7.8

CVE-2026-46075: crypto: atmel-sha204a - Fix potential UAF and memory leak in remove path

Undergoing analysis
AliasesUBUNTU-CVE-2026-46075DEBIAN-CVE-2026-46075
Published 27-05-2026Last modified 14-06-2026

Vulnerability summary

CVE-2026-46075 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.13%
0%100%
Low · -0.05 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 33 · Related 33
OPENSUSE-SU-2026:10954-1OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1

Timeline

  1. 27-05-2026
    PublishedVulnerability first disclosed.
  2. 14-06-2026
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

Decrease -0.05 pp

From 0.18% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu155 products
  • linuxAll versions (No fix recorded) | < 6.8.0-136.136 | < 7.0.0-27.27
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1061.64 | < 7.0.0-1008.8
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ da001fb651b00e1deeaf24767dd691ae8152a4f5, < 6dbeb0f788582e1ab5dfc3f41994eac0ec88c2b5 | ≥ da001fb651b00e1deeaf24767dd691ae8152a4f5, < c5a45d14234bf26e28a89e3a5dcc08336595cf11 | ≥ da001fb651b00e1deeaf24767dd691ae8152a4f5, < 775c00d87c385b758da9504cf053acea00e2ed40 | ≥ da001fb651b00e1deeaf24767dd691ae8152a4f5, < 1193c12126d39bf986a5a9214827b73707b193ab | ≥ da001fb651b00e1deeaf24767dd691ae8152a4f5, < 31901371ccd16b42d2f167b1018ba9ae8bd5a6c7 | ≥ da001fb651b00e1deeaf24767dd691ae8152a4f5, < bab1adf3b87e4bfac92c4f5963c63db434d561c1 | 5.3
  • linux_kernel≥ 5.3, < 6.1.175 | ≥ 6.2, < 6.6.140 | ≥ 6.7, < 6.12.86 | ≥ 6.13, < 6.18.27 | ≥ 6.19, < 7.0.4
Debian1 product
  • linux< 6.1.176-1 | < 6.12.86-1 | < 7.0.4-1

3 vendors · 158 products

References

31 links
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