Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: nbd: Fixed NULL pointer in flushworkqueue Open /dev/nbdX first; the configrefs will be 1, and the pointers in nbddevice remain null. Disconnect /dev/nbdX, then reference a NULL recvworkq. The protection provided by configrefs ...

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

Transmitted requests in Xen’s virtual network protocol can consist of multiple parts. Although none of them are actually useful, except for the initial part, any of these parts can be of zero length, meaning they carry no data at all. In addition to the certain initial portion of the data to be...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: cpufreq: intelpstate: A crash occurred during the disabling of turbo mode. When the system is booted with the kernel command line arguments “nosmt” or “maxcpus” to limit the number of CPUs, disabling turbo mode by executing: echo...

Astra Linux – Vulnerability in Linux 5.10, Linux

A flaw was discovered in the Linux kernel’s Layer 2 Tunneling Protocol L2TP. Clearing the skuserdata can result in a race condition and NULL pointer dereferencing. A local user could exploit this flaw to potentially crash the system, causing a denial of service...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mptcp: fixed the NULL pointer dereferencing issue in the early fallback to fastopen. In the event of an early fallback to TCP, subflowsynrecvsock deletes the subflow context before returning the newly allocated socket to the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: MIPS: KVM: Fix for NULL pointer dereferencing After committing change 45c7e8af4a5e3f0bea4ac209 “MIPS: Remove KVMTE support”, we encountered a NULL pointer dereferencing issue when creating a KVM guest: 146.243409 Starting KVM wit...

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

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Fixed a NULL pointer dereference in ‘niwrite inode’. Syzbot identified the following issue: Unable to handle a NULL pointer dereference at the virtual address 0000000000000016. Memory abort information: ESR =...

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: Issue: unittest – Fix null pointer dereferencing in ofunittestfindnodebyname. Description: When kmalloc fails to allocate memory in kasprintf, variables like name or fullname will be NULL. In this case, strcmp will cause a null...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: can: gsusb: fix time stamp counter initialization If the gsusb device driver is unloaded or unbound before the interface is shut down, the USB stack first calls the struct usbdriver::disconnect, and then the struct...

Astra Linux – Vulnerability in slapi-nis

A flaw was discovered in slapi-nis in versions prior to 0.56.7. A NULL pointer dereferencing during the parsing of the Binding DN could allow an unauthenticated attacker to crash the 389-ds-base directory server. The greatest threat from this vulnerability is to system availability...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: Do not write to msggetinq in the callee. A fix for NULL pointer dereferencing issues. msggetinq is an input field from the caller to the callee. Do not set it in the callee, as the caller may not clear it during struct reuse...

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: media: az6007: Fixed nullptrderef in az6007i2cxfer In az6007i2cxfer, msg is controlled by the user. When msgi.buf is null and msgi.len is zero, previous checks on msgi.buf will still be performed. Malicious data will eventually...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ipv6: ioam: fixed potential NULL dereferencing in ioam6fillTraceData. We need to check in6devget for a possible NULL value, as suggested by Yiming Qian. Also, add skbdstdevrcu instead of skbdstdev, and two missing READONCE calls...

Astra Linux – Vulnerability in Linux 5.10, Linux

A issue was discovered in the Linux kernel through version 5.16-rc6. The function malidpcrtcreset in the file drivers/gpu/drm/arm/malidpcrtc.c lacks a check on the return value of kzalloc. This could lead to a null pointer dereferencing...

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

In the Linux kernel, the following vulnerabilities have been resolved: ALSA: ac97 – Fixed a possible NULL dereference in sndac97mixer. Smatch error: sound/pci/ac97/ac97codec.c:2354; sndac97mixer error: We previously assumed that ‘rac97’ could be null see line 2072. Removed redundant assignments;...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Staging: GPIB – Fixed an Oops after disconnection in agilent USB. If the agilent USB dongle is disconnected, subsequent calls to the driver will cause a NULL dereference Oops, as the businterface is set to NULL upon disconnection...

Astra Linux – Vulnerability in net-snmp

Net-SNMP provides various tools related to the Simple Network Management Protocol. Prior to version 5.9.2, a user with read-only credentials could use an incorrectly formatted OID in a GET-NEXT command to nsVacmAccessTable, resulting in a NULL pointer dereferencing. Version 5.9.2 includes a patch...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: “Revert ‘drm/gem-framebuffer: Use dmabuf from GEM object instance’” This reversion is covered in the commit cce16fcd7446dcff7480cd9d2b6417075ed81065. The dmabuf field in the struct drmgemobject is not stable throughout the lifeti...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: tipc: Check for a null pointer after calling kmemdup kmemdup may return a null pointer, so it is necessary to check for this. Otherwise, the null pointer will be dereferenced later in tipccryptokeyxmit, as can be seen in the trac...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/omap: fixed the NULL but dereferenced coccicheck error. Fixed the following coccicheck warning: ./drivers/gpu/drm/omapdrm/omapoverlay.c:89:22-25: ERROR: rovl is NULL, but it was dereferenced. The correct value should be ovl-i...