Linux Distros Unpatched Vulnerability : CVE-2026-89544

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - SUNRPC: fix gssxdecoptionarray error path bugs Four coupled defects in the gssx XDR option-array decoder make the error paths unsafe: a NULL deref in the caller...

CVE-2026-89477

In the Linux kernel, the following vulnerability has been resolved: sctp: fix NULL deref on untransmitted RECONF completion sctpprocessstrresetoutreq, sctpprocessstrresetaddstrmout and sctpprocessstrresetresp complete a pending stream reconfiguration request by stopping the reconf timer on the...

CVE-2026-89709 lockd, nfsd: RCU-protect nlmsvc_ops dispatch

In the Linux kernel, the following vulnerability has been resolved: lockd, nfsd: RCU-protect nlmsvcops dispatch nlmsvcops is published by nfsdlockdinit and cleared by nfsdlockdshutdown with plain stores, while lockd dereferences it unguarded from dispatch sites in fs/lockd/svcsubs.c. The pointer...

CVE-2026-89477

CVE-2026-89477 is a NULL pointer dereference in the Linux kernel's SCTP stream reconfiguration code. When a reconfiguration request is queued in asoc->strreset_chunk but not yet transmitted, chunk->transport remains NULL; three completion functions (sctp_process_strreset_outreq, sctp_proces...

RHEL 9 : redhat-ds:12 (RHSA-2026:64780)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:64780 advisory. Red Hat Directory Server is an LDAPv3-compliant directory server. The suite of packages includes the Lightweight Directory Access Protocol...

RHEL 9 : pipewire (RHSA-2026:61240)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:61240 advisory. PipeWire is a multimedia server for Linux and other Unix like operating systems. Security Fixes: pipewire: RAOP RTSP NULL Deref...

Linux Distros Unpatched Vulnerability : CVE-2026-80646

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ipv6: guard against possible NULL deref in in6devstatsget devgetbyindexrcu could return NULL if the original physical device is unregistered. Found by Sashiko...

UBUNTU-CVE-2026-80636

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: revert ct extension genid infrastructure This infrastructure is not used anymore after moving ct timeout and helper to use datapath refcount to track object use. Revert commit c56716c69ce1 "netfilter:...

CVE-2026-80646

In the Linux kernel, the following vulnerability has been resolved: ipv6: guard against possible NULL deref in in6devstatsget devgetbyindexrcu could return NULL if the original physical device is unregistered. Found by Sashiko...

CVE-2026-74740

In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: fix TOCTOU NULL deref on a-gotochain tcfactionexec handles TCACTGOTOCHAIN by first checking rcuaccesspointera-gotochain and then calling tcfactiongotochainexec, which does a second, independent...

UBUNTU-CVE-2026-74740

In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: fix TOCTOU NULL deref on a-gotochain tcfactionexec handles TCACTGOTOCHAIN by first checking rcuaccesspointera-gotochain and then calling tcfactiongotochainexec, which does a second, independent...

CVE-2026-74740

CVE-2026-74740 is a TOCTOU (time-of-check-time-of-use) NULL pointer dereference in the Linux kernel's net/sched: act_api subsystem. When handling TC_ACT_GOTO_CHAIN, tcf_action_exec() performs an initial rcu_access_pointer(a->goto_chain) check, then calls tcf_action_goto_chain_exec() which perf...

UBUNTU-CVE-2026-74366

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix NULL deref in changestalinks for unready link ieee80211setactivelinks calls ieee80211linkusechannel for each newly-added link and WARNONONCEs if it fails. The call uses assignonfailure=true, which allows mac8021...

CVE-2026-74406

In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix potential null-ptr-deref in vxlangropreparereceive. udptunnelsockrelease could set sk-skuserdata to NULL while vxlangropreparereceive is running. Let's check if rcudereferenceskuserdata is NULL after skbgroremcsuminit...

EUVD-2026-59513

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix NULL deref in changestalinks for unready link ieee80211setactivelinks calls ieee80211linkusechannel for each newly-added link and WARNONONCEs if it fails. The call uses assignonfailure=true, which allows mac8021...

CVE-2026-74311

CVE-2026-74311 affects the Linux kernel virtio rtc path. The bug occurs when viortc_restore() calls viortc_init_vqs() without removing old virtqueues, enabling vp_del_vqs() to reference a NULL info pointer in vp_del_vq() and crash the guest kernel during restore. The fix deletes stale virtqueues ...

CVE-2026-12233

CVE-2026-12233 affects the PSA Protected Storage TLS credential backend. The credential_store mutex was declared as a zero-initialized static k_mutex and never initialized, leaving its wait queue NULL. Under contention, z_pend_curr() appends to this uninitialized wait queue and dereferences a NUL...

UBUNTU-CVE-2026-68242

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gt: Fix NULL deref on schedengine alloc failure Avoid using intelcontextput before intelcontextinit in execlistscreatevirtual as the krefput inside would lead to NULL deref on the IOCTL path when schedengine allocation...

CVE-2026-64583

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: udc: bdc: free IRQ and drain funcwakenotify before teardown The Broadcom BDC UDC driver registers its IRQ handler with devmrequestirq in bdcudcinit, so the IRQ is released by devm only after bdcremove returns. devm...

CVE-2026-64331

In the Linux kernel, the following vulnerability has been resolved: usbip: vudc: fix NULL deref in vepdequeue vepallocrequest wasn't initializing vrequest-udc, so cancellations on the FunctionFS AIO path were arriving in vepdequeue without a valid UDC reference. Since vrequest-udc is never actual...