scsi: qla2xxx: Validate BSG request_len before reading vendor_cmd[]
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Validate BSG request_len before reading vendor_cmd[] The FC BSG transport allocates job->request via memdup_user() using the exact user-supplied request_len. For FC_BSG_HST_VENDOR, fc_bsg_host_dispatch() only guarantees request_len covers msgcode and vendor_id; it does not account for the vendor_cmd[] flexible array. qla2xxx then reads the command selector vendor_cmd[0] and, in several sub-handlers, vendor_cmd[1]/[2] or structures overlaid on the vendor command area without verifying request_len. A caller holding CAP_SYS_RAWIO can submit a short request whose vendor_id matches the host, triggering out-of-bounds heap reads (KASAN-detectable, and able to mis-select a command or panic). Add a central guard in qla2x00_process_vendor_specific() so the selector is always in bounds, restrict the early vendor_cmd[0] read in qla24xx_bsg_request() to sufficiently long vendor messages, and add request_len checks to the sub-handlers that read further: qla24xx_proc_fcp_prio_cfg_cmd(), qla2x00_process_loopback(), qla84xx_reset(), qla84xx_updatefw(), qla2x00_read_optrom(), qla2x00_update_optrom(), qlafx00_mgmt_cmd() and qla28xx_validate_flash_image().
CVE-2026-97529
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-2026-97529
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": "01e0e15c8b3b32e006e5cccac10c8b377ac3d803",
"lessThan": "5f33efe04658968b6b3f432f904d5f1f74c12286",
"versionType": "git"
},
{
"status": "affected",
"version": "01e0e15c8b3b32e006e5cccac10c8b377ac3d803",
"lessThan": "ef63922d8bdea03de1804af39a6b12212acb1be2",
"versionType": "git"
},
{
"status": "affected",
"version": "01e0e15c8b3b32e006e5cccac10c8b377ac3d803",
"lessThan": "740f3458a4798af54aaf8cf63e797d407e8b6d3b",
"versionType": "git"
},
{
"status": "affected",
"version": "01e0e15c8b3b32e006e5cccac10c8b377ac3d803",
"lessThan": "f75bff451a2fac5aed82f9641df1e9a42c5a899d",
"versionType": "git"
},
{
"status": "affected",
"version": "01e0e15c8b3b32e006e5cccac10c8b377ac3d803",
"lessThan": "4cf38dd9465736141263ebb63375868311a0ec81",
"versionType": "git"
}
],
"programFiles": [
"drivers/scsi/qla2xxx/qla_bsg.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.10",
"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_bsg.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97529
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48773 · Revision 1
- Added to Heist Feed
- Publisher date