Linux Kernel up to 6.6.156/6.12.109/6.18.50/7.2.4 scsi qla_nvme_fcp_abort/qla_nvme_ls_abort use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$5k-$25k1.35

Summaryinfo

A vulnerability, which was classified as very critical, was found in Linux Kernel up to 6.6.156/6.12.109/6.18.50/7.2.4. Affected by this vulnerability is the function qla_nvme_fcp_abort/qla_nvme_ls_abort of the component scsi. Such manipulation leads to use after free. This vulnerability is referenced as CVE-2026-89860. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.6.156/6.12.109/6.18.50/7.2.4 and classified as very critical. Affected by this issue is the function qla_nvme_fcp_abort/qla_nvme_ls_abort of the component scsi. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Initialize NVMe abort_work once at submission qla_nvme_fcp_abort() and qla_nvme_ls_abort() ran INIT_WORK() on priv->abort_work immediately before schedule_work(). INIT_WORK() reinitializes the work_struct, resetting its list head and clearing the pending bit. If an abort is issued more than once for the same command (for example, concurrent transport teardown and a timeout-driven abort), the second INIT_WORK() reinitializes a work item that is already queued, which can corrupt the workqueue list and lead to crashes or a looping worker. Initialize priv->abort_work once at command submission, next to the existing per-command spin_lock_init(&priv->cmd_lock), and leave only schedule_work() in the abort paths. schedule_work() already does nothing when the work item is still pending, so a repeated abort no longer disturbs an in-flight work item. The command is not returned to the transport until the final kref_put()/release callback runs after abort_work has completed, so the work item is idle before priv is reused and the single submission-time INIT_WORK() is safe.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2026-89860 since 09/11/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/16/2026).

Upgrading to version 6.6.157, 6.12.110, 6.18.51, 7.2.5 or 7.3-rc1 eliminates this vulnerability. Applying the patch b403700ac62fbf3c310196386e125879a182efcf/6a1b50c4879c2e6a034e8e85f9c055f0eea157c7/67f0d5187c29360388f7e1e503c627ec45d01089/f4aaa4a4e6f1da6f3abfd80e1917bef922287177/7e85f6dbc85616de2172bce8eaf84b387a723cd1 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.5

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.6.157/6.12.110/6.18.51/7.2.5/7.3-rc1
Patch: b403700ac62fbf3c310196386e125879a182efcf/6a1b50c4879c2e6a034e8e85f9c055f0eea157c7/67f0d5187c29360388f7e1e503c627ec45d01089/f4aaa4a4e6f1da6f3abfd80e1917bef922287177/7e85f6dbc85616de2172bce8eaf84b387a723cd1

Timelineinfo

09/11/2026 CVE reserved
09/16/2026 +5 days Advisory disclosed
09/16/2026 +0 days VulDB entry created
09/16/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-89860 (🔒)
GCVE (CVE): GCVE-0-2026-89860
GCVE (VulDB): GCVE-100-405680

Entryinfo

Created: 09/16/2026 13:43
Changes: 09/16/2026 13:43 (59)
Complete: 🔍
Cache ID: 216::103

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