SUSE-SU-2026:2383-1

Description

Security update for the Linux Kernel The SUSE Linux Enterprise 15 SP4 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2026-31405: media: dvb-net: fix OOB access in ULE extension header tables (bsc#1261700). - CVE-2026-31629: nfc: llcp: add missing return after LLCP_CLOSED checks (bsc#1263790). - CVE-2026-31758: usb: usbtmc: Flush anchored URBs in usbtmc_release (bsc#1264093). - CVE-2026-43037: ip6_tunnel: clear skb2->cb in ip4ip6_err() (bsc#1263995). - CVE-2026-43206: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() (bsc#1264551). - CVE-2026-43499: rtmutex: Use waiter::task instead of current in remove_waiter() (bsc#1266001). - CVE-2026-43501: ipv6: rpl: reserve mac_len headroom when recompressed SRH grows (bsc#1266009). - CVE-2026-45852: RDMA/rxe: Fix double free in rxe_srq_from_init (bsc#1266711). - CVE-2026-45970: bonding: alb: fix UAF in rlb_arp_recv during bond up/down (bsc#1267205). - CVE-2026-46021: thermal: core: Fix thermal zone governor cleanup issues (bsc#1267220). - CVE-2026-46043: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (bsc#1266901). - CVE-2026-46113: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN (bsc#1266969). - CVE-2026-46243: smb: client: reject userspace cifs.spnego descriptions (bsc#1266238). The following non security issues were fixed: - arm64: tlb: Allow XZR argument to TLBI ops (git-fixes). - arm64: tlb: Optimize ARM64_WORKAROUND_REPEAT_TLBI (git-fixes).

Affected Systems

• suse•kernel-64kb&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS

  < 5.14.21-150400.24.222.1

• suse•kernel-64kb&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

• suse•kernel-64kb&distro=SUSE Linux Enterprise Server 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

• suse•kernel-default-base&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS

  < 5.14.21-150400.24.222.1.150400.24.112.1

• suse•kernel-default-base&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS

  < 5.14.21-150400.24.222.1.150400.24.112.1

• suse•kernel-default-base&distro=SUSE Linux Enterprise Micro 5.3

  < 5.14.21-150400.24.222.1.150400.24.112.1

• suse•kernel-default-base&distro=SUSE Linux Enterprise Micro 5.4

  < 5.14.21-150400.24.222.1.150400.24.112.1

• suse•kernel-default-base&distro=SUSE Linux Enterprise Server 15 SP4-LTSS

  < 5.14.21-150400.24.222.1.150400.24.112.1

• suse•kernel-default-base&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP4

  < 5.14.21-150400.24.222.1.150400.24.112.1

• suse•kernel-default&distro=SUSE Linux Enterprise High Availability Extension 15 SP4

  < 5.14.21-150400.24.222.1

• suse•kernel-default&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS

  < 5.14.21-150400.24.222.1

• suse•kernel-default&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

• suse•kernel-default&distro=SUSE Linux Enterprise Live Patching 15 SP4

  < 5.14.21-150400.24.222.1

• suse•kernel-default&distro=SUSE Linux Enterprise Micro 5.3

  < 5.14.21-150400.24.222.1

• suse•kernel-default&distro=SUSE Linux Enterprise Micro 5.4

  < 5.14.21-150400.24.222.1

• suse•kernel-default&distro=SUSE Linux Enterprise Server 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

• suse•kernel-default&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP4

  < 5.14.21-150400.24.222.1

• suse•kernel-docs&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS

  < 5.14.21-150400.24.222.1

• suse•kernel-docs&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

• suse•kernel-docs&distro=SUSE Linux Enterprise Server 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

• suse•kernel-docs&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP4

  < 5.14.21-150400.24.222.1

• suse•kernel-livepatch-SLE15-SP4_Update_55&distro=SUSE Linux Enterprise Live Patching 15 SP4

  < 1-150400.9.3.1

• suse•kernel-obs-build&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS

  < 5.14.21-150400.24.222.1

• suse•kernel-obs-build&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

• suse•kernel-obs-build&distro=SUSE Linux Enterprise Server 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

• suse•kernel-obs-build&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP4

  < 5.14.21-150400.24.222.1

• suse•kernel-source&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS

  < 5.14.21-150400.24.222.1

• suse•kernel-source&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

• suse•kernel-source&distro=SUSE Linux Enterprise Micro 5.3

  < 5.14.21-150400.24.222.1

• suse•kernel-source&distro=SUSE Linux Enterprise Micro 5.4

  < 5.14.21-150400.24.222.1

• suse•kernel-source&distro=SUSE Linux Enterprise Server 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

• suse•kernel-source&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP4

  < 5.14.21-150400.24.222.1

• suse•kernel-syms&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS

  < 5.14.21-150400.24.222.1

• suse•kernel-syms&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

• suse•kernel-syms&distro=SUSE Linux Enterprise Server 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

• suse•kernel-syms&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP4

  < 5.14.21-150400.24.222.1

• suse•kernel-zfcpdump&distro=SUSE Linux Enterprise Server 15 SP4-LTSS

  < 5.14.21-150400.24.222.1

References (27)

• https://www.suse.com/support/update/announcement/2026/suse-su-20262383-1/
• https://bugzilla.suse.com/1261700
• https://bugzilla.suse.com/1263790
• https://bugzilla.suse.com/1263995
• https://bugzilla.suse.com/1264093
• https://bugzilla.suse.com/1264551
• https://bugzilla.suse.com/1266001
• https://bugzilla.suse.com/1266009
• https://bugzilla.suse.com/1266238
• https://bugzilla.suse.com/1266711
• https://bugzilla.suse.com/1266901
• https://bugzilla.suse.com/1266969
• https://bugzilla.suse.com/1267205
• https://bugzilla.suse.com/1267220
• https://www.suse.com/security/cve/CVE-2026-31405
• https://www.suse.com/security/cve/CVE-2026-31629
• https://www.suse.com/security/cve/CVE-2026-31758
• https://www.suse.com/security/cve/CVE-2026-43037
• https://www.suse.com/security/cve/CVE-2026-43206
• https://www.suse.com/security/cve/CVE-2026-43499
• https://www.suse.com/security/cve/CVE-2026-43501
• https://www.suse.com/security/cve/CVE-2026-45852
• https://www.suse.com/security/cve/CVE-2026-45970
• https://www.suse.com/security/cve/CVE-2026-46021
• https://www.suse.com/security/cve/CVE-2026-46043
• https://www.suse.com/security/cve/CVE-2026-46113
• https://www.suse.com/security/cve/CVE-2026-46243