Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mtdchar: Fixed integer overflow in read/write ioctls. The req.start and req.len variables are u64 values that originate from the user at the beginning of the function. We mask the high 32 bits of req.len, ensuring that its value ...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ASoC: pxa: fixed a null-pointer dereference in filter The kasprintf function would return a NULL pointer when kmalloc fails to allocate memory. It is necessary to check the return pointer before calling strcmp...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: archtopology: The incorrect error check in topologyparsecpucapacity was fixed. The incorrect use of PTRERRORZERO in topologyparsecpucapacity was also corrected. This caused the code to proceed with NULL clock pointers. The curren...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: comedi: A flaw in the comedibufmunge function was addressed. This function performs a modulo operation async-mungechan %= async-cmd.chanlistlen, without first checking whether chanlistlen is zero. If a user program submits a...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The lock-range check for files with equal size is skipped, to avoid underflow when size == 0. When size equals the current isize including 0, the code that calls checklockrangefilp, isize, size - 1, WRITE will compute size...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: usb: musb: Fixed the overflow bug in musbgadget.c The musbgadgetqueue function calls the USB function device. This function adds the passed request to musbep::reqlist. If request-length musbep-packetsz and isbuffermappedreq retur...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/powernv/sriov: Perform a null check on iov before dereferencing iov. Currently, the pointer iov is dereferenced before the null check of iov, which can lead to a null pointer dereference error. This issue is fixed by movi...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: fslupm: A bug in the funexecop function was fixed; a “off-by-one” test was corrected. The “op-cs” values are copied into “fun-mchipnumber”, which is used to access the “mchipoffsets” and “rnbgpio” arrays. These arra...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: media: af9005: Fix null-ptr-deref in af9005i2cxfer In af9005i2cxfer, msg is controlled by the user. When msgi.buf is null and msgi.len is zero, previous checks on msgi.buf will still be performed. Malicious data will eventually...

Astra Linux – Vulnerability in 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 in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: sofsdw: Prevent a jump to NULL for the addsidecar callback In the createsdwdailink function, it is checked that sofend-codecinfo-addsidecar is not NULL before calling it. The original code assumed that if...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Netfilter: xtnfacct – Do not assume that the acct name is terminated with a null character. BUG: KASAN: Out-of-bounds access to memory in ..lib/vsprintf.c:721 Size 1 of the data was read from addr ffff88801eac95c8 by task...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: jfs: Regular file corruption check The reproducer builds a corrupted file on disk with a negative isize value. Add a check when opening this file to avoid subsequent operation failures...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/msm/dp: fixed memory corruption due to too many bridges. Added a missing sanity check on the bridge counter to prevent corruption of data beyond the fixed-sized bridge array, in case there are more than eight bridges...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Enhanced the attribute size check This combines the overflow and boundary check so that all attribute sizes will be properly examined during enumeration. 169.181521 BUG: KASAN: Out-of-bounds access in...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: md/raid10: check slab-out-of-bounds in mdbitmapgetcounter If we write a large number to md/bitmapsetbits, mdbitmapcheckpage will return -EINVAL because ‘page = bitmap-pages’. However, the returned value was not checked immediatel...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: Corrected the incorrect validation of the next buffer length in smb2setea. There are multiple smb2eainfo buffers in the FILEFULLEAINFORMATION request from the client. ksmbd uses the NextEntryOffset of the current...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Added a check for kzalloc. Since kzalloc may fail and return a NULL pointer, it’s better to check the return value in order to avoid dereferencing a NULL pointer. Patchwork:...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drivers/md/md-bitmap: Check the return value of mdbitmapgetcounter. Check the return value of mdbitmapgetcounter in case it returns a NULL pointer, which would lead to a null pointer dereferencing. v2: Updated the check to includ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: drm/vc4: Do not check if plane-state-fb == state-fb Currently, when using non-blocking commits, the following kernel warnings can be observed: 110.908514 ------------ Cut here ------------ 110.908529 refcountt: Underflow; Use...