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SUSE-SU-2026:2638-1 Not scored

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-2025-10263: arm64: errata: Mitigate TLBI errata on various Arm CPUs (bsc#1266290). - CVE-2025-68324: scsi: imm: Fix use-after-free bug caused by unfinished delayed work (bsc#1255416). - CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531). - CVE-2026-31473: media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex (bsc#1262663). - CVE-2026-31500: Bluetooth: btintel: serialize btintel_hw_error() with hci_req_sync_lock (bsc#1262993). - CVE-2026-31613: smb: client: fix OOB reads parsing symlink error response (bsc#1263769). - CVE-2026-31697: crypto: ccp: Don't attempt to copy ID to userspace if PSP command failed (bsc#1264116). - CVE-2026-31698: crypto: ccp: Don't attempt to copy PDH cert to userspace if PSP command failed (bsc#1263880). - CVE-2026-31699: crypto: ccp: Don't attempt to copy CSR to userspace if PSP command failed (bsc#1263879). - CVE-2026-31759: usb: ulpi: fix double free in ulpi_register_interface() error path (bsc#1264076). - CVE-2026-43077: crypto: algif_aead - Fix minimum RX size check for decryption (bsc#1264470). - CVE-2026-43198: tcp: fix potential race in tcp_v6_syn_recv_sock() (bsc#1264610). - CVE-2026-45984: gfs2: Move the inode glock locking to gfs2_file_buffered_write (bsc#1267214). - CVE-2026-46037: ipv4: icmp: validate reply type before using icmp_pointers (bsc#1267361). - CVE-2026-46116: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete (bsc#1267369). - CVE-2026-46120: ip6_gre: Use cached t->net in ip6erspan_changelink() (bsc#1267640). - CVE-2026-46123: Bluetooth: virtio_bt: clamp rx length before skb_put (bsc#1267621). - CVE-2026-46150: fanotify: fix false positive on permission events (bsc#1267387). - CVE-2026-46159: btrfs: fix btrfs_ioctl_space_info() slot_count TOCTOU which can lead to info-leak (bsc#1267652). - CVE-2026-46197: drm/amdkfd: validate SVM ioctl nattr against buffer size (bsc#1267381). - CVE-2026-46227: sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL (bsc#1267697). The following non security issues were fixed: - smb: client: correctly handle ErrorContextData as a flexible array (git-fixes).

Exploit probability Not scored
Published June 26, 2026
Required by Not available
Last source change June 27, 2026

02 / AFFECTED SOFTWARE

Affected packages

SUSE:Linux Enterprise Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_56
SUSE:Linux Enterprise Server for SAP Applications 15 SP4 kernel-syms
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-docs
SUSE:Linux Enterprise Micro 5.3 kernel-default
SUSE:Linux Enterprise Server for SAP Applications 15 SP4 kernel-default-base
SUSE:Linux Enterprise Server 15 SP4-LTSS kernel-syms
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-source
SUSE:Linux Enterprise Server 15 SP4-LTSS kernel-source
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-64kb
SUSE:Linux Enterprise Micro 5.4 kernel-source
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-obs-build
SUSE:Linux Enterprise Micro 5.3 kernel-default-base
SUSE:Linux Enterprise Server for SAP Applications 15 SP4 kernel-docs
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-default
SUSE:Linux Enterprise Server 15 SP4-LTSS kernel-default-base
SUSE:Linux Enterprise Server for SAP Applications 15 SP4 kernel-default
SUSE:Linux Enterprise Server 15 SP4-LTSS kernel-64kb
SUSE:Linux Enterprise Server 15 SP4-LTSS kernel-default
SUSE:Linux Enterprise Server 15 SP4-LTSS kernel-obs-build
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-obs-build
SUSE:Linux Enterprise Server for SAP Applications 15 SP4 kernel-obs-build
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-syms
SUSE:Linux Enterprise Micro 5.4 kernel-default
SUSE:Linux Enterprise Server for SAP Applications 15 SP4 kernel-source
SUSE:Linux Enterprise Server 15 SP4-LTSS kernel-zfcpdump
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-docs
SUSE:Linux Enterprise Live Patching 15 SP4 kernel-default
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-syms
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-default-base
SUSE:Linux Enterprise Micro 5.4 kernel-default-base
SUSE:Linux Enterprise High Availability Extension 15 SP4 kernel-default
SUSE:Linux Enterprise Micro 5.3 kernel-source
SUSE:Linux Enterprise Server 15 SP4-LTSS kernel-docs
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-default
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-source
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-default-base
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-64kb

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities SUSE-SU-2026:2638-1

The SUSE Linux Enterprise 15 SP4 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-10263: arm64: errata: Mitigate TLBI errata on various Arm CPUs (bsc#1266290). - CVE-2025-68324: scsi: imm: Fix use-after-free bug caused by unfinished delayed work (bsc#1255416). - CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531). - CVE-2026-31473: media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex (bsc#1262663). - CVE-2026-31500: Bluetooth: btintel: serialize btintel_hw_error() with hci_req_sync_lock (bsc#1262993). - CVE-2026-31613: smb: client: fix OOB reads parsing symlink error response (bsc#1263769). - CVE-2026-31697: crypto: ccp: Don't attempt to copy ID to userspace if PSP command failed (bsc#1264116). - CVE-2026-31698: crypto: ccp: Don't attempt to copy PDH cert to userspace if PSP command failed (bsc#1263880). - CVE-2026-31699: crypto: ccp: Don't attempt to copy CSR to userspace if PSP command failed (bsc#1263879). - CVE-2026-31759: usb: ulpi: fix double free in ulpi_register_interface() error path (bsc#1264076). - CVE-2026-43077: crypto: algif_aead - Fix minimum RX size check for decryption (bsc#1264470). - CVE-2026-43198: tcp: fix potential race in tcp_v6_syn_recv_sock() (bsc#1264610). - CVE-2026-45984: gfs2: Move the inode glock locking to gfs2_file_buffered_write (bsc#1267214). - CVE-2026-46037: ipv4: icmp: validate reply type before using icmp_pointers (bsc#1267361). - CVE-2026-46116: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete (bsc#1267369). - CVE-2026-46120: ip6_gre: Use cached t->net in ip6erspan_changelink() (bsc#1267640). - CVE-2026-46123: Bluetooth: virtio_bt: clamp rx length before skb_put (bsc#1267621). - CVE-2026-46150: fanotify: fix false positive on permission events (bsc#1267387). - CVE-2026-46159: btrfs: fix btrfs_ioctl_space_info() slot_count TOCTOU which can lead to info-leak (bsc#1267652). - CVE-2026-46197: drm/amdkfd: validate SVM ioctl nattr against buffer size (bsc#1267381). - CVE-2026-46227: sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL (bsc#1267697). The following non security issues were fixed: - smb: client: correctly handle ErrorContextData as a flexible array (git-fixes).

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05 / REFERENCES

Further evidence