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

In the Linux kernel, the following vulnerability has been resolved: ceph: The “use after free” error was prevented in encodecapmsg. In the file fs/ceph/caps.c, within encodecapmsg, the “use after free” error was detected by KASAN at this line – cephbuffergetarg-xattrbuf;. This means that before t...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: HID: i2c-hid-of: fix NULL dereference on failed power-up Some time ago, the I2C HID implementation was split into an ACPI and OF part. However, the new OF driver never initializes the client pointer, which is dereferenced in case...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: dm-crypt, dm-verity: Disable tasklets Tasklets have an inherent problem with memory corruption. The taskletactioncommon function calls tasklettrylock, then it calls the tasklet callback, and then it calls taskletunlock. If the...

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

In the Linux kernel, the following vulnerabilities have been resolved: usb: cdns3: fixed memory usage after freeing variables at cdns3gadgetepdisable … cdns3gadgetepfreerequest&privep-endpoint, &privreq-request; listdelinit&privreq-list; ‘privreq’ is actually freed after cdns3gadgetepfreerequest...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ext4: Avoid dividing by 0 in the mbupdateavgfragmentsize function when the block bitmap is corrupted. Determine whether to set bbfragments to 0 instead of determining bbfree to eliminate the risk of dividing by zero when the bloc...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: Avoid allocating blocks from a group with a corrupted block bitmap in ext4mbtrybestfound. Determine whether the group block bitmap is corrupted before using acbex in ext4mbtrybestfound to prevent allocating blocks from a...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: “aoe”: avoided potential deadlock at setcapacity. setcapacity has been moved outside of the section handled by &d-lock. This prevents possible unsafe locking scenarios due to interrupts. Here’s the sequence of events: 1...

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

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free rxdatareassemblyskb on NCI device cleanup rxdatareassemblyskb is stored during NCI data exchange for processing fragmented packets. It is dropped only when the last fragment is processed, or when an NTF packet with...

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

In the Linux kernel, the following vulnerability has been resolved: cifs: fixed a underflow issue in parseserverinterfaces. In this loop, we iterate through the buffer. After processing each item, we check whether the sizeleft is greater than the minimum size required. However, the problem arises...

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: net: ice: Fixed a potential NULL pointer dereference in the icebridgesetlink function. The icebridgesetlink function may encounter a NULL pointer dereference if nlmsgfindattr returns NULL, and brspec is dereferenced subsequently ...

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: drm/amd/display: The memory leak in dmswfini has been fixed. After destroying dmubsrv, the memory associated with it is not freed, resulting in a memory leak: unreferenced object 0xffff896302b45800 size 1024: comm "udev-worker",...

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

In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fixed a memory leak in initcreditreturn. When dmaalloccoherent fails to allocate dd-crbasei.va, initcreditreturn should deallocate dd-crbase and dd-crbasei that were allocated earlier. Otherwise, those resources will nev...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: crypto: virtio/akcipher – Fixed a stack overflow issue in memcpy. The value of sizeofstruct virtiocryptoakciphersessionpara is less than sizeofstruct virtiocryptoopctrlreq::u. Copying more bytes from the stack variable leads t...

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

In the Linux kernel, the following vulnerabilities have been resolved: nilfs2: Fixed data corruption in the dsync block recovery process for small block sizes. The helper function nilfsrecoverycopyblock in nilfsrecoverydsyncblocks incorrectly calculates the on-page offset when copying repair data...

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

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: sr – fixed possible use-after-free and nullptrderef issues. The pernet operations structure for the subsystem must be registered before registering the generic netlink family...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Fixed a race condition between bpftimercancelandfree and bpftimercancel. This race condition could lead to a UAF Use-After-Free error involving the timer-timer variable. Here’s the detailed explanation: In bpftimer...

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: imx: csc/scaler: fix v4l2ctrlhandler memory leak The memory allocated in v4l2ctrlhandlerinit is freed upon release...

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: net: openvswitch: Fix Use-After-Free in ovsctexit Since kfreercu, which is called during the hlistforeachentryrcu traversal of ovsctlimitexit, is not part of the RCU read critical section, it is possible that the RCU grace period...

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: Packet: Annotate data-races around ignoreoutgoing ignoreoutgoing is accessed without a lock from devqueuexmitnit and packetgetsockopt. Add appropriate READONCE/WRITEONCE annotations. Syzbot reported: BUG: KCSAN: Data-race 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: Media: pvrusb2: Fix for a UAF in pvr2contextsetnotify Reported by Syzbot Bug: KASAN: “Slab-use-after-free” in pvr2contextsetnotify+0x2c4/0x310; file: drivers/media/usb/pvrusb2/pvrusb2-context.c, line 35. A 4-byte read at address...