Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in the Linux kernel before version 6.3.4. ksmbd has a buffer overflow vulnerability in the smb2findcontextvals function, when the namelen of createcontext is larger than the length of the tag...

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: fou: Do not allow 0 for FOUATTRIPPROTO. The issue mentioned in the previous patch still exists in fouudprecv. If FOUATTRIPPROTO is set to 0, the buffer skb is neither freed by fouudprecv nor sent through ipprotocoldeliverrcu. Let...

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: e1000: fixed an out-of-bounds error in e1000tbishouldaccept In e1000tbishouldaccept, we read the last byte of the frame via “datalength - 1” to evaluate the TBI workaround. If the descriptor’s reported length is zero or greater...

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: gue: Fix skb memleak with inner IP protocol 0. syzbot reported skb memleak below. 0 The repro generated a GUE packet with its inner protocol 0. gueudprecv returns -guehdr-protoctype for "resubmit" in ipprotocoldeliverrcu, but thi...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix insufficient bounds propagation from adjustscalarminmaxvals Kuee reported a corner case where the tnum becomes constant after the call to regboundoffset, but the bounds of the register are not correct. In particular, the...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: veth: Ensure that the eth header is in the linear part of the skb structure. After feeding a decapsulated packet to a veth device using actmirred, skbheadlen might be set to 0. However, vethxmit calls devforwardskb, which expects...

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: scsi: ufs: exynos: Fixed the programming of HCIUTRLNEXUSTYPE. On the Google gs101, the number of UTP transfer request slots is 32. In this case, the driver incorrectly programs UTRLNEXUSTYPE as 0. This occurs because the left sid...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The rcubarrier function was called in ksmbdserverexit. The bug is triggered due to racing between closing a connection and the rmmod operation. In ksmbd, rcubarrier is not called at the time of module unloading, so nothing...

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

In the Linux kernel, the following vulnerability has been resolved: net: can: j1939: j1939xtprxrtssessionactive – The session is deactivated upon receiving the second RTS packet. Since j1939tprxtimer calls j1939sessiondeactivateactivatenext only when the timer is enabled, we need to call this...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: speakup: Fixed the bug where sizeof was used instead of ARRAYSIZE. The “buf” pointer is an array of u16 values. This code should use ARRAYSIZE which is 256, instead of sizeof which is 512. Otherwise, it may still lead to...

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

In the Linux kernel, the following vulnerability has been resolved: BPF: Fixed an issue where reservations were advanced beyond their limit in the ringbuf structure. The BPF ring buffer is internally implemented as a circular buffer of a power-of-2 size, with two logical and ever-increasing...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

A flaw was discovered in the filelockinit function in the fs/locks.c file within the Linux kernel. This issue can lead to host memory exhaustion, as memcg does not limit the number of POSIX file locks that can be created...

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

In the Linux kernel, the following vulnerability has been resolved: crypto: bcm – Fix pointer arithmetic In spu2dumpomd, the value of ptr is increased by ciphkeylen, instead of hashivlen. This could lead to exceeding the buffer boundaries. This bug has been fixed by changing ciphkeylen to...

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: lapb: increase LAPBHEADERLEN It is unclear whether the net/lapb code is ready for 8021q. We can at least avoid crashes like the following: skbuff: skbunderpanic: text:ffffffff8aabe1f6 len:24 put:20 head:ffff88802824a400...

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: 9p/xen: fixed the issue of releasing the IRQ twice. Kernel logs indicate that the IRQ was released twice. The correct device ID must be passed during the IRQ release process. Dominique: removed the confusing variable “reset” to 0...

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: prevented UAF in ip6sendskb syzbot reported a UAF in ip6sendskb 1 After ip6localout has returned, we no longer can safely dereference rt, unless we hold rcureadlock. A similar issue was fixed in the commit a688caa34beb...

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: ad7780: fixed the issue of dividing by zero in ad7780writeraw. In ad7780writeraw, val2 can be zero, which may lead to a division by zero error in DIVROUNDCLOSEST. ad7780writeraw is based on iioinfo’s writeraw function. While val ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: md: fixed the UAF issue when iterating the allmddevs list While iterating the allmddevs list from mdnotifyreboot and mdexit, the listforeachentry Safe mechanism is used. This can lead to a race condition with deletint, causing...

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: The dummy regulator must be checked before being used. Due to asynchronous driver probing, there is a possibility that the dummy regulator may not have been checked when accessed for the first time...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: An out-of-bounds access issue in parsesecdesc has been fixed. If osidoffset, gsidoffset, and dacloffset can be greater than smbntsdstruct.size. If they are smaller, it could lead to an out-of-bounds situation. Additionally...