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

In the Linux kernel, the following vulnerability has been resolved: net: prevented mss overflow in skbsegment Once again, syzbot is able to cause the kernel to crash in skbSegment. “GSOBYFRAGS” is a forbidden value, but unfortunately, the following calculation in skbSegment can easily result in...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

There is a null-pointer-dereference flaw found in f2fswriteendio in fs/f2fs/data.c in the Linux kernel. This flaw allows a local privileged user to cause a denial of service problem...

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: dcb: The correct policy must be chosen to parse DCBATTRBCN. The function dcbnlbcnsetcfg uses an incorrect policy to parse tbDCBATTRBCN. This issue was introduced in commit 859ee3c43812 “DCB: Add support for DCB BCN”. Please...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fixed a use-after-free bug in brcmfnetdevstartxmit ret = brcmfprototxqueuedatadrvr, ifp-ifidx, skb; may be scheduled, and then completed before the line ndev-stats.txbytes += skb-len; 46.912801...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: a potential memory leak has been fixed in mlx5einitreprx. The memory pointed to by the priv-rxres pointer is not freed during the error-prone execution of mlx5einitreprx, which can lead to a memory leak. This issue has...

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

In the Linux kernel, the following vulnerability has been resolved: rvdso: In the vdsojointimens function, a NULL reference was corrected when using vfork. The testing results are as follows in the kernel log: 6.838454 Unable to handle kernel access to user memory without uaccess routines at...

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: e1000: Moved cancelworksync to avoid deadlock. Previously, e1000down called cancelworksync for the e1000 reset task via e1000downandstop, which caused a RTNL condition. According to user reports and syzbot, a deadlock may occur i...

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

In the Linux kernel, the following vulnerabilities have been resolved: nvmem: zynqmpnvmem: Fixed the buffer size in DMA and memcpy. The buffer size used in DMA allocation and memcpy is incorrect. This can lead to undersized DMA buffer accesses and potential memory corruption. Use the correct buff...

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...