CVE-2026-63976

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: clear chan-ident on ECRED reconfiguration success l2capecredreconfrsp returns early on success without clearing chan-ident. Every other L2CAP response handler l2capecredconnrsp, l2capleconnectrsp, l2capconfigrsp...

CVE-2026-63975

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix possible crash on l2capecredconnrsp If dcid is received for an already-assigned destination CID the spec requires that both channels to be discarded, but calling l2capchandel may invalidate the tmp cursor...

EUVD-2026-45748

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix possible crash on l2capecredconnrsp If dcid is received for an already-assigned destination CID the spec requires that both channels to be discarded, but calling l2capchandel may invalidate the tmp cursor...

CVE-2026-63971 sctp: fix race between sctp_wait_for_connect and peeloff

In the Linux kernel, the following vulnerability has been resolved: sctp: fix race between sctpwaitforconnect and peeloff sctpwaitforconnect drops and re-acquires the socket lock while waiting for the association to reach ESTABLISHED state. During this window, another thread can peeloff the...

CVE-2026-63971

In the Linux kernel, the following vulnerability has been resolved: sctp: fix race between sctpwaitforconnect and peeloff sctpwaitforconnect drops and re-acquires the socket lock while waiting for the association to reach ESTABLISHED state. During this window, another thread can peeloff the...

EUVD-2026-45742

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in rt6fillnode Sashiko reported this issue 1. Apply the same fix as commit f8d8ce1b515a "ipv6: fix possible infinite loop in fib6infousesdev". Writers holding tb6lock can listdelrcu&rt-fib6sibling...

CVE-2026-63948 Bluetooth: L2CAP: fix chan ref leak in l2cap_chan_timeout() on !conn

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix chan ref leak in l2capchantimeout on !conn setchantimer takes a l2capchan reference via l2capchanhold before scheduling the delayed work. The normal path in l2capchantimeout drops this reference with...

CVE-2026-63946 Bluetooth: ISO: fix UAF in iso_recv_frame

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix UAF in isorecvframe isorecvframe reads conn-sk under isoconnlock but releases the lock before using sk, with no reference held. A concurrent isosockkill can free sk in that window, causing use-after-free on...

CVE-2026-63945 Bluetooth: ISO: serialize iso_sock_clear_timer with socket lock

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: serialize isosockcleartimer with socket lock isosockclose calls isosockcleartimer before acquiring locksocksk. isosockcleartimer reads isopisk-conn twice without the socket lock held: if !isopisk-conn return;...

CVE-2026-63924 ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo()

In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh pointer after ipv6hopjumbo ipv6hopjumbo calls pskbtrimrcsum, which can change skb pointers. Let's recompute nh pointer to make sure any change won't mess things up...

EUVD-2026-45693

In the Linux kernel, the following vulnerability has been resolved: ipv6: validate extension header length before copying to cmsg ip6datagramrecvspecificctl builds IPV6HOPOPTS,DSTOPTS,RTHDR cmsgs and their IPV62292 legacy counterparts by trusting the on-wire hdrlen byte ptr1 when computing the...

EUVD-2026-45691

In the Linux kernel, the following vulnerability has been resolved: l2tp: use refcountincnotzero in l2tpsessiongetbyifname A reader in l2tpsessiongetbyifname can return a pointer to a session whose refcount has reached zero. The getter takes its reference with plain refcountinc, but every other...

CVE-2026-63918

CVE-2026-63918 documents a Linux kernel fix: l2tp_session_get_by_ifname previously used refcount_inc() while other getters used refcount_inc_not_zero(), risking use-after-free if a race during RC/Rcu grace period allowed a zero refcount. The change normalizes the getter to refcount_inc_not_zero()...

EUVD-2026-45690

In the Linux kernel, the following vulnerability has been resolved: ip6: vti: Use ip6tnl.net in vti6changelink. ip netns add ns1 ip netns add ns2 ip -n ns1 link add vti6test type vti6 remote ::1 local ::2 key 7 ip -n ns1 link set vti6test netns ns2 ip -n ns2 link set vti6test type vti6 remote ::3...

CVE-2026-63915 nfc: hci: fix out-of-bounds read in HCP header parsing

In the Linux kernel, the following vulnerability has been resolved: nfc: hci: fix out-of-bounds read in HCP header parsing Both nfchcirecvfromllc and ncihcidatareceivedcb read packet-header from skb-data at function entry without first checking that the buffer holds at least one byte. A malicious...

CVE-2026-63914 xfrm: route MIGRATE notifications to caller's netns

In the Linux kernel, the following vulnerability has been resolved: xfrm: route MIGRATE notifications to caller's netns xfrmsendmigrate in net/xfrm/xfrmuser.c and pfkeysendmigrate in net/key/afkey.c both hardcode &initnet for the multicast that announces a successful XFRMMSGMIGRATE / SADBXMIGRATE...

CVE-2026-63912 xfrm: esp: restore combined single-frag length gate

In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: restore combined single-frag length gate The ESP out-of-place fast path appends the trailer in espoutputhead before espoutputtail allocates the destination page frag. The head-side gate currently checks skb-datalen and...

CVE-2026-63913 netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check An unintended behavior in the TCP conntrack state machine allows a connection to be forced into the CLOSE state using an RST packet with an...

CVE-2026-63912

The CVE concerns the Linux kernel XFRM/ESP path. The vulnerability arises in the ESP out-of-place fast path where an out-of-line trailer is written before dest page frag allocation; the head gate and tail code previously treated skb->data_len and tailen separately, risking an overflow when the...

CVE-2026-63913 netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check An unintended behavior in the TCP conntrack state machine allows a connection to be forced into the CLOSE state using an RST packet with an...