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Vulnerability record · CVE-2026-46075 · published 27 May 2026

CVE-2026-46075: Linux kernel use after free vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: crypto: atmel-sha204a - Fix potential UAF and memory leak in remove path Unregister the hwrng to prevent new ->read() calls and flush the Atmel I2C workqueue before teardown to prevent a potential UAF if a queued callback runs while the device is being removed. Drop the early return to ensure sysfs entries are removed and ->hwrng.priv is freed, preventing a memory leak.

7.8 CVSS 3.1 High EPSS 0.18% · top 93.6% CWE-416 · Use after free Undergoing Analysis
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
24 Jun 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: atmel-sha204a - Fix potential UAF and memory leak in remove path Unregister the hwrng to prevent new ->read() calls and flush the Atmel I2C workqueue before teardown to prevent a potential UAF if a queued callback runs while the device is being removed. Drop the early return to ensure sysfs entries are removed and ->hwrng.priv is freed, preventing a memory leak.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/1193c12126d39bf986a5a9214827b73707b193ab Patch
https://git.kernel.org/stable/c/31901371ccd16b42d2f167b1018ba9ae8bd5a6c7 Patch
https://git.kernel.org/stable/c/6dbeb0f788582e1ab5dfc3f41994eac0ec88c2b5 Patch
https://git.kernel.org/stable/c/775c00d87c385b758da9504cf053acea00e2ed40 Patch
https://git.kernel.org/stable/c/bab1adf3b87e4bfac92c4f5963c63db434d561c1 Patch
https://git.kernel.org/stable/c/c5a45d14234bf26e28a89e3a5dcc08336595cf11 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-46075), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.