CVE-2026-74720
bpf: Preserve pointer state for commuted arithmetic
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 22, 2026 |
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Affected Versions
Linux / Linux
f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < 86b203aadc2930e0a4f9c6277b5b80ff3664c472 f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < 8109c25e0c41f5f19a1c2380bb49c991a877494e f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < d1959028190a7649b926f5867a58de5fe221b23c f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < 8cb23101a3fcc7432b451ea3d0f14a90711f4acf f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < 29c239f8dbec5ab33a61796724d189bddee6cd4b f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < db6382ed3361bdd8129572a3423956cba1dae829 f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < eaffa1495e4fe6330aeff9f323ea3d48b01f118a f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < a4c6f804b44c5c790269b25e0e61cf4e9f117c86
Linux / Linux
4.16
References
git.kernel.org: https://git.kernel.org/stable/c/86b203aadc2930e0a4f9c6277b5b80ff3664c472 git.kernel.org: https://git.kernel.org/stable/c/8109c25e0c41f5f19a1c2380bb49c991a877494e git.kernel.org: https://git.kernel.org/stable/c/d1959028190a7649b926f5867a58de5fe221b23c git.kernel.org: https://git.kernel.org/stable/c/8cb23101a3fcc7432b451ea3d0f14a90711f4acf git.kernel.org: https://git.kernel.org/stable/c/29c239f8dbec5ab33a61796724d189bddee6cd4b git.kernel.org: https://git.kernel.org/stable/c/db6382ed3361bdd8129572a3423956cba1dae829 git.kernel.org: https://git.kernel.org/stable/c/eaffa1495e4fe6330aeff9f323ea3d48b01f118a git.kernel.org: https://git.kernel.org/stable/c/a4c6f804b44c5c790269b25e0e61cf4e9f117c86