🔐 CVE Alert

CVE-2026-23443

UNKNOWN 0.0

ACPI: processor: Fix previous acpi_processor_errata_piix4() fix

CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
9th

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: Fix previous acpi_processor_errata_piix4() fix After commi f132e089fe89 ("ACPI: processor: Fix NULL-pointer dereference in acpi_processor_errata_piix4()"), device pointers may be dereferenced after dropping references to the device objects pointed to by them, which may cause a use-after-free to occur. Moreover, debug messages about enabling the errata may be printed if the errata flags corresponding to them are unset. Address all of these issues by moving message printing to the points in the code where the errata flags are set.

Vendor linux
Product linux
Ecosystems
Industries
Technology
Published Apr 3, 2026
Last Updated Apr 13, 2026
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Affected Versions

Linux / Linux
ad86ac604f8391c0212a91412d4f764c7a85f254 < 2e369ba9eb7b8a06e9cc35a3e7fe73e59272f8c2 01e8751b37a366b1ca561add0042f2ceb18c03bf < edf4c2aaee08e8fd503fbae705c801e92a0b55d7 b803811485ac0b2f774b6bf3abc8b999ba3b7033 < e0c470049344e9346fff79d7e2362212c216665e 29f60d3d06818d40118a30d663231f027ae87a05 < 98473309a36acc271009b85e0bb53a4c0dddf5c2 0398b641be2b66c2fc7e0163c606ef19372e7ad5 < 8583f62259e1b315d5239371adfb36939cdab741 f132e089fe89cadc2098991f0a3cb05c3f824ac6 < bf504b229cb8d534eccbaeaa23eba34c05131e25 06724a60cfa9767ea90b0f5d3dfb5cdd251b64f5
Linux / Linux
6.1.165 < 6.1.167 6.6.128 < 6.6.130 6.12.75 < 6.12.78 6.18.16 < 6.18.20 6.19.6 < 6.19.10

References

NVD ↗ CVE.org ↗ EPSS Data ↗
git.kernel.org: https://git.kernel.org/stable/c/2e369ba9eb7b8a06e9cc35a3e7fe73e59272f8c2 git.kernel.org: https://git.kernel.org/stable/c/edf4c2aaee08e8fd503fbae705c801e92a0b55d7 git.kernel.org: https://git.kernel.org/stable/c/e0c470049344e9346fff79d7e2362212c216665e git.kernel.org: https://git.kernel.org/stable/c/98473309a36acc271009b85e0bb53a4c0dddf5c2 git.kernel.org: https://git.kernel.org/stable/c/8583f62259e1b315d5239371adfb36939cdab741 git.kernel.org: https://git.kernel.org/stable/c/bf504b229cb8d534eccbaeaa23eba34c05131e25