7.8

CVE-2026-23068: linux Double Free

CVSS: 7.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-23068DEBIAN-CVE-2026-23068
Published 04-02-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-23068 is a high (CVSS 7.8) Double Free vulnerability in linux. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.9% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.15%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 30 · Related 25
DLA-4476-1DSA-6126-1DSA-6127-1MGASA-2026-0097MGASA-2026-0098OPENSUSE-SU-2026:20416-1

Timeline

  1. 04-02-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: spi: spi-sprd-adi: Fix double free in probe error path The driver currently uses spi_alloc_host() to allocate the controller but registers it using devm_spi_register_controller(). If devm_register_restart_handler() fails, the code jumps to the put_ctlr label and calls spi_controller_put(). However, since the controller was registered via a devm function, the device core will automatically call spi_controller_put() again when the probe fails. This results in a double-free of the spi_controller structure. Fix this by switching to devm_spi_alloc_host() and removing the manual spi_controller_put() call.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

+0.02 pp

From 0.13% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.15%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu153 products
  • linuxAll versions (No fix recorded) | < 6.8.0-117.117
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1055.58
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ ac1775012058e13ef1522938e27f5973d9e3f053, < bddd3d10d039729b81cfb0804520c8832a701a0e | ≥ ac1775012058e13ef1522938e27f5973d9e3f053, < 417cdfd9b9f986e95bfcb1d68eb443e6e0a15f8c | ≥ ac1775012058e13ef1522938e27f5973d9e3f053, < 346775f2b4cf839177e8e86b94aa180a06dc15b0 | ≥ ac1775012058e13ef1522938e27f5973d9e3f053, < f6d6b3f172df118db582fe5ec43ae223a55d99cf | ≥ ac1775012058e13ef1522938e27f5973d9e3f053, < 383d4f5cffcc8df930d95b06518a9d25a6d74aac | 4.17
  • linux_kernel≥ 4.17, < 6.1.162 | ≥ 6.2, < 6.6.122 | ≥ 6.7, < 6.12.68 | ≥ 6.13, < 6.18.8 | 6.19:rc1 | 6.19:rc2 | 6.19:rc3 | 6.19:rc4 | 6.19:rc5 | 6.19:rc6
Debian1 product
  • linux< 6.1.162-1 | < 6.12.69-1 | < 6.18.8-1

3 vendors · 156 products

References

25 links
Show all 25 references