ethtool: rss: fix indir_table and hkey leak on get_rxfh failure
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.
02 / AFFECTED SOFTWARE
Affected packages
1296 explicit affected versions
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/266297692f97008ca48bc311775c087c59bd7fe3
- https://git.kernel.org/stable/c/33d05c22d6f227c5ae171c46df2f6f8bf48047ea
- https://git.kernel.org/stable/c/80d95d92f828cfcace955d673637d944178b435f
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63999.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-63999