Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: netsched: Fixed a NULL dereference in fifosetlimit. syzbot reported another NULL dereference in fifosetlimit. 1 I can reproduce the issue with the following commands: unshare -n tc qd add dev lo root handle 1:0 tbf limit 20000...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: sctp: A buffer overflow vulnerability exists when skbheaderpointer returns NULL in sctprcvootb. We should always check if the return value of skbheaderpointer is NULL before using it. Otherwise, it may lead to a nullptrderef...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: power: supply: wm97xx: A NULL pointer dereferencing issue has been fixed in powersupplychanged. In probe, requestirq is called before allocating/registering a powersupply handle. If an interrupt is fired between the call to...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: xen-netfront: Fixed NULL pointers after live migration. NAPIs are set up for each network interface to poll data for the kernel. The interface with the source host is destroyed during live migration, and a new interface with t...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Added a check for kmemdup. Since kmemdup may return a NULL pointer, it would be better to add a check on the return value to avoid dereferencing a NULL pointer...

Astra Linux – Vulnerability in Zabbix

When the WebDriver for the Browser object downloads data from an HTTP server, the data pointer is set to NULL and is only allocated during the curlwritecb operation when receiving data. If the server’s response is an empty document, then wd-data in the code below will remain NULL, and attempting ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fbcon: A NULL pointer dereference issue was fixed in fbconputcs. syzbot has identified a NULL pointer dereference bug in fbcon. Here is the simplified C code for the reproduction of the issue: c struct param uint8t type; struct...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: media: cx88: A null-ptr-deref bug was fixed in the bufferprepare function. When the driver calls cx88riscbuffer to prepare the buffer, the function call may fail, resulting in an empty buffer and a null-ptr-deref later in the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: The code checks contexts-nr before accessing contextsarr0. Multiple sysfs command paths dereference contextsarr0 without first verifying that kdamond-contexts-nr == 1. A user can set nrcontexts to 0 via sysfs whil...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: udptunnel: The issue of NULL dereferencing caused by udpsockcreate6 when CONFIGIPV6=n is enabled was fixed. When CONFIGIPV6 is disabled, the udpsockcreate6 function returns 0 success without actually creating a socket. Callers li...

Astra Linux – Vulnerability in freerdp3, freerdp2

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.22.0, there was a NULL pointer dereference vulnerability in rdpwritelogoninfov2. This vulnerability allowed a malicious RDP server to crash the FreeRDP proxy by sending a specially crafted LogonInfoV2 PDU with...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed an issue where an uninitialized pointer was freed during the readalloconename function. The readalloconename function does not initialize the name field of the passed fscryptstr structure if kmalloc fails to allocate...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: comedi: niatmio16d: Fixed invalid cleanup after a failed attach operation. If the driver’s COMEDI “attach” handler function atmio16dattach returns an error, the COMEDI core will call the driver’s “detach” handler function...

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

In the Linux kernel, the following vulnerability has been resolved: scsi: libfc: Fixed potential NULL pointer dereferencing in fclportptpsetup The fclportptpsetup function did not check the return value of fcrportcreate, which may return NULL, leading to a NULL pointer dereferencing issue. This...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: l2cap: fixed a nullptrderef in l2capchantimeout. There is a race condition between l2capchantimeout and l2capchandel. When we use l2capchandel to delete the channel, the chan-conn will be set to null. However, the...

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: wacom: fix when get product name maybe null pointer Due to incorrect dev-product reporting by certain devices, null pointer dereferences occur when dev-product is empty, leading to potential system crashes. This issue was...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: cifs: A NULL pointer dereference issue occurs during UTF16 conversion. There may be a bug where a NULL pointer is passed to cifssfumakenode without any checks. This NULL value is then passed unchecked to cifsstrnduptoutf16, which...

Astra Linux – Vulnerability in Linux 5.10, Linux

A flaw was discovered in the Linux kernel. A NULL pointer dereference may occur when the slip driver is in progress to detach at sltxtimeout in drivers/net/slip/slip.c. This issue could allow an attacker to crash the system or leak internal kernel information...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: enetc: allocating vfstate during PF probes In the previous implementation, vfstate is allocated memory only when VF is enabled. However, netdeviceops::ndosetvfmac may be called before VF is enabled to configure the MAC addre...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: spi: spi-zynq-qspi: Fixed a NULL pointer dereferencing in zynqqspiexecmemop. In zynqqspiexecmemop, kzalloc is directly used in memset, which could lead to a NULL pointer dereferencing if kzalloc fails. This bug was fixed by addin...