Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get In sof_ipc3_bytes_put(), the size used for the memcpy is derived from the old data->size already in the buffer, not the incoming new data's size field. If the new data has a different size, the copy length is wrong: it may truncate valid data or copy stale bytes. Similarly, sof_ipc3_bytes_get() checks data->size against max_size without accounting for the sizeof(struct sof_ipc_ctrl_data) offset of the flex array within the allocation. Fix bytes_put to validate and use the incoming data's sof_abi_hdr.size from ucontrol before copying. Fix bytes_get to subtract sizeof(*cdata) from the bounds check to match the actual available space.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 544ac8858f249950b4d99c68e538cdc07300528f before 8bd715a9d882fe1993bb2aec5eff89fffa946592; affected 544ac8858f249950b4d99c68e538cdc07300528f before 0dce240145f47545d2e4b18c6d58033b83e1fd0e; affected 544ac8858f249950b4d99c68e538cdc07300528f before ed4f758f34be4c32e02933ac4fa044589d9c1c16; affected 544ac8858f249950b4d99c68e538cdc07300528f before 0c4fbdaca225b97122b61b68c5353caa33a253c3; affected 544ac8858f249950b4d99c68e538cdc07300528f before 92f90917413bdd6078fefff6f6c83a07bf870b04; affected 544ac8858f249950b4d99c68e538cdc07300528f before 1f97760417b5faa60e9642fd0ed61eb17d0b1b39 |
| Linux / Linux | affected 5.18; unaffected 0 before 5.18; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/8bd715a9d882fe1993bb2aec5eff89fffa946592
- https://git.kernel.org/stable/c/0dce240145f47545d2e4b18c6d58033b83e1fd0e
- https://git.kernel.org/stable/c/ed4f758f34be4c32e02933ac4fa044589d9c1c16
- https://git.kernel.org/stable/c/0c4fbdaca225b97122b61b68c5353caa33a253c3
- https://git.kernel.org/stable/c/92f90917413bdd6078fefff6f6c83a07bf870b04
- https://git.kernel.org/stable/c/1f97760417b5faa60e9642fd0ed61eb17d0b1b39
ADP enrichment
No English description supplied.
No references supplied.