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Red Hat Security Advisory

RHSA-2026:84793

kernel security update

Released 2026-10-19 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 7 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
TI-2026-45368 CVE-2026-63802 · GHSA-22rm-57qw-fv2w

blk-cgroup: fix UAF in __blkcg_rstat_flush()

Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix UAF in __blkcg_rstat_flush() When multiple blkgs in the same blkcg are released concurrently, a use-after-free can occur.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00102 Published 2026-07-19 Partial fix · 6.4, 6.6.144 +4 CWE-362
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: dm cache policy smq: fix missing locks in invalidating cache blocks In passthrough mode, the policy invalidate_mapping operation is called simultaneousl…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00097 Published 2026-06-24 Partial fix · 5.10.258, 5.15.209 +6 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
Priority LOW 30

In the Linux kernel, the following vulnerability has been resolved: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() target_tg_pt_gp_members_show() formats LUN paths with snprintf() into a 256-b…

CVSS 3.1HIGH 7.1 Local Low privileges No interaction EPSS 0.00142 Published 2026-05-28 Partial fix · 5.10.258, 5.15.209 +6 CWE-126
Priority LOW 30

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table() nfnl_cthelper_dump_table() has a 'goto restart' that jumps to a label inside t…

CVSS 3.1HIGH 7.1 Local Low privileges No interaction EPSS 0.00132 Published 2026-05-08 Partial fix · 5.10.253, 5.15.203 +6 CWE-125