Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: macsec: Fixed the UAF bug related to realdev. A new macsec device was created, but there was no reference to realdev. This does not ensure that realdev is freed after the macsec device is removed. This will trigger the UAF bug...

PT-2026-72511

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition occurs between device teardown in inetdev destroy and incoming IGMP query processing in igmp rcv, resulting in a Use-After-Free UAF within the IGMP timer callback. Durin...

CVE-2026-53251 Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix not releasing hdev reference on isoconnbigsync hcigetroute returns a reference-counted hcidev pointer via hcidevhold. The function exits normally or with an error without ever releasing it...

CVE-2026-43099 ipv4: icmp: fix null-ptr-deref in icmp_build_probe()

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: fix null-ptr-deref in icmpbuildprobe ipv6stub-ipv6devfind may return ERRPTR-EAFNOSUPPORT when the IPv6 stack is not active CONFIGIPV6=m and not loaded, and passing this error pointer to devhold will cause a kernel cra...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-992166)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992166 advisory. In the Linux kernel, the following vulnerability has been resolved: ipv6/addrconf: fix a potential refcount underflow for idev Now in addrconfmodrstimer, reference...

SUSE CVE-2022-49390

In the Linux kernel, the following vulnerability has been resolved: macsec: fix UAF bug for realdev Create a new macsec device but not get reference to realdev. That can not ensure that realdev is freed after macsec. That will trigger the UAF bug for realdev as following:...

UBUNTU-CVE-2022-49390

In the Linux kernel, the following vulnerability has been resolved: macsec: fix UAF bug for realdev Create a new macsec device but not get reference to realdev. That can not ensure that realdev is freed after macsec. That will trigger the UAF bug for realdev as following:...

DEBIAN-CVE-2024-49982

In the Linux kernel, the following vulnerability has been resolved: aoe: fix the potential use-after-free problem in more places For fixing CVE-2023-6270, f98364e92662 "aoe: fix the potential use-after-free problem in aoecmdcfgpkts" makes tx calling devput instead of doing in aoecmdcfgpkts. It...

DEBIAN-CVE-2021-47555

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...

UBUNTU-CVE-2021-47555

In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix underflow for the realdev refcnt Inject error before devholdrealdev in registervlandev, and execute the following testcase: ip link add dev dummy1 type dummy ip link add name dummy1.100 link dummy1 type vlan id 100...