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Red Hat Security Advisory

RHSA-2026:77218

kernel security update

Released 2026-10-07 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 21 records

Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: reject short AUTH_RECEIVE buffers nvmet_execute_auth_receive() trusts the AUTH_RECEIVE allocation length after checking only that it is nonz…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00803 Published 2026-08-15 Partial fix · 6.1.191, 6.6.160 +4
Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() ipv6_hop_jumbo() calls pskb_trim_rcsum(), which can change skb pointers.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00714 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-822
Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh after handling HAO option ip6_parse_tlv() caches skb_network_header(skb) in nh while walking IPv6 TLVs.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00714 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-416
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: xfrm: fix stale skb->prev after async crypto steals a GSO segment skb_gso_segment() leaves the segment list head with ->prev pointing at the last segmen…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00498 Published 2026-08-10 Partial fix · 6.1.191, 6.6.160 +4 CWE-416
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: refresh tcphdr after skb_ensure_writable synproxy_tstamp_adjust() rewrites the TCP timestamp option in place and then patches the T…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00514 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-416
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress() ipv6_rpl_srh_decompress() computes: outhdr->hdrlen = (((n + 1) * sizeof(struct in6_addr)) >>…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00514 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-190
Priority MEDIUM 46

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv rxe_rcv() currently checks only that the incoming packet is at least header_size(pkt) b…

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.00514 Published 2026-05-27 Partial fix · 5.10.258, 5.15.209 +6 CWE-190
Priority MEDIUM 41

In the Linux kernel, the following vulnerability has been resolved: xfrm: input: hold netns during deferred transport reinjection Transport-mode reinjection stores a struct net pointer in skb->cb and uses it later from x…

CVSS 3.1HIGH 8.8 Network Low privileges No interaction EPSS 0.0065 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-416
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Reject unknown opcodes before ICRC processing Even after applying commit 7244491dab34 ("RDMA/rxe: Validate pad and ICRC before payload_size()…

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00574 Published 2026-05-28 Partial fix · 5.10.258, 5.15.209 +6 CWE-125
Priority LOW 39

In the Linux kernel, the following vulnerability has been resolved: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate().

CVSS 3.1HIGH 8.8 Local Low privileges No interaction EPSS 0.00158 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-862
Priority LOW 39

In the Linux kernel, the following vulnerability has been resolved: ip6: vti: Use ip6_tnl.net in vti6_changelink().

CVSS 3.1HIGH 8.8 Local Low privileges No interaction EPSS 0.00169 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-416
Priority LOW 39

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Reject non-8-byte ATOMIC_WRITE payloads atomic_write_reply() at drivers/infiniband/sw/rxe/rxe_resp.c unconditionally dereferences 8 bytes at p…

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00467 Published 2026-05-28 Fixed in 6.6.140, 6.12.88 +3 CWE-125
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix a use-after-free problem in rxe_mmap rxe_mmap() removes a rxe_mmap_info struct from the pending_mmaps list and releases pending_lock while…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00168 Published 2026-08-05 Partial fix · 5.10.265, 5.15.216 +6 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx() Fix the race by pruning the bin while still holding xfrm_policy_lock, before…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00102 Published 2026-06-25 Partial fix · 5.10.259, 5.15.210 +6 CWE-362
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix race condition in QP timer handlers I encontered the following warning: WARNING: drivers/infiniband/sw/rxe/rxe_task.c:249 at rxe_sched_tas…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00125 Published 2026-05-27 Fixed in 6.6.128, 6.12.75 +3 CWE-362
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: xfrm: hold dev ref until after transport_finish NF_HOOK After async crypto completes, xfrm_input_resume() calls dev_put() immediately on re-entry before…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00224 Published 2026-04-24 Partial fix · 3.3, 3.17 +7 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix OOB reads parsing symlink error response When a CREATE returns STATUS_STOPPED_ON_SYMLINK, smb2_check_message() returns success without…

CVSS 3.1HIGH 8.1 Network No auth User interaction EPSS 0.00387 Published 2026-04-24 Partial fix · 6.1, 6.1.175 +6 CWE-125
Priority LOW 30

In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6_datagram_recv_specific_ctl() builds IPV6_{HOPOPTS,DSTOPTS,RTHDR} cmsgs (and their IPV6…

CVSS 3.1HIGH 7.1 Local Low privileges No interaction EPSS 0.00172 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-125
Priority LOW 22

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix responder UAF on IB_QP_MAX_DEST_RD_ATOMIC modify_qp rxe_qp_from_attr() handles IB_QP_MAX_DEST_RD_ATOMIC outside the IB_QP_STATE path, so i…

CVSS — EPSS 0.00197 Published 2026-09-04 Partial fix · 6.1.191, 6.6.160 +5
Priority LOW 22

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix OOB in free_rd_atomic_resources() free_rd_atomic_resources() iterates using qp->attr.max_dest_rd_atomic.

CVSS — EPSS 0.00182 Published 2026-09-04 Partial fix · 5.10.269, 5.15.220 +7
Priority LOW 22

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix use-after-free in ip6_finish_output2() ip6_finish_output2() caches a pointer to the IPv6 destination address (daddr) before invoking lwtunnel_…

CVSS — EPSS 0.00195 Published 2026-09-04 Partial fix · 5.10.267, 5.5 +8