SUSE-SU-2026:4660-1
Security update for the Linux Kernel
Published Oct 14, 2026 · corrected/updated Oct 14, 2026 · evidence confidence medium
The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2025-38704: rcu/nocb: Fix possible invalid rdp's->nocb_cb_kthread pointer (bsc#1254408). - CVE-2026-43502: net/rds: handle zerocopy send cleanup before the message is queued (bsc#1266008). - CVE-2026-46135: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec (bsc#1267373). - CVE-2026-53266: netfilter: bridge: make ebt_snat ARP rewrite writable (bsc#1269136). - CVE-2026-53400: i2c: core: fix adapter registration race (bsc#1271906). - CVE-2026-63795: 9p: avoid putting oldfid in p9_client_walk() error path (bsc#1271955). - CVE-2026-64279: i2c: core: fix adapter deregistration race (bsc#1273953). - CVE-2026-64319: nvmet-auth: validate reply message payload bounds against transfer length (bsc#1273339). - CVE-2026-64320: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page (bsc#1273420). - CVE-2026-64422: net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes (bsc#1273290). - CVE-2026-64556: perf/core: Detach event groups during remove_on_exec (bsc#1273251). - CVE-2026-64580: xfrm6: clear dst.dev on error to avoid double netdev_put in xfrm6_fill_dst() (bsc#1274037). - CVE-2026-68162: sctp: avoid auth_enable sysctl UAF during netns teardown (bsc#1274920). - CVE-2026-68290: rds: tcp: unregister sysctl before tearing down listen socket (bsc#1275977). - CVE-2026-68376: sctp: fix auth_hmacs array size in struct sctp_cookie (bsc#1274836). - CVE-2026-68445: drm/vc4: Prevent shader BO mappings from becoming writable (bsc#1276277). - CVE-2026-68451: s390/zcrypt: Validate length for CCA ECC private key requests (bsc#1276287). - CVE-2026-68452: s390/zcrypt: Validate length for CCA AES cipher key requests (bsc#1276295). - CVE-2026-68454: KVM: s390: pci: Fix handling of AIF enable without AISB (bsc#1276388). - CVE-2026-72051: net: ip6_tunnel: require CAP_NET_ADMIN in the device netns for changelink (bsc#1276801). - CVE-20
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
SUSE-SU-2026:4660-1 is a unknown public vulnerability record for this product. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether this product is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: kernel-default (0 → 6.4.0-150600.23.138.1); kernel-default (0 → 6.4.0-150600.23.138.1); kernel-livepatch-SLE15-SP6_Update_32 (0 → 1-150600.13.3.1); kernel-64kb (0 → 6.4.0-150600.23.138.1). Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: no CVSS/EPSS yet. It is not currently listed in the CISA Known Exploited catalog. Sources contributing to this record: osv. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 14, 2026 · OSV.dev
Detected
The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2025-38704: rcu/nocb: Fix possible invalid rdp's->nocb_cb_kthread pointer (bsc#1254408). - CVE-2026-43502: net/rds: handle zerocopy send cleanup before the message is queued (bsc#1266008). - CVE-2026-46135: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec (bs
Oct 14, 2026 · OSV.dev
Fix available
kernel-default fixed in 6.4.0-150600.23.138.1; kernel-livepatch-SLE15-SP6_Update_32 fixed in 1-150600.13.3.1; kernel-default fixed in 6.4.0-150600.23.138.1; kernel-64kb fixed in 6.4.0-150600.23.138.1
Oct 14, 2026 · OSV.dev
Fix available
kernel-default fixed in 6.4.0-150600.23.138.1
Oct 14, 2026 · OSV.dev
Fix available
kernel-livepatch-SLE15-SP6_Update_32 fixed in 1-150600.13.3.1
Oct 14, 2026 · OSV.dev
Fix available
kernel-64kb fixed in 6.4.0-150600.23.138.1
Oct 14, 2026 · OSV.dev
Fix available
kernel-default-base fixed in 6.4.0-150600.23.138.1.150600.12.64.1
Oct 14, 2026 · OSV.dev
Fix available
kernel-docs fixed in 6.4.0-150600.23.138.1
Oct 14, 2026 · OSV.dev
Fix available
kernel-obs-build fixed in 6.4.0-150600.23.138.1
Oct 14, 2026 · OSV.dev
Fix available
kernel-source fixed in 6.4.0-150600.23.138.1
Oct 14, 2026 · OSV.dev
Fix available
kernel-syms fixed in 6.4.0-150600.23.138.1
Oct 14, 2026 · OSV.dev
Fix available
kernel-zfcpdump fixed in 6.4.0-150600.23.138.1
Oct 14, 2026 · OSV.dev
Updated
The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2025-38704: rcu/nocb: Fix possible invalid rdp's->nocb_cb_kthread pointer (bsc#1254408). - CVE-2026-43502: net/rds: handle zerocopy send cleanup before the message is queued (bsc#1266008). - CVE-2026-46135: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec (bs
Affected
- SUSE:Linux Enterprise High Availability kernel-default0 → 6.4.0-150600.23.138.1
- SUSE:Linux Enterprise Live Patching 15 S kernel-default0 → 6.4.0-150600.23.138.1
- SUSE:Linux Enterprise Live Patching 15 S kernel-livepatch-SLE15-SP6_Update_320 → 1-150600.13.3.1
- SUSE:Linux Enterprise Server 15 SP6-LTSS kernel-64kb0 → 6.4.0-150600.23.138.1
- SUSE:Linux Enterprise Server 15 SP6-LTSS kernel-default0 → 6.4.0-150600.23.138.1
- SUSE:Linux Enterprise Server 15 SP6-LTSS kernel-default-base0 → 6.4.0-150600.23.138.1.150600.12.64.1
- SUSE:Linux Enterprise Server 15 SP6-LTSS kernel-docs0 → 6.4.0-150600.23.138.1
- SUSE:Linux Enterprise Server 15 SP6-LTSS kernel-obs-build0 → 6.4.0-150600.23.138.1
- SUSE:Linux Enterprise Server 15 SP6-LTSS kernel-source0 → 6.4.0-150600.23.138.1
- SUSE:Linux Enterprise Server 15 SP6-LTSS kernel-syms0 → 6.4.0-150600.23.138.1
- SUSE:Linux Enterprise Server 15 SP6-LTSS kernel-zfcpdump0 → 6.4.0-150600.23.138.1
- SUSE:Linux Enterprise Server for SAP App kernel-default0 → 6.4.0-150600.23.138.1