High 7.1Published Dec 30, 2025

CVE-2023-54284media: av7110: prevent underflow in write_ts_to_decoder()

Updated under an hour ago (Oct 27, 2026, 3:10 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: media: av7110: prevent underflow in write_ts_to_decoder() The buf[4] value comes from the user via ts_play(). It is a value in the u8 range. The final length we pass to av7110_ipack_instant_repack() is "len - (buf[4] + 1) - 4" so add a check to ensure that the length is not negative. It's not clear that passing a negative len value does anything bad necessarily, but it's not best practice. With the new bounds checking the "if (!len)" condition is no longer possible or required so remove that.

CVSS: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf before 6680af5be9f08d830567e9118f76d3e64684db8f; from fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf before 6606e2404ee9e20a3ae5b42fc3660d41b739ed3e; from fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf before 620b983589e0223876bf1463b01100a9c67b56ba; from fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf before 86ba65e5357bfbb6c082f68b265a292ee1bdde1d; from fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf before ca4ce92e3ec9fd3c7c936b912b95c53331d5159c; from fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf before 423350af9e27f005611bd881b1df2cab66de943d; from fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf before 77eeb4732135c18c2fdfab80839645b393f3e774; from fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf before 7b93ab60fe9ed04be0ff155bc30ad39dea23e22b; and 1 more ranges	CNA record

References

References

https://git.kernel.org/stable/c/6680af5be9f08d830567e9118f76d3e64684db8f
https://git.kernel.org/stable/c/6606e2404ee9e20a3ae5b42fc3660d41b739ed3e
https://git.kernel.org/stable/c/620b983589e0223876bf1463b01100a9c67b56ba
https://git.kernel.org/stable/c/86ba65e5357bfbb6c082f68b265a292ee1bdde1d
https://git.kernel.org/stable/c/ca4ce92e3ec9fd3c7c936b912b95c53331d5159c
https://git.kernel.org/stable/c/423350af9e27f005611bd881b1df2cab66de943d
https://git.kernel.org/stable/c/77eeb4732135c18c2fdfab80839645b393f3e774
https://git.kernel.org/stable/c/7b93ab60fe9ed04be0ff155bc30ad39dea23e22b
https://git.kernel.org/stable/c/eed9496a0501357aa326ddd6b71408189ed872eb

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.