Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ALSA: firewire-motu: added a bounds check in the putuser loop for DSP events. In the DSP event handling code, the putuser loop copies event data. When the user buffer size is not aligned to 4 bytes, it may overwrite data beyond t...

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: btrfs: Fixed a use-after-free issue when attempting to join an aborted transaction. When trying to join the current transaction, if it aborts, we read its “aborted” field after unlocking fsinfo-translock, without holding any...

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

In the Linux kernel, the following vulnerability has been resolved: net/ip6tunnel: Prevents perpetual tunnel growth. Similar to the ipv4tunnel case, the ipv6 version also updates dev-neededheadroom. While the growth of tunnel headroom adjustment in commit 5ae1e9922bbd “net: iptunnel: prevent...

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

Closing an event channel in the Linux kernel can lead to a deadlock. This occurs when the closure operation is performed in parallel with an unrelated Xen console action, and the handling of a Xen console interrupt occurs in a unprivileged guest. The closure of an event channel is triggered, for...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: Fixed a use-after-free issue in Kerberos authentication. The introduction of sess-user = NULL was necessary to fix the dangling pointer created by ksmbdfreeuser. However, it is possible that another thread might be...

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

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Do not abort the filesystem when attempting to take a snapshot of a deleted subvolume. If the source file descriptor for the snapshot ioctl refers to a deleted subvolume, the following abort occurs: BTRFS: Transaction...

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

In the Linux kernel, the following vulnerabilities have been resolved: sctp: Set skstate back to CLOSED if autobind fails in sctplistenstart. In sctplistenstart called by sctpinetlisten, it should set skstate back to CLOSED if sctpautobind fails for whatever reason. Otherwise, the next time...

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

In the Linux kernel, the following vulnerability has been resolved: um: Add winch to winchhandlers before registering the winchIRQ. Registering a winchIRQ can lead to a race condition; an interrupt may occur before the winch is added to the winchhandlers list. If this happens, registerwinchirq ad...

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: Fixed a potential race condition in fib6 Droppcpufrom. syzbot detected a race condition in fib6 Droppcpufrom 1. If the compiler reads the value more than once ppcpurt, the second read might return NULL, especially if...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ice: Check the VF VSI Pointer Value in icevcaddfdirfltr. As mentioned in the commit baeb705fd6a7 “ice: Always check the VF VSI Pointer Values”, we need to perform a null pointer check on the return value of icegetvfvsi before usi...

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

In the Linux kernel, the following vulnerabilities have been resolved: tun: limits the printing rate when an illegal packet is received by the tun device. vhostworker calls tun callbacks to receive packets. If too many illegal packets arrive, tundoread continues to dump the packet contents. When...

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

In the Linux kernel, the following vulnerability has been resolved: dmaengine: Fixed a NULL pointer issue in the channel unregistration function. The dmaasyncdevicechannelregister function may fail. In the event of a failure, chan-local is freed with freepercpu, and chan-local becomes null. When...

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

In the Linux kernel, the following vulnerability has been resolved: ceph: fixed a deadlock or deadcode issue caused by misuse of dget. The lock order between denty and its parent is incorrect; we should always ensure that the parent gets the lock first. However, since this deadcode is never used,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: misc: fastrpc: Fix for copy buffer page size For non-registered buffers, the fastrpc driver copies the buffer and passes it to the remote subsystem. There is a problem with the current implementation of page size calculation, ...

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: tracing: Fix race condition in kprobe initialization causing NULL pointer dereference There is a critical race condition in kprobe initialization that can lead to NULL pointer dereference and kernel crash. 1135630.084782 Unable t...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: In the tty subsystem, for the ngsm module, a race condition occurred during the modification of the status line of a dead connection. The gsmcleanupmux function cleans up the GSM-related resources by closing all Data Link Control...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: compress: fixed to avoid a use-after-free condition on dic. Call trace: memcpy+0x128/0x250 f2fsreadmultipages+0x940/0xf7c f2fsmpagereadpages+0x5a8/0x624 f2fsreadahead+0x5c/0x110 pagecacheraunbounded+0x1b8/0x590...

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

In the Linux kernel, the following vulnerability has been resolved: arp: Prevent overflow in arpreqget. Syzkaller reported an overflow during the write operation in arpreqget. 0 When the ioctlSIOCGARP function is called, arpreqget retrieves a neighbor entry and copies neigh-ha to struct...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: Handling of errors when calling otx2mboxgetrsp in otx2dcbnl.c has been improved. A check for the error pointer was added after calling otx2mboxgetrsp...

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: Input: imxsckey – fixed memory corruption upon unloading. It should be labeled as “priv”, but we accidentally passed “&priv”, which is an address in the stack. This can lead to memory corruption when the imxsckeyaction function i...