Answer in brief
CVE-2026-89975 records a Unknown severity vulnerability in nvme-fabrics: fix DHCHAP secret leak on parse failure. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <702c1ae0d31b44828ec3c87079def490c1ee1fb3 || >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <15d7a35a489287109b5a7c157d53d9b8214f0318 || >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549 || >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <afdee49a1b88ed9bb44e2b30e855297c169bcc53 | 702c1ae0d31b44828ec3c87079def490c1ee1fb3, 15d7a35a489287109b5a7c157d53d9b8214f0318, d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549, afdee49a1b88ed9bb44e2b30e855297c169bcc53 |
| Linux/Linuxgeneric | 6.0 | Not reported |
| Linux/Linuxgeneric | >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <3ce0e9b43f355dfa0bdc0e0dd889795752285791 || >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <702c1ae0d31b44828ec3c87079def490c1ee1fb3 || >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <15d7a35a489287109b5a7c157d53d9b8214f0318 || >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549 || >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <afdee49a1b88ed9bb44e2b30e855297c169bcc53 | 3ce0e9b43f355dfa0bdc0e0dd889795752285791, 702c1ae0d31b44828ec3c87079def490c1ee1fb3, 15d7a35a489287109b5a7c157d53d9b8214f0318, d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549, afdee49a1b88ed9bb44e2b30e855297c169bcc53 |
| Linux/Linuxgeneric | >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <35ec48228f6739339583e5a73ca315156372e30d || >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <3ce0e9b43f355dfa0bdc0e0dd889795752285791 || >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <702c1ae0d31b44828ec3c87079def490c1ee1fb3 || >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <15d7a35a489287109b5a7c157d53d9b8214f0318 || >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549 || >=f50fff73d620cd6e8f48bc58d4f1c944615a3fea <afdee49a1b88ed9bb44e2b30e855297c169bcc53 | 35ec48228f6739339583e5a73ca315156372e30d, 3ce0e9b43f355dfa0bdc0e0dd889795752285791, 702c1ae0d31b44828ec3c87079def490c1ee1fb3, 15d7a35a489287109b5a7c157d53d9b8214f0318, d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549, afdee49a1b88ed9bb44e2b30e855297c169bcc53 |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
In the Linux kernel, the following vulnerability has been resolved: nvme-fabrics: fix DHCHAP secret leak on parse failure nvmf_parse_options() duplicates dhchap_secret and dhchap_ctrl_secret with match_strdup() before validating the DHHC-1: representation. If validation fails, the parser returns -EINVAL before the temporary string in p is assigned to opts->dhchap_secret or opts->dhchap_ctrl_secret. nvmf_create_ctrl() subsequently frees opts, but nvmf_free_options() cannot release the unassigned temporary string. Each rejected option therefore leaks one allocation. This is easy to miss because valid secrets transfer ownership to opts and are freed normally, while the malformed-secret path still returns the expected -EINVAL to userspace. With CONFIG_NVME_HOST_AUTH enabled, the leak is reachable before the required-option checks and transport lookup. No NVMe-oF target or working transport connection is required; for example, repeatedly writing dhchap_secret=BAD or dhchap_ctrl_secret=BAD to /dev/nvme-fabrics deterministically takes the leaking parse path. Free the temporary string before leaving both validation error paths. Use kfree_sensitive() because the copied option may contain secret material even when its representation is rejected, matching the sensitive cleanup used for stored DHCHAP secrets.
Quoted source text, attributed separately from HOL analysis.