kernel: bpf: Guard stack limits against 32bit overflow

In the Linux kernel, the following vulnerability has been resolved: bpf: Guard stack limits against 32bit overflow The Linux kernel CVE team has assigned CVE-2023-52676 to this issue. Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024051749-CVE-2023-52676-e224@gregkh/T...

kernel: bpf: Protect against int overflow for stack access size

A flaw was found in the Linux kernel. An integer overflow vulnerability exists in the access size of a stack, such that the size of the access stack can appear negative as a result of overflowing its signed int representation. This issue can result in denial of service...

CVE-2024-50253 bpf: Check the validity of nr_words in bpf_iter_bits_new()

In the Linux kernel, the following vulnerability has been resolved: bpf: Check the validity of nrwords in bpfiterbitsnew Check the validity of nrwords in bpfiterbitsnew. Without this check, when multiplication overflow occurs for nrbits e.g., when nrwords = 0x0400-0001, nrbits becomes 64, stack...

bpf: Fix helper writes to read-only maps

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bpf: Zero former ARG_PTR_TO_{LONGINT} args in case of error

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bpf: Fix use-after-free in bpf_uprobe_multi_link_attach()

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Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a faulty dynamic allocation bit release in the bpfiterbitsdestroy function...

UBUNTU-CVE-2024-50203

In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix address emission with tag-based KASAN enabled When BPFTRAMPFCALLORIG is enabled, the address of a bpftrampimage struct on the stack is passed during the size calculation pass and an address on the heap is passed...

SUSE CVE-2024-50161

In the Linux kernel, the following vulnerability has been resolved: bpf: Check the remaining infocnt before repeating btf fields When trying to repeat the btf fields for array of nested struct, it doesn't check the remaining infocnt. The following splat will be reported when the value of ret nele...

SUSE CVE-2024-50165

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve param-string when parsing mount options In bpfparseparam, keep the value of param-string intact so it can be freed later. Otherwise, the kmalloc area pointed to by param-string will be leaked as shown below:...

AZL-53444 CVE-2024-50163 affecting package kernel for versions less than 6.6.64.2-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Make sure internal and UAPI bpfredirect flags don't overlap The bpfredirectinfo is shared between the SKB and XDP redirect paths, and the two paths use the same numeric flag values in the ri-flags field specifically,...

UBUNTU-CVE-2024-50161

In the Linux kernel, the following vulnerability has been resolved: bpf: Check the remaining infocnt before repeating btf fields When trying to repeat the btf fields for array of nested struct, it doesn't check the remaining infocnt. The following splat will be reported when the value of ret nele...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from the bpf component internally overlapping with the UAPI bpfredirect flag when processing bpfredirectinfo...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from allowing the BPF program to write read-only maps when handling the MEMUNINIT flag...

CVE-2023-52920

In the Linux kernel, the following vulnerability has been resolved: bpf: support non-r10 register spill/fill to/from stack in precision tracking Use instruction jump history to record instructions that performed register spill/fill to/from stack, regardless if this was done through read-only r10...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a failure of the netfilter: bpf module to properly hold a network namespace reference in the...

PT-2025-3333

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.74 Description A vulnerability in the Linux kernel related to BPF links has been fixed. The issue was with the BPF link's program, which could be freed before the BPF link itself, leading to a use-after-free...

The vulnerability of the BPF_CALL_1() function in the Linux operating system’s kernel component allows a hacker to trigger a service failure.

The vulnerability of the BPFCALL1 function in the kernel/bpf/helpers.c module of the Linux BPF component is related to incorrect serialization. Exploiting this vulnerability could allow an attacker to cause a service failure...

SUSE CVE-2024-49888

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a sdiv overflow issue Zac Ecob reported a problem where a bpf program may cause kernel crash due to the following error: Oops: divide error: 0000 1 PREEMPT SMP KASAN PTI The failure is due to the below signed divide:...

UBUNTU-CVE-2024-50063

In the Linux kernel, the following vulnerability has been resolved: bpf: Prevent tail call between progs attached to different hooks bpf progs can be attached to kernel functions, and the attached functions can take different parameters or return different return values. If prog attached to one...