 · Updated Nov 10, 2026

Ecosystem: AlmaLinux

Summary

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

Security Fix(es):

* kernel: sctp: stream: fully roll back denied add-stream state (CVE-2026-52929)
* kernel: ipv6: sit: reload inner IPv6 header after GSO offloads (CVE-2026-53228)
* kernel: ipvs: clear the svc scheduler ptr early on edit (CVE-2026-53270)
* kernel: spi: fsl-lpspi: terminate the RX channel on TX prepare failure path (CVE-2026-64303)
* kernel: mptcp: pm: userspace: fix use-after-free in get_local_id (CVE-2026-68169)
* kernel: scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE (CVE-2026-72083)
* kernel: tipc: require net admin for TIPCv2 netlink mutators (CVE-2026-74283)
* kernel: Bluetooth: mgmt: fix UAF in pair command cancellation (CVE-2026-74510)
* kernel: packet: use consistent hard_header_len in non-ring send paths (CVE-2026-74582)
* kernel: mptcp: options: reset DSS fields in case of unexpected size (CVE-2026-80586)
* kernel: entry: Fix seccomp bypass after ptrace with TSYNC (CVE-2026-89603)
* kernel: scsi: target: iscsi: Reserve a terminator byte for the login payload (CVE-2026-90011)
* kernel: virtio-fs: avoid double-free on failed queue setup (CVE-2026-93827)
* kernel: smb: client: bound dirent name against end of SMB response in cifs_filldir (CVE-2026-93787)
* kernel: xfrm: hold net_device reference under RCU in bundle creation (CVE-2026-98364)
* kernel: ipv4: free inet_opt and ireq_opt after an RCU grace period (CVE-2026-98432)
* kernel: KVM: arm64: Transfer the hyp stack pages out of the host stage-2 (CVE-2026-98466)
* kernel: nvmet-auth: fix out-of-bounds write in nvmet_auth_challenge() (CVE-2026-98725)
* kernel: ZDI-CAN-33367: Linux Kernel skbuff skb_zerocopy Improper Ownership Management Local Privilege Escalation Vulnerability ()

Bug Fix(es) and Enhancement(s):

* kernel panic in percpu_counter_add_batch() via submit_bio_noacct() due to NULL pointer (JIRA:RHEL-250378)
* ipv4: ip_gre: make ipgre_header() robust (rhel-9.8.z) (JIRA:RHEL-271127)
* ip6_gre: make ip6gre_header() robust (rhel-9.8.z) (JIRA:RHEL-271130)
* Backport "sched: The newidle balance regression" series to rhel 9.8 [rhel-9.8.z] (JIRA:RHEL-288067)
* AlmaLinux is missing support for conntrack zone filtering in dump/delete requests (9.10) [rhel-9.8.z] (JIRA:RHEL-291352)

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.

Fixed packages 74

ReleasePackageFixed in
AlmaLinux · 9 kernel 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-debug 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-debug-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-debug-devel 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-debug-devel-matched 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-debug-modules 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-debug-modules-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-debug-modules-extra 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-devel 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-devel-matched 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-modules 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-modules-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-64k-modules-extra 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-abi-stablelists 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-cross-headers 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-debug 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-debug-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-debug-devel 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-debug-devel-matched 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-debug-modules 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-debug-modules-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-debug-modules-extra 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-debug-uki-virt 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-devel 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-devel-matched 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-doc 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-headers 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-modules 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-modules-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-modules-extra 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-64k 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-64k-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-64k-debug 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-devel 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-modules 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-modules-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-modules-extra 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-64k-devel 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-64k-modules 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-64k-modules-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-64k-modules-extra 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-debug 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-debug-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-debug-devel 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-debug-modules 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-debug-modules-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-debug-modules-extra 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-devel 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-modules 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-modules-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-rt-modules-extra 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-tools 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-tools-libs 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-tools-libs-devel 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-uki-virt 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-uki-virt-addons 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-zfcpdump 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-zfcpdump-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-zfcpdump-devel 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-zfcpdump-devel-matched 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-zfcpdump-modules 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-zfcpdump-modules-core 5.14.0-687.64.1.el9_8
AlmaLinux · 9 kernel-zfcpdump-modules-extra 5.14.0-687.64.1.el9_8
AlmaLinux · 9 libperf 5.14.0-687.64.1.el9_8
AlmaLinux · 9 perf 5.14.0-687.64.1.el9_8
AlmaLinux · 9 python3-perf 5.14.0-687.64.1.el9_8
AlmaLinux · 9 rtla 5.14.0-687.64.1.el9_8
AlmaLinux · 9 rv 5.14.0-687.64.1.el9_8

