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Linux kernel SCSI UNMAP can miscalculate storage limits
published 4 months ago
Summary
The Linux kernel's SCSI storage code could incorrectly calculate the size of a UNMAP request, potentially allowing a request to wrap around the address limit. This could lead to unintended data removal or system instability. Updating the kernel to the latest version adds a proper overflow check to prevent this issue.
What to do
- Update echo linux to version 6.12.94-1.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Echo | echo | linux |
< 6.12.94-1 Fix: upgrade to 6.12.94-1
|
Original advisory text
ECHO-b647-adc1-c4e2
References
Timeline
Published25 Jun 2026
Updated25 Jun 2026
First seen25 Jun 2026
Sources
ECHO-b647-adc1-c4e2 · OSV
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