Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: inet: inetdefrag: prevent sk release while still in use The functions iplocalout and others can pass skb-sk as a function argument. If the skb is a fragment and reassembly occurs before such a function call returns, the sk must n...

DEBIAN-CVE-2026-31629

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: add missing return after LLCPCLOSED checks In nfcllcprecvhdlc and nfcllcprecvdisc, when the socket state is LLCPCLOSED, the code correctly calls releasesock and nfcllcpsockput but fails to return. Execution falls throu...

PT-2026-34981

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the NFC LLCP component. In the functions nfc llcp recv hdlc and nfc llcp recv disc, when the socket state is LLCP CLOSED, the code calls release sock and...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011111)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011111 advisory. In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: iscsitcp: Fix null-ptr-deref while calling getpeername Fix a NULL pointer crash that...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007263)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007263 advisory. In the Linux kernel, the following vulnerability has been resolved: inet: inetdefrag: prevent sk release while still in use iplocalout and other functions can pass...

CVE-2026-31408

A flaw was found in the Linux kernel's Bluetooth SCO Synchronous Connection-Oriented protocol implementation. The scorecvframe function fails to properly hold a reference to a socket after releasing a lock. This oversight allows a concurrent operation to free the socket while it is still being...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005637)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005637 advisory. In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: iscsitcp: Fix null-ptr-deref while calling getpeername Fix a NULL pointer crash that...

CVE-2026-23120

Technical details for CVE-2026-23120 are not provided in the connected documents. The Initial Description summarizes the race but does not specify affected products or fixes. Monitor vendor advisories for concrete remediation guidance.

EUVD-2026-5916

In the Linux kernel, the following vulnerability has been resolved: l2tp: avoid one data-race in l2tptunneldelwork We should read sk-sksocket only when dealing with kernel sockets. syzbot reported the following data-race: BUG: KCSAN: data-race in l2tptunneldelwork / skcommonrelease write to...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-004835)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004835 advisory. 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...

CVE-2023-53781

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel socket in smccreate, the kernel...

CVE-2023-53781 smc: Fix use-after-free in tcp_write_timer_handler().

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel socket in smccreate, the kernel...

OESA-2025-2553 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: 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 receivi...

UBUNTU-CVE-2022-50555

In the Linux kernel, the following vulnerability has been resolved: tipc: fix a null-ptr-deref in tipctopsrvaccept syzbot found a crash in tipctopsrvaccept: KASAN: null-ptr-deref in range 0x0000000000000008-0x000000000000000f Workqueue: tipcrcv tipctopsrvaccept RIP: 0010:kernelaccept+0x22d/0x350...

EUVD-2025-32809

In the Linux kernel, the following vulnerability has been resolved: tipc: fix a null-ptr-deref in tipctopsrvaccept syzbot found a crash in tipctopsrvaccept: KASAN: null-ptr-deref in range 0x0000000000000008-0x000000000000000f Workqueue: tipcrcv tipctopsrvaccept RIP: 0010:kernelaccept+0x22d/0x350...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986897)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986897 advisory. In the Linux kernel, the following vulnerability has been resolved: net/9p: Fix a potential socket leak in p9socketopen Both p9fdcreatetcp and p9fdcreateunix will ca...

PT-2025-41060

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the tipc topsrv accept function that can lead to a null pointer dereference. This issue was discovered by syzbot during testing. The root cause is tha...

SUSE CVE-2022-50459

In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: iscsitcp: Fix null-ptr-deref while calling getpeername Fix a NULL pointer crash that occurs when we are freeing the socket at the same time we access it via sysfs. The problem is that: 1. iscsiswtcpconngetparam and...

CVE-2022-50459 scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername()

In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: iscsitcp: Fix null-ptr-deref while calling getpeername Fix a NULL pointer crash that occurs when we are freeing the socket at the same time we access it via sysfs. The problem is that: 1. iscsiswtcpconngetparam and...

Linux kernel 安全漏洞

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 that stems from a failure to properly handle socket release and access contention conditions, which could result in a null...