CVE-2026-68317

Local system crash via auxiliary-device deletion race

Published Aug 10, 2026 · Updated Aug 10, 2026

Race condition in the Linux kernel pds_core driver allows local users to crash the system during auxiliary-device deletion. The deletion path checks pf->vfs[vf_id].padev before taking config_lock, allowing concurrent deletions to clear the slot and then dereference NULL. Reachability requires pds_core on AMD Pensando systems and concurrent VF-reset and PF-devlink operations; a second add can instead leak an auxiliary device.

CVSS severity5.5
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the Linux kernel pds_core driver allows local users to crash the system during auxiliary-device deletion. The deletion path checks pf->vfs[vf_id].padev before taking config_lock, allowing concurrent deletions to clear the slot and then dereference NULL. Reachability requires pds_core on AMD Pensando systems and concurrent VF-reset and PF-devlink operations; a second add can instead leak an auxiliary device.

The record

CVE
CVE-2026-68317
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 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.

  1. Affected versionversion=0861fccd43b8bafb533d97308862d20b7db3a2ad <646b58b543f3bb1641e9123b75ff7799fe7b42f1
  2. Affected versionversion=6.12.28 <6.12.101
  3. Affected versionversion=6.14.6 <6.15
  4. Affected versionversion=6.15
  5. Affected versionversion=6.6.90 <6.6.148
  6. Affected versionversion=b699bdc720c0255d1bb76cecba7382c1f2107af5 <bdeab32a7a91acd295d52a2d4ab1cc3f2da5e454
  7. Affected versionversion=b699bdc720c0255d1bb76cecba7382c1f2107af5 <bfa33cd513c7ceb93c5a4c30e5662acd73c0a916
  8. Affected versionversion=b699bdc720c0255d1bb76cecba7382c1f2107af5 <cf0ed2ba202f5c3b300ec1bf7ff0b5d555f7d518
  9. Affected versionversion=f41e27b746241e57d968d1d61c008322338ca258 <ef194751fed50cf3452017b63f00142a0ab40c70
  10. Affected versionversion=fec5f7af1d5f64a38f9224cd27b274d1af55a7ed

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0861fccd43b8bafb533d97308862d20b7db3a2ad <646b58b543f3bb1641e9123b75ff7799fe7b42f1; version=6.12.28 <6.12.101; version=6.14.6 <6.15; version=6.15; version=6.6.90 <6.6.148; version=b699bdc720c0255d1bb76cecba7382c1f2107af5 <bdeab32a7a91acd295d52a2d4ab1cc3f2da5e454; version=b699bdc720c0255d1bb76cecba7382c1f2107af5 <bfa33cd513c7ceb93c5a4c30e5662acd73c0a916; version=b699bdc720c0255d1bb76cecba7382c1f2107af5 <cf0ed2ba202f5c3b300ec1bf7ff0b5d555f7d518; version=f41e27b746241e57d968d1d61c008322338ca258 <ef194751fed50cf3452017b63f00142a0ab40c70; version=fec5f7af1d5f64a38f9224cd27b274d1af55a7ed

Published CVSS scores

4.1Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
5.5Oracle LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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