CVE-2026-52970 netfilter: nft_ct: fix missing expect put in obj eval

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: fix missing expect put in obj eval nftctexpectobjeval allocates an expectation and may call nfctexpectrelated, but never drops its local reference. Add nfctexpectputexp before return to balance allocation...

CVE-2026-52959 virt: sev-guest: Do not use host-controlled page order in cleanup path

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Do not use host-controlled page order in cleanup path When issuing an extended guest request SVMVMGEXITEXTGUESTREQUEST, getextreport allocates a buffer to retrieve a certificate blob from the host, keeping track ...

CVE-2026-52959

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Do not use host-controlled page order in cleanup path When issuing an extended guest request SVMVMGEXITEXTGUESTREQUEST, getextreport allocates a buffer to retrieve a certificate blob from the host, keeping track ...

CVE-2026-52959 virt: sev-guest: Do not use host-controlled page order in cleanup path

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Do not use host-controlled page order in cleanup path When issuing an extended guest request SVMVMGEXITEXTGUESTREQUEST, getextreport allocates a buffer to retrieve a certificate blob from the host, keeping track ...

CVE-2026-52950 drm/xe/dma-buf: fix UAF with retry loop

In the Linux kernel, the following vulnerability has been resolved: drm/xe/dma-buf: fix UAF with retry loop Retry doesn't work here, since bo will be freed on error, leading to UAF. However, now that we do the alloc & init before the attach, we can now combine this as one unit and have the init d...

CVE-2026-52950 drm/xe/dma-buf: fix UAF with retry loop

In the Linux kernel, the following vulnerability has been resolved: drm/xe/dma-buf: fix UAF with retry loop Retry doesn't work here, since bo will be freed on error, leading to UAF. However, now that we do the alloc & init before the attach, we can now combine this as one unit and have the init d...

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...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: macvlan: fixed a possible Use-after-Allocation UAF in macvlanforwardsource. Added RCU protection for the vlan field in struct macvlansourceentry. Whenever macvlanhashdelsource is called, we must clear the entry-vlan pointer befor...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: drm/buddy: This issue is prevented by validating the rounded allocation size. When DRMBUDDYCONTIGUOUSALLOCATION is set, the requested size is rounded up to the next power of two using rounduppowoftwo. Similarly, for non-contiguou...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: drm/xe: The numsyncs parameter has been limited to prevent excessively large allocations. The exec and vmbind ioctls allow userspace to specify an arbitrary numsyncs value. Without proper bounds checking, a very large numsyncs...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: libceph: freechooseargmap has been made resistant to partial allocations that may lead to NULL pointer dereferencing. freechooseargmap may dereference a NULL pointer if its caller fails after a partial allocation. For example, in...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net/rds: Fixed a circular locking dependency in rdstcptune syzbot reported a circular locking dependency in rdstcptune, where sknetrefcntupgrade is called while holding the socket lock:...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc4-topology: Corrected the allocation size for bytes controls. The size of the data behind scontrol-ipccontroldata for bytes controls is as follows: 1 sizeofstruct sofipc4controldata + // kernel-only struct 2...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: Media: Verisilicon: AV1 – Fix for the tile info buffer size. Each tile consists of: rowsb, colsb, startpos, and endpos 4 bytes each. Therefore, the total memory required is AV1MAXTILES 16 bytes. Use the correct define to allocate...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: gfs2: Prevent recursive memory reclamation The new inode function returns a new inode with inode-imapping-gfpmask set to GFPHIGHUSERMOVABLE. This value includes the GFPFS flag, allowing allocations in that address space to...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: mm/pagealloc: The migrate type of all pageblocks during coalescence needs to be changed. When a page is freed, it coalesces with a buddy page into a higher-order page whenever possible. When the migrate type of the buddy page...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: nvme: fixed memory allocation in nvmeprreadkeys nvmeprreadkeys takes numkeys from userspace and uses it to calculate the allocation size for rse via structsize. The upper limit is PRKEYSMAX 64K. A malicious or buggy userspace...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: udptunnel: Use netdevwarn instead of netdevWARN. netdevWARN uses WARN/WARNON to print a backtrace along with file and line information. In this case, udptunnelnicregister failing due to a memory allocation failure e.g., kzalloc o...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ocfs2: A bug in the ocfs2findvictimchain function was fixed. The syzbot reported a kernel bug in ocfs2findvictimchain. This bug occurs because the clnextfreerec field of the allocation chain list the next free slot in the chain...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: block: fixed a memory leak in blkdevissuezeropages. The check for the fatal signal was moved before the bioalloc function, thereby preventing a memory leak when BLKDEVZEROKILLABLE is set and a fatal signal is pending. Previously,...