CVE-2022-49875
- Source
- https://cve.org/CVERecord?id=CVE-2022-49875
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49875.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49875
- Downstream
- Published
- 2025-05-01T14:10:24.427Z
- Modified
- 2026-05-15T11:54:23.817844506Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE
When using bpftool to pin {PROG, MAP, LINK} without FILE, segmentation fault will occur. The reson is that the lack of FILE will cause strlen to trigger NULL pointer dereference. The corresponding stacktrace is shown below:
dopin dopinany dopinfd mountbpffsforpin strlen(name) <- NULL pointer dereference
Fix it by adding validation to the common process.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49875.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/34de8e6e0e1f66e431abf4123934a2581cb5f133
- https://git.kernel.org/stable/c/6dcdd1b68b7f9333d48d48fc77b75e7f235f6a4a
- https://git.kernel.org/stable/c/8c80b2fca4112d724dde477aed13f7b0510a2792
- https://git.kernel.org/stable/c/da5161ba94c5e9182c301dd4f09c94f715c068bd
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49875.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49875
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git