Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netsched: Keep allochash updated after hash allocation. In commit 599be01ee567 “netsched: fix an OOB access in clstcindex”, I moved the cp-hash calculation before the first tcindexallocperfecthash call. However, cp-allochash...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables: Unregistering flowtable hooks upon netns exit. Unregistering flowtable hooks before they are released via nftablesflowtabledestroy; otherwise, the hook code may report a Use-After-Free error. BUG: KASAN:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ping: Fixed a potential NULL dereference for /proc/net/icmp. After committing the change dbca1596bbb0 “ping: Converted to RCU lookups, removed rwlock”, we use RCU for ping sockets. However, we should still use a spinlock for...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: can: j1939: prevents deadlock by moving j1939skerrqueue This commit addresses a deadlock situation that can occur in certain scenarios, such as when running data TP/ETP transfers and subscribing to the error queue while...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ethtool: Do not perform operations on net devices that are not yet registered. There is a short period between when a net device starts to be unregistered and when it is actually removed from the list of available devices. During...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the net/sched/schcbq.c file of the Linux kernel, from version 6.1.4 onwards, cbqclassify allows attackers to cause a denial of service due to type confusion. Non-negative numbers can sometimes indicate a TCACTSHOT condition rather than valid classification results, leading to improper processi...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: usb: legacy: ncm: Fixed an NPE in gncmBind. The commit 56a512a9b410 “usb: gadget: fncm: Aligned netdevice lifecycle with bind/unbind” deferred the allocation of the netdevice. This change results in a NULL pointer derefrence in t...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/smc: Avoid overwriting the copies of clcsock callback functions. The clcsock callback functions will be saved and replaced during the fallback process. However, if the fallback occurs more than once, the copies of these...

Astra Linux – Vulnerability in Linux 5.10, Linux

A NULL pointer dereference flaw was discovered in the UNIX protocol, specifically in the file net/unix/diag.c, within unixdiaggetexact in the Linux kernel. The newly allocated skb does not have an sk, resulting in a NULL pointer. This flaw could allow a local user to crash the system or potential...

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

A issue was discovered in the Linux kernel before version 6.6.8. The atalkioctl function in net/appletalk/ddp.c has a use-after-free issue due to a race condition involving atalkrecvmsg...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net/sched: fixed the lockdep issue in qdisctreereducebacklog The qdisctreereducebacklog function is called with the qdisc lock held; this issue was not addressed in the previous version. We must use qdisclookuprcu instead of...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: NET: caif: Fixed a use-after-free in cfusbldevicenotify. syzbot reported a use-after-free in cfusbldevicenotify 1. This causes a stack trace like below: BUG: KASAN: Use-after-free in cfusbldevicenotify, line 0x7c9/0x870,...

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

A vulnerability was discovered in vhostnewmsg in drivers/vhost/vhost.c within the Linux kernel. This issue arises due to the improper initialization of memory in messages transmitted between virtual guests and the host operating system, as implemented in the vhostnewmsg function. This vulnerabili...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: sched: clsu32: Undo tcfbindfilter if u32replacehwknode When u32replacehwknode fails, we need to undo the tcf BindFilter operation performed at u32setparms...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio-pci: The result size returned for the admin command completion has been corrected. The result size returned by virtiopciadmindevpartsget is 8 bytes larger than the actual result data size. This occurs because the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: pfcp: The device is destroyed along with the udp socket’s netns structure. The pfcpnewlink function links the device to a specific netns in devnet instead of net, where an udp tunnel socket is created. Even when net is removed, t...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: Fixed the return type of netcpndostartxmit With Clang’s Kernel Control Flow Integrity kCFI, CONFIGCFICLANG, indirect call targets are validated against the expected function pointer prototype to ensure that the...

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: net/sched: actskbmod: prevent kernel-infoleak The syzbot discovered that tcfskbmoddump was copying four bytes from the kernel stack to user space 1. The issue here is that ‘struct tcskbmod’ has a four-byte hole. We need to cle...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/smc: fixed the connection leak issue. There is a potential leak issue under the following execution sequence: smcrelease, smcconnectwork if sk-skstate == SMCINIT sendclcconfirim tcpabort; ... sk-skstate = SMCACTIVE...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio-net: A overflow occurred within the virtnetrqalloc function. When a fragment receives only one page, it may lead to regressions in the virtual machine. This issue is particularly significant if the sysctl...