Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Discard Beacon frames sent to non-broadcast addresses Beacon frames are required to be sent to the broadcast address. See IEEE Std 802.11-2020, 11.1.3.1: “The ‘Address 1’ field of the Beacon frame shall be set to...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: authgss: Fixed memory leaks in XDR decoding error paths. The functions gssxdecctx, gssxdecstatus, and gssxdecname allocate memory through gssxdecbuffer, which calls kmemdup. When a subsequent decoding operation fails, the...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: crypto: asymmetrickeys – prevented overflow in asymmetrickeygenerateid. Use checkaddoverflow to prevent potential integer overflows when adding the lengths of binary blobs and the size of an asymmetrickeyid structure. Return...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: s390/ctcm: Fixed double-kfree issue. The function ‘mpcrcvdsweepreqmpcginfo’ is called conditionally from the function ‘ctcmpcunpackskb’. It frees the passed mpcginfo. After that, a call to the function ‘kfree’ within the function...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: A memory leak was fixed in getfileallinfo. In getfileallinfo, if vfsgetattr fails, the function returns immediately without freeing the allocated filename, resulting in a memory leak. This issue was fixed by freeing the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: fbdev: Added bounds checking in bitputcs to prevent out-of-bounds writes using vmalloc. Added bounds checking to prevent writes beyond the framebuffer boundaries when rendering text near the screen edges. Return early if the Y...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bonding: A net pointer to skbflowdissect must be provided. After the code “net: plumb network namespace into skbflowdissect”, we need to provide a net pointer to skbflowdissect, either through skb-dev, skb-sk, or a user-provided...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: fixed a NULL pointer dereferencing in hciuartwritework The hciuartsetproto function sets HCIUARTPROTOINIT before calling hciuartregisterdev. This function calls proto-open to initialize hu-priv. However, if a...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: AppArmor: The recursive profile removal method has been replaced with an iterative approach. The profile removal code uses recursion when removing nested profiles, which can lead to kernel stack exhaustion and system crashes...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: can: usb8dev: usb8devreadbulkcallback: fixed the URB memory leak. The memory leak was fixed in a similar manner to that in commit 7352e1d5932a “can: gsusb: gsusbreceivebulkcallback: fixed the URB memory leak”. In usb8devopen -...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: xfs: check the return value of xchkscrubcreatesubord. This function should be fixed to return NULL instead of the mangled ENOMEM value. Additionally, the calling functions should be corrected to actually check for a null pointer...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: nfsd: Do not ignore the return code of svcprocregister. Currently, nfsdprocstatinit ignores the return value of svcprocregister. If the creation of the procfile fails, the kernel will issue a WARN when it attempts to remove the...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: crypto: iaa – Fixed an out-of-bounds index issue in findemptyiaacompressionmode. The local variable ‘i’ is initialized with -EINVAL, but the for loop immediately overwrites it, and -EINVAL is never returned. If no empty...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Remove the user-triggered WARN message emitted by nestedsvmloadcr3. Remove the WARN message generated by svmsetnestedstate in nestedsvmloadcr3 failure cases. This message can be easily triggered from userspace by...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: In the bpf and arm64 architectures, there is a vulnerability where forced 8-byte alignment of the JIT buffer is required to prevent atomic tearing. The struct bpfplt structure contains a u64 target field. Currently, the BPF JIT...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: wifi: Avoid exposing kernel data to user space through struct iwpoint struct iwpoint contains a 32-bit field on 64-bit architectures. c struct iwpoint void user pointer; / Pointer to the data in user space / u16 length; / Number ...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: hns3 – Fixed the double-free issue with the tx spare buffer. In the function hns3setringparam, a temporary copy of the ring structure tmprings is created for rollback purposes. However, the txspare pointer in the original ri...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: BPF: Fixed the bpfxdpstorebytes proto for read-only arguments. While making some maps in Cilium read-only from the BPF side, we noticed that the bpfxdpstorebytes proto is incorrect. In particular, the verifier threw the following...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: nvme-fc: Release the admin tagset if init fails. nvmefabrics creates a NVMe/FC controller in the following path: nvmfdevwrite → nvmfcreatectrl → nvmefccreatectrl → nvmefcinitctrl nvmefcinitctrl allocates the admin blk-mq resource...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: xfs: fixed a UAF Use-After-Value issue in xattr repair. The xchksetupxattrbuf function can allocate a new value buffer; therefore, any reference to ab-value before the call could become a dangling pointer. This issue was fixed...