0.0
NA
CVE-2022-48770
Apache Linux Kernel NULL Pointer Dereference Vulnerability
Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack() task_pt_regs() can return NULL on powerpc for kernel threads. This is then used in __bpf_get_stack() to check for user mode, resulting in a kernel oops. Guard against this by checking return value of task_pt_regs() before trying to obtain the call chain.

INFO

Published Date :

June 20, 2024, 12:15 p.m.

Last Modified :

June 20, 2024, 12:43 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Affected Products

The following products are affected by CVE-2022-48770 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-48770.

URL Resource
https://git.kernel.org/stable/c/0bcd484587b3b3092e448d27dc369e347e1810c3
https://git.kernel.org/stable/c/b82ef4985a6d05e80f604624332430351df7b79a
https://git.kernel.org/stable/c/b992f01e66150fc5e90be4a96f5eb8e634c8249e
https://git.kernel.org/stable/c/ff6bdc205fd0a83bd365405d4e31fb5905826996

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-48770 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-48770 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 20, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack() task_pt_regs() can return NULL on powerpc for kernel threads. This is then used in __bpf_get_stack() to check for user mode, resulting in a kernel oops. Guard against this by checking return value of task_pt_regs() before trying to obtain the call chain.
    Added Reference kernel.org https://git.kernel.org/stable/c/ff6bdc205fd0a83bd365405d4e31fb5905826996 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/0bcd484587b3b3092e448d27dc369e347e1810c3 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/b82ef4985a6d05e80f604624332430351df7b79a [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/b992f01e66150fc5e90be4a96f5eb8e634c8249e [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-48770 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-48770 weaknesses.

NONE - Vulnerability Scoring System
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