PT-2026-72300

In the Linux kernel, the following vulnerability has been resolved: bpf: Reset register bounds before narrowing retval range in check mem access When the BPF verifier processes a context load of an LSM hook return value, it calls mark reg s32 range to narrow the register to the hook's valid range...

CVE-2026-68295

A flaw was found in the Linux kernel. The LoongArch Just-In-Time JIT compiler for the Berkeley Packet Filter BPF subsystem incorrectly sign-extends the results of signed 32-bit division and modulo operations. This behavior causes the upper bits of BPF registers to be set, which differs from the...

CVE-2026-64353

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF verifier. This vulnerability occurs because the BPF verifier incorrectly handles dynamic inner array lookups in ARRAYOFMAPS. When an inner map template is replaced by a concrete inner array with a different maximum entry size, the...

CVE-2026-64353

In the Linux kernel, the following vulnerability has been resolved: bpf: Keep dynamic inner array lookups nullable An ARRAYOFMAPS can use an array created with BPFFINNERMAP as its inner map template. A concrete inner array with a different maxentries value can then replace the template. After a...

CVE-2026-53081

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF verifier. This vulnerability occurs due to inconsistent base ID mapping when the regsafe function compares scalar registers with BPFADDCONST values. This inconsistency allows the BPF verifier to incorrectly succeed in state pruning...

CVE-2026-53090

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF verifier. When ldabs,ind instructions are used in BPF subprograms, the verifier fails to correctly simulate the abnormal exit path if packet data loading fails. This oversight could lead to unexpected behavior or bypass of security...

AZL-90374 CVE-2026-53090 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix ldabs,ind failure path analysis in subprogs Usage of ldabs,ind instructions got extended into subprogs some time ago via commit 09b28d76eac4 "bpf: Add abnormal return checks.". These are only allowed in subprograms when...

CVE-2026-53090

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix ldabs,ind failure path analysis in subprogs Usage of ldabs,ind instructions got extended into subprogs some time ago via commit 09b28d76eac4 "bpf: Add abnormal return checks.". These are only allowed in subprograms when...

CVE-2026-53090

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix ldabs,ind failure path analysis in subprogs Usage of ldabs,ind instructions got extended into subprogs some time ago via commit 09b28d76eac4 "bpf: Add abnormal return checks.". These are only allowed in subprograms when...

CVE-2026-53081

In the Linux kernel, the following vulnerability has been resolved: bpf: Enforce regsafe base id consistency for BPFADDCONST scalars When regsafe compares two scalar registers that both carry BPFADDCONST, checkscalarids maps their full compound id aka base | BPFADDCONST flag as one idmap entry...

CVE-2026-53090

The CVE-2026-53090 entry describes a Linux kernel BPF verifier flaw: when using ld_abs/ld_ind in subprogs, the verifier failed to simulate abnormal exits if packet loads failed. This is tied to the code path for bpf_gen_ld_abs() and affects subprograms that are BTF-annotated with scalar return ty...

Astra Linux – Vulnerability in Linux

The bpf verifier in the Linux kernel failed to properly handle truncation of the mod32 destination register when the source register was known to be 0. A local attacker who had the ability to load bpf programs could exploit this vulnerability by performing out-of-bounds reads in kernel memory,...

Linux Distros Unpatched Vulnerability : CVE-2026-45903

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Fix memory access flags in helper prototypes After commit 37cce22dbd51 bpf: verifier: Refactor helper access type tracking, the verifier started relying on...

SUSE CVE-2026-45903

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix memory access flags in helper prototypes After commit 37cce22dbd51 "bpf: verifier: Refactor helper access type tracking", the verifier started relying on the access type flags in helper function prototypes to perform...

CVE-2026-45903

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF verifier. This vulnerability occurs because several BPF helper functions lack proper memory access flags, such as MEMRDONLY or MEMWRITE. Consequently, the verifier may incorrectly assume that buffer contents remain unchanged across...

CVE-2026-45933

A flaw was found in the Linux kernel's BPF Berkeley Packet Filter verifier. The synclinkedregs function fails to preserve the register ID during bounds propagation, which can lead to incorrect register state. This issue may allow a local attacker to trigger a 'division by zero' error, resulting i...

CVE-2026-45903

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix memory access flags in helper prototypes After commit 37cce22dbd51 "bpf: verifier: Refactor helper access type tracking", the verifier started relying on the access type flags in helper function prototypes to perform...

CVE-2026-45903 bpf: Fix memory access flags in helper prototypes

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix memory access flags in helper prototypes After commit 37cce22dbd51 "bpf: verifier: Refactor helper access type tracking", the verifier started relying on the access type flags in helper function prototypes to perform...

CVE-2026-45839

In the Linux kernel, the following vulnerability has been resolved: bpf: reject negative CO-RE accessor indices in bpfcoreparsespec CO-RE accessor strings are colon-separated indices that describe a path from a root BTF type to a target field, e.g. "0:1:2" walks through nested struct members...

Astra Linux – Vulnerability found in Linux 5.10, 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 ...