pds_core: fix use-after-free on workqueue during remove
In the Linux kernel, the following vulnerability has been resolved: pds_core: fix use-after-free on workqueue during remove In pdsc_remove(), the workqueue is destroyed before pdsc_teardown() is called. This ordering allows two paths to queue work on the destroyed workqueue: 1. If pdsc_teardown() -> pdsc_devcmd_reset() times out, the error path in pdsc_devcmd_locked() queues health_work. 2. A NotifyQ event can trigger the ISR and queue work before free_irq() is called in pdsc_teardown(). Fix by moving destroy_workqueue() after pdsc_teardown() so the workqueue outlives every queuer; destroy_workqueue() then flushes any work still pending. Draining the queued work also requires ordering the teardown so the resources that work touches are freed last: - In pdsc_qcq_free(), after freeing the interrupt, cancel_work_sync() the queue's work and only then clear qcq->intx, so pdsc_process_adminq()'s read of qcq->intx for interrupt-credit return cannot race with the clear. - Free adminqcq before notifyqcq: the shared adminq ISR is released when adminqcq is freed, and the adminq work accesses notifyqcq, so both must be stopped before notifyqcq is freed.
CVE-2026-68318
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-68318
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "01ba61b55b2041a39c54aefb3153c770dd59a0ef",
"lessThan": "bac237c2aedb8225bfd2317c1361bbfce1e419ca",
"versionType": "git"
},
{
"status": "affected",
"version": "01ba61b55b2041a39c54aefb3153c770dd59a0ef",
"lessThan": "224214eb4182ff20a665b615a90b66017539dd75",
"versionType": "git"
},
{
"status": "affected",
"version": "01ba61b55b2041a39c54aefb3153c770dd59a0ef",
"lessThan": "9e0f80fac50ab95dd75537c8ecaf5051d01f19b5",
"versionType": "git"
},
{
"status": "affected",
"version": "01ba61b55b2041a39c54aefb3153c770dd59a0ef",
"lessThan": "ecc7a7d7569ec1d6a61e18372696b9de97635156",
"versionType": "git"
},
{
"status": "affected",
"version": "01ba61b55b2041a39c54aefb3153c770dd59a0ef",
"lessThan": "0ad134881508c36b65c1a8864f8bec53adbd3327",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/amd/pds_core/core.c",
"drivers/net/ethernet/amd/pds_core/main.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.4"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.4",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.101",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.42",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/amd/pds_core/core.c",
"drivers/net/ethernet/amd/pds_core/main.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-68318
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46463 · Revision 1
- Added to Heist Feed
- Publisher date