Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-control: Use overflow checks in control_update size calc In sof_ipc3_control_update(), the expected_size calculation uses firmware-provided cdata->num_elems in arithmetic that could overflow on 32-bit platforms, wrapping to a small value. This would allow the cdata->rhdr.hdr.size comparison to pass with mismatched sizes, potentially leading to out-of-bounds access in snd_sof_update_control. Use check_mul_overflow() and check_add_overflow() to detect and reject overflowed size calculations.
References6
- git.kernel.org/stable/c/312c7d2ebe696da3f885eee77d52297664e57c53
- git.kernel.org/stable/c/6856b3c23b0995eefad5a6142b4365ef70e1fe4a
- git.kernel.org/stable/c/711d912b18763af62a63aa8f2419a774eb63bba4
- git.kernel.org/stable/c/8791977d7289f6e9d2b014f60a5455f053a7bc04
- git.kernel.org/stable/c/89a2309a9eec80d4c19e3aed62c4f923594d1911
- git.kernel.org/stable/c/ffd79e77f2fbacd7a5d40ad1d4c7f3f089a8f2f3
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 7 · as of 11 November 2026
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