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CVE-2026-72304

ASoC: SOF: ipc4-control: Fix TOCTOU in sof_ipc4_bytes_put PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc4-control: Fix TOCTOU in sof_ipc4_bytes_put In sof_ipc4_bytes_put(), the copy size is derived from the old data->size in the buffer rather than the incoming new data's size field from ucontrol. If the new data has a different size, the copy uses the wrong length: it may truncate valid data or copy stale bytes. Fix by validating and using the incoming data's sof_abi_hdr.size from ucontrol before copying.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected a062c8899fede2ab5660a817e9b602d3fa280a99 before 266f936db83aee6ca6473bbb06259bda52bf4fc3; affected a062c8899fede2ab5660a817e9b602d3fa280a99 before 4cf6a7ebbf8787393b158b2cc341723e5bebc4a8; affected a062c8899fede2ab5660a817e9b602d3fa280a99 before fb4293173db2d474d8fbc0e5ecf4943e6df2b40e; affected a062c8899fede2ab5660a817e9b602d3fa280a99 before 038406abde0d0883419ec89425ea941ec8bbef95; affected a062c8899fede2ab5660a817e9b602d3fa280a99 before 3ad673e7139cf214afd24321a829aad6575f4163
Linux / Linuxaffected 6.4; unaffected 0 before 6.4; 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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.