Vulnerabilities 19

  • Critical 9.8
    CVE-2026-53228

    ipv6: sit: reload inner IPv6 header after GSO offloads

    In the Linux kernel, the following vulnerability has been resolved: ipv6: sit: reload inner IPv6 header after GSO offloads ipip6_tunnel_xmit() caches the inner IPv6 header pointer at function entry and continues using it after iptunnel_handle_offloads(). For …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Critical 9.8
    CVE-2026-64303

    spi: fsl-lpspi: terminate the RX channel on TX prepare failure path

    In the Linux kernel, the following vulnerability has been resolved: spi: fsl-lpspi: terminate the RX channel on TX prepare failure path When dmaengine_prep_slave_sg() fails for the TX channel, the error path terminates the TX DMA channel but leaves the RX cha…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Critical 9.8
    CVE-2026-72083

    scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE

    In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE core_scsi3_emulate_pro_register_and_move() maps the PERSISTENT RESERVE OUT parameter list with transport_kmap_data_sg() …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Critical 9.8
    CVE-2026-80586

    mptcp: options: reset DSS fields in case of unexpected size

    In the Linux kernel, the following vulnerability has been resolved: mptcp: options: reset DSS fields in case of unexpected size A remote peer could send a malformed DSS with a wrong size, followed by another DSS or MPC + Data. In this case, the first suboptio…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Critical 9.8
    CVE-2026-98432 Public exploit

    ipv4: free inet_opt and ireq_opt after an RCU grace period

    In the Linux kernel, the following vulnerability has been resolved: ipv4: free inet_opt and ireq_opt after an RCU grace period tcp_v4_syn_recv_sock() transfers ownership of ireq->ireq_opt to the child socket (newinet->inet_opt) without copying it. Another cpu…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Critical 9.1
    CVE-2026-90011

    scsi: target: iscsi: Reserve a terminator byte for the login payload

    In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Reserve a terminator byte for the login payload iscsi_target_check_login_request() rejects a login PDU whose DataSegmentLength exceeds MAX_KEY_VALUE_PAIRS, but the test i…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 8.4
    CVE-2026-89603 Rejected

    This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

    linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  • High 8.4
    CVE-2026-93827

    virtio-fs: avoid double-free on failed queue setup

    In the Linux kernel, the following vulnerability has been resolved: virtio-fs: avoid double-free on failed queue setup virtio_fs_setup_vqs() allocates fs->vqs and fs->mq_map before calling virtio_find_vqs(). If virtio_find_vqs() fails, the error path frees bo…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 8.2
    CVE-2026-98466

    KVM: arm64: Transfer the hyp stack pages out of the host stage-2

    In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Transfer the hyp stack pages out of the host stage-2 fix_host_ownership() walks only the linear-map alias of each memblock region, and the per-CPU hyp stack, mapped in the private…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 8.1
    CVE-2026-93787

    smb: client: bound dirent name against end of SMB response in cifs_filldir

    In the Linux kernel, the following vulnerability has been resolved: smb: client: bound dirent name against end of SMB response in cifs_filldir cifs_filldir() copies the entry name out of an SMB1 TRANS2_FIND_FIRST / FIND_NEXT response using a length (de.namele…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-53270

    ipvs: clear the svc scheduler ptr early on edit

    In the Linux kernel, the following vulnerability has been resolved: ipvs: clear the svc scheduler ptr early on edit ip_vs_edit_service() while unbinding the old scheduler clears the svc->scheduler ptr after the scheduler module initiates RCU callbacks. This c…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-74283

    tipc: require net admin for TIPCv2 netlink mutators

    In the Linux kernel, the following vulnerability has been resolved: tipc: require net admin for TIPCv2 netlink mutators TIPCv2 registers mutating generic-netlink operations without admin permission flags. Generic netlink only checks CAP_NET_ADMIN when an oper…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.8
    CVE-2026-74510

