Skip to content
OpenAdvisories
High ALSA-2026:66325 15 CVEs

Important: kernel security, bug fix, and enhancement update

Published Sep 10, 2026 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

Summary

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

Security Fix(es):

* kernel: Linux kernel: Denial of Service in qla2xxx SCSI driver due to improper command handling after chip reset (CVE-2025-68745)
* kernel: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() (CVE-2026-46149)
* kernel: netfilter: nf_log: validate MAC header was set before dumping it (CVE-2026-52942)
* kernel: sctp: diag: reject stale associations in dump_one path (CVE-2026-52917)
* kernel: net: pull headers in qdisc_pkt_len_segs_init() (CVE-2026-53091)
* kernel: netfilter: nf_conntrack_sip: don't use simple_strtoul (CVE-2026-52986)
* kernel: sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing (CVE-2026-53246)
* kernel: tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done (CVE-2026-63801)
* kernel: sctp: fix race between sctp_wait_for_connect and peeloff (CVE-2026-63971)
* kernel: security/keys: fix missed RCU read section on lookup (CVE-2026-64015)
* kernel: ixgbevf: fix use-after-free in VEPA multicast source pruning (CVE-2026-64113)
* kernel: sctp: fix auth_hmacs array size in struct sctp_cookie (CVE-2026-68376)
* kernel: tipc: clear sock->sk on the failed-insert path in tipc_sk_create() (CVE-2026-68117)
* kernel: sctp: auth: verify auth requirement when auth_chunk is NULL (CVE-2026-68300)
* kernel: sctp: validate stream count in sctp_process_strreset_inreq() (CVE-2026-68315)

Bug Fix(es) and Enhancement(s):

* scsi: mpt3sas: avoid freeing unallocated PCIe SGL buffers [almalinux 8.6.z] (JIRA:AlmaLinux-194117)
* gfs2: harden gfs2_glock_hold [AlmaLinux-8] (JIRA:AlmaLinux-240340)

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 25

ReleasePackageFixed in
AlmaLinux · 8 bpftool 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-abi-stablelists 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-core 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-cross-headers 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-debug 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-debug-core 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-debug-devel 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-debug-modules 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-debug-modules-extra 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-devel 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-doc 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-headers 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-modules 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-modules-extra 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-tools 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-tools-libs 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-tools-libs-devel 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-zfcpdump 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-core 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-devel 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-modules 4.18.0-553.162.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-modules-extra 4.18.0-553.162.1.el8_10
AlmaLinux · 8 perf 4.18.0-553.162.1.el8_10
AlmaLinux · 8 python3-perf 4.18.0-553.162.1.el8_10

Vulnerabilities 15

  • Critical 9.8
    CVE-2025-68745

    scsi: qla2xxx: Clear cmds after chip reset

    In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Clear cmds after chip reset Commit aefed3e5548f ("scsi: qla2xxx: target: Fix offline port handling and host reset handling") caused two problems: 1. Commands sent to FW, after …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Critical 9.8
    CVE-2026-52986

    netfilter: nf_conntrack_sip: don't use simple_strtoul

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_sip: don't use simple_strtoul Replace unsafe port parsing in epaddr_len(), ct_sip_parse_header_uri(), and ct_sip_parse_request() with a new sip_parse_port() helper tha…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Critical 9.8
    CVE-2026-53246

    sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing

    In the Linux kernel, the following vulnerability has been resolved: sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing When a listening SCTP server processes a COOKIE_ECHO chunk, the cached peer INIT chunk embedded after the cookie is pars…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • 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
  • Critical 9.8
    CVE-2026-68117

    tipc: clear sock->sk on the failed-insert path in tipc_sk_create()

