CVE-2026-68300

Summary: CVE-2026-68300 in the Linux kernel concerns SCTP authentication. The function sctp_auth_chunk_verify() incorrectly returns true when auth_chunk is NULL, allowing authentication to be bypassed under certain conditions (e.g., skb_clone() failure in BH path or absence of an AUTH before COOK...

EUVD-2026-55378

In the Linux kernel, the following vulnerability has been resolved: drm/dp/mst: fix OOB reads on 2-byte fields in sideband reply parsers Three sideband reply parsers read 16-bit fields as: val = raw-msgidx msgidx+1; and check bounds only after the fact. When idx == raw-curlen, raw-msgidx+1 reads...

CVE-2026-68244

The CVE relates to the Linux kernel DRM/I915 GEM component. After a BALANCE/PARALLEL_SUBMIT extension during context creation, an error in processing the next user extension could leak the siblings[] array; this has been resolved. The fix is cherry-picked from commit aa65e0a4b51b3b54b53e4142aaa2d...

CVE-2026-68162 sctp: avoid auth_enable sysctl UAF during netns teardown

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid authenable sysctl UAF during netns teardown procsctpdoauth updates the SCTP control socket after changing net.sctp.authenable. The handler gets the per-net SCTP state from ctl-data, so an already opened sysctl file ca...

EUVD-2026-55547

In the Linux kernel, the following vulnerability has been resolved: sctp: close UDP tunnel sockets during netns teardown procsctpdoudpport starts per-net SCTP UDP tunneling sockets when net.sctp.udpport is set, and stops/restarts them when the sysctl value changes. The netns exit path does not st...

CVE-2026-68161

Summary of CVE-2026-68161 : In the Linux kernel, SCTP UDP tunnel sockets created per-net SCTP UDP port (net.sctp.udp_port) are not stopped when a network namespace (netns) is torn down, potentially leaving sockets installed during teardown. The root cause is that the netns exit path does not stop...

EUVD-2026-55526

In the Linux kernel, the following vulnerability has been resolved: net: slip: serialize receive against buffer reallocation slreallocbufs replaces rbuff and updates buffsize while holding sl-lock. slipreceivebuf reads those fields and writes through rbuff without holding the lock. An MTU change...

CVE-2026-68142

The CVE concerns the Linux kernel geneve driver. A local attacker with CAP_NET_ADMIN in one network namespace can bypass permission checks and modify a geneve network device in a different namespace, potentially enabling unauthorized network configuration changes or disruption. The fix gates the ...

EUVD-2026-55518

In the Linux kernel, the following vulnerability has been resolved: net/x25: fix use-after-free in x25killbyneigh x25killbyneigh walks the global X.25 socket list looking for sockets attached to a terminating neighbour. x25listlock protects list membership while the lookup is in progress, but it...

CVE-2026-68137 net/x25: fix use-after-free in x25_kill_by_neigh()

In the Linux kernel, the following vulnerability has been resolved: net/x25: fix use-after-free in x25killbyneigh x25killbyneigh walks the global X.25 socket list looking for sockets attached to a terminating neighbour. x25listlock protects list membership while the lookup is in progress, but it...

CVE-2026-68137 net/x25: fix use-after-free in x25_kill_by_neigh()

In the Linux kernel, the following vulnerability has been resolved: net/x25: fix use-after-free in x25killbyneigh x25killbyneigh walks the global X.25 socket list looking for sockets attached to a terminating neighbour. x25listlock protects list membership while the lookup is in progress, but it...

CVE-2026-68134

The CVE-2026-68134 entry concerns the Linux kernel ptp_s390 module. The vulnerability arises from a missing facility check that could allow the physical clock to be registered even when facility 28 is not installed or PTFF QPT is unavailable. The public details in the connected sources indicate t...

CVE-2026-68134 ptp: ptp_s390: Add missing facility check

In the Linux kernel, the following vulnerability has been resolved: ptp: ptps390: Add missing facility check Only register the physical clock when facility 28 is installed and PTFF QAF returns that PTFF QPT is available...

EUVD-2026-55515

In the Linux kernel, the following vulnerability has been resolved: ptp: ptps390: Add missing facility check Only register the physical clock when facility 28 is installed and PTFF QAF returns that PTFF QPT is available...

CVE-2026-68133

The CVE concerns the Linux kernel ice driver’s PTP handling. A PF reset when PTP state is ICE_PTP_UNINIT could cause ice_ptp_rebuild() to set the state to ICE_PTP_ERROR, producing a PTP release call trace during driver unload (ice_ptp_release -> ice_deinit_features.part.0 -> ice_remove). Th...

EUVD-2026-55511

In the Linux kernel, the following vulnerability has been resolved: ksmbd: defer destroyprevioussession until after NTLM authentication In ntlmauthenticate, destroyprevioussession is called using a user pointer resolved from the client-supplied NTLM blob username field before the NTLMv2 response ...

CVE-2026-68121

Summary of CVE-2026-68121 (Linux kernel, PPPoE): A vulnerability arises when device header callbacks reallocate the skb head after PPPoE header is referenced, causing a stale pointer to the PPPoE header used by pppoe_sendmsg(). This can occur if a send is blocked in copy_from_user() while a non-E...

EUVD-2026-55501

In the Linux kernel, the following vulnerability has been resolved: rtase: Workaround for TX hang caused by hardware packet parsing The hardware performs packet parsing before packet transmission. Parsing incomplete IPv4, IPv6, TCP, or UDP headers may trigger a TX hang because the hardware parser...

CVE-2026-68119 tcp: initialize standalone TCP-AO response padding

In the Linux kernel, the following vulnerability has been resolved: tcp: initialize standalone TCP-AO response padding tcpv4sendack and tcpv6sendresponse construct standalone TCP responses with TCP-AO options. The option length carries the actual MAC length, but the TCP header length includes the...

CVE-2026-68100 ksmbd: validate num_subauth when copying ACE in set_ntacl_dacl

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate numsubauth when copying ACE in setntacldacl setntacldacl copies each ACE from the attacker-controlled stored security descriptor verbatim into the response DACL without checking sid.numsubauth. The ACE bytes...