Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Added a check for mgmtallocskb in mgmtdeviceconnected. Added a check on the return value of mgmtallocskb in mgmtdeviceconnected to prevent null pointer dereferencing...

SUSE CVE-2025-68787

In the Linux kernel, the following vulnerability has been resolved: netrom: Fix memory leak in nrsendmsg syzbot reported a memory leak 1. When function sockallocsendskb return NULL in nroutput, the original skb is not freed, which was allocated in nrsendmsg. Fix this by freeing it before return. ...

UBUNTU-CVE-2025-68787

In the Linux kernel, the following vulnerability has been resolved: netrom: Fix memory leak in nrsendmsg syzbot reported a memory leak 1. When function sockallocsendskb return NULL in nroutput, the original skb is not freed, which was allocated in nrsendmsg. Fix this by freeing it before return. ...

UBUNTU-CVE-2025-68169

In the Linux kernel, the following vulnerability has been resolved: netpoll: Fix deadlock in memory allocation under spinlock Fix a AA deadlock in refillskbs where memory allocation while holding skbpool-lock can trigger a recursive lock acquisition attempt. The deadlock scenario occurs when the...

Siemens SIMATIC Devices Use After Free (CVE-2025-21764)

ndisc: use RCU protection in ndiscallocskb This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description scriptid503652; scriptversion"1.3";...

kernel: ipv6: mcast: extend RCU protection in igmp6_send()

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. Note that we no longer can use...

Linux Distros Unpatched Vulnerability : CVE-2025-39847

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ppp: fix memory leak in padcompressskb If allocskb fails in padcompressskb, it returns NULL without releasing the old skb. The caller does: skb =...

kernel: ipv6: mcast: extend RCU protection in igmp6_send()

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. Note that we no longer can use...

kernel: ipv6: mcast: extend RCU protection in igmp6_send()

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. Note that we no longer can use...

UBUNTU-CVE-2025-21937

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Add check for mgmtallocskb in mgmtremotename Add check for the return value of mgmtallocskb in mgmtremotename to prevent null pointer dereference...

PT-2025-14600

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A issue in the Linux kernel's Bluetooth functionality has been identified. The chan alloc skb cb function is expected to return error pointers in case of an error, but it was returning...

DEBIAN-CVE-2025-21759

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. Note that we no longer can use...

UBUNTU-CVE-2025-21764

In the Linux kernel, the following vulnerability has been resolved: ndisc: use RCU protection in ndiscallocskb ndiscallocskb can be called without RTNL or RCU being held. Add RCU protection to avoid possible UAF...

UBUNTU-CVE-2025-21758

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: add RCU protection to mldnewpack mldnewpack can be called without RTNL or RCU being held. Note that we no longer can use sockallocsendskb because ipv6.igmpsk uses GFPKERNEL allocations which can sleep. Instead use...

PT-2025-8876

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved. The issue is related to the ndisc alloc skb function, which can be called without RTNL or RCU being held, potentially leading to a...