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

In the Linux kernel, the following vulnerability has been resolved: “aio”: fixed the issue with mremap after a fork operation involving null-dereferencing. The commit e4a0d3e720e7 “aio: Makes it possible to remap the aio ring” introduced a null-dereference if mremap is called on an old aio mappin...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: soc: amlogic: Fixed a refcount leak in meson-secure-pwrc.c. In mesonsecurepwrcprobe, there is a refcount leak in one fail path...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net: bcmgenet: Use stronger register read/writes to ensure proper ordering. GCC12 seems to be much more efficient in tracking dependencies. It recognizes that relaxed variants are merely normal loads and stores, which is causi...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: The page extent mapping was set after the readfolio operation in relocateonepage. One of the CI runs triggered the following panic: Assertion failed: PagePrivatepage && page-private, in fs/btrfs/subpage.c:229 ----------...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed “use-after-free” issue This involves using l2capchanholdunlesszero after calling l2capgetchanblah to prevent the following issue: Bluetooth: l2capcore.c: static void l2capchandestroystruct krefkref...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: cifs: A memory leak was fixed when using fscache. If the condition “index == nextcached” is encountered, a reference count of the struct page is leaked. This issue is fixed by using readaheadfolio, which handles the reference cou...

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

A use-after-free vulnerability exists in the Linux kernel’s net/sched: schhfsc HFSC qdisc traffic control component, which can be exploited to achieve local privilege escalation. If a class with a link-sharing curve i.e., with the HFSCFSC flag set has a parent without a link-sharing curve, then...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Device property: Fixed the node refcount leak in fwnodegraphgetnextendpoint. The “parent” returned by fwnodegraphgetportparent has its refcount incremented when ‘prev’ is not NULL. This variable needs to be set after using it...

Astra Linux – Vulnerability in Linux, Linux 5.10

A use-after-free vulnerability was discovered in drivers/net/hamradio/6pack.c of Linux, which allows an attacker to crash the Linux kernel by simulating the ax25 device using the 6pack driver from the user space...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: gpio: mockup: Fixed potential resource leakage when registering a chip. If the creation of a software node fails, the locally allocated string array remains unleased. It should be freed during the error handling process...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio: Packed data – fix an unmap leak for the indirect desc table When usedmaapi and premapped are set to true, the dounmap operation is not executed. As a result, the vringunmapextrapacked function is not called by...

Astra Linux – Vulnerability in Linux 5.10, Linux

A vulnerability classified as problematic has been discovered in the Linux kernel. The affected function is j1939sessiondestroy in the file net/can/j1939/transport.c. This manipulation leads to a memory leak. It is recommended that a patch be applied to fix this issue. The identifier of this...

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

A use-after-free vulnerability in the Linux kernel’s netfilter:nftables component can be exploited to achieve local privilege escalation. The nftverdictinit function allows positive values as drop errors within the hook verdict, and thus the nfhookslow function can cause a double-free vulnerabili...

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: Bluetooth: btintel: Fixed a null pointer dereference in btintelreadversion. If hcicmdsyncComplete is triggered and skb is NULL, then hdev-reqskb will also be NULL, which will cause this issue...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: nfc: virtualncidev: Fixed a memory leak in virtualncisend The skb object should be freed in virtualncisend; otherwise, kmemleak will report a memleak. Steps for reproduction simulated in qemu: cd tools/testing/selftests/nci make...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: phy: stm32: fix a refcount leak in stm32usbphycpllenable This error path needs to decrement “usbphyc-npllcons.counter” before returning...

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: Bluetooth: Fixed a memory leak in hcireqsyncComplete In the function hcireqsyncComplete, always free the previous sync request state before assigning a reference to a new one...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/amdgpu: fixed potential memory leaks. In the function amdgpugetxgmihive, when kobjectinitandadd fails, there is a potential memory leak if kobjectput is not called...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: NFSD: prevented underflow in nfssvcdecodewriteargs Smatch reported the issue as follows: fs/nfsd/nfsxdr.c:341 nfssvcDecodeWriteArgs Warning: no lower bound on ‘args-len’ The type of the variable has been changed to unsigned to...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: linux/dim: Fixed a division by zero error in RDMA DIM. This error occurred when prev-cperatio == 0, and the function rdmadimstatscompare was called. CallTrace: Hardware name: H3C R4900 G3/RS33M2C9S, BIOS 2.00.37P21 03/12/2020...