Red Hat Security AdvisoryRHSA-2026:68531
kernel security update
Released 2026-09-17 · Red Hat rating Important · View on Red Hat →
Fixes 22 records
Priority MEDIUM 50
In the Linux kernel, the following vulnerability has been resolved: ipv6: sit: reload inner IPv6 header after GSO offloads ipip6_tunnel_xmit() caches the inner IPv6 header pointer at function entry and continues using it…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00576 · Published 2026-06-25 · Partial fix · 5.10.259, 5.15.210 +6 CWE-416
Priority MEDIUM 50
In the Linux kernel, the following vulnerability has been resolved: IB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN In drivers/infiniband/ulp/isert/ib_isert.c, isert_login_recv_done() computes the login request…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00761 · Published 2026-06-25 · Partial fix · 5.10.259, 5.15.210 +6 CWE-839
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 47
In the Linux kernel, the following vulnerability has been resolved: netfilter: require Ethernet MAC header before using eth_hdr() `ip6t_eui64`, `xt_mac`, the `bitmap:ip,mac`, `hash:ip,mac`, and `hash:mac` ipset types, an…
CVSS 3.1CRITICAL 9.4· Network · No auth · No interaction · EPSS 0.00435 · Published 2026-06-25 · Partial fix · 5.15.210, 6.1.176 +5 CWE-125
Priority MEDIUM 46
In the Linux kernel, the following vulnerability has been resolved: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP Yizhou Zhao reported that simply having one RAW socket on protocol IPPROTO_RAW (255) was dan…
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00465 · Published 2026-06-03 · Partial fix · 6.1.187, 6.6.128 +4 CWE-20
Priority MEDIUM 42
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack_irc: fix possible out-of-bounds read When parsing fails after we've matched the command string we should bail out instead of trying…
CVSS 3.1HIGH 8.2· Network · No auth · No interaction · EPSS 0.00523 · Published 2026-06-25 · Partial fix · 5.10.259, 5.15.210 +6 CWE-125
Priority MEDIUM 42
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() In decode_choice(), the boundary check before get_len() uses the variable `len`, which is…
CVSS 3.1HIGH 8.2· Network · No auth · No interaction · EPSS 0.00463 · Published 2026-05-06 · Partial fix · 5.10.252, 5.15.202 +6 CWE-125
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: ipv6: mcast: Fix use-after-free when processing MLD queries When processing an MLD query, a pointer to the multicast group address is retrieved when ini…
CVSS 3.1HIGH 8.8· Adjacent network · No auth · No interaction · EPSS 0.00262 · Published 2026-06-25 · Partial fix · 5.10.269, 5.15.210 +6 CWE-416
Priority MEDIUM 40
In the Linux kernel, the following vulnerability has been resolved: ppp: require CAP_NET_ADMIN in target netns for unattached ioctls /dev/ppp open is currently authorized against file->f_cred->user_ns, while unattached a…
CVSS 3.1HIGH 8.8· Local · Low privileges · No interaction · EPSS 0.00273 · Published 2026-06-24 · Partial fix · 5.10.258, 5.15.209 +6 CWE-863
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: flow_dissector: do not dissect PPPoE PFC frames RFC 2516 Section 7 states that Protocol Field Compression (PFC) is NOT RECOMMENDED for PPPoE.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00449 · Published 2026-06-08 · Partial fix · 6.1.175, 6.6.140 +4 CWE-198
Priority LOW 36
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_policy: fix strict mode inbound policy matching match_policy_in() walks sec_path entries from the last transform to the first one, but str…
CVSS 3.1HIGH 8.3· Network · Low privileges · No interaction · EPSS 0.00299 · Published 2026-06-24 · Partial fix · 5.10.258, 5.15.209 +6 CWE-682
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: net: slip: serialize receive against buffer reallocation sl_realloc_bufs() replaces rbuff and updates buffsize while holding sl->lock.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00107 · Published 2026-08-10 · Partial fix · 5.10.265, 5.15.216 +6 CWE-362
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() ipv4_sysctl_exit_net() is currently freeing net->ipv4.sysctl_local_…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.0013 · 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: 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: ALSA: timer: Fix UAF at snd_timer_user_params() At releasing a timer object, e.g.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00097 · Published 2026-06-25 · Partial fix · 6.12.94, 6.18.36 +2 CWE-362
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible UaF in addrconf_permanent_addr() The mentioned helper try to warn the user about an exceptional condition, but the message is del…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00157 · Published 2026-05-08 · Partial fix · 5.10.253, 5.15.203 +6 CWE-416
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: ipvlan: Make the addrs_lock be per port Make the addrs_lock be per port, not per ipvlan dev.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00128 · Published 2026-02-04 · Partial fix · 5.10.249, 5.15.199 +5 CWE-362
Priority LOW 30
In the Linux kernel, the following vulnerability has been resolved: net: guard timestamp cmsgs to real error queue skbs skb_is_err_queue() treats PACKET_OUTGOING as the sole marker for an skb from sk_error_queue.
CVSS 3.1HIGH 7.1· Local · Low privileges · No interaction · EPSS 0.00136 · Published 2026-06-25 · Partial fix · 4.11, 5.10.259 +7 CWE-125