Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/msm/a6xx: Allocate sufficient space for GMU registers In commit 142639a52a01 “drm/msm/a6xx: fix crashstate capture for A650”, we changed a6xxgetgmuregisters to read 3 sets of registers. Unfortunately, we did not change the...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mm: krealloc: Fixed an MTE false alarm in dokrealloc. This patch addresses an issue introduced by commit 1a83a716ec233, which caused MTE Memory Tagging Extension to falsely report a slab-out-of-bounds error. The problem occurs wh...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: crypto: arm64/poly1305 – fixed a read out-of-bound issue. A KASAN error was reported during fuzzing: BUG: KASAN: slab-out-of-bounds in neonpoly1305blocks.constprop.0+0x1b4/0x250 poly1305neon Read of size 4 at addr...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: usb: mtu3: Fix for the listhead check warning caused by uninitialization of listhead. This issue is due to the lack of initialization of listhead. BUG: KASAN: Use-after-free in listdelentryvalid+0x34/0xe4. Call trace:...

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

In the Linux kernel, the following vulnerability has been resolved: x86/alternatives: Disabling KASAN during applyalternatives Fei reported that KASAN is triggered during applyalternatives on a 5-level paging machine: BUG: KASAN: Out-of-bounds access in rcuiswatching A read of size 4 at address...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: zloop: Fixed the KASAN use-after-free of the tagset. When a zloop device is removed, the KASAN-enabled kernel reports a “BUG KASAN use-after-free” in the blkmqfreetagset function. This bug occurs because zloopctlRemove calls...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ASoC: lpass: Fix for KASAN use-after-free out of bounds. When we run syzkaller, we encounter an Out of Bounds error. “KASAN: slab-out-of-bounds Read in regcacheflatread.” The issue’s backtrace is as follows: BUG: KASAN:...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: clk: zynqmp: Fixed a stack-out-of-bounds issue in strncpy. “BUG: KASAN: Stack-out-of-bounds in strncpy+0x30/0x68” The Linux-ATF interface uses 16 bytes of SMC payload. If the clock name is longer than 15 bytes, the string...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ftrace: Fixed invalid address access in lookuprec when the index is 0. KASAN reported the following issue: BUG: KASAN: use-after-free in lookuprec A read of size 8 at the address ffff000199270ff0 was performed by the task modprob...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: BPF: Fixed potential improper dereferencing of pointers in bpfsysbpf. The bpfsysbpf helper function allows an eBPF program to load another eBPF program from within the kernel. In this case, the argument union bpfattr pointer...

Exploit for CVE-2026-40369

CVE-2026-40369: Arbitrary Kernel Address Increment via NtQuery...

CVE-2026-43449

In the Linux kernel, the following vulnerability has been resolved: nvme-pci: Fix slab-out-of-bounds in nvmedbbufset dev-onlinequeues is a count incremented in nvmeinitqueue. Thus, valid indices are 0 through dev-onlinequeues − 1. This patch fixes the loop condition to ensure the index stays with...

CVE-2026-43197

CVE-2026-43197 concerns a Linux kernel netconsole vulnerability where messages from the console subsystem could be read out-of-bounds due to missing null-termination. The root cause is a netconsole write path that could access memory beyond the allocated buffer, observable as a slab-out-of-bounds...

CVE-2026-31686

A flaw was found in the Linux kernel. A double-free vulnerability exists in the Kernel Address Sanitizer KASAN component, specifically within the kasanfreepxd function. This issue arises because the function incorrectly assumes that page tables are always page-aligned, which is not consistent...

kernel: net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

kernel: net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

CVE-2026-31513 Bluetooth: L2CAP: Fix stack-out-of-bounds read in l2cap_ecred_conn_req

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix stack-out-of-bounds read in l2capecredconnreq Syzbot reported a KASAN stack-out-of-bounds read in l2capbuildcmd that is triggered by a malformed Enhanced Credit Based Connection Request. The vulnerability...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013358)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013358 advisory. In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix loop termination condition in gssfreeintokenpages The intoken-pages array is not NULL...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013151)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013151 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf: Use VMMAP instead of VMALLOC for ringbuf After commit 2fd3fb0be1d1 kasan, vmalloc: unpoison...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-010941)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010941 advisory. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Fix UAF on scoconnfree BUG: KASAN: slab-use-after-free in scoconnfree...