Astra Linux – Vulnerability in Linux 5.10

A use-after-free flaw was discovered in the Linux kernel’s iouring subsystem. This flaw occurs when a user sets up a ring using IORINGSETUPIOPOLL, with multiple tasks completing submissions within that ring. This flaw allows a local user to crash the system or escalate their privileges on the...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: mdio: fixed an undefined behavior in bit shifting for mdiobusregister. Shifting a signed 32-bit value by 31 bits is undefined; therefore, the significant bit was changed to unsigned. The UBSAN warning appears as follows:...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: gpio: sifive: Fix the refcount leak in sifivegpioprobe. The function ofirqfindparent returns a node pointer with the refcount incremented. We should use ofnodeput on it when it is no longer needed. Add ofnodeput to avoid the...

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

In the Linux kernel, the following vulnerability has been resolved: s390/vfio-ap: fixed a memory leak in the vfioap device driver. The device release callback function invoked to release the matrix device uses the devgetdrvdata function to retrieve the pointer to the vfiomatrixdev object in order...

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: HID: Multitouch: Corrected the reference to the devm device for the hidinput inputdev name. The reference should point to the HID device, rather than the input device, for the allocation of the inputdev name. Referring to the...

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

A vulnerability was identified in the Linux Kernel versions up to 4.19.316/5.4.278/5.10.220/5.15.161. This affects the tcpgetsockopt/tcpsetsockopt functions of the TCP Handler component. Such manipulation leads to a race condition. This attack involves a high level of complexity. The vulnerabilit...

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

In the Linux kernel before version 6.4.5, the file driver/gpu/drm/drmatomic.c contained a use-after-free during a race condition between a nonblocking atomic commit and a driver unloading process...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

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

There is a use-after-free in iouring in the Linux kernel. The signalfdpoll and binderpoll functions use a waitqueue whose lifetime is the current task. The waitqueue will send a POLLFREE notification to all waiters before it is freed. Unfortunately, the iouring poll does not handle POLFREE. This...

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

A Null pointer dereference problem was detected in idafree in lib/idr.c within the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a lack of proper checks at function returns...

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 5.15

A use-after-free vulnerability in the Linux kernel’s netfilter:nftables component can be exploited to achieve local privilege escalation. When an error occurs during the creation of a nftables rule, deactivating immediate expressions in nftimmediatedeactivate can cause the chain to be unbound,...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drivers/md/md-bitmap: Check the return value of mdbitmapgetcounter. Check the return value of mdbitmapgetcounter in case it returns a NULL pointer, which would lead to a null pointer dereferencing. v2: Updated the check to includ...

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

In the Linux kernel, the following vulnerability has been resolved: Wifi: ath9k: Fixed a potential stack-out-of-bounds write in ath9kwmirspcallback. This bug involves writing to wmi-cmdrspbuf, a stack-allocated buffer that may become invalid when a timeout occurs. Set wmi-lastseqid to 0 when a...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A vulnerability, classified as critical, has been discovered in the Linux kernel. The issue affects the tsttimer function in the drivers/atm/idt77252.c file of the IPsec component. This vulnerability allows for manipulation leading to memory corruption after the function is freed. It is recommend...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ibprctlset function updates the Thread Information Flags TIFs for the task and updates the SPECCTRL MSR in the function speculationctrlupdate, but the IBPB is only issued at the next schedul...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net, neigh: Fixed the null-ptr-deref in neightableclear. When the IPv6 module is initialized, an error occurs in the middle. This results in a kernel panic with the following error message: KASAN: Nullptrderef in range...

Astra Linux – Vulnerability in Linux 5.15

A NULL pointer dereference flaw was discovered in the Linux kernel’s drivers/gpu/drm/msm/msmgemsubmit.c code, specifically in the submitlookupcmds function. This flaw occurs because there is no check on the return value of kmalloc. This issue allows a local user to crash the system...

Astra Linux – Vulnerability in Linux

A vulnerability was discovered in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory...

Astra Linux – Vulnerability in Linux, Linux 5.10

A heap-based buffer overflow flaw was discovered in the way the legacyparseparam function in the Linux kernel’s Filesystem Context functionality verifies the length of the supplied parameters. A non-privileged user if non-privileged user namespaces are enabled, otherwise requiring CAPSYSADMIN...