Astra Linux – vulnerability in linux-5.10, linux-5.15, linux

In the Linux kernel, the following vulnerability has been resolved: nbd: call genlunregisterfamily first in nbdcleanup Otherwise, there may be a race condition between module removal and the handling of netlink commands, which can lead to the oops as shown below: BUG: kernel NULL pointer...

Astra Linux – vulnerability in nbd

In nbd-server in nbd prior to version 3.24, there is an integer overflow that leads to a heap-based buffer overflow. A value of 0xffffffff in the name length field causes a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue affects the NBDOPTINF...

Astra Linux – vulnerability in linux-5.10, linux-5.15, linux

In the Linux kernel, the following vulnerability has been resolved: nbd: fix io hung while disconnecting device In our tests, “qemu-nbd” triggers an io hung: INFO: task qemu-nbd:11445 blocked for more than 368 seconds. Not tainted 5.18.0-rc3-next-20220422-00003-g2176915513ca 884 “echo 0...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nbd: The issue of task hanging when the signal interrupt nbdstartdeviceioctl occurs has been fixed. The following program is a simplified version of the reproducer function: c int mainvoid int sv2, fd; if socketpairAFUNIX,...

Astra Linux – vulnerability in nbd

In nbd-server in nbd prior to version 3.24, there is a stack-based buffer overflow. An attacker can trigger a buffer overflow in the parsing of the name field by sending a crafted NBDOPTINFO or NBDOPTGO message containing a large value as the length of the name...

[SECURITY] Fedora 45 Update: libnbd-1.25.7-3.fc45

NBD =E2=80=94 Network Block Device =E2=80=94 is a protocol for accessing Bloc k Devices hard disks and disk-like things over a Network. This is the NBD client library in userspace, a simple library for writing NBD clients. The key features are: Synchronous and asynchronous APIs, both for ease of...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: nbd: Fixed NULL pointer in flushworkqueue Open /dev/nbdX first; the configrefs will be 1, and the pointers in nbddevice remain null. Disconnect /dev/nbdX, then reference a NULL recvworkq. The protection provided by configrefs ...

Astra Linux – Vulnerability in Linux

In the Linux kernel, from drivers/block/nbd.c up to version 5.10.12, there is a use-after-free in the nbdaddsocket function. This issue could be triggered by local attackers who have access to the nbd device. The attack occurs during I/O requests at a certain point in device setup, specifically...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix for the race between nbdallocconfig and module removal When the nbd module is being removed, nbdallocconfig may be called concurrently by nbdgenlconnect. Although trymoduleget will return false, nbdallocconfig does not...

[SECURITY] Fedora 43 Update: libnbd-1.24.3-1.fc43

NBD =E2=80=94 Network Block Device =E2=80=94 is a protocol for accessing Bloc k Devices hard disks and disk-like things over a Network. This is the NBD client library in userspace, a simple library for writing NBD clients. The key features are: Synchronous and asynchronous APIs, both for ease of...

ROS-20260707-73-0055

The vulnerability of the tools for working with Network Block Device Libnbd is related to the implementation or modification of arguments. Exploiting this vulnerability can allow an attacker to gain access to confidential data, compromise its integrity, and cause service failures...

Astra Linux – vulnerability in linux-6.1, linux-6.12

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config put in recvwork There is one uaf issue in recvwork when running NBDCLEARSOCK and NBDCMDRECONFIGURE: nbdgenlconnect // confref=2 connect and recvwork A nbdopen // confref=3 recvwork A done // confref=2 NBDCLEARSO...

Astra Linux – vulnerability in linux-6.1, linux-6.12

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbdgenlconnect There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs=2 set NBDRTHASCONFIGREF...

Oracle Linux 8 : virt:kvm_utils3 (ELSA-2026-50337)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50337 advisory. - Limit recursion in ri-records CVE-2021-3622 resolves: rhbz1976194 - Bounds check for block exceeding page length CVE-2021-3504 resolves: rhbz1950501...

kernel: nbd: defer config unlock in nbd_genl_connect

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbdgenlconnect There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs=2 set NBDRTHASCONFIGREF...

kernel: nbd: defer config unlock in nbd_genl_connect

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbdgenlconnect There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs=2 set NBDRTHASCONFIGREF...

kernel: nbd: defer config unlock in nbd_genl_connect

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbdgenlconnect There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs=2 set NBDRTHASCONFIGREF...

kernel: nbd: defer config unlock in nbd_genl_connect

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbdgenlconnect There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs=2 set NBDRTHASCONFIGREF...

kernel: nbd: defer config unlock in nbd_genl_connect

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbdgenlconnect There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs=2 set NBDRTHASCONFIGREF...

kernel: nbd: defer config unlock in nbd_genl_connect

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbdgenlconnect There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs=2 set NBDRTHASCONFIGREF...