Threats Tagged 'cve-2026-63917'

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: xfrm: hold dev ref until after transport_finish NF_HOOK (CVE-2026-31663) * kernel: xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx() (CVE-2026-53239) * kernel: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate() (CVE-2026-63921) * kernel: xfrm: input: hold netns during deferred transport reinjection (CVE-2026-63919) * kernel: ip6: vti: Use ip6_tnl.net in vti6_changelink() (CVE-2026-63917) * kernel: xfrm: fix stale skb->prev after async crypto steals a GSO segment (CVE-2026-68426) * kernel: nvmet-auth: reject short AUTH_RECEIVE buffers (CVE-2026-72130) * kernel: udp: fix potential use-after-free in tunnel segmentation (CVE-2026-74705) 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.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock() (CVE-2025-40149) * kernel: ipv6: add NULL checks for idev in SRv6 paths (CVE-2026-23442) * kernel: thermal: core: Fix thermal zone device registration error path (CVE-2026-43332) * kernel: KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1 (CVE-2026-46076) * kernel: gfs2: Fix slab-use-after-free in qd_put (CVE-2026-45861) * kernel: Bluetooth: hci_uart: fix UAFs and race conditions in close and init paths (CVE-2026-46275) * kernel: KVM: arm64: Reassign nested_mmus array behind mmu_lock (CVE-2026-46317) * kernel: netfilter: nf_log: validate MAC header was set before dumping it (CVE-2026-52942) * kernel: gfs2: add some missing log locking (CVE-2026-53049) * kernel: netfilter: nf_conntrack_sip: don't use simple_strtoul (CVE-2026-52986) * kernel: Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_conn_del() (CVE-2026-53357) * kernel: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-63829) * kernel: ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() (CVE-2026-63924) * kernel: ipv6: exthdrs: refresh nh after handling HAO option (CVE-2026-63922) * kernel: ipv6: validate extension header length before copying to cmsg (CVE-2026-63920) * kernel: vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu() (CVE-2026-63993) * kernel: ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress() (CVE-2026-63984) * kernel: tunnels: do not assume transport header in iptunnel_pmtud_check_icmp() (CVE-2026-63992) * kernel: tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]() (CVE-2026-63994) * kernel: Kernel SMB client: Double-free vulnerability allows remote denial of service or privilege escalation (CVE-2026-64385) * kernel: Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_new_connection_cb() (CVE-2026-64557) * kernel: vxlan: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-68432) * kernel: net: ip6_gre: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-72052) * kernel: dm-integrity: don't increment hash_offset twice (CVE-2026-72099) * kernel: KVM: arm64: vgic: Check the interrupt is still ours before migrating it (CVE-2026-72289) * kernel: netfilter: nf_queue: pin bridge device while NFQUEUE holds fake dst (CVE-2026-72255) * kernel: KVM: SVM: Update x2APIC MSR intercepts if AVIC is inhibited while L2 is active (CVE-2026-74516) * kernel: netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_tcp() (CVE-2026-74569) * kernel: ipvs: clear IPv4 options after rebasing tunnel ICMP errors (CVE-2026-74669) * kernel: netfilter: flowtable: publish GC-visible tuple last (CVE-2026-74746) * kernel: ipv6: fix use-after-free in ip6_finish_output2() (CVE-2026-80792) * kernel: KVM: s390: vsie: zero stale crypto bits (CVE-2026-80921) * kernel: nvme-tcp: reject a read that transferred too few bytes (CVE-2026-89480) * kernel: nvme-tcp: fix host memory disclosure on R2T for a read command (CVE-2026-89481) * kernel: nvme: add missing SRCU grace period in error path (CVE-2026-89972) * kernel: nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed() (CVE-2026-90227) * kernel: netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack() (CVE-2026-97417) * kernel: netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state (CVE-2026-93288) Bug Fix(es) and Enhancement(s): * [RHEL-9.8] kernel BUG at lib/list_debug.c:23! observed with liburing buf-ring-upgrade.t [rhel-9.8.z] (JIRA:RHEL-254192) * hwmon: (core) Use device name as a fallback in devm_hwmon_device_register_with_info [rhel-9.8.z] (JIRA:RHEL-262029) * RHEL9.4 - kernel: CPU hotplug unsupported by CPUMF [rhel-9.8.z] (JIRA:RHEL-270892) * Accel-DSA: dmaengine: idxd: kernel oops on unbind [rhel-9.8.z] (JIRA:RHEL-274410) 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.