PT-2022-7500 · Linux+2 · Linux Kernel+2
Published
2022-02-11
·
Updated
2024-09-27
·
CVE-2022-48940
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 5.16.0
Description
The issue is related to a crash in the Linux kernel's BPF (Berkeley Packet Filter) component when both
bpf spin lock and bpf timer are present in a BPF map value. The copy map value function does not properly handle these objects, leading to a crash when bpf map update elem is called. This can result in a denial of service.Technical details about exploitation include:
- API Endpoints: Not specified
- Vulnerable Parameters or Variables:
bpf spin lockandbpf timerwhen present in a BPF map value - Function Names:
copy map value,bpf map update elem,pv queued spin lock slowpath
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel
Red Os
Suse