Astra Linux - уязвимость в linux, linux-5.10, linux-5.15, linux-6.1

Transmitted requests in Xen’s virtual network protocol can consist of multiple parts. Although none of them are actually useful, except for the initial part, any of these parts can be of zero length, meaning they carry no data at all. In addition to the certain initial portion of the data to be...

Astra Linux - уязвимость в linux-5.10, linux

A flaw was discovered in the Linux kernel’s networking code. A use-after-free occurred in the way the schsfb enqueue function utilized the socket buffer SKB cb field after the same SKB had been enqueued and freed into a child qdisc. This flaw allows a local, unprivileged user to cause a system...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerabilities have been resolved: nfc: fdp: Fixed a potential memory leak in fdpncisend. The fdpncisend function calls fdpncii2cwrite, which does not free the skb object after its execution. As a result, when fdpncii2cwrite is completed, the skb object will...

Astra Linux - уязвимость в linux-5.10, linux

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fixed the issue where the memory of skmsg was charged twice. If tcpbpfsendmsg is running during a cleanup operation, psock may be freed. The sequence of operations is as follows: tcpbpfsendmsg, tcpbpfsendverdict,...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: net/handshake: The destructor was restored after a submission failure. The handshakereqsubmit function replaces sk-skdestruct, but never restores it when the submission fails before the request is hashed. In this case,...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: can: dev: canrestart: fix use after free bug After calling netifrxniskb, dereferencing skb is unsafe. In particular, the canframe field, which aliases skb memory, is accessed after the netifrxni function in: stats-rxbytes +=...

Astra Linux - уязвимость в linux-5.10, linux

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix NULL-ptr-deref in rxeqpdocleanup when socket create failed There is a null-ptr-deref when mount.cifs over rdma: BUG: KASAN: null-ptr-deref in rxeqpdocleanup+0x2f3/0x360 rdmarxe Read of size 8 at addr 000000000000001...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: skbuff: fixed the coalescing behavior for pagepool fragment recycling. Fixed a use-after-free issue when using pagepool with page fragments. We encountered this problem during normal RX processing in the hns3 driver: 1 Initially,...

Astra Linux - уязвимость в linux-5.10, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: scsi: iscsitcp: It is necessary to check that sock is valid before assigning it to the variable. The validity of sock should be checked to prevent incorrect values. This change was introduced in commit 57569c37f0ad...

Astra Linux - уязвимость в linux-5.10, linux

In the Linux kernel, the following vulnerability has been resolved: In the net: stream module, the purge skerrorqueue operation in skstreamkillqueues has been fixed. Changheon Lee reported TCP socket leaks, with a detailed reproduction code. It appears that we encounter TCP socket leaks in the...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: udp: Fixed multiple wraparounds of sk-skrmemalloc. udpenqueuescheduleskb has the following condition: if atomicread&sk-skrmemalloc sk-skrcvbuf goto drop; sk-skrcvbuf is initialized by net.core.rmemdefault and can later be...

Astra Linux - уязвимость в linux, linux-5.15, linux-5.10

In the Linux kernel, the following vulnerability has been resolved: TCP/UDP: Fixed memory leaks related to sk and zerocopy SKBS with TX timestamps. syzkaller reported 0 memory leaks of an UDP socket and ZEROCOPY SKBS. We can reproduce the problem with the following sequence: sk = socketAFINET,...

Astra Linux - уязвимость в cloud-init

In cloud-init through 25.1.2, the systemd socket unit cloud-init-hotplugd.socket is included, with a default SocketMode of 0666, allowing world-write permissions. This is used for the "/run/cloud-init/hook-hotplug-cmd" FIFO. A non-privileged user can trigger hotplug-hook commands...

Astra Linux - уязвимость в linux-5.10, linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: rpl: Fix use-after-free in rpldosrhinline. Running lwtdstcacherefloop.sh in selftest with KASAN triggers the splat below 0. rpldosrhinline fetches ipv6hdrskb and accesses it after skbcowhead, which is illegal as the header could ...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Flushing delayed SKBs while releasing RXE resources When SKB packets are sent out, they still depend on rxe resources, such as QP and sk. If these resources are released when the SKB packets are destroyed, call traces m...

Astra Linux - уязвимость в linux-5.10, linux-5.15

In the Linux kernel, the following vulnerabilities have been resolved: net: qrtr: Fixed a bug related to access to the uninit variable in qrtrtxresume. Syzbot reported the following bugs: ===================================================== BUG: KMSAN: uninit-value in qrtrtxresume+0x185/0x1f0...

Astra Linux - уязвимость в linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: The etases58x driver does not populate the ndochangemtu function to prevent a buffer overflow. Sending a PFPACKET message allows bypassing the CAN driver’s logic and directly reaching the xmit function. The only check performed b...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerabilities have been resolved: net: fixed a refcount bug in skpsockget 2 Syzkaller reported the refcount bug as follows: ------------ cut here ------------ refcountt: saturated; memory was leaking. WARNING: CPU: 1 PID: 3605 at lib/refcount.c:19...

Astra Linux - уязвимость в linux, linux-5.10

In the Linux kernel, the following vulnerability has been resolved: net: cdceem: Fix for the leak in eemfixup when usbnet transmits a skb. When usbnet transmits a skb, it is processed in eemtxfixup. If skbcopyexpand fails, it returns NULL. In this case, usbnetstartxmit has no chance to free the...

Astra Linux - уязвимость в linux-5.10, linux-6.1, linux, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: netlabel: Fixed a NULL pointer exception caused by CALIPSO on IPv4 sockets. When calling netlblconnsetattr, addr-safamily is used to determine the function’s behavior. If sk is an IPv4 socket, but the connect function is called...