kernel: bpf: Fix potential array overflow in bpf_trampoline_get_progs()

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential array overflow in bpftrampolinegetprogs The cnt value in the 'cnt = BPFMAXTRAMPPROGS' check does not include BPFTRAMPMODIFYRETURN bpf programs, so the number of the attached BPFTRAMPMODIFYRETURN bpf programs in...

kernel: bpf: prevent leak of lsm program after failed attach

A reference count leak was found in the BPF subsystem. When attaching a BPF LSM program to a cgroup fails validation, the program's reference count is not decremented, causing the BPF program to remain loaded indefinitely...

PT-2023-3564 · Linux +9 · Linux Kernel +9

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions =5.4 Description: The issue is related to incorrect verifier pruning in BPF in the Linux Kernel, which leads to unsafe code paths being incorrectly marked as safe. This results in arbitrary read/write in kernel memory,...

SUSE CVE-2017-9150

The docheck function in kernel/bpf/verifier.c in the Linux kernel before 4.11.1 does not make the allowptrleaks value available for restricting the output of the printbpfinsn function, which allows local users to obtain sensitive address information via crafted bpf system calls...

SUSE CVE-2021-3489

The eBPF RINGBUF bpfringbufreserve function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee "bp...

SUSE CVE-2021-4001

A race condition was found in the Linux kernel's ebpf verifier between bpfmapupdateelem and bpfmapfreeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege capsysadmin or capbpf can modify the frozen mapped address space. This flaw affects kernel...

SUSE CVE-2021-4135

A memory leak vulnerability was found in the Linux kernel's eBPF for the Simulated networking device driver in the way user uses BPF for the device such that function nsimmapallocelem being called. A local user could use this flaw to get unauthorized access to some data...

SUSE CVE-2021-4159

A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating som...

SUSE CVE-2021-29154

BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpfjitcomp.c and arch/x86/net/bpfjitcomp32.c...

SUSE CVE-2021-29155

An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences ...

SUSE CVE-2021-38300

arch/mips/net/bpfjit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when transforming unprivileged cBPF programs, allowing execution of arbitrary code within the kernel context. This occurs because conditional branches can exceed the 128 KB limit of the MIPS architectur...

SUSE CVE-2022-3533

A vulnerability was found in Linux Kernel. It has been rated as problematic. This issue affects the function parseusdtarg of the file tools/lib/bpf/usdt.c of the component BPF. The manipulation of the argument regname leads to memory leak. It is recommended to apply a patch to fix this issue. The...

SUSE CVE-2022-3606

A vulnerability was found in Linux Kernel. It has been classified as problematic. This affects the function findprogbysecinsn of the file tools/lib/bpf/libbpf.c of the component BPF. The manipulation leads to null pointer dereference. It is recommended to apply a patch to fix this issue. The...

SUSE CVE-2022-3649

A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is the function nilfsnewinode of the file fs/nilfs2/inode.c of the component BPF. The manipulation leads to use after free. It is possible to launch the attack remotely. It is recommended to apply a patch t...

PT-2023-35127 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.15.92 Description: The issue is related to the bpf in the Linux Kernel, specifically with skipping tasks with pid=1 in send signal common. The actual impact and attack plausibility have not yet been proven...

Linux kernel 安全漏洞

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel that stems from a flaw in the BPF subsystem that can also cause deadlocks...

The vulnerability of the nilfs_attach_log_writer function (fs/nilfs2/segment.c) in the Linux kernel’s BPF component allows a attacker to cause a service failure.

The vulnerability of the nilfsattachlogwriter function located in segment.c of fs/nilfs2 in the Linux kernel’s BPF component is related to a memory leak. Exploiting this vulnerability could allow an attacker to cause a service failure...

PT-2025-49748

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.5.0-03980-gd11ae1b16b0a 247 Description The Linux kernel contains a flaw in the bpf sk storage component related to an invalid wait context lock dependency report. Specifically, the issue arises from attempting...

PT-2022-36552 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v4.14.300 Description: The issue is related to an alignment problem in the bpf prog test run skb function. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linux Kernel...

The vulnerability of the eBPF subsystem in the Linux operating system allows a hacker to trigger a service failure or increase their privileges.

The vulnerability of the eBPF subsystem in the Linux operating system is related to reading data beyond the buffer boundaries in memory. Exploiting this vulnerability can allow an attacker to cause a service failure or increase their privileges...