CVE-2026-52957 libceph: Fix potential null-ptr-deref in decode_choose_args()

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential null-ptr-deref in decodechooseargs A message of type CEPHMSGOSDMAP contains an OSD map that itself contains a CRUSH map. When decoding this CRUSH map in crushdecode, an array of maxbuckets CRUSH buckets is...

CVE-2026-52941

A flaw was found in the Linux kernel's net/smc module. An unprivileged local user could trigger a null pointer dereference by performing sendmsg or recvmsg operations on an SMC-D Shared Memory Communications - Direct socket while the smcmsgevent tracepoint is enabled. This can lead to a general...

CVE-2026-52938

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF storage. A race condition can occur where a storage element is accessed after its associated map has been deallocated, leading to a null pointer dereference. This can cause a kernel crash, resulting in a Denial of Service DoS for t...

CVE-2026-52922

A flaw was found in the Linux kernel's batman-adv Better Approach To Mobile Ad-hoc Networking module. This vulnerability occurs because the batadvdatforwarddata function fails to validate the success of a memory allocation operation. An attacker could exploit this by triggering a scenario where t...

CVE-2026-52939

A flaw was found in the Linux kernel's Reliable Datagram Sockets RDS component. An unprivileged local user can trigger a kernel panic by sending a specially crafted atomic control message cmsg over an active RDS/InfiniBand IB connection. This issue is caused by improper handling of masked atomic...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: scsi: qla2xxx: Validate sp before freeing associated memory System crash with the following signatures: 154563.214890 nvme nvme2: NVME-FC1: Controller connect complete 154564.169363 qla2xxx 0000:b0:00.1-3002:2: nvme: Sched: Se...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ceph: fixed NULL pointer dereference in cephmdsauthmatch The CephFS kernel client has a regression starting from 6.18-rc1. We have a issue with cephmdsauthmatch if fsname is NULL: c const char fsname =...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: net/mlx5e: Fixed the crash that occurred during profile change rollback failure. The mlx5enetdevchangeprofile function may fail to attach a new profile and may fail to roll back to the old profile. In such cases, we might end ...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/siw: Fixed a potential NULL pointer dereference during header processing. If siwgethdr returns -EINVAL before setrxfpducontext, qp-rxfpdu can be NULL. The error path in siwtcprxdata dereferences qp-rxfpdu-moreddpsegs...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net/sched: schqfq: Fixed a NULL dereference when deactivating an inactive aggregate in qfqreset. qfqclass-leafqdisc-q.qlen 0 does not imply that the class itself is active. Two qfqclass objects may point to the same leafqdisc. Th...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: - For the media module, in the mtk-mdp component, error handling in the probe function has been fixed. - The function mtkmdpunregisterm2mdevice has been added to the error handling path to prevent resource leaks. - A check for...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check NULL before accessing WHAT IGT kmscursorlegacy’s long-nonblocking-modeset-vs-cursor-atomic fails with a NULL pointer dereference. This issue can be reproduced when both an eDP panel and a DP monitor are...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: char: applicom: fix NULL pointer dereference in acioctl Discovered by Atuin – Automated Vulnerability Discovery Engine. In acioctl, the validation of IndexCard and the check for a valid RamIO pointer are skipped when cmd is 6...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: sched/rt: Fixed a race condition in the pushrttask function Overview ======== When a CPU decides to call the pushrttask function and selects a task to be pushed onto another CPU’s runqueue, it will invoke the findlocklowestrq...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: virtio-net: The issue of checking the received length in large packets has been fixed. Since commit 4959aebba8c0 “virtio-net: Use the MTU size as the buffer length for large packets”, when the guest gso is disabled, the allocated...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ACPI: Processor: Fixed NULL-pointer dereferencing in acpiprocessorerratapiix4 In acpiprocessorerratapiix4, the pointer dev is first assigned an IDE device, and then reassigned as an ISA device: dev = pcigetsubsys...,...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: comedi: pcl818: fixed the null-ptr-deref in pcl818aicancel Syzbot identified an issue 1 in pcl818ai Cancel, which stems from the fact that in case of early device detachment via pcl818detach, subdevice dev-readsubdev may not have...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: md/raid5: Fixed possible null-pointer dereferences in raid5storegroupthreadcnt. The variable mddev-private is first assigned to conf, and then checked: c conf = mddev-private; if !conf… If conf is NULL, then mddev-private is also...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: scsi: csiostor: Fixed the issue of dereferencing a null pointer rn. The error exit path when rn is NULL results in dereferencing the null pointer rn through the use of the macro CSIOINCSTATS. This issue was fixed by adding a new...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: PCI: Endpoint – Avoid creating sub-groups asynchronously Asynchronous creation of sub-groups by a delayed operation could lead to a NULL pointer dereference when the driver directory is removed before the operation completes. The...