bpf: Preserve pointer state for commuted arithmetic

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74720
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-22 16:16:46 UTC
Updated2026-08-22 16:16:46 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: bpf: Preserve pointer state for commuted arithmetic When scalar += pointer is handled in adjust_ptr_min_max_vals(), the destination register inherits the pointer state from the source pointer. Copying only selected fields is fragile because pointer provenance is tracked by several bpf_reg_state fields. Use the caller's temporary offset register to preserve the scalar operand while replacing the destination with the full pointer state. This preserves the frame number for PTR_TO_STACK registers and keeps parent identity fields consistent.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 86b203aadc2930e0a4f9c6277b5b80ff3664c472 git Not specified
CNA Linux Linux affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 8109c25e0c41f5f19a1c2380bb49c991a877494e git Not specified
CNA Linux Linux affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 d1959028190a7649b926f5867a58de5fe221b23c git Not specified
CNA Linux Linux affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 8cb23101a3fcc7432b451ea3d0f14a90711f4acf git Not specified
CNA Linux Linux affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 29c239f8dbec5ab33a61796724d189bddee6cd4b git Not specified
CNA Linux Linux affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 db6382ed3361bdd8129572a3423956cba1dae829 git Not specified
CNA Linux Linux affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 eaffa1495e4fe6330aeff9f323ea3d48b01f118a git Not specified
CNA Linux Linux affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 a4c6f804b44c5c790269b25e0e61cf4e9f117c86 git Not specified
CNA Linux Linux affected 4.16 Not specified
CNA Linux Linux unaffected 4.16 semver Not specified
CNA Linux Linux unaffected 5.10.265 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.216 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.183 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.152 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.104 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.45 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.9 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/d1959028190a7649b926f5867a58de5fe221b23c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8cb23101a3fcc7432b451ea3d0f14a90711f4acf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/db6382ed3361bdd8129572a3423956cba1dae829 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8109c25e0c41f5f19a1c2380bb49c991a877494e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a4c6f804b44c5c790269b25e0e61cf4e9f117c86 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/eaffa1495e4fe6330aeff9f323ea3d48b01f118a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/29c239f8dbec5ab33a61796724d189bddee6cd4b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/86b203aadc2930e0a4f9c6277b5b80ff3664c472 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report