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Red Hat Security Advisory

RHSA-2026:83156

kernel security update

Released 2026-10-14 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 18 records

Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Validate Read chunk positions before reconstruction The RPC/RDMA Read chunk position field is supplied by the remote client and stored verbatim…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00682 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: 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 48

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_lookup: fix catchall element handling with inverted lookups nft_lookup_eval() decides whether a lookup matched (`found`) from the direct…

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.00569 Published 2026-08-15 Partial fix · 6.1.191, 6.6.160 +4
Priority MEDIUM 43

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during blocked-lock reaping A bare lock owner -- its only remaining reference a blocked lock on nn->blocked_locks_lr…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00484 Published 2026-09-16 Partial fix · 6.6.160, 6.12.111 +3
Priority MEDIUM 42

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry svcauth_gss_decode_credbody() writes the caller's rpc_gss_wire_cred field by field…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00467 Published 2026-09-24 Partial fix · 6.6.157, 6.12.109 +3
Priority MEDIUM 41

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic: Handle race between interrupt affinity change and LPI disabling Hyunwoo Kim reports some really bad races should the following situati…

CVSS 3.1CRITICAL 9.3 Local No auth No interaction EPSS 0.00185 Published 2026-08-15 Partial fix · 6.1.191, 6.6.160 +4
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Reject Write/Reply chunks with segcount 0 A peer can send a Write or Reply chunk whose segcount field is zero.

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.00501 Published 2026-09-24 Partial fix · 6.1.191, 6.6.160 +4
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: defer link RX stats percpu free to RCU sta_remove_link() frees a removed MLO link's RX stats percpu buffer right away, but defers only t…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00306 Published 2026-08-10 Partial fix · 6.1.191, 6.6.160 +4 CWE-416
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: net/iucv: fix use-after-free of a severed iucv_path af_iucv queues not-yet-received message notifications on iucv->message_q, each holding a raw pointer…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00275 Published 2026-08-10 Partial fix · 5.10.265, 5.15.216 +6 CWE-416
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bounds-check link_id in ieee80211_ml_epcs IEEE80211_MLE_STA_EPCS_CONTROL_LINK_ID is 0x000f, so link_id extracted from a PRIO_ACCESS ML e…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.0024 Published 2026-07-19 Partial fix · 6.18.34, 7.0.11 +1 CWE-125
Priority LOW 36

In the Linux kernel, the following vulnerability has been resolved: net/smc: carry oversized SMC-Rv2 LLC messages in the queue entry smc_llc_rmt_delete_rkey() and smc_llc_save_add_link_rkeys() read the part of a v2 messa…

CVSS 3.1HIGH 8.2 Network No auth No interaction EPSS 0.00526 Published 2026-09-11 Fixed in 6.18.50, 7.2.4 +1
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/iucv: filter frames in afiucv_hs_rcv() by ingress device afiucv_hs_rcv() selects a socket from iucv_sk_list by matching four 8-byte name fields in t…

CVSS 3.1HIGH 8.1 Adjacent network No auth No interaction EPSS 0.00309 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: ALSA: usx2y: bound the hwdep mmap fault offset snd_us428ctls_vm_fault() turns the faulting page offset into a kernel address with no bound of any kind:…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00129 Published 2026-08-22 Partial fix · 5.10.266, 5.15.216 +6
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get The ipc_control_data buffer is allocated as kzalloc(max_size), where max_size covers the…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00182 Published 2026-08-15 Partial fix · 6.1.184, 6.6.145 +4
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: use wiphy work for socket owner autodisconnect nl80211_netlink_notify() walks the cfg80211 wireless device list when a NETLINK_GENERIC s…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00169 Published 2026-08-10 Partial fix · 6.1.191, 6.6.160 +4 CWE-662
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/sched: act_tunnel_key: Defer dst_release to RCU callback Fix a race-condition use-after-free in tunnel_key_release_params().

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00128 Published 2026-08-10 Partial fix · 4.20, 4.21 +8 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: fix use-after-free in advance_sched() on schedule switch In advance_sched(), when should_change_schedules() returns true, switch_sche…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.0013 Published 2026-06-24 Partial fix · 5.10.258, 5.15.209 +6 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/sched: act_ct: Only release RCU read lock after ct_ft When looking up a flow table in act_ct in tcf_ct_flow_table_get(), rhashtable_lookup_fast() in…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00105 Published 2026-06-09 Partial fix · 5.10.258, 5.15.209 +6 CWE-362