Answer in brief
CVE-2026-45964 records a Unknown severity vulnerability in SUNRPC: fix gss_auth kref leak in gss_alloc_msg error path. The current sources do not mark it as known exploited. The current feed maps 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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e <3b2b6c42070ce4204936288253baf101e995c2d3 || >=5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e <b559be2ec6cdb2e9c2c36c23fbbd4690d8a5c3f7 || >=5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e <a1bc9561b617ec7e2d09e6c134d1db8fcf9ca4a6 || >=5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e <655c9ba9915f05266998dbbf4b76b3c79b8a70aa || >=5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e <e464e26b2457005c87e158570498274b9f3b90c7 || >=5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e <c20f925214249bb4fc04f7e197bea142a6438af6 || >=5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e <a2d4e9a76de0b2178001214ba5de5bf94a7354aa || >=5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e <dd2fdc3504592d85e549c523b054898a036a6afe | 3b2b6c42070ce4204936288253baf101e995c2d3, b559be2ec6cdb2e9c2c36c23fbbd4690d8a5c3f7, a1bc9561b617ec7e2d09e6c134d1db8fcf9ca4a6, 655c9ba9915f05266998dbbf4b76b3c79b8a70aa, e464e26b2457005c87e158570498274b9f3b90c7, c20f925214249bb4fc04f7e197bea142a6438af6, a2d4e9a76de0b2178001214ba5de5bf94a7354aa, dd2fdc3504592d85e549c523b054898a036a6afe |
| Linux/Linuxgeneric | 5.2 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 6, 2026
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: fix gss_auth kref leak in gss_alloc_msg error path Commit 5940d1cf9f42 ("SUNRPC: Rebalance a kref in auth_gss.c") added a kref_get(&gss_auth->kref) call to balance the gss_put_auth() done in gss_release_msg(), but forgot to add a corresponding kref_put() on the error path when kstrdup_const() fails. If service_name is non-NULL and kstrdup_const() fails, the function jumps to err_put_pipe_version which calls put_pipe_version() and kfree(gss_msg), but never releases the gss_auth reference. This leads to a kref leak where the gss_auth structure is never freed. Add a forward declaration for gss_free_callback() and call kref_put() in the err_put_pipe_version error path to properly release the reference taken earlier.
Quoted source text, attributed separately from HOL analysis.