CVE-2026-63999
Last modified
CVE-2026-63999 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: ethtool: rss: fix indir_table and hkey leak on get_rxfh failure rss_prepare_get() allocates the indirection table and hash key buffer via rss_get_data_alloc(), then calls ops->get_rxfh() to populate them. If get_rxfh() fails, the function returns an error without freeing the allocation.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: ethtool: rss: fix indir_table and hkey leak on get_rxfh failure rss_prepare_get() allocates the indirection table and hash key buffer via rss_get_data_alloc(), then calls ops->get_rxfh() to populate them. If get_rxfh() fails, the function returns an error without freeing the allocation.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 5.15.181, < 5.16 | — |
| Linux | Linux Kernel | >= 6.1.135, < 6.2 | — |
| Linux | Linux Kernel | >= 6.6.88, < 6.7 | — |
| Linux | Linux Kernel | >= 6.12.24, < 6.13 | — |
| Linux | Linux Kernel | >= 6.13.12, < 6.14 | — |
| Linux | Linux Kernel | >= 6.14.3, < 6.15 | — |
| Linux | Linux Kernel | >= 6.15.1, < 6.18.35 | — |
| Linux | Linux Kernel | >= 6.19, < 7.0.12 | — |
| Linux | Linux Kernel | 6.15 | — |
| Linux | Linux Kernel | 7.1 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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