PatchTheCVECVE-2022-2905: An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_ta
CVE-2022-2905 is a medium-severity flaw (CVSS 5.5) affecting linux kernel, enterprise linux, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.
Why this priority
- Public exploit reference
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.5 (Medium) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 70%) |
| CISA exploited list | No |
| Weakness | CWE-125 |
| Published | 2022-09-09 |
| Last modified | 2026-11-02 |
Last updated 2026-11-02 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2022-2905?
linux kernel: upgrade to 6.0; enterprise linux: mitigate or apply the listed mitigation; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2022-2905 being exploited?
CVE-2022-2905 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2022-2905 affect?
CVE-2022-2905 affects linux kernel, enterprise linux, debian linux. Severity is medium (CVSS 5.5). An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to d
How urgent is CVE-2022-2905?
Priority 37/100. Public exploit reference; On your watchlist
Software pages
Linux kernel vulnerabilities · Debian vulnerabilities
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