Red Hat Security AdvisoryRHSA-2026:84793
kernel security update
Released 2026-10-19 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.175.1.el8_8, kernel-4.18.0-477.175.1.el8_8, kernel-abi-stablelists-4.18.0-477.175.1.el8_8 +14
- Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.175.1.el8_8, kernel-4.18.0-477.175.1.el8_8, kernel-abi-stablelists-4.18.0-477.175.1.el8_8 +14
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
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