Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel, which stems from an unused RCU protection of accesses to sk-sksocket by the skpsockverdictdataready function in the bpf...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013835)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013835 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix an infinite loop error when len is 0 in tcpbpfrecvmsgparser When the buffer...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011100)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011100 advisory. In the Linux kernel, the following vulnerability has been resolved: mptcp: Fix proto fallback detection with BPF The sockmap feature allows bpf syscall from userspac...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011194)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011194 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix repeated calls to sockput when msg has moredata In tcpbpfsendverdict redirectio...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013206)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013206 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix double uncharge the mem of skmsg If tcpbpfsendmsg is running during a tear down...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013232)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013232 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix repeated calls to sockput when msg has moredata In tcpbpfsendverdict redirectio...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013133)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013133 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix the sk-skforwardalloc warning of skstreamkillqueues When running testsockmap...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013356)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013356 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix more uncharged while msg has moredata In tcpbpfsendverdict, if msg has more dat...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-006964)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006964 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix repeated calls to sockput when msg has moredata In tcpbpfsendverdict redirectio...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-011212)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011212 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix memleak in skpsockqueuemsg If tcpbpfsendmsg is running during a tear down...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013236)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013236 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: fix race in sockmapfree sockmapfree calls releasesocksk without owning a reference ...

kernel: Linux kernel: Use-after-free in BPF sockmap can lead to denial of service and privilege escalation

A flaw was found in the Linux kernel's BPF Berkeley Packet Filter sockmap subsystem. A race condition exists where the sksocket is not properly locked or referenced during the skbsendsock function call, allowing for a use-after-free vulnerability. This can be exploited by a local attacker, leadin...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

kernel: Linux kernel: Use-after-free in BPF sockmap can lead to denial of service and privilege escalation

A flaw was found in the Linux kernel's BPF Berkeley Packet Filter sockmap subsystem. A race condition exists where the sksocket is not properly locked or referenced during the skbsendsock function call, allowing for a use-after-free vulnerability. This can be exploited by a local attacker, leadin...

RHEL 9 : kernel (RHSA-2026:7013)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:7013 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Use-after-free i...

RHEL 9 : kernel (RHSA-2026:6310)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:6310 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Use-after-free i...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

kernel: Linux kernel: Use-after-free in BPF sockmap can lead to denial of service and privilege escalation

A flaw was found in the Linux kernel's BPF Berkeley Packet Filter sockmap subsystem. A race condition exists where the sksocket is not properly locked or referenced during the skbsendsock function call, allowing for a use-after-free vulnerability. This can be exploited by a local attacker, leadin...

PT-2026-36433

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the Linux kernel within the sk psock verdict data ready function. The problem occurs in unix stream sendmsg when the peer socket's sk data ready is calle...

kernel: Linux kernel: Use-after-free in BPF sockmap can lead to denial of service and privilege escalation

A flaw was found in the Linux kernel's BPF Berkeley Packet Filter sockmap subsystem. A race condition exists where the sksocket is not properly locked or referenced during the skbsendsock function call, allowing for a use-after-free vulnerability. This can be exploited by a local attacker, leadin...