CVE-2026-45964None▾ SunlitIn 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 bal…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= 5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e < 3b2b6c42070ce4204936288253baf101e995c2d3Linux >= 5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e < b559be2ec6cdb2e9c2c36c23fbbd4690d8a5c3f7Linux >= 5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e < a1bc9561b617ec7e2d09e6c134d1db8fcf9ca4a6Linux >= 5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e < 655c9ba9915f05266998dbbf4b76b3c79b8a70aaLinux >= 5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e < e464e26b2457005c87e158570498274b9f3b90c7Linux >= 5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e < c20f925214249bb4fc04f7e197bea142a6438af6Linux >= 5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e < a2d4e9a76de0b2178001214ba5de5bf94a7354aaLinux >= 5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e < dd2fdc3504592d85e549c523b054898a036a6afeLinux 5.2Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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