Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net/smc: Fixed a socket reference count leak in smcswitchconns. The smcswitchconns function takes a reference to the SMC socket before releasing the lgr-connslock; as a result, the connection remains active while the CDC slot ...

SUSE CVE-2026-90253

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: free the mesh send cancel command when it is cancelled meshsendcancel queues the pending command with a NULL destroy callback, so it is only freed if sendcancel runs. A cancelled entry is leaked, as...

DEBIAN-CVE-2026-90252

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: free the HCI command when it is cancelled mgmthcicmdsync queues the pending command with a NULL destroy callback, so it is only freed if sendhcicmdsync runs. A cancelled entry is leaked, as hcicmdsynccancelentry...

CVE-2026-90252

CVE-2026-90252 is a memory and socket-reference leak in the Linux kernel's Bluetooth MGMT subsystem. The root cause is that mgmt_hci_cmd_sync() queues a pending HCI command with a NULL destroy callback , meaning a cancelled entry is never freed. When a controller is unregistered, hci_cmd_sync_cle...

CVE-2026-90252 Bluetooth: MGMT: free the HCI command when it is cancelled

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: free the HCI command when it is cancelled mgmthcicmdsync queues the pending command with a NULL destroy callback, so it is only freed if sendhcicmdsync runs. A cancelled entry is leaked, as hcicmdsynccancelentry...

CVE-2026-90252 Bluetooth: MGMT: free the HCI command when it is cancelled

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: free the HCI command when it is cancelled mgmthcicmdsync queues the pending command with a NULL destroy callback, so it is only freed if sendhcicmdsync runs. A cancelled entry is leaked, as hcicmdsynccancelentry...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: gro: fixed ownership transfer If packets are processed with a fraglist, they may be segmented later on and continue their journey within the stack. In skbSegmentlist, these skbs can be reused as is. This is a problem because thei...

Linux Distros Unpatched Vulnerability : CVE-2026-89564

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ip: orphan prefetched skbs before multicast forwarding IPv4 and IPv6 input preserve an skb-sk association installed by bpfskassign so that local delivery can us...

DEBIAN-CVE-2026-80983

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket refcount leak in smcswitchconns smcswitchconns takes a reference on the SMC socket before dropping lgr-connslock, so the connection stays alive while the CDC slot is fetched: sockhold&smc-sk;...

EUVD-2026-76475

In the Linux kernel, the following vulnerability has been resolved: ip: orphan prefetched skbs before multicast forwarding IPv4 and IPv6 input preserve an skb-sk association installed by bpfskassign so that local delivery can use the selected socket under RCU. Both address families can also...

CVE-2026-89564

CVE-2026-89564 is a use-after-free in the Linux kernel 's IP multicast forwarding path. When a socket prefetched by BPF (bpf_sk_assign) or UDP early demux is destroyed before the skb is freed, a later call to sock_pfree() dereferences the stale skb->sk pointer. Both IPv4 and IPv6 are affected:...

CVE-2026-80983

CVE-2026-80983 is a socket reference count leak in the Linux kernel's SMC (Stream Mode Communication) networking module, specifically in the smc_switch_conns() function. The function calls sock_hold() before releasing lgr->conns_lock, but when smc_cdc_get_free_slot() fails (e.g., the target li...

SUSE CVE-2026-74628

In the Linux kernel, the following vulnerability has been resolved: net/x25: fix use-after-free of the socket by its timers The x25 timers are armed with modtimer and cancelled with timerdelete, so a pending timer holds no reference on the socket and a cancel does not wait for a callback already...

CVE-2026-74589

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skredir use-after-free in send verdict skpsockmsgverdict takes a socket reference for psock-skredir. tcpbpfsendverdict copies that pointer while holding the source socket lock, but does not take a reference for...

AZL-97212 CVE-2026-74589 affecting package kernel for versions less than 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skredir use-after-free in send verdict skpsockmsgverdict takes a socket reference for psock-skredir. tcpbpfsendverdict copies that pointer while holding the source socket lock, but does not take a reference for...

CVE-2026-74692

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix TOCTOU race between smclistenout and listener close smclistenout reads lsmc-sk.skstate without the listener lock, then acquires locksocknested only after the check passes. This opens a window where smccloseactive can...

UBUNTU-CVE-2026-74537

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: hold sk properly in isoconnready sk deref in isoconnready must be done either under conn-lock, or holding a refcount, to avoid concurrent close. conn-sk is currently accessed without either: Task 1 Task 2...

EUVD-2026-59686

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket use-after-free during link group termination smclgrterminate drops connslock after finding a connection in lgr-connsall, but before taking a reference on its socket. The connection is embedded in the socket, a...

CVE-2026-72123 can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF

In the Linux kernel, the following vulnerability has been resolved: can: bcm: defer rxop deallocation to workqueue to fix thrtimer UAF Commit f1b4e32aca08 "can: bcm: use callrcu instead of costly synchronizercu" replaced synchronizercu in bcmdeleterxop with callrcu and introduced the RXNOAUTOTIME...

CVE-2026-68397

A flaw was found in the Linux kernel's net/iucv module. The afiucvhsrcv function fails to properly manage socket references. This allows a local attacker to trigger a use-after-free vulnerability by concurrently closing a socket while it is being processed. Successful exploitation can lead to a...