CVE-2026-64168: linux NULL Pointer Dereference
Vulnerability summary
CVE-2026-64168 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.4% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 43 · Related 43Timeline
- 19-07-2026PublishedVulnerability first disclosed.
Description
In the Linux kernel, the following vulnerability has been resolved: spi: sprd: fix error pointer deref after DMA setup failure The driver falls back to PIO mode if DMA setup fails during probe. Make sure to check the dma.enabled flag before trying to release the DMA channels also on late probe errors to avoid dereferencing an error pointer (or attempting to release a channel a second time). This issue was flagged by Sashiko when reviewing a devres allocation conversion patch.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.11%
Chance of exploitation in the next 30 days
Percentile
1%
Versus all other CVEs
30-day change
0.00 pp
From 0.11% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu163 products
- linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-139.139 | < 7.0.0-28.28
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1064.67 | < 7.0.0-1009.9
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 386119bc7be9fa5114ced0274a22a943df890b4b, < be74e276111f3c23b8e040c8c5e308f67a573add | ≥ 386119bc7be9fa5114ced0274a22a943df890b4b, < a8f233fb0c7be29b97cd249f64120bf35ce72805 | ≥ 386119bc7be9fa5114ced0274a22a943df890b4b, < 0cdea166c1a07c200caf9d0b722224fca43b23ae | ≥ 386119bc7be9fa5114ced0274a22a943df890b4b, < 450c319dd04d0eeff4184889768f7ada826a2e35 | ≥ 386119bc7be9fa5114ced0274a22a943df890b4b, < b6f1acf4e57ccf708cdc0cb70f5bb5b65162963b | ≥ 386119bc7be9fa5114ced0274a22a943df890b4b, < be409d2bbe9ca7da7b05cc7dde7499bc481f0766 | ≥ 386119bc7be9fa5114ced0274a22a943df890b4b, < c33b4496e95d04722055446c0a31213639438536 | ≥ 386119bc7be9fa5114ced0274a22a943df890b4b, < 3d67fffb74267772d461c02c67f1eff893ad547d | 5.1
- linux_kernel≥ 5.1, < 5.10.258 | ≥ 5.11, < 5.15.209 | ≥ 5.16, < 6.1.175 | ≥ 6.2, < 6.6.142 | ≥ 6.7, < 6.12.92 | ≥ 6.13, < 6.18.34 | ≥ 6.19, < 7.0.11 | 7.1:rc1 | 7.1:rc2 | 7.1:rc3 | 7.1:rc4
Debian1 product
- linux< 6.1.176-1 | < 6.12.94-1 | < 7.0.12-1
3 vendors · 166 products