alsa-2026:66180
Vulnerability from osv_almalinux
Published
2026-09-09 00:00
Modified
2026-09-11 15:50
Summary
Important: kernel security, bug fix, and enhancement update
Details
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
- kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation (CVE-2026-43133)
- kernel: ipv6: prevent possible UaF in addrconf_permanent_addr() (CVE-2026-43339)
- kernel: crypto: pcrypt - Fix handling of MAY_BACKLOG requests (CVE-2026-43493)
- kernel: tcp: call sk_data_ready() after listener migration (CVE-2026-46015)
- kernel: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() (CVE-2026-46149)
- kernel: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP (CVE-2026-46266)
- kernel: flow_dissector: do not dissect PPPoE PFC frames (CVE-2026-46306)
- kernel: Revert "net/smc: Introduce TCP ULP support" (CVE-2026-46330)
- kernel: netfilter: conntrack: remove sprintf usage (CVE-2026-53002)
- kernel: net: guard timestamp cmsgs to real error queue skbs (CVE-2026-53223)
- kernel: ipv6: mcast: Fix use-after-free when processing MLD queries (CVE-2026-53275)
- kernel: ipv4: account for fraggap on the paged allocation path (CVE-2026-53366)
- kernel: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer (CVE-2026-64034)
- kernel: rhashtable: clear stale iter->p on table restart (CVE-2026-64563)
- kernel: smb: client: fix double-free in SMB2_close() replay (CVE-2026-64597)
- kernel: nvmet-rdma: handle inline data with a nonzero offset (CVE-2026-72129)
- kernel: net: bridge: stop fast-leave after deleting a port group (CVE-2026-74480)
Bug Fix(es) and Enhancement(s):
- KSM to deduplicate only zero pages [almalinux-9.8.z] (JIRA:AlmaLinux-249161)
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.
References
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"details": "The kernel packages contain the Linux kernel, the core of any Linux operating system. \n\nSecurity Fix(es): \n\n * kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation (CVE-2026-43133)\n * kernel: ipv6: prevent possible UaF in addrconf_permanent_addr() (CVE-2026-43339)\n * kernel: crypto: pcrypt - Fix handling of MAY_BACKLOG requests (CVE-2026-43493)\n * kernel: tcp: call sk_data_ready() after listener migration (CVE-2026-46015)\n * kernel: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() (CVE-2026-46149)\n * kernel: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP (CVE-2026-46266)\n * kernel: flow_dissector: do not dissect PPPoE PFC frames (CVE-2026-46306)\n * kernel: Revert \"net/smc: Introduce TCP ULP support\" (CVE-2026-46330)\n * kernel: netfilter: conntrack: remove sprintf usage (CVE-2026-53002)\n * kernel: net: guard timestamp cmsgs to real error queue skbs (CVE-2026-53223)\n * kernel: ipv6: mcast: Fix use-after-free when processing MLD queries (CVE-2026-53275)\n * kernel: ipv4: account for fraggap on the paged allocation path (CVE-2026-53366)\n * kernel: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer (CVE-2026-64034)\n * kernel: rhashtable: clear stale iter-\u003ep on table restart (CVE-2026-64563)\n * kernel: smb: client: fix double-free in SMB2_close() replay (CVE-2026-64597)\n * kernel: nvmet-rdma: handle inline data with a nonzero offset (CVE-2026-72129)\n * kernel: net: bridge: stop fast-leave after deleting a port group (CVE-2026-74480)\n\n\nBug Fix(es) and Enhancement(s): \n\n * KSM to deduplicate only zero pages [almalinux-9.8.z] (JIRA:AlmaLinux-249161)\n\n\nFor 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.\n",
"id": "ALSA-2026:66180",
"modified": "2026-09-11T15:50:57Z",
"published": "2026-09-09T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2026:66180"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-43133"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-43339"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-43493"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-46015"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-46149"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-46266"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-46306"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-46330"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-53002"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-53223"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-53275"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-53366"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-64034"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-64563"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-64597"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-72129"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-74480"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2467065"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2468102"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2479812"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2481936"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2482566"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2484456"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2486463"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2486999"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2492329"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2492811"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2492841"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2501252"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2502394"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2510892"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2511932"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2516731"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2517046"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/9/ALSA-2026-66180.html"
}
],
"related": [
"CVE-2026-43133",
"CVE-2026-43339",
"CVE-2026-43493",
"CVE-2026-46015",
"CVE-2026-46149",
"CVE-2026-46266",
"CVE-2026-46306",
"CVE-2026-46330",
"CVE-2026-53002",
"CVE-2026-53223",
"CVE-2026-53275",
"CVE-2026-53366",
"CVE-2026-64034",
"CVE-2026-64563",
"CVE-2026-64597",
"CVE-2026-72129",
"CVE-2026-74480"
],
"summary": "Important: kernel security, bug fix, and enhancement update"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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