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Red Hat Security Advisory

RHSA-2026:77219

kernel security, bug fix, and enhancement update

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

Fixed in

Fixes 16 records

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: smb: client: fix query_info() replay double-free A response-bearing attempt can return a replayable error and free its response buffer.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00457 Published 2026-07-25 Fixed in 6.6.145, 6.12.96 +3 CWE-415
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_ioctl() replay A response-bearing attempt can return a replayable error and free its response buffer.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00457 Published 2026-07-25 Fixed in 6.6.145, 6.12.96 +3 CWE-415
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_flush() replay SMB2_flush() keeps its response buffer bookkeeping across replay attempts.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00457 Published 2026-07-25 Fixed in 6.6.145, 6.12.96 +3 CWE-415
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 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: 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: 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 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
TI-2026-18877 CVE-2026-23442 · GHSA-prgg-rgfw-vr94

ipv6: add NULL checks for idev in SRv6 paths

Priority LOW 24

In the Linux kernel, the following vulnerability has been resolved: ipv6: add NULL checks for idev in SRv6 paths __in6_dev_get() can return NULL when the device has no IPv6 configuration (e.g.

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.00134 Published 2026-04-03 Partial fix · 5.10.258, 5.15.209 +6 CWE-476
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