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Red Hat Security Advisory

RHSA-2026:85773

kernel security, bug fix, and enhancement update

Released 2026-10-20 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 10 records

Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: sctp: stop processing a packet once its association is deleted sctp_endpoint_bh_rcv() looks the association up only when chunk->asoc is NULL, and caches…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.005 Published 2026-09-11 Partial fix · 5.10.270, 5.15.221 +6
TI-2026-52534 CVE-2026-74752 · GHSA-3494-mfxc-798j

sctp: validate cookie AUTH state before use

Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: sctp: validate cookie AUTH state before use When cookie authentication is disabled, COOKIE_ECHO restores fixed-size AUTH fields directly from peer-contr…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00524 Published 2026-08-26 Partial fix · 6.6.160, 6.12.114 +2
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: sctp: keep chunk->transport in step with the list it is queued on __sctp_outq_flush_rtx() moves a gap-acked chunk onto another transport's transmitted l…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.005 Published 2026-08-22 Partial fix · 5.10.265, 5.15.216 +6
Priority MEDIUM 46

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject a tree connect response whose byte count is too small CIFSTCon() bounds its strnlen() over the byte area with the server's ByteCount…

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.00491 Published 2026-09-11 Partial fix · 6.1.191, 6.6.160 +4
TI-2026-45574 CVE-2026-64009 · GHSA-666q-fgc6-3x4w

xfrm: Check for underflow in xfrm_state_mtu

Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: xfrm: Check for underflow in xfrm_state_mtu Leo Lin reported OOB write issue in esp component: xfrm_state_mtu() returns u32 but performs its arithmetic…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00144 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-191
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: xfrm: espintcp: do not reuse an in-progress partial send espintcp keeps a single in-flight transmit in ctx->partial.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00096 Published 2026-06-24 Partial fix · 5.10.259, 5.15.210 +6 CWE-362
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: hold reference on ct until flow is released nf_ct_put() releases the ct->ext area inmediately, the rcu typesafe semantics also all…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00139 Published 2026-10-06 Partial fix · 5.10.271, 5.15.222 +6
TI-2026-63171 CVE-2026-93817 · GHSA-r45r-rr2w-7hc6

perf: Fix addr_filter_ranges lifetime

Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: perf: Fix addr_filter_ranges lifetime Lee Jia Jie reported that since event::addr_filter_ranges is used under RCU, it should be RCU freed.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00129 Published 2026-09-24 Partial fix · 6.1.191, 6.6.160 +3
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state sashiko reports: "nfnl_log_net_exit() calls nf_log_unset(), which clears…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00129 Published 2026-09-24 Partial fix · 5.15.222, 6.1.189 +4
Priority LOW 30

In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_ti: fix heap overflow in get_manuf_info() get_manuf_info() reads le16_to_cpu(rom_desc->Size) bytes from the device I2C EEPROM into a buf…

CVSS 3.1MEDIUM 6.8 Physical No auth No interaction EPSS 0.00271 Published 2026-06-25 Partial fix · 5.10.259, 5.15.210 +6 CWE-787