CVE-2024-38574libbpf: Prevent null-pointer dereference when prog to load has no BTF
- 5.5MediumCVSS base score
- 0.22%Exploitation in 30 daysEPSS · top 87% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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().
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 23 months later
· 23 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected df7c3f7d3a3ddab31ca8cfa9b86a8729ec43fd2e – < ef80b59acfa4dee4b5eaccb15572b69248831104
- affected df7c3f7d3a3ddab31ca8cfa9b86a8729ec43fd2e – < 1fd91360a75833b7110af9834ae26c977e1273e0
- affected df7c3f7d3a3ddab31ca8cfa9b86a8729ec43fd2e – < 9bf48fa19a4b1d186e08b20bf7e5de26a15644fb
- affected 6.8
- unaffected < 6.8
- unaffected 6.8.12 – ≤ 6.8.*
- unaffected 6.9.3 – ≤ 6.9.*
- unaffected 6.10 – ≤ *
References
References3
- https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fb (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-37437 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-38574)Record last updated .