    In the Linux kernel, the following vulnerability has been resolved: tipc: clear sock->sk on the failed-insert path in tipc_sk_create() When tipc_sk_create() fails to insert the new socket (tipc_sk_insert() returns non-zero), its error path frees the sk with s…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Critical 9.8
    CVE-2026-68300

    sctp: auth: verify auth requirement when auth_chunk is NULL

    In the Linux kernel, the following vulnerability has been resolved: sctp: auth: verify auth requirement when auth_chunk is NULL sctp_auth_chunk_verify() returns true unconditionally when chunk->auth_chunk is NULL, silently skipping authentication. This is inc…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 8.8
    CVE-2026-63801

    tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done

    In the Linux kernel, the following vulnerability has been resolved: tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done tipc_aead_decrypt() goes straight from tipc_bearer_hold(b) to crypto_aead_decrypt(req) without taking a reference on the netns, un…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • 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
  • High 8.1
    CVE-2026-68376 Public exploit

    sctp: fix auth_hmacs array size in struct sctp_cookie

    In the Linux kernel, the following vulnerability has been resolved: sctp: fix auth_hmacs array size in struct sctp_cookie The auth_hmacs array in struct sctp_cookie is supposed to store a complete SCTP_AUTH_HMAC_ALGO parameter, which consists of a struct sctp…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.8
    CVE-2026-63971

    sctp: fix race between sctp_wait_for_connect and peeloff

    In the Linux kernel, the following vulnerability has been resolved: sctp: fix race between sctp_wait_for_connect and peeloff sctp_wait_for_connect() drops and re-acquires the socket lock while waiting for the association to reach ESTABLISHED state. During thi…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • 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
  • High 7.5
    CVE-2026-68315

    sctp: validate stream count in sctp_process_strreset_inreq()

    In the Linux kernel, the following vulnerability has been resolved: sctp: validate stream count in sctp_process_strreset_inreq() When processing a RESET_IN_REQUEST from a peer, sctp_process_strreset_inreq() derives the stream count from the parameter length b…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.1
    CVE-2026-46149

    scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show()

    In the Linux kernel, the following vulnerability has been resolved: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() target_tg_pt_gp_members_show() formats LUN paths with snprintf() into a 256-byte stack buffer, then will memcpy() cu…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.1
    CVE-2026-52917

    sctp: diag: reject stale associations in dump_one path

    In the Linux kernel, the following vulnerability has been resolved: sctp: diag: reject stale associations in dump_one path The SCTP exact sock_diag lookup can hold a transport reference, block on lock_sock(sk), and then resume after sctp_association_free() ha…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.1
    CVE-2026-52942

    netfilter: nf_log: validate MAC header was set before dumping it

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_log: validate MAC header was set before dumping it The fallback path of dump_mac_header() guards the MAC header access only with "skb->mac_header != skb->network_header", withou…

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

References

  • report
    https://access.redhat.com/security/cve/CVE-2025-68745
  • report
    https://access.redhat.com/security/cve/CVE-2026-46149
  • report
    https://access.redhat.com/security/cve/CVE-2026-52917
  • report
    https://access.redhat.com/security/cve/CVE-2026-52942
  • report
    https://access.redhat.com/security/cve/CVE-2026-52986
  • report
    https://access.redhat.com/security/cve/CVE-2026-53091
  • report
    https://access.redhat.com/security/cve/CVE-2026-53246
  • report
    https://access.redhat.com/security/cve/CVE-2026-63801
  • report
    https://access.redhat.com/security/cve/CVE-2026-63971
  • report
    https://access.redhat.com/security/cve/CVE-2026-64015
  • report
    https://access.redhat.com/security/cve/CVE-2026-64113
  • report
    https://access.redhat.com/security/cve/CVE-2026-68117
  • report
    https://access.redhat.com/security/cve/CVE-2026-68300
  • report
    https://access.redhat.com/security/cve/CVE-2026-68315
  • report
    https://access.redhat.com/security/cve/CVE-2026-68376
  • report
    https://bugzilla.redhat.com/2425039
  • report
    https://bugzilla.redhat.com/2482566
  • report
    https://bugzilla.redhat.com/2492091
  • report
    https://bugzilla.redhat.com/2492115
  • report
    https://bugzilla.redhat.com/2492270
  • report
    https://bugzilla.redhat.com/2492397
  • report
    https://bugzilla.redhat.com/2492771
  • report
    https://bugzilla.redhat.com/2502254
  • report
    https://bugzilla.redhat.com/2502331
  • report
    https://bugzilla.redhat.com/2502380
  • report
    https://bugzilla.redhat.com/2502541
  • report
    https://bugzilla.redhat.com/2513253
  • report
    https://bugzilla.redhat.com/2513397
  • report
    https://bugzilla.redhat.com/2513408
  • report
    https://bugzilla.redhat.com/2513474
  • advisory
    https://errata.almalinux.org/8/ALSA-2026-66325.html