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: ipvlan: Make the addrs_lock be per port (CVE-2026-23103) * kernel: KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use (CVE-2026-53360) * kernel: vsock/virtio: fix zerocopy completion for multi-skb sends (CVE-2026-53365) * kernel: NFSD: Fix SECINFO_NO_NAME decode error cleanup (CVE-2026-53398) * kernel: vsock/virtio: bind uarg before filling zerocopy skb (CVE-2026-63970) * kernel: igc: set tx buffer type for SMD frames (CVE-2026-64035) * kernel: vsock/vmci: fix UAF when peer resets connection during handshake (CVE-2026-64115) * kernel: SUNRPC: pin upper rpc_clnt across the TLS connect_worker (CVE-2026-72317) * kernel: udp: fix potential use-after-free in tunnel segmentation (CVE-2026-74705) * kernel: ipvlan: inherit needed_headroom and needed_tailroom from phy_dev (CVE-2026-74744) * kernel: nfsd: defer vfree of compound ops to fix rpc_status UAF (CVE-2026-89690) * kernel: nfsd: initialize copy-notify stateid before publishing it (CVE-2026-89669) * kernel: svcrdma: Reject inline replies that overflow the pull-up buffer (CVE-2026-89530) * kernel: nfsd: fix stale s2s_cp_stateids IDR entry for async COPY (CVE-2026-89676) * kernel: nfsd: revoke copy-notify stateids before dropping their reference (CVE-2026-89663) * kernel: nfsd: fix UAF in async copy cancel and shutdown (CVE-2026-89675) Bug Fix(es) and Enhancement(s): * mlxbf_bootctl: driver update to Linux v6.16 [Nvidia 10.2.z FEAT] (JIRA:RHEL-212709) * [GNR-D] missing interfaces tspll_cfg [rhel-10.2] (JIRA:RHEL-273805) 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.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: xfrm: hold dev ref until after transport_finish NF_HOOK (CVE-2026-31663) * kernel: smb: client: fix OOB reads parsing symlink error response (CVE-2026-31613) * kernel: RDMA/rxe: Fix race condition in QP timer handlers (CVE-2026-45910) * kernel: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (CVE-2026-46043) * kernel: RDMA/rxe: Reject unknown opcodes before ICRC processing (CVE-2026-46133) * kernel: RDMA/rxe: Reject non-8-byte ATOMIC_WRITE payloads (CVE-2026-46114) * kernel: xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx() (CVE-2026-53239) * kernel: ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() (CVE-2026-63924) * kernel: ipv6: exthdrs: refresh nh after handling HAO option (CVE-2026-63922) * kernel: ipv6: validate extension header length before copying to cmsg (CVE-2026-63920) * kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CVE-2026-64007) * kernel: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate() (CVE-2026-63921) * kernel: ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress() (CVE-2026-63984) * kernel: xfrm: input: hold netns during deferred transport reinjection (CVE-2026-63919) * kernel: ip6: vti: Use ip6_tnl.net in vti6_changelink() (CVE-2026-63917) * kernel: RDMA/rxe: Fix a use-after-free problem in rxe_mmap (CVE-2026-64582) * kernel: xfrm: fix stale skb->prev after async crypto steals a GSO segment (CVE-2026-68426) * kernel: nvmet-auth: reject short AUTH_RECEIVE buffers (CVE-2026-72130) * kernel: ipv6: fix use-after-free in ip6_finish_output2() (CVE-2026-80792) * kernel: RDMA/rxe: Fix responder UAF on IB_QP_MAX_DEST_RD_ATOMIC modify_qp (CVE-2026-80864) * kernel: RDMA/rxe: Fix OOB in free_rd_atomic_resources() (CVE-2026-80863) 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.