scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock The fcport->unsol_ctx_head list is modified from several contexts without a common lock. Entries are added in qla2xxx_process_purls_iocb() from the response queue ISR (under the qpair qp_lock), while they are removed from qla2xxx_process_purls_pkt() (DPC/purex worker), qla_nvme_xmt_ls_rsp() (NVMe-FC transport callback) and qla_nvme_release_lsrsp_cmd_kref() (SRB completion). The qpair qp_lock cannot serialize this per-fcport list since multiqueue adapters add entries through different qpairs, so a concurrent add and delete (or two concurrent deletes) can corrupt the list pointers. Introduce a dedicated per-fcport spinlock, unsol_ctx_lock, initialized in qla2x00_alloc_fcport(), and take it around every list_add_tail()/list_del() on unsol_ctx_head. The add nests under the existing qp_lock; no delete path takes qp_lock, so the lock order is consistent and deadlock free.
CVE-2026-97527
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-2026-97527
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": "875386b98857822b77ac7f95bdf367b70af5b78c",
"lessThan": "6c71726cdfda93ae169a75c7b1697eb870303125",
"versionType": "git"
},
{
"status": "affected",
"version": "875386b98857822b77ac7f95bdf367b70af5b78c",
"lessThan": "c1ee12eecbab9674fb73c9e00a93fac655d5a5dc",
"versionType": "git"
},
{
"status": "affected",
"version": "875386b98857822b77ac7f95bdf367b70af5b78c",
"lessThan": "b211d138cad86f749826d6132db6388eded992d8",
"versionType": "git"
},
{
"status": "affected",
"version": "875386b98857822b77ac7f95bdf367b70af5b78c",
"lessThan": "4d8ad6bc8cc5eff1870cef00a0d611f38f8b6bd0",
"versionType": "git"
},
{
"status": "affected",
"version": "875386b98857822b77ac7f95bdf367b70af5b78c",
"lessThan": "76da0c43c63eb0496649e372ac64466364d0fe7d",
"versionType": "git"
}
],
"programFiles": [
"drivers/scsi/qla2xxx/qla_def.h",
"drivers/scsi/qla2xxx/qla_init.c",
"drivers/scsi/qla2xxx/qla_nvme.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/scsi/qla2xxx/qla_def.h",
"drivers/scsi/qla2xxx/qla_init.c",
"drivers/scsi/qla2xxx/qla_nvme.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97527
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #48772 · Revision 1
- Added to Heist Feed
- Publisher date