kernel: net: ieee802154: do not leave a dangling sk pointer in ieee802154_create()

A user-after-free vulnerability was found in the linux kernel. sockinitdata attaches the allocated sk object to the provided sock object. If ieee802154create fails later, the allocated sk object is freed, but the dangling pointer remains in the provided sock object, leading to a crash and loss of...

kernel: net: ieee802154: do not leave a dangling sk pointer in ieee802154_create()

A user-after-free vulnerability was found in the linux kernel. sockinitdata attaches the allocated sk object to the provided sock object. If ieee802154create fails later, the allocated sk object is freed, but the dangling pointer remains in the provided sock object, leading to a crash and loss of...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100738)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100738 advisory. In the Linux kernel, the following vulnerability has been resolved: sctp: diag: reject stale associations in dumpone path The SCTP exact sockdiag lookup can hold a...

CVE-2026-74536

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix leaking sk after socket release isosockkill tests !sockflagsk, SOCKZAPPED || sk-sksocket || sockflagsk, SOCKDEAD for early return, but this is always true since sockorphansk sets SOCKDEAD, so the sk reference...

UBUNTU-CVE-2026-74536

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix leaking sk after socket release isosockkill tests !sockflagsk, SOCKZAPPED || sk-sksocket || sockflagsk, SOCKDEAD for early return, but this is always true since sockorphansk sets SOCKDEAD, so the sk reference...

CVE-2026-74539 Bluetooth: ISO: lock sk in iso_sock_getname

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: lock sk in isosockgetname Accessing isopisk-conn requires locksock, which is not held here. Fix by adding the lock/release...

CVE-2026-74536 Bluetooth: ISO: fix leaking sk after socket release

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix leaking sk after socket release isosockkill tests !sockflagsk, SOCKZAPPED || sk-sksocket || sockflagsk, SOCKDEAD for early return, but this is always true since sockorphansk sets SOCKDEAD, so the sk reference...

CVE-2026-72330 net/tls: Consume empty data records in tls_sw_read_sock()

In the Linux kernel, the following vulnerability has been resolved: net/tls: Consume empty data records in tlsswreadsock A peer may send a zero-length TLS applicationdata record; TLS 1.3 explicitly permits these as a traffic-analysis countermeasure RFC 8446, Section 5.1. After decryption such a...

PT-2026-72208

In the Linux kernel, the following vulnerability has been resolved: macsec: don't read an unset MAC header in macsec encrypt macsec encrypt reads the Ethernet header via eth hdrskb skb-head + skb-mac header to memmove the 12 source/destination MAC bytes forward and make room for the SecTAG. On th...

PT-2026-72650

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix race in unix socket mediation when peer path is used The holding a reference to the peer sk is not enough to ensure access to the peer sk path. Accessing the path outside of the state lock allows for a race with uni...

PT-2026-72991

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: lock sk in iso sock getname Accessing iso pisk-conn requires lock sock, which is not held here. Fix by adding the lock/release...

CVE-2026-68399

CVE-2026-68399: Linux kernel BPF sock_clone UAF fixed by resetting newsk->sk_bpf_storage to NULL after sock_copy() (in sk_clone) and removing redundant init in bpf_sk_storage_clone. Exploit could lead to use-after-free of parent socket’s BPF storage with potential DoS or arbitrary code executi...

CVE-2026-68397

The CVE-2026-68397 issue affects the Linux kernel net/iucv code: afiucv_hs_rcv() may pass a destination socket to handlers without holding a reference, allowing a concurrent close to free the socket before the handler dereferences it (e.g., sk->sk_data_ready()) because AF_IUCV sockets aren’t R...

CVE-2026-64575

In the Linux kernel, the following vulnerability has been resolved: bpf: tcp: fix double sock release on batch realloc bpfitertcpbatch releases the current batch via bpfitertcpputbatch, which drops the socket refs and rewrites each slot with the socket cookie, then grows the batch. cursk/endsk ar...

SUSE CVE-2026-64541

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix UAF in smccdcrxhandler by pinning the socket smccdcrxhandler looks up the connection by token under the link group's connslock, drops the lock, and then dereferences conn and the smcsock derived from it, ending in...

Linux Distros Unpatched Vulnerability : CVE-2026-64548

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf, sockmap: reject overflowing copy + len in bpfmsgpushdata When the scatterlist ring is full or nearly full, bpfmsgpushdata enters a copy fallback path and...

CVE-2026-64518

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix out-of-bounds access for twsk in tcpaoestablishedkey. lockdepsockisheld was added in tcpaoestablishedkey by the cited commit. It can be called from tcpv46timewaitack with twsk. Since it does not have sk-sklock, the lockd...

CVE-2026-64518 tcp: Fix out-of-bounds access for twsk in tcp_ao_established_key().

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix out-of-bounds access for twsk in tcpaoestablishedkey. lockdepsockisheld was added in tcpaoestablishedkey by the cited commit. It can be called from tcpv46timewaitack with twsk. Since it does not have sk-sklock, the lockd...

Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-2001)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2001 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkqueue: do shared-unconfirmed check before segmentation CVE-2026-45859 In the Linux kernel, the following...

The vulnerability of the sk_mc_loop() function in the net/core/sock.c module exposes the support for networking functions in the Linux kernel, allowing attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the skmcloop function in the net/core/sock.c module related to Linux kernel network functions is associated with improper disabling or release of resources. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and accessibility of...