Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before 86b203aadc2930e0a4f9c6277b5b80ff3664c472; affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before 8109c25e0c41f5f19a1c2380bb49c991a877494e; affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before d1959028190a7649b926f5867a58de5fe221b23c; affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before 8cb23101a3fcc7432b451ea3d0f14a90711f4acf; affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before 29c239f8dbec5ab33a61796724d189bddee6cd4b; affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before db6382ed3361bdd8129572a3423956cba1dae829; affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before eaffa1495e4fe6330aeff9f323ea3d48b01f118a; affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before a4c6f804b44c5c790269b25e0e61cf4e9f117c86 |
| Linux / Linux | affected 4.16; unaffected 0 before 4.16; unaffected 5.10.265 through 5.10.*; unaffected 5.15.216 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.152 through 6.6.*; unaffected 6.12.104 through 6.12.*; unaffected 6.18.45 through 6.18.*; unaffected 7.1.9 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/86b203aadc2930e0a4f9c6277b5b80ff3664c472
- https://git.kernel.org/stable/c/8109c25e0c41f5f19a1c2380bb49c991a877494e
- https://git.kernel.org/stable/c/d1959028190a7649b926f5867a58de5fe221b23c
- https://git.kernel.org/stable/c/8cb23101a3fcc7432b451ea3d0f14a90711f4acf
- https://git.kernel.org/stable/c/29c239f8dbec5ab33a61796724d189bddee6cd4b
- https://git.kernel.org/stable/c/db6382ed3361bdd8129572a3423956cba1dae829
- https://git.kernel.org/stable/c/eaffa1495e4fe6330aeff9f323ea3d48b01f118a
- https://git.kernel.org/stable/c/a4c6f804b44c5c790269b25e0e61cf4e9f117c86
ADP enrichment
No English description supplied.
No references supplied.