Linux Distros Unpatched Vulnerability : CVE-2026-89555

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mpls: reload header after pskbmaypull mplsselectmultipath calls mplsmultipathhash to choose a nexthop when an MPLS route has multiple nexthops. While walking th...

CVE-2026-89555

In the Linux kernel, the following vulnerability has been resolved: mpls: reload header after pskbmaypull mplsselectmultipath calls mplsmultipathhash to choose a nexthop when an MPLS route has multiple nexthops. While walking the MPLS label stack, the hash routine caches hdr for the current label...

CVE-2026-89555 mpls: reload header after pskb_may_pull()

In the Linux kernel, the following vulnerability has been resolved: mpls: reload header after pskbmaypull mplsselectmultipath calls mplsmultipathhash to choose a nexthop when an MPLS route has multiple nexthops. While walking the MPLS label stack, the hash routine caches hdr for the current label...

CVE-2026-81000

In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom tungetuser uses tun-align both as skb headroom and when choosing how much packet data to keep linear. OVS can propagate an oversized headroom request from another port to TUN or TAP. When align is...

PT-2026-90108

In the Linux kernel, the following vulnerability has been resolved: net: cap advertised IP tunnel headroom IP tunnel devices derive their advertised needed headroom from lower output devices. A stack of user-created devices can make the derived value larger than the 16-bit skb header offsets can...

SUSE CVE-2026-68476

In the Linux kernel, the following vulnerability has been resolved: ipvs: reload ip header after head reallocation ipvsgetoutrt calls skbensurewritable which may reallocate skb-head...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: - Ensured that erspanbasehdr is present in skb-head. The issue is that ip6erspanrcv and erspanrcv no longer ensures that erspanbasehdr is present in the linear part of skb-head before retrieving the @ver field from it. Add the...

CVE-2026-68476

In the Linux kernel, the following vulnerability has been resolved: ipvs: reload ip header after head reallocation ipvsgetoutrt calls skbensurewritable which may reallocate skb-head...

CVE-2026-74269 bnxt: fix head underflow on XDP head-grow

In the Linux kernel, the following vulnerability has been resolved: bnxt: fix head underflow on XDP head-grow The xdp.py test testxdpnativeadjstheadgrowdata crashes when run on a bnxt machine and also crashes in NIPA. It seems that the bug is an underflow in bnxtrxmultipageskb, which builds the s...

SUSE CVE-2026-68121

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...

CVE-2026-68302

In the Linux kernel, the following vulnerability has been resolved: amt: re-read skb header pointers after every pull Several AMT receive and transmit paths cache a pointer into the skb head iphdr, ipv6hdr, ethhdr or the AMT message header and then call a helper that can reallocate that head befo...

CVE-2026-68121

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...

CVE-2026-68121 pppoe: reload header pointer after dev_hard_header()

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...

EUVD-2026-55502

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...

Linux Distros Unpatched Vulnerability : CVE-2026-68121

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are...

PT-2026-69521

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the pppoe sendmsg function where a pointer to the PPPoE header is saved before calling dev hard header. Because device header callbacks can reallocate the skb head, an...

CVE-2026-64554 netfilter: bridge: fix stale prevhdr pointer in br_ip6_fragment()

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: fix stale prevhdr pointer in brip6fragment brip6fragment gets prevhdr, a pointer into the skb head, from ip6find1stfragopt, then calls skbchecksumhelp. For a cloned skb skbchecksumhelp reallocates the head via...

SUSE CVE-2026-63922

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh after handling HAO option ip6parsetlv caches skbnetworkheaderskb in nh while walking IPv6 TLVs. ipv6desthao may call pskbexpandhead for a cloned skb, which can move the skb head and invalidate the cached...

CVE-2026-63993 vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu()

In the Linux kernel, the following vulnerability has been resolved: vxlan: do not reuse cached iphdr value after skbtunnelcheckpmtu skbtunnelcheckpmtu can change skb-head. Reusing oldiph afer skbtunnelcheckpmtu can cause an UAF. Use instead iphdrskb as done in drivers/net/bareudp.c and...

CVE-2026-63922 ipv6: exthdrs: refresh nh after handling HAO option

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh after handling HAO option ip6parsetlv caches skbnetworkheaderskb in nh while walking IPv6 TLVs. ipv6desthao may call pskbexpandhead for a cloned skb, which can move the skb head and invalidate the cached...