The vulnerability of the bpf_jit_blind_insn() function in the kernel/bpf/core.c file, which is part of the BPF interpreter support for Linux kernel, allows a hacker to trigger a service failure.

The vulnerability of the bpfjitblindinsn function in the kernel/bpf/core.c file, which is part of the BPF interpreter support for Linux’s operating system, relates to the execution of operations outside of the buffer boundaries. Exploiting this vulnerability could allow an attacker to trigger a...

CVE-2026-74720

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF component. When a scalar value is added to a pointer during certain arithmetic operations, the system fails to fully preserve the pointer's state. This inconsistency in how the pointer's origin and properties are tracked can lead t...

CVE-2026-74590

A flaw was found in the Linux kernel's fsverity subsystem. A local attacker could exploit a race condition in the bpfgetfsveritydigest function by concurrently modifying its digestsize argument. This could lead to a system crash, resulting in a denial of service...

CVE-2026-74589

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF sockmap feature. A use-after-free vulnerability exists in the skredir mechanism within the tcpbpfsendmsgredir function. This occurs when a socket reference is prematurely released while another thread still holds a raw pointer to i...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: bpf, sockmap: Fixed issues where data was not being charged when msg-sg.size contained more data. In tcpbpfsendverdict: If msg-sg.size contains more data after tcpbpfsendmsgredir: c tcpbpfsendverdict tosend = msg-sg.size...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: bpf, sockmap: Fixed a memory leak in skpsockqueuemsg. If tcpbpfsendmsg is running during a cleanup operation, we might enqueue data onto the ingress msg queue while trying to free it. sk1 redirected to sk2 -------------------...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: sock: The protection check for psock vs. ULP needs to be reimplemented. Commit 8a59f9d1e3d4 “sock: Introduce sk-skprot-psockupdateskprot” has moved the inetcskhasulpsk check from skpsockinit to the new tcpbpfupdateproto function....

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Fixed pointer-leak due to insufficient speculative store bypass mitigation To mitigate Spectre v4, the patch 2039f26f3aca “bpf: Fixed leakage due to insufficient speculative store bypass mitigation” includes instructions...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Input: raydiumtsi2c – fixed a memory leak in raydiumi2csend A kmemleak occurs when testing raydiumi2cts using the bpf mock device: Unreferenced object 0xffff88812d3675a0 size 8: Comm “python3”, PID 349, Jiffies 4294741067 Age...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: In the bpf and arm64 implementations, the value of prog-jitedlen was cleared along with prog-jited. The syzbot reported an attempt to perform an illegal copytouser operation from the bpfproggetinfobyfd function 1. There has been ...

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

In the Linux kernel, the following vulnerabilities have been resolved: perf: Fixed the race between perfeventoverflow and perfremovefromcontext. Ensure that perfeventoverflow runs with IRQs disabled for all possible call chains. Specifically, software events may end up running it with preemption...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf: A potential array overflow has been fixed in bpftrampolinegetprogs. The cnt value in the cnt = BPFMAXTRAMPPROGS check does not include BPFTRAMPMODIFYRETURN bpf programs. As a result, the number of BPFTRAMPMODIFYRETURN bpf...

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

In the Linux kernel, the following vulnerability has been resolved: BPF: Detecting IP == ksym.end as part of the BPF program Now, since bpfthrow is the first call instruction with noreturn semantics within the verifier, this also leads to the elimination of dead code in unprecedented ways. For...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Check for any of tcpbpfprots when cloning a listener. A listening socket linked to a sockmap has its skprot overridden. It points to one of the struct proto variants in tcpbpfprots. This variant depends on the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

A out-of-bounds memory read flaw was discovered in the Linux kernel’s BPF subsystem, related to how a user calls the bpftailcall function with a key that is larger than the maxentries of the map. This flaw allows a local user to gain unauthorized access to data...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: LSM: General protection fault in legacyparseparam The usual LSM hook mechanism of “bailing on failure” doesn’t work in cases where a security module returns an error code indicating that it doesn’t recognize an input. In this...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: BPF: Fixed the re-attachment branch in bpftracingprogattach. The following scenario can cause a crash due to a missing attachbtf: 1 Load the rawtp program. 2 Load the fentry program with rawtp as targetfd. 3 Create a tracing...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf: Skip invalid kfunc call in backtrackinsn The verifier skips invalid kfunc calls in checkkfunccall. Such calls would be caught by fixupkfunccall if they aren’t eliminated through dead code elimination. However, this can lead ...

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

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Address the issue reported by KCSAN regarding bpflrulist. KCSAN reported a data-race when accessing node-ref. Although node-ref doesn’t need to be accurate, this opportunity can be used to use a more common READONCE and...

Astra Linux – Vulnerability in libbpf

The vulnerability in the src/libbpf.c component of the BPF loader library in Libbpf is related to pointer dereferencing errors. Exploiting this vulnerability allows an attacker to cause a service failure...