CVE-2026-74720bpf: Preserve pointer state for commuted arithmetic
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before 86b203aadc2930e0a4f9c6277b5b80ff3664c472; from f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before 8109c25e0c41f5f19a1c2380bb49c991a877494e; from f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before d1959028190a7649b926f5867a58de5fe221b23c; from f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before 8cb23101a3fcc7432b451ea3d0f14a90711f4acf; from f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before 29c239f8dbec5ab33a61796724d189bddee6cd4b; from f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before db6382ed3361bdd8129572a3423956cba1dae829; from f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before eaffa1495e4fe6330aeff9f323ea3d48b01f118a; from f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 before a4c6f804b44c5c790269b25e0e61cf4e9f117c86 | CNA record |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.