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Red Hat Security Advisory

RHSA-2026:77689

kernel security, bug fix, and enhancement update

Released 2026-10-08 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 14 records

Priority HIGH 69

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix zerocopy completion for multi-skb sends When a large message is fragmented into multiple skbs, the zerocopy uarg is only allocated and…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00197 Published 2026-07-13 Fixed in 6.12.97, 6.18.34 +2 CWE-404
Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: pin upper rpc_clnt across the TLS connect_worker The TLS connect path has a use-after-free: nothing pins the upper rpc_clnt across the delayed c…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00644 Published 2026-08-15 Partial fix · 6.6.145, 6.12.97 +3
Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix SECINFO_NO_NAME decode error cleanup nfsd4_decode_secinfo_no_name() currently initializes sin_exp after decoding sin_style.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00543 Published 2026-07-19 Partial fix · 5.10.260, 5.15.211 +6 CWE-665
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Reject inline replies that overflow the pull-up buffer An RPC-over-RDMA client can request a reply, such as an NFS READ payload, without provid…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00491 Published 2026-09-11 Partial fix · 4.20, 4.21 +6
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: ipvlan: inherit needed_headroom and needed_tailroom from phy_dev ipvlan devices inherit hard_header_len from phy_dev during ipvlan_init(), but leave nee…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00512 Published 2026-08-26 Partial fix · 6.1.184, 6.6.153 +4
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init() In idpf_ptp_init(), read_dev_clk_lock is initialized after ptp_schedule_worker() had alread…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00435 Published 2026-07-19 Fixed in 6.18.34, 7.0.11 +1 CWE-666
TI-2026-45600 CVE-2026-64035 · GHSA-85cw-fhvw-f94j

igc: set tx buffer type for SMD frames

Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: igc: set tx buffer type for SMD frames Sashiko pointed out that igc_fpe_init_smd_frame() initializes igc_tx_buffer fields for an SMD skb, but does not s…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00442 Published 2026-07-19 Fixed in 6.18.34, 7.0.11 +1 CWE-665
Priority MEDIUM 43

In the Linux kernel, the following vulnerability has been resolved: nfsd: initialize copy-notify stateid before publishing it nfsd4_copy_notify() finished initializing the cpntf state after nfs4_alloc_init_cpntf_state()…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00694 Published 2026-09-11 Partial fix · 5.10.270, 5.15.221 +6
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use As per the GHCB spec, when using GHCB v2+ require the software scratch area to reside in th…

CVSS 3.1HIGH 8.8 Local Low privileges No interaction EPSS 0.00297 Published 2026-07-04 Fixed in 6.12.93, 6.18.35 +2 CWE-787
Priority LOW 39

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: fix UAF when peer resets connection during handshake vmci_transport_recv_connecting_server() returned err = 0 for a peer RST in its default…

CVSS 3.1HIGH 8.8 Local Low privileges No interaction EPSS 0.00135 Published 2026-07-19 Partial fix · 5.10.258, 5.15.209 +6 CWE-416
Priority LOW 38

In the Linux kernel, the following vulnerability has been resolved: nfsd: revoke copy-notify stateids before dropping their reference Copy-notify stateids live in the s2s_cp_stateids IDR and on their parent stid's sc_cp_…

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.00455 Published 2026-09-11 Partial fix · 5.10.270, 5.15.221 +6
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: bind uarg before filling zerocopy skb virtio_transport_send_pkt_info() allocates or reuses the zerocopy uarg before entering the send loop…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00176 Published 2026-07-19 Fixed in 6.12.97, 6.18.35 +2 CWE-401
TI-2026-18540 CVE-2026-23103 · GHSA-ghmm-m363-9645

ipvlan: Make the addrs_lock be per port

Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Make the addrs_lock be per port Make the addrs_lock be per port, not per ipvlan dev.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00128 Published 2026-02-04 Partial fix · 5.10.249, 5.15.199 +5 CWE-362
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: nfsd: defer vfree of compound ops to fix rpc_status UAF The rpc_status netlink dumpit walks every in-flight svc_rqst under rcu_read_lock and, for NFSv4…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00163 Published 2026-09-11 Partial fix · 6.12.109, 6.18.50 +2