CVE-2026-74720 (GCVE-0-2026-74720)
Vulnerability from cvelistv5
Published
2026-08-22 15:33
Modified
2026-10-16 19:16
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In 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.
References
Impacted products
Vendor Product Version
Linux Linux Version: f4d7e40a5b7157e1329c3c5b10f60d8289fc2941
Version: f4d7e40a5b7157e1329c3c5b10f60d8289fc2941
Version: f4d7e40a5b7157e1329c3c5b10f60d8289fc2941
Version: f4d7e40a5b7157e1329c3c5b10f60d8289fc2941
Version: f4d7e40a5b7157e1329c3c5b10f60d8289fc2941
Version: f4d7e40a5b7157e1329c3c5b10f60d8289fc2941
Version: f4d7e40a5b7157e1329c3c5b10f60d8289fc2941
Version: f4d7e40a5b7157e1329c3c5b10f60d8289fc2941
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}


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