scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Partial Red Hat: 39 fixed, 5 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read In qla2x00_status_entry(), the FWI2 status path advances sense_data and shrinks par_sense_len by rsp_info_len: if (IS_FWI2_CAPABLE(ha)) { sense_data += rsp_info_len; par_sense_len -= rsp_info_len; } rsp_info_len is a 32-bit value taken directly from the target's FCP response (sf.rsp_data_len), while par_sense_len is the IOCB data area size (28 bytes for 24xx, 60 bytes for 29xx). A hostile or buggy target reporting an rsp_info_len larger than par_sense_len makes the unsigned subtraction underflow to a huge value and advances sense_data out of bounds. The underflowed par_sense_len then defeats the cap in qla2x00_handle_sense(): if (sense_len > par_sense_len) sense_len = par_sense_len; memcpy(cp->sense_buffer, sense_data, sense_len); so the memcpy reads up to SCSI_SENSE_BUFFERSIZE bytes from the out-of-bounds sense_data pointer, leaking adjacent response-ring/heap memory into the command's sense buffer. Clamp rsp_info_len to par_sense_len before the subtraction so par_sense_len can never underflow and sense_data stays within the IOCB data area. The fix sits before the comp_status switch, covering both qla2x00_handle_sense() call sites.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 2.6.36 and later | 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.51, 7.2.5, 7.3 | Patch available | CNA |
- Linux VendorLinux Affected 2.6.36 and later Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.51, 7.2.5, 7.3 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.51, 7.2.5, 7.3
Red Hat 13 advisories
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Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix yet |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet |
| Red Hat CodeReady Linux Builder EUS (v.9.6) | Fixed | RHSA-2026:91492 |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:71233 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:71232 |
| Red Hat Enterprise Linux AppStream E4S (v.9.2) | Fixed | RHSA-2026:92993 |
| Red Hat Enterprise Linux AppStream E4S (v.9.4) | Fixed | RHSA-2026:91489 |
| Red Hat Enterprise Linux AppStream EUS (v. 10.0) | Fixed | RHSA-2026:88687 |
| Red Hat Enterprise Linux AppStream EUS (v.9.6) | Fixed | RHSA-2026:91492 |
| Red Hat Enterprise Linux BaseOS (v. 10) | Fixed | RHSA-2026:71233 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2026:71213 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2026:71232 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.4) | Fixed | RHSA-2026:91585 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.6) | Fixed | RHSA-2026:91493 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.8) | Fixed | RHSA-2026:92997 |
| Red Hat Enterprise Linux BaseOS E4S (v.9.2) | Fixed | RHSA-2026:92993 |
| Red Hat Enterprise Linux BaseOS E4S (v.9.4) | Fixed | RHSA-2026:91489 |
| Red Hat Enterprise Linux BaseOS EUS (v. 10.0) | Fixed | RHSA-2026:88687 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.6) | Fixed | RHSA-2026:91492 |
| Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) | Fixed | RHSA-2026:91585 |
| Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) | Fixed | RHSA-2026:91493 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.8) | Fixed | RHSA-2026:92997 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2026:71213 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2026:71233 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2026:71232 |
| Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) | Fixed | RHSA-2026:88687 |
| Red Hat Enterprise Linux NFV (v. 8) | Fixed | RHSA-2026:71016 |
| Red Hat Enterprise Linux RT (v. 8) | Fixed | RHSA-2026:71016 |
| Red Hat Enterprise Linux Real Time (v. 10) | Fixed | RHSA-2026:71233 |
| Red Hat Enterprise Linux Real Time (v. 9) | Fixed | RHSA-2026:71232 |
| Red Hat Enterprise Linux Real Time E4S (v.9.2) | Fixed | RHSA-2026:93047 |
| Red Hat Enterprise Linux Real Time E4S (v.9.4) | Fixed | RHSA-2026:91489 |
| Red Hat Enterprise Linux Real Time EUS (v. 10.0) | Fixed | RHSA-2026:88687 |
| Red Hat Enterprise Linux Real Time EUS (v.9.6) | Fixed | RHSA-2026:91492 |
| Red Hat Enterprise Linux Real Time for NFV (v. 10) | Fixed | RHSA-2026:71233 |
| Red Hat Enterprise Linux Real Time for NFV (v. 9) | Fixed | RHSA-2026:71232 |
| Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) | Fixed | RHSA-2026:93047 |
| Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) | Fixed | RHSA-2026:91489 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) | Fixed | RHSA-2026:88687 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) | Fixed | RHSA-2026:91492 |
| Red Hat OpenShift Container Platform 4.22 | Fixed | RHSA-2026:74428 |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-89846
- 2026-10-03 Alias added: GHSA-w8mp-89wx-m5rw
- 2026-10-07 Fix available: RHSA-2026:74428 · Red Hat
- 2026-10-07 Fix available: Red Hat OpenShift Container Platform 4.22 · Red Hat
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-24 Fix available: RHSA-2026:88687 · Red Hat
- 2026-10-24 Fix available: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) +2 · Red Hat
- 2026-10-29 Fix available: Red Hat Enterprise Linux AppStream E4S (v.9.4), Red Hat Enterprise Linux BaseOS AUS (v.8.4), Red Hat Enterprise Linux BaseOS AUS (v.8.6) +5 · Red Hat
- 2026-10-29 Fix available: RHSA-2026:91585 · Red Hat
- 2026-10-29 Fix available: RHSA-2026:91493 · Red Hat
- 2026-10-29 Fix available: RHSA-2026:91489 · Red Hat
- 2026-10-30 Fix available: RHSA-2026:91492 · Red Hat
- 2026-10-30 Fix available: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6) +2 · Red Hat
- 2026-10-30 Affected versions changed · Red Hat
- 2026-10-30 Fix available: RHSA-2026:93047 · Red Hat
- 2026-10-30 Fix available: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS E4S (v.9.2) +3 · Red Hat
- 2026-10-31 Fix available: RHSA-2026:92993 · Red Hat
- 2026-10-31 Fix available: RHSA-2026:92997 · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/125b12861c726e58448bb95d55b04851fb131d1f
- https://git.kernel.org/stable/c/e57ace988bda5693f7b3645f652ea4b4220870ee
- https://git.kernel.org/stable/c/6b08c0cb110a1fba92f99d655020198489699815
- https://git.kernel.org/stable/c/be75ab791c9b3baca66c70ce03443afebc83acda
- https://git.kernel.org/stable/c/ebc41dfc59d190956e0113e8bd90c28f6f21e8b9
- https://git.kernel.org/stable/c/d7f7746ff031ae45724881261804f4bf5317c985
- https://git.kernel.org/stable/c/f6e8977bce887481b2b2b0e2e14a791270741cfb
- https://git.kernel.org/stable/c/ca6d880d6c70cb7946e7b3e05d7285f271b6d99e
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Sources
- CVE-2026-89846 · CVE Program
- CVE-2026-89846 · NVD
- FIRST EPSS
- GHSA-w8mp-89wx-m5rw · GitHub Advisory Database · CC BY 4.0
- CVE-2026-89846 · Red Hat security data · CC BY 4.0
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