Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: of/overlay: put property on deadprops only after changeset add succeeds add_changeset_property() links a new property of a not-yet-live target node into the node's deadprops list before handing it to of_changeset_add_property(). If that fails, the error path frees the property but leaves the freed pointer linked in deadprops, and of_node_release() frees it a second time when the aborted overlay's node is released. Record the changeset entry first and link the property into deadprops only on success. of_changeset_add_property() never looks at the node's property lists, so the order of the two steps is otherwise immaterial, and the error path frees a property that nothing references.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f96278810150fc39085d1872e5b39ea06366d03e before 936f1ffcb87a1c50938a21176a6463af162cf4b5; affected f96278810150fc39085d1872e5b39ea06366d03e before d5151496a0a2b19c9c0c7b0ebf86b3de55a8fa3a; affected f96278810150fc39085d1872e5b39ea06366d03e before 7dc6a769153c0457077a0da4888a00f61e66de15; affected f96278810150fc39085d1872e5b39ea06366d03e before 5857035a3b53a4e7b5a0d5a740189901ece0b079; affected f96278810150fc39085d1872e5b39ea06366d03e before 814f2da6995772c07a7c9c2cc6028b6e3f3ecc9c; affected b52ca352489be8beb7de3a8181509a0deaf72e21; affected 4.19.49 before 4.20 |
| Linux / Linux | affected 5.0; unaffected 0 before 5.0; unaffected 6.6.160 through 6.6.*; unaffected 6.12.113 through 6.12.*; unaffected 6.18.56 through 6.18.*; unaffected 7.2.10 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/936f1ffcb87a1c50938a21176a6463af162cf4b5
- https://git.kernel.org/stable/c/d5151496a0a2b19c9c0c7b0ebf86b3de55a8fa3a
- https://git.kernel.org/stable/c/7dc6a769153c0457077a0da4888a00f61e66de15
- https://git.kernel.org/stable/c/5857035a3b53a4e7b5a0d5a740189901ece0b079
- https://git.kernel.org/stable/c/814f2da6995772c07a7c9c2cc6028b6e3f3ecc9c