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: xfrm: hold dev ref until after transport_finish NF_HOOK (CVE-2026-31663) * kernel: ALSA: 6fire: fix use-after-free on disconnect (CVE-2026-31581) * kernel: gfs2: Fix use-after-free in iomap inline data write path (CVE-2026-45984) * kernel: udf: fix partition descriptor append bookkeeping (CVE-2026-45991) * kernel: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (CVE-2026-46043) * kernel: RDMA/rxe: Reject unknown opcodes before ICRC processing (CVE-2026-46133) * kernel: sctp: purge outqueue on stale COOKIE-ECHO handling (CVE-2026-52924) * kernel: xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx() (CVE-2026-53239) * kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CVE-2026-64007) * kernel: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate() (CVE-2026-63921) * kernel: xfrm: input: hold netns during deferred transport reinjection (CVE-2026-63919) * kernel: ip6: vti: Use ip6_tnl.net in vti6_changelink() (CVE-2026-63917) * kernel: RDMA/rxe: Fix a use-after-free problem in rxe_mmap (CVE-2026-64582) * kernel: net: qrtr: restrict socket creation to the initial network namespace (CVE-2026-68294) * kernel: xfrm: fix stale skb->prev after async crypto steals a GSO segment (CVE-2026-68426) * kernel: scsi: libiscsi_tcp: Bound SCSI Response data segment to the connection buffer (CVE-2026-74556) * kernel: netfilter: flowtable: publish GC-visible tuple last (CVE-2026-74746) * kernel: RDMA/rxe: Fix responder UAF on IB_QP_MAX_DEST_RD_ATOMIC modify_qp (CVE-2026-80864) * kernel: RDMA/rxe: Fix OOB in free_rd_atomic_resources() (CVE-2026-80863) Bug Fix(es) and Enhancement(s): * xfs corruption from [xfs_trans_cancel] during inode allocation (JIRA:RHEL-257185) 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.

A buffer overflow vulnerability was identified and fixed in the Linux kernel ALSA firewire-motu driver affecting the hwdep_read() function for DSP events. The flaw allowed more bytes to be written to a user buffer than requested if the buffer was smaller than the event header size. Red Hat released a security update for Red Hat Enterprise Linux 8.6 and related variants to address this issue. The update clamps the copy size to the user-requested length, preventing the overflow. This fix is part of a broader kernel security update that addresses multiple vulnerabilities. The system must be rebooted after applying the update for the fix to take effect.

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.44 fixes various security issues: The following security issues were fixed: - CVE-2026-46116: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete (bsc#1267370). - CVE-2026-63802: blk-cgroup: fix UAF in __blkcg_rstat_flush() (bsc#1272283). - CVE-2026-63888: scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (bsc#1272391). - CVE-2026-63912: xfrm: esp: restore combined single-frag length gate (bsc#1272837). - CVE-2026-63917: ip6: vti: Use ip6_tnl.net in vti6_changelink() (bsc#1273015). - CVE-2026-63920: ipv6: validate extension header length before copying to cmsg (bsc#1273012). - CVE-2026-63921: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate() (bsc#1273011). - CVE-2026-63944: Bluetooth: hci_sync: fix UAF in hci_le_create_cis_sync (bsc#1273003). - CVE-2026-63971: sctp: fix race between sctp_wait_for_connect and peeloff (bsc#1272679). - CVE-2026-63994: tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]() (bsc#1273051). - CVE-2026-64000: net: hsr: fix potential OOB access in supervision frame handling (bsc#1273052). - CVE-2026-64011: nfc: llcp: Fix use-after-free in llcp_sock_release() (bsc#1276493). - CVE-2026-64114: ipv4: raw: reject IP_HDRINCL packets with ihl < 5 (bsc#1273833). - CVE-2026-64121: net: ifb: report ethtool stats over num_tx_queues (bsc#1273837). - CVE-2026-64189: netfilter: ipset: fix race between dump and ip_set_list resize (bsc#1272208). - CVE-2026-68121: pppoe: reload header pointer after dev_hard_header() (bsc#1275228). - CVE-2026-68202: ALSA: seq: close a re-opened queue timer in the destructor (bsc#1275162). - CVE-2026-74394: RDMA/srpt: fix integer overflow in immediate data length check (bsc#1277409). - CVE-2026-74612: veth: fix skb length accounting after XDP frag adjustment (bsc#1277506).

