UBUNTU-CVE-2026-80564

In the Linux kernel, the following vulnerability has been resolved: gve: fix NULL dereference due to missing ptp adjfine Fix NULL dereference due to missing implementation of adjfine, which can be triggered from usermode as follows: sudo ./testptp -d /dev/ptp0 -f 0 551.943697 BUG: kernel NULL...

CVE-2026-80520

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix NULL dereference when killing missing key ovpncryptokillkey assumes both crypto slots are populated and dereferences each slot before checking it. That is not guaranteed: a peer can have only one installed key, and the...

CVE-2026-80524

In the Linux kernel, the following vulnerability has been resolved: optee: ffa: Add NULL check in opteeffalendprotmem Sashiko locally reports a possible null dereference under memory pressure due to the lack of validation of the allocated pointer. Fix that by adding the missing check...

CVE-2026-80564

In the Linux kernel, the following vulnerability has been resolved: gve: fix NULL dereference due to missing ptp adjfine Fix NULL dereference due to missing implementation of adjfine, which can be triggered from usermode as follows: sudo ./testptp -d /dev/ptp0 -f 0 551.943697 BUG: kernel NULL...

AZL-97746 CVE-2026-74740 affecting package kernel for versions less than 6.6.157.1-1

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

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

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-2026-80564 gve: fix NULL dereference due to missing ptp adjfine

In the Linux kernel, the following vulnerability has been resolved: gve: fix NULL dereference due to missing ptp adjfine Fix NULL dereference due to missing implementation of adjfine, which can be triggered from usermode as follows: sudo ./testptp -d /dev/ptp0 -f 0 551.943697 BUG: kernel NULL...

CVE-2026-80564

This Linux kernel vulnerability affects the gve (Google Virtual Ethernet) driver. The root cause is a missing implementation of the adjfine PTP operation , which leads to a NULL pointer dereference in ptp_clock_adjtime. The bug can be triggered from usermode via sudo ./testptp -d /dev/ptp0 -f 0, ...

EUVD-2026-66479

In the Linux kernel, the following vulnerability has been resolved: gve: fix NULL dereference due to missing ptp adjfine Fix NULL dereference due to missing implementation of adjfine, which can be triggered from usermode as follows: sudo ./testptp -d /dev/ptp0 -f 0 551.943697 BUG: kernel NULL...

CVE-2026-80524 optee: ffa: Add NULL check in optee_ffa_lend_protmem

In the Linux kernel, the following vulnerability has been resolved: optee: ffa: Add NULL check in opteeffalendprotmem Sashiko locally reports a possible null dereference under memory pressure due to the lack of validation of the allocated pointer. Fix that by adding the missing check...

CVE-2026-80524 optee: ffa: Add NULL check in optee_ffa_lend_protmem

In the Linux kernel, the following vulnerability has been resolved: optee: ffa: Add NULL check in opteeffalendprotmem Sashiko locally reports a possible null dereference under memory pressure due to the lack of validation of the allocated pointer. Fix that by adding the missing check...

CVE-2026-80524

This vulnerability affects the Linux kernel in the OP-TEE FFA driver, specifically the optee_ffa_lend_protmem function. A NULL pointer dereference can occur under memory pressure because the allocated pointer is not validated before use. The fix adds the missing NULL check before dereferencing. N...

CVE-2026-80520

A NULL pointer dereference in the Linux kernel's ovpn (OpenVPN) module can lead to a denial of service (CVSS 3.1: 7.5, HIGH). The function ovpn_crypto_kill_key assumes both crypto slots are populated and dereferences each before checking for NULL. Since a peer can have only one installed key, the...

CVE-2026-80520 ovpn: fix NULL dereference when killing missing key

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix NULL dereference when killing missing key ovpncryptokillkey assumes both crypto slots are populated and dereferences each slot before checking it. That is not guaranteed: a peer can have only one installed key, and the...

CVE-2026-80520 ovpn: fix NULL dereference when killing missing key

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix NULL dereference when killing missing key ovpncryptokillkey assumes both crypto slots are populated and dereferences each slot before checking it. That is not guaranteed: a peer can have only one installed key, and the...

CVE-2026-74740 net/sched: act_api: fix TOCTOU NULL deref on a->goto_chain

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...

EUVD-2026-66570

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...

SUSE CVE-2026-74263

In the Linux kernel, the following vulnerability has been resolved: net: wwan: t7xx: check skbclone in control TX t7xxportctrltx clones each skb fragment before passing it to the port transmit path. The clone is used immediately to set cloned-len, so an skbclone failure results in a NULL pointer...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098710)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098710 advisory. In the Linux kernel, the following vulnerability has been resolved: NFSD: fix race between nfsd registration and exportsproc As of now nfsd calls...