CVE-2024-38574

In the Linux kernel, the following vulnerability has been resolved: libbpf: Prevent null-pointer dereference when prog to load has no BTF In bpf_objec_load_prog(), there's no guarantee that obj->btf is non-NULL when passing it to btf__fd(), and this function does not perform any check before dereferencing its argument (as bpf_object__btf_fd() used to do). As a consequence, we get segmentation fault errors in bpftool (for example) when trying to load programs that come without BTF information. v2: Keep btf__fd() in the fix instead of reverting to bpf_object__btf_fd().

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0	Patch
https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fb	Patch
https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104	Patch
https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0	Patch
https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fb	Patch
https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2024-06-19 14:15

Updated : 2025-01-31 15:18

NVD link : CVE-2024-38574

Mitre link : CVE-2024-38574

CVE.ORG link : CVE-2024-38574

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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