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.37.1 fixes various security issues: The following security issues were fixed: - CVE-2026-63888: scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (bsc#1272391). - CVE-2026-63917: ip6: vti: Use ip6_tnl.net in vti6_changelink() (bsc#1273015). - CVE-2026-63920: ipv6: validate extension header length before copying to cmsg (bsc#1273012). - CVE-2026-63921: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate() (bsc#1273011). - CVE-2026-64000: net: hsr: fix potential OOB access in supervision frame handling (bsc#1273052). - CVE-2026-64114: ipv4: raw: reject IP_HDRINCL packets with ihl < 5 (bsc#1273833). - CVE-2026-64121: net: ifb: report ethtool stats over num_tx_queues (bsc#1273837). - CVE-2026-68121: pppoe: reload header pointer after dev_hard_header() (bsc#1275228). - CVE-2026-72217: SUNRPC: Bound-check xdr_buf_to_bvec() stores before writing (bsc#1276299). - CVE-2026-74394: RDMA/srpt: fix integer overflow in immediate data length check (bsc#1277409). - CVE-2026-74612: veth: fix skb length accounting after XDP frag adjustment (bsc#1277506).

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.36.1 fixes various security issues: The following security issues were fixed: - CVE-2026-63802: blk-cgroup: fix UAF in __blkcg_rstat_flush() (bsc#1272283). - CVE-2026-63888: scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (bsc#1272391). - CVE-2026-63912: xfrm: esp: restore combined single-frag length gate (bsc#1272837). - CVE-2026-63917: ip6: vti: Use ip6_tnl.net in vti6_changelink() (bsc#1273015). - CVE-2026-63920: ipv6: validate extension header length before copying to cmsg (bsc#1273012). - CVE-2026-63921: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate() (bsc#1273011). - CVE-2026-63971: sctp: fix race between sctp_wait_for_connect and peeloff (bsc#1272679). - CVE-2026-63994: tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]() (bsc#1273051). - CVE-2026-64000: net: hsr: fix potential OOB access in supervision frame handling (bsc#1273052). - CVE-2026-64114: ipv4: raw: reject IP_HDRINCL packets with ihl < 5 (bsc#1273833). - CVE-2026-64121: net: ifb: report ethtool stats over num_tx_queues (bsc#1273837). - CVE-2026-64189: netfilter: ipset: fix race between dump and ip_set_list resize (bsc#1272208). - CVE-2026-68121: pppoe: reload header pointer after dev_hard_header() (bsc#1275228). - CVE-2026-68202: ALSA: seq: close a re-opened queue timer in the destructor (bsc#1275162). - CVE-2026-72217: SUNRPC: Bound-check xdr_buf_to_bvec() stores before writing (bsc#1276299). - CVE-2026-74394: RDMA/srpt: fix integer overflow in immediate data length check (bsc#1277409). - CVE-2026-74612: veth: fix skb length accounting after XDP frag adjustment (bsc#1277506).

A high severity vulnerability (CVE-2026-22984) in the Linux kernel's libceph component was resolved by adding explicit bounds checking to prevent potential out-of-bounds reads in the handle_auth_done() function. This vulnerability could lead to serious impacts including confidentiality, integrity, and availability violations. The issue affects multiple Linux kernel versions prior to specific patched releases. Ubuntu has released security updates addressing this and numerous other kernel vulnerabilities. Users are advised to update to the fixed kernel versions and reboot their systems. Due to ABI changes, recompilation of third-party kernel modules may be necessary.