What is CVE-2022-48770?

CVE-2022-48770 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 5.9 onward and patched in 5.10.96, 5.15.19, 5.16.5 and others. CVE-2022-48770 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-48770?

CVE-2022-48770 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-48770?

Yes, CVE-2022-48770 has been patched. Fixed versions include 5.10.96, 5.15.19, 5.16.5 and others. If you are running Linux kernel 5.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-48770 actively exploited?

CVE-2022-48770 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2022-48770

Medium

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.

Package Linux Kernel

Published 2024-06-20

Last modified 2025-01-06

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-476

CVE-2022-48770 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.9 and later are affected. Fixed in 5.10.96, 5.15.19, 5.16.5, 5.17 and their respective stable series.

Affected from

≥ 5.9

Fixed in

✓ 5.10.96 5.10.x ✓ 5.15.19 5.15.x ✓ 5.16.5 5.16.x ✓ 5.17

References

4 total

Kernel Git
https://git.kernel.org/stable/c/0bcd484587b3b3092e448d27dc369e347e1810c3

Patch
Kernel Git
https://git.kernel.org/stable/c/b82ef4985a6d05e80f604624332430351df7b79a

Patch
Kernel Git
https://git.kernel.org/stable/c/b992f01e66150fc5e90be4a96f5eb8e634c8249e

Patch
Kernel Git
https://git.kernel.org/stable/c/ff6bdc205fd0a83bd365405d4e31fb5905826996

Patch

Details

CVE ID CVE-2022-48770

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-06-20

Modified 2025-01-06

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-48770?

CVE-2022-48770 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 5.9 onward and has been patched in 5.10.96, 5.15.19, 5.16.5 and others. CVE-2022-48770 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-48770?

CVE-2022-48770 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-48770?

Yes. CVE-2022-48770 has been patched. Fixed versions include 5.10.96, 5.15.19, 5.16.5 and others. If you are running Linux kernel 5.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-48770 actively exploited?

No. CVE-2022-48770 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.