CVE-2025-68823

CVE-2025-68823: Linux kernel ublk deadlock when reading partition table. If a process (e.g., udev) opens a ublk block device to read the partition table via bdev_open(), a deadlock can occur because blkdev_release() re-acquires disk->open_mutex in the same context. The fix disables bottom halv...

CVE-2025-68823 ublk: fix deadlock when reading partition table

In the Linux kernel, the following vulnerability has been resolved: ublk: fix deadlock when reading partition table When one processsuch as udev opens ublk block device e.g., to read the partition table via bdevopen, a deadlock1 can occur: 1. bdevopen grabs disk-openmutex 2. The process issues re...

CVE-2025-68819

In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb: dtv5100: fix out-of-bounds in dtv5100i2cmsg rlen value is a user-controlled value, but dtv5100i2cmsg does not check the size of the rlen value. Therefore, if it is set to a value larger than sizeofst-data, an...

CVE-2025-68813

The CVE-2025-68813 affects the Linux kernel IPVS IPv4 route error path. A NULL pointer dereference occurs when dst_link_failure() is called with skb->dev unset, leading to ipv4_link_failure() → ipv4_send_dest_unreach() → fib_compute_spec_dst() dereferencing skb->dev. The root cause is that ...

CVE-2025-68801 mlxsw: spectrum_router: Fix neighbour use-after-free

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrumrouter: Fix neighbour use-after-free We sometimes observe use-after-free when dereferencing a neighbour 1. The problem seems to be that the driver stores a pointer to the neighbour, but without holding a reference ...

CVE-2025-68800

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrummr: Fix use-after-free when updating multicast route stats Cited commit added a dedicated mutex instead of RTNL to protect the multicast route list, so that it will not change while the driver periodically traverse...

CVE-2025-68780 sched/deadline: only set free_cpus for online runqueues

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: only set freecpus for online runqueues Commit 16b269436b72 "sched/deadline: Modify cpudl::freecpus to reflect rd-online" introduced the cpudlset/clearfreecpu functions to allow the cpudl::freecpus mask to be...

CVE-2025-68769

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix return value of f2fsrecoverfsyncdata With below scripts, it will trigger panic in f2fs: mkfs.f2fs -f /dev/vdd mount /dev/vdd /mnt/f2fs touch /mnt/f2fs/foo sync echo 111 /mnt/f2fs/foo f2fsio fsync /mnt/f2fs/foo f2fsio...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Disallows dirty tracking if the page walk is incoherent. Dirty page tracking relies on the IOMMU to atomically update the dirty bit in the paging-structure entry. For this operation to succeed, the paging-structure...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: EDAC/i10nm: Skipping DIMM enumeration on a disabled memory controller When loading the i10nmedac driver on some Intel Granite Rapids servers, a call trace may appear as follows: UBSAN: Shift-out-of-bounds in...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: Crash: Fix for crashkernel resource shrinkage. When crashkernel is configured with a high reservation, shrinking its value below the low crashkernel reservation causes two issues: 1. Invalid crashkernel resource objects. 2. Kerne...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mailbox: zynqmp-ipi: Fixed an issue of out-of-bounds access during the mailbox cleanup loop. The cleanup loop was initially running at the wrong array index, leading to out-of-bounds access. The loop now starts at the correct ind...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: ceph: fixed the issue where multifs mds auth caps was applied incorrectly The mds auth caps check should also validate the fsname along with the associated caps. Failure to do so would result in applying the mds auth caps of o...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: Do not assert that we found a block group item when creating a free space tree. Currently, when building a free space tree using populatefreespacetree, if we are not using the block group tree feature, we always expect to...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: iommufd: Fixed a race condition during abort for file descriptors fput does not actually call fileoperations’ release method synchronously. Instead, it places the file in a work queue and releases it eventually. This is generally...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Media: MediTech; vcodec: Fixed a resource leak related to the scp device during firmware initialization. On MediTech devices with a System Companion Processor SCP, the mtkscp structure must be explicitly removed to avoid a resour...

CVE-2025-40259 affecting package kernel for versions less than 6.6.119.3-1

CVE-2025-40259 affecting package kernel for versions less than 6.6.119.3-1. An upgraded version of the package is available that resolves this issue...

CVE-2025-68343 affecting package kernel for versions less than 6.6.119.3-1

CVE-2025-68343 affecting package kernel for versions less than 6.6.119.3-1. An upgraded version of the package is available that resolves this issue...

kernel: sctp: avoid NULL dereference when chunk data buffer is missing

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid NULL dereference when chunk data buffer is missing chunk-skb pointer is dereferenced in the if-block where it's supposed to be NULL only. chunk-skb can only be NULL if chunk-headskb is not. Check for fraglist instead...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000185)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000185 advisory. The Broadcom brcmfmac WiFi driver prior to commit a4176ec356c73a46c07c181c6d04039fafa34a9f is vulnerable to a frame validation bypass. If the brcmfmac driver receive...