scsi: qla2xxx: Bound VP index against VP_CTRL IOCB bitmap size
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Bound VP index against VP_CTRL IOCB bitmap size The VP control IOCB selects its target virtual port by setting one bit in vp_idx_map, a fixed 16-byte (128-bit) array in both vp_ctrl_entry_24xx and vp_ctrl_entry_24xx_ext. qla25xx_ctrlvp_iocb() computes map = (vp_index - 1) / 8 and writes vce->vp_idx_map[map] without checking that map stays within the array. max_npiv_vports is taken from firmware and only sanitized to a MIN_MULTI_ID_FABRIC-aligned boundary, so it can legitimately be 191 or 255, and qla24xx_control_vp() only rejects vp_index >= max_npiv_vports. A vp_index above 128 therefore yields map >= 16 and an out-of-bounds write of up to 16 bytes past vp_idx_map, corrupting the trailing IOCB fields (or the adjacent request-ring slot on the 64-byte layout). Reject a vp_index that cannot be represented in the IOCB bitmap in qla24xx_control_vp(), and add a defensive ARRAY_SIZE() guard in qla25xx_ctrlvp_iocb() before the write. Adapters that report the usual 63 or 127 NPIV vports are unaffected.
CVE-2026-97535
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-2026-97535
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": "2853192e154b813fe34a6cbee5e34dfef50d29d0",
"lessThan": "674d783f2e80d0d7c1c86bf36dc0a09033e704de",
"versionType": "git"
},
{
"status": "affected",
"version": "2853192e154b813fe34a6cbee5e34dfef50d29d0",
"lessThan": "c80a0362a0fe548c15a0324b1f61c04b62bb2174",
"versionType": "git"
},
{
"status": "affected",
"version": "2853192e154b813fe34a6cbee5e34dfef50d29d0",
"lessThan": "48a44e19746eaa70320a3c2571dcb345192fca72",
"versionType": "git"
},
{
"status": "affected",
"version": "2853192e154b813fe34a6cbee5e34dfef50d29d0",
"lessThan": "13354ad251ab009102597a791bc7c4d2265229e1",
"versionType": "git"
},
{
"status": "affected",
"version": "2853192e154b813fe34a6cbee5e34dfef50d29d0",
"lessThan": "878613ecb5a36db26859c4fd83daf9283a334fa2",
"versionType": "git"
}
],
"programFiles": [
"drivers/scsi/qla2xxx/qla_iocb.c",
"drivers/scsi/qla2xxx/qla_mid.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.16",
"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_iocb.c",
"drivers/scsi/qla2xxx/qla_mid.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97535
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48779 · Revision 1
- Added to Heist Feed
- Publisher date