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...

PT-2026-72948

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the fou create function. The function publishes struct fou via sk user data before adding the new FOU port to the per-netns list. If the fou add to port...

CVE-2026-23450 net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock()

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL dereference and UAF in smctcpsynrecvsock Syzkaller reported a panic in smctcpsynrecvsock 1. smctcpsynrecvsock is called in the TCP receive path softirq via icskafops-synrecvsock on the clcsock TCP listening...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-004875)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004875 advisory. In the Linux kernel, the following vulnerability has been resolved: kcm: fix strpinit order and cleanup strpinit is called just a few lines above this csk-skuserdata...

DEBIAN-CVE-2022-50405

In the Linux kernel, the following vulnerability has been resolved: net/tunnel: wait until all skuserdata reader finish before releasing the sock There is a race condition in vxlan that when deleting a vxlan device during receiving packets, there is a possibility that the sock is released after...

CVE-2022-50405 net/tunnel: wait until all sk_user_data reader finish before releasing the sock

In the Linux kernel, the following vulnerability has been resolved: net/tunnel: wait until all skuserdata reader finish before releasing the sock There is a race condition in vxlan that when deleting a vxlan device during receiving packets, there is a possibility that the sock is released after...

SUSE CVE-2022-49957

In the Linux kernel, the following vulnerability has been resolved: kcm: fix strpinit order and cleanup strpinit is called just a few lines above this csk-skuserdata check, it also initializes strp-work etc., therefore, it is unnecessary to call strpdone to cancel the freshly initialized work. An...

UBUNTU-CVE-2022-49957

In the Linux kernel, the following vulnerability has been resolved: kcm: fix strpinit order and cleanup strpinit is called just a few lines above this csk-skuserdata check, it also initializes strp-work etc., therefore, it is unnecessary to call strpdone to cancel the freshly initialized work. An...

PT-2023-9296

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.3.0 Description The vulnerability is related to a use-after-free issue in the svc tcp listen data ready function. This occurs when the listener svc sock is freed, and before invoking svc tcp accept for the...

kernel: l2tp: missing lock when clearing sk_user_data can lead to NULL pointer dereference

A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol L2TP. A missing lock when clearing skuserdata can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service...

kernel: l2tp: missing lock when clearing sk_user_data can lead to NULL pointer dereference

A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol L2TP. A missing lock when clearing skuserdata can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service...