CVE-2026-46296: spi: s3c64xx: fix NULL-deref on driver unbind
Vulnerability summary
CVE-2026-46296 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 1.5% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 32 · Related 32Timeline
- 08-06-2026PublishedVulnerability first disclosed.
- 19-06-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: spi: s3c64xx: fix NULL-deref on driver unbind A change moving DMA channel allocation from probe() back to s3c64xx_spi_prepare_transfer() failed to remove the corresponding deallocation from remove(). Drop the bogus DMA channel release from remove() to avoid triggering a NULL-pointer dereference on driver unbind. This issue was flagged by Sashiko when reviewing a controller deregistration fix.
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
2%
Versus all other CVEs
30-day change
Decrease -0.05 pp
From 0.16% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu139 products
- linux< 6.8.0-136.136 | All versions (No fix recorded) | < 7.0.0-28.28
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1061.64 | All versions (No fix recorded) | < 7.0.0-1009.9
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ f52b03c707444c5a3d1a0b9c5724f93ddc3c588e, < 29e219a18e21258bdb4ee12cecd0e9ec87d7e6a7 | ≥ f52b03c707444c5a3d1a0b9c5724f93ddc3c588e, < 1108b8722b9ff0cdd3e8aa18d98244fcd93b6760 | ≥ f52b03c707444c5a3d1a0b9c5724f93ddc3c588e, < 323a258f4b1916b5a3098618e036e033b2f2317f | ≥ f52b03c707444c5a3d1a0b9c5724f93ddc3c588e, < 1b66f16a571a10ba8889ac471755c8af9c5b9266 | ≥ f52b03c707444c5a3d1a0b9c5724f93ddc3c588e, < 22788b1a8611380b141e09a8896702e32d164238 | ≥ f52b03c707444c5a3d1a0b9c5724f93ddc3c588e, < 45daacbead8a009844bd5dba6cfa731332184d17 | 6.0
- linux_kernel≥ 6.0, < 6.1.176 | ≥ 6.2, < 6.6.140 | ≥ 6.7, < 6.12.88 | ≥ 6.13, < 6.18.30 | ≥ 6.19, < 7.0.7
Debian1 product
- linux< 6.1.176-1 | < 6.12.88-1 | < 7.0.7-1
3 vendors · 142 products
