CVE-2026-68317

pds_core: fix auxiliary device add/del races

N/A
Published: August 10, 2026 at 12:02 PM UTC
Updated: August 17, 2026 at 05:18 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≥ 6.14.66.12.28 ≤ v < 6.12.1016.14.6 ≤ v < 6.156.15 ≤ v < 6.18.426.15 ≤ v < 7.1.66.15 ≤ v < 7.26.6.90 ≤ v < 6.6.1486.12.286.14.66.156.6.90861fccd43b8bafb533d97308862d20b7db3a2adb699bdc720c0255d1bb76cecba7382c1f2107af5f41e27b746241e57d968d1d61c008322338ca258fec5f7af1d5f64a38f9224cd27b274d1af55a7ed
Vendor states this is fixed in 646b58b543f3bb1641e9123b75ff7799fe7b42f1 (fixed)
Vendor states this is fixed in bdeab32a7a91acd295d52a2d4ab1cc3f2da5e454 (fixed)
Vendor states this is fixed in bfa33cd513c7ceb93c5a4c30e5662acd73c0a916 (fixed)
Vendor states this is fixed in cf0ed2ba202f5c3b300ec1bf7ff0b5d555f7d518 (fixed)
Vendor states this is fixed in ef194751fed50cf3452017b63f00142a0ab40c70 (fixed)
Vendor states this is fixed in 6.12.101 (unaffected)
Vendor states this is fixed in 6.15 (unaffected)
Vendor states this is fixed in 6.18.42 (unaffected)
Vendor states this is fixed in 6.6.148 (unaffected)
Vendor states this is fixed in 7.1.6 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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