Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: nfs: fixed a panic that occurred when nfs4fflayoutprepareds failed. We have observed the following panics in production: BUG: NULL pointer dereferencing in the kernel, address: 0000000000000065 PGD: 2f485f067; P4D: 2f485f067;...

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 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/msm/hdmi: Added a missing check for allocorderedworkqueue. Added a check on the return value of allocorderedworkqueue, as it may return a NULL pointer, causing a NULL pointer derefrence in hdmihdcp.c and hdmihpd.c. Patchwork:...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed a null pointer dereference in the resolveprogtype function for BPFPROGTYPEEXT. When loading an EXT program without specifying attr-attachprogfd, the prog-aux-dstprog will be null. At this point, calling resolveprogtype...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: iptables: Fixed a potential null-ptr-deref in ip6tablenattableinit. ip6tablenattableinit accesses net-gen-ptrip6tablenatnetops.id, but this function is exposed to user space before the entry is allocated via...

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

In the Linux kernel, the following vulnerability has been resolved: Bonding: Fix for xfrm realdev null pointer dereference We should not set realdev to NULL, because packets may still be in transit, and xfrm might call xdodevoffloadok in parallel. All callbacks assume that realdev is set. Example...

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: ftrace: A regression was fixed related to the module command in stacktracefilter. When executing the following command: echo "write:mod:ext3" /sys/kernel/tracing/stacktracefilter The current mod command causes a null pointer...

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

In the Linux kernel, the following vulnerability has been resolved: pstore/platform: Added a check for kstrdup. Added a check on the return value of kstrdup, and return an error if it fails, in order to avoid NULL pointer dereferencing...

Astra Linux – Vulnerability in gst-plugins-good1.0

GStreamer is a library for constructing graphs of media-handling components. A null pointer dereference vulnerability has been discovered in the gstjpegdecnegotiate function in gstjpegdec.c. This function does not check for a NULL return value from gstvideodecodersetoutputstate. When this occurs,...

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-write credentials could use a malformed OID in a SET request to NET-SNMP-AGENT-MIB::nsLogTable to cause a NULL pointer dereference. Version 5.9.2 includes a patch to address...

Astra Linux – Vulnerability in Linux 5.10

Ubuntu Linux 6.8, 6.17, and 7.0 contain SAUCE patches that may include a NULL pointer dereferencing issue in the handling of AFINET/AFINET6 socket mediation. This bug can be triggered by an unprivileged local user, and it can lead to a kernel oops...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Wifi: iwlwifi: mvm: Avoid NULL pointer dereferencing The functions iwlmvmtxskbsta and iwlmvmtxmpdu check that the mvmvsta pointer is not NULL. This pointer is retrieved using iwlmvmstafrommac80211, which dereferences the...

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

In the Linux kernel, the following vulnerability has been resolved: drm/qxl: Added a check for drmcvtmode. Added a check on the return value of drmcvtmode, and return an error if it fails, in order to avoid NULL pointer dereferencing...

Astra Linux – Vulnerability in Squid

Squid is a caching proxy for the Web that supports HTTP, HTTPS, FTP, and other protocols. Due to a NULL pointer dereference bug, Squid is vulnerable to Denial of Service attacks targeting its Gopher gateway. The Gopher protocol was always available and enabled in Squid prior to Squid 6.0.1...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Added a check for mgmtallocskb in mgmtremotename. Added a check on the return value of mgmtallocskb in mgmtremotename to prevent null pointer dereferencing...

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: ata: patapxa: Fixed a potential NULL pointer dereferencing in pxaataprobe. devmioremap returns NULL upon error. Currently, pxaataprobe does not check for this case, which could lead to a NULL pointer dereferencing. Add a NULL che...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/smc: fixed an issue where a NULL pointer was dereferenced in smcibissgneedsync BUG: NULL pointer dereferencing in the kernel, address: 00000000000002ec PGD 0 P4D 0 Oops: 0000 1 SMP PTI CPU: 28 UID: 0 PID: 343 Comm: kworker/28...

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

In the Linux kernel, the following vulnerability has been resolved: clk: mediatek: clk-mt7629 – Added a check for the return value of mtkallocclkdata. The check is added to avoid dereferencing a NULL pointer...

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...