SUSE CVE-2026-53306

In the Linux kernel, the following vulnerability has been resolved: tty: hvciucv: fix off-by-one in number of supported devices MAXHVCIUCVLINES == HVCALLOCTTYADAPTERS == 8. This is the number of entries in: static struct hvciucvprivate hvciucvtableMAXHVCIUCVLINES; Sometimes hvciucvtable is limite...

Linux Distros Unpatched Vulnerability : CVE-2026-53306

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tty: hvciucv: fix off-by-one in number of supported devices MAXHVCIUCVLINES == HVCALLOCTTYADAPTERS == 8. This is the number of entries in: static struct...

DEBIAN-CVE-2026-53306

In the Linux kernel, the following vulnerability has been resolved: tty: hvciucv: fix off-by-one in number of supported devices MAXHVCIUCVLINES == HVCALLOCTTYADAPTERS == 8. This is the number of entries in: static struct hvciucvprivate hvciucvtableMAXHVCIUCVLINES; Sometimes hvciucvtable is limite...

CVE-2026-53306

In the Linux kernel, the following vulnerability has been resolved: tty: hvciucv: fix off-by-one in number of supported devices MAXHVCIUCVLINES == HVCALLOCTTYADAPTERS == 8. This is the number of entries in: static struct hvciucvprivate hvciucvtableMAXHVCIUCVLINES; Sometimes hvciucvtable is limite...

CVE-2026-53306 tty: hvc_iucv: fix off-by-one in number of supported devices

In the Linux kernel, the following vulnerability has been resolved: tty: hvciucv: fix off-by-one in number of supported devices MAXHVCIUCVLINES == HVCALLOCTTYADAPTERS == 8. This is the number of entries in: static struct hvciucvprivate hvciucvtableMAXHVCIUCVLINES; Sometimes hvciucvtable is limite...

EUVD-2026-39841

In the Linux kernel, the following vulnerability has been resolved: tty: hvciucv: fix off-by-one in number of supported devices MAXHVCIUCVLINES == HVCALLOCTTYADAPTERS == 8. This is the number of entries in: static struct hvciucvprivate hvciucvtableMAXHVCIUCVLINES; Sometimes hvciucvtable is limite...

CVE-2026-53306

CVE-2026-53306 affects the Linux kernel tty/hvc_iucv path. The issue is an off-by-one in the number of supported devices: MAX_HVC_IUCV_LINES is 8, and hvc_iucv_devices can be 0–8. When devices == 8, a path that validates against the table size can access hvc_iucv_table[8], potentially triggering ...

CVE-2026-53306

In the Linux kernel, the following vulnerability has been resolved: tty: hvciucv: fix off-by-one in number of supported devices MAXHVCIUCVLINES == HVCALLOCTTYADAPTERS == 8. This is the number of entries in: static struct hvciucvprivate hvciucvtableMAXHVCIUCVLINES; Sometimes hvciucvtable is limite...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: s390/iucv: The MSGPEEK flag causes a memory leak in iucvsockdestruct. Passing the MSGPEEK flag to skbrecvdatagram increments the skb refcount skb-users, while iucvsockrecvmsg does not decrement the skb refcount at exit. This...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: net/iucv: fix use after free in iucvsockclose iucvseverpath is called from process context and from bh context. iucv-path is used as indicator whether somebody else is taking care of severing the path or it is already removed /...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/iucv: Fix size of interrupt data iucvirqdata needs to be 4 bytes larger. These bytes are not used by the iucv module, but written by the z/VM hypervisor in case a CPU is deconfigured. Reported as: BUG dma-kmalloc-64 Not...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-005115)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005115 advisory. In the Linux kernel, the following vulnerability has been resolved: net/iucv: fix use after free in iucvsockclose iucvseverpath is called from process context and fr...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002019)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002019 advisory. The iucvsockrecvmsg function in net/iucv/afiucv.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtai...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002373)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002373 advisory. The iucvsockrecvmsg function in net/iucv/afiucv.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtai...

ROS-20260113-7392

A vulnerability in the iucvsockdestruct function of the net/iucv/afiucv.c component of the Linux operating system kernel is related to improper memory freeing before deleting the last link. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993238)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-993238 advisory. In the Linux kernel, the following vulnerability has been resolved: net/iucv: Fix size of interrupt data iucvirqdata needs to be 4 bytes larger. These bytes are not...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-992683)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992683 advisory. In the Linux kernel, the following vulnerability has been resolved: net/iucv: Fix size of interrupt data iucvirqdata needs to be 4 bytes larger. These bytes are not...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990810)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990810 advisory. In the Linux kernel, the following vulnerability has been resolved: net/iucv: Fix size of interrupt data iucvirqdata needs to be 4 bytes larger. These bytes are not...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990500)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990500 advisory. In the Linux kernel, the following vulnerability has been resolved: net/iucv: Avoid explicit cpumask var allocation on stack For CONFIGCPUMASKOFFSTACK=y kernel,...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989893)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989893 advisory. In the Linux kernel, the following vulnerability has been resolved: net/iucv: Avoid explicit cpumask var allocation on stack For CONFIGCPUMASKOFFSTACK=y kernel,...