Kernel warning via unsynchronized card-type probe
Published Sep 16, 2026 · Updated Sep 16, 2026
Race condition in the Linux ene_ub6250 USB-storage driver allows attackers to trigger concurrent use of an active URB during device probing. The card-type probe calls ene_get_card_type without holding the device mutex while delayed scan work can use the same current URB object. Reachability requires the driver to probe a compatible USB storage device; public evidence reports a kernel warning, not a crash or broader impact.
Summary
What happened
Race condition in the Linux ene_ub6250 USB-storage driver allows attackers to trigger concurrent use of an active URB during device probing. The card-type probe calls ene_get_card_type without holding the device mutex while delayed scan work can use the same current URB object. Reachability requires the driver to probe a compatible USB storage device; public evidence reports a kernel warning, not a crash or broader impact.
The record
- CVE
- CVE-2026-90031
- Published
- Sep 16, 2026
- Updated
- Sep 16, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- Unavailable
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 16, 2026CVE publishedPublication date reported by the CVE source.
- Sep 16, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <5.10.270
- Affected versionversion=0 <5.15.221
- Affected versionversion=0 <6.1.188
- Affected versionversion=0 <6.12.110
- Affected versionversion=0 <6.18.51
- Affected versionversion=0 <6.6.157
- Affected versionversion=0 <7.2.5
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1c67f2ba9c5f7c5ab3670671c0d51c6504bcaf74
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <445fc368c6bc73eff0aeb3818cf5f355facfbb16
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5082546702c32a2700894d2c0ace784e038ef6a3
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8936d95dd04d34db96d4d1e3899eee52605bbedc
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9481bc04a8c351ed883a7f0e10939bbe9120ead7
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <996c319b8bd5ada1f62daae0d331d0b23e0f2117
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9c261a83131e241d67cb73ab578d0265bc19cfb5
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9cd335f4f41e84d1ab88d80150ffee8dee9650d7
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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