Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: prevented decltag from being referenced in funcproto Syzkaller was able to exploit the following issue: ------------ cut here --- WARNING: CPU: 0 PID: 3609 at kernel/bpf/btf.c:1946 btftypeidsize+0x2d5/0x9d0...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: powerpc/bpf: Fixed the detection of BPF atomic instructions. The commit 91c960b0056672 “bpf: Rename BPFXADD and prepare to encode other atomic instructions in .imm” changed BPFXADD to BPFATOMIC and added a mechanism to...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: BPF: cpumap: Fixed a memory leak in cpumapupdateelem. Syzkaller reported a memory leak as follows: BUG: Memory leak Unreferenced object 0xff110001198ef748 size 192: Command: "syz-executor.3", PID 17672, Jiffies: 4298118891 Age...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021553)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021553 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf: Call freehtabelem after htabunlockbucket For htab of maps, when the map is removed from the...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021538)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021538 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf: Fix pointer-leak due to insufficient speculative store bypass mitigation To mitigate Spectre...

kernel: bpf: Do not include stack ptr register in precision backtracking bookkeeping

In the Linux kernel, the following vulnerability has been resolved: bpf: Do not include stack ptr register in precision backtracking bookkeeping Yi Lai reported an issue 1 where the following warning appears in kernel dmesg: 60.643604 verifier backtracking bug 60.643635 WARNING: CPU: 10 PID: 2315...

ebpf-cve-analysis

eBPF CVE Analysis !polito-logoresources/images/logopolito...

CVE-2026-43333

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF component. This vulnerability allows a local attacker to cause a kernel null pointer dereference by directly accessing nullable PTRTOBUF pointers without proper null checks. This can lead to a system crash, resulting in a Denial of...

SUSE CVE-2026-43333

In the Linux kernel, the following vulnerability has been resolved: bpf: reject direct access to nullable PTRTOBUF pointers checkmemaccess matches PTRTOBUF via basetype which strips PTRMAYBENULL, allowing direct dereference without a null check. Map iterator ctx-key and ctx-value are PTRTOBUF |...

OESA-2026-2234 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearing struct bpfplt contains a u64 target field. Currently, the BPF JIT allocator requests ...

bpf: Properly mark live registers for indirect jumps

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Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net: clear the dst when changing skb protocol CVE-2025-38192 In the Linux kernel, the following vulnerability has been resolved: rcu/nocb: Fix possible invalid rdp's-nocbcbkthread pointer access CVE-2025-38704 In...

CVE-2026-43416

A flaw was found in the Linux kernel. A local user can cause a denial of service DoS by triggering a NULL pointer dereference within the perf subsystem. This occurs when the memory management structure current-mm is prematurely released before the system attempts to retrieve the user callchain,...

CVE-2026-43321

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF subsystem. This vulnerability arises from the kernel's failure to correctly identify and mark active registers during indirect jump operations within the BPF program execution. An attacker could potentially exploit this to manipula...

CVE-2026-43306

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF crypto component. A local attacker, by running a specially crafted BPF program, could trigger a type mismatch in function pointers when Control Flow Integrity CFI is enabled. This can lead to a kernel internal error, resulting in a...

EUVD-2026-28605

In the Linux kernel, the following vulnerability has been resolved: bpf: Properly mark live registers for indirect jumps For a gotox rX instruction the rX register should be marked as used in the computeinsnliveregs function. Fix this...

CVE-2026-43416

In the Linux kernel, the following vulnerability has been resolved: powerpc, perf: Check that current-mm is alive before getting user callchain It may happen that mm is already released, which leads to kernel panic. This adds the NULL check for current-mm, similarly to commit 20afc60f892d "x86,...

CVE-2026-43321

In the Linux kernel, the following vulnerability has been resolved: bpf: Properly mark live registers for indirect jumps For a gotox rX instruction the rX register should be marked as used in the computeinsnliveregs function. Fix this...

UBUNTU-CVE-2026-43321

In the Linux kernel, the following vulnerability has been resolved: bpf: Properly mark live registers for indirect jumps For a gotox rX instruction the rX register should be marked as used in the computeinsnliveregs function. Fix this...

CVE-2026-43321

In the Linux kernel, the following vulnerability has been resolved: bpf: Properly mark live registers for indirect jumps For a gotox rX instruction the rX register should be marked as used in the computeinsnliveregs function. Fix this...