    Bluetooth: mgmt: fix UAF in pair command cancellation

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix UAF in pair command cancellation The pairing completion and authentication failure callbacks look up the pending MGMT_OP_PAIR_DEVICE command by walking hdev->mgmt_pending…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-74582

    packet: use consistent hard_header_len in non-ring send paths

    In the Linux kernel, the following vulnerability has been resolved: packet: use consistent hard_header_len in non-ring send paths packet_snd() reads dev->hard_header_len multiple times while allocating and constructing an skb. Device reconfiguration can chang…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-98364

    xfrm: hold net_device reference under RCU in bundle creation

    In the Linux kernel, the following vulnerability has been resolved: xfrm: hold net_device reference under RCU in bundle creation xfrm_bundle_create() and xfrm_create_dummy_bundle() read dst->dev into a local pointer without taking a device reference, then pas…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.5
    CVE-2026-52929

    sctp: stream: fully roll back denied add-stream state

    In the Linux kernel, the following vulnerability has been resolved: sctp: stream: fully roll back denied add-stream state When ADD_OUT_STREAMS is denied, SCTP only shrinks the queued chunks and then lowers outcnt. That leaves removed stream metadata behind, s…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-68169

    mptcp: pm: userspace: fix use-after-free in get_local_id

    In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: userspace: fix use-after-free in get_local_id In mptcp_pm_userspace_get_local_id(), the address entry is looked up under spinlock, but its id is read after dropping the lock. A con…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-98725

    nvmet-auth: fix out-of-bounds write in nvmet_auth_challenge()

    In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: fix out-of-bounds write in nvmet_auth_challenge() nvmet_auth_challenge() receives its output buffer as a void pointer. sizeof(*d) therefore evaluates to one with GCC and undercoun…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-99284

    net: skbuff: propagate shared-frag marker in skb_zerocopy()

    In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker in skb_zerocopy() skb_zerocopy() moves frag descriptors from @from into @to and takes a reference on each frag, but it does not copy skb_shinfo(from)…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-52929
  • report
    https://access.redhat.com/security/cve/CVE-2026-53228
  • report
    https://access.redhat.com/security/cve/CVE-2026-53270
  • report
    https://access.redhat.com/security/cve/CVE-2026-64303
  • report
    https://access.redhat.com/security/cve/CVE-2026-68169
  • report
    https://access.redhat.com/security/cve/CVE-2026-72083
  • report
    https://access.redhat.com/security/cve/CVE-2026-74283
  • report
    https://access.redhat.com/security/cve/CVE-2026-74510
  • report
    https://access.redhat.com/security/cve/CVE-2026-74582
  • report
    https://access.redhat.com/security/cve/CVE-2026-80586
  • report
    https://access.redhat.com/security/cve/CVE-2026-90011
  • report
    https://access.redhat.com/security/cve/CVE-2026-93787
  • report
    https://access.redhat.com/security/cve/CVE-2026-93827
  • report
    https://access.redhat.com/security/cve/CVE-2026-98364
  • report
    https://access.redhat.com/security/cve/CVE-2026-98432
  • report
    https://access.redhat.com/security/cve/CVE-2026-98466
  • report
    https://access.redhat.com/security/cve/CVE-2026-98725
  • report
    https://bugzilla.redhat.com/2492108
  • report
    https://bugzilla.redhat.com/2492733
  • report
    https://bugzilla.redhat.com/2492853
  • report
    https://bugzilla.redhat.com/2507222
  • report
    https://bugzilla.redhat.com/2513435
  • report
    https://bugzilla.redhat.com/2516579
  • report
    https://bugzilla.redhat.com/2516935
  • report
    https://bugzilla.redhat.com/2516970
  • report
    https://bugzilla.redhat.com/2519475
  • report
    https://bugzilla.redhat.com/2524438
  • report
    https://bugzilla.redhat.com/2532493
  • report
    https://bugzilla.redhat.com/2535227
  • report
    https://bugzilla.redhat.com/2540396
  • report
    https://bugzilla.redhat.com/2540555
  • report
    https://bugzilla.redhat.com/2546487
  • report
    https://bugzilla.redhat.com/2553390
  • report
    https://bugzilla.redhat.com/2554835
  • report
    https://bugzilla.redhat.com/2555068
  • report
    https://bugzilla.redhat.com/2559835
  • advisory
    https://errata.almalinux.org/9/ALSA-2026-93412.html
  • report
    https://www.redhat.com/security/data/cve/CVE-2026-99284.html