CVE-2022-49875 (GCVE-0-2022-49875)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:10 – Updated: 2026-05-11 19:08
VLAI
Title
bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE
Summary
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: do_pin do_pin_any do_pin_fd mount_bpffs_for_pin strlen(name) <- NULL pointer dereference Fix it by adding validation to the common process.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 16:03 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7018 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 75a1e792c335b5c6d7fdb1014da47aeb64c5944f , < 8c80b2fca4112d724dde477aed13f7b0510a2792 (git)
Affected: 75a1e792c335b5c6d7fdb1014da47aeb64c5944f , < 6dcdd1b68b7f9333d48d48fc77b75e7f235f6a4a (git)
Affected: 75a1e792c335b5c6d7fdb1014da47aeb64c5944f , < da5161ba94c5e9182c301dd4f09c94f715c068bd (git)
Affected: 75a1e792c335b5c6d7fdb1014da47aeb64c5944f , < 34de8e6e0e1f66e431abf4123934a2581cb5f133 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.155 , ≤ 5.10.* (semver)
Unaffected: 5.15.79 , ≤ 5.15.* (semver)
Unaffected: 6.0.9 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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      "title": "kernel: bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49875.json",
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}



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