CVE-2026-74720

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Source
https://cve.org/CVERecord?id=CVE-2026-74720
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74720.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-74720
Downstream
Published
2026-08-22T15:33:13.342Z
Modified
2026-08-23T03:53:41.153969600Z
Summary
bpf: Preserve pointer state for commuted arithmetic
Details

In the Linux kernel, the following vulnerability has been resolved:

bpf: Preserve pointer state for commuted arithmetic

When scalar += pointer is handled in adjustptrminmaxvals(), the destination register inherits the pointer state from the source pointer. Copying only selected fields is fragile because pointer provenance is tracked by several bpfregstate 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 PTRTOSTACK registers and keeps parent identity fields consistent.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74720.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
f4d7e40a5b7157e1329c3c5b10f60d8289fc2941
Fixed
86b203aadc2930e0a4f9c6277b5b80ff3664c472
Fixed
8109c25e0c41f5f19a1c2380bb49c991a877494e
Fixed
d1959028190a7649b926f5867a58de5fe221b23c
Fixed
8cb23101a3fcc7432b451ea3d0f14a90711f4acf
Fixed
29c239f8dbec5ab33a61796724d189bddee6cd4b
Fixed
db6382ed3361bdd8129572a3423956cba1dae829
Fixed
eaffa1495e4fe6330aeff9f323ea3d48b01f118a
Fixed
a4c6f804b44c5c790269b25e0e61cf4e9f117c86

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74720.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.16.0
Fixed
5.10.265
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.216
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.183
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.152
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.104
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.45
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74720.json"