Red Hat Security AdvisoryRHSA-2026:77690
kernel security, bug fix, and enhancement update
Released 2026-10-08 · Red Hat rating Important · View on Red Hat →
Fixes 16 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: nfsd: fix stale s2s_cp_stateids IDR entry for async COPY For an async COPY, nfsd4_copy() called nfs4_init_copy_state() before dup_copy_fields(), so the…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00491 · Published 2026-09-11 · Partial fix · 6.1.191, 6.6.160 +4
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: nfsd: fix UAF in async copy cancel and shutdown An async copy could be freed or used after free while a teardown caller (OFFLOAD_CANCEL, nfsd4_shutdown_…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00442 · Published 2026-09-11 · Partial fix · 6.18.51, 7.2.4 +1
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: udp: fix potential use-after-free in tunnel segmentation __skb_udp_tunnel_segment() gets the UDP header before ensuring the tunnel header is in the skb…
CVSS 3.1CRITICAL 10.0· Network · No auth · No interaction · EPSS 0.005 · Published 2026-08-22 · Fixed in 5.10.265, 5.15.216 +6
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
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