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CVE-2026-63999Patch(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch linux linux_kernel systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

linux CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Patch / fix
Weakness type (CWE)
CWE-401

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • linux_kernel

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 2 signals
  • 2 total mentions across 1 day

Affected systems

Vendors
linux
Products
linux_kernel

2 versions affected across 1 product

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-19: 2Patch / Workaround · 2026-07-19: 2Technical Details · 2026-07-19: 207-19
Signal classification1 categories
Patch
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • CVE@CVEnew
    Patch

    CVE-2026-63999 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 … https://www.cve.org/CVERecord?id=CVE-2026-63999

    Post summary

    CVE-2026-63999, a kernel memory‑leak issue in ethtool’s RSS implementation, has been mitigated with a patch addressing indir_table and hkey leakage in rss_prepare_get().

    00020680
    58.1K followersView on X
  • Infoflowcloud@infoflowcloud
    Patch

    🚨*CVE* CVE-2026-63999 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 … https://www.cve.org/CVERecord?id=CVE-2026-63999 ----- Traducción: CVE-2026-63999 En … http://infoflow.cloud`

    Post summary

    The post highlights that CVE‑2026‑63999 has been fixed in the Linux kernel, links to the official CVE record, but does not provide a PoC, exploit details, or any mention of active use.

    0000034
    92 followersView on X
CPE platform detail13 entries

13 of 13 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---
OSlinuxlinux_kernel6.15--
OSlinuxlinux_kernel6.15--
OSlinuxlinux_kernel6.15--
OSlinuxlinux_kernel6.15--
OSlinuxlinux_kernel6.15--
OSlinuxlinux_kernel6.15--
OSlinuxlinux_kernel6.15--
OSlinuxlinux_kernel7.1--
OSlinuxlinux_kernel7.1--
OSlinuxlinux_kernel7.1--
OSlinuxlinux_kernel7.1--
OSlinuxlinux_kernel7.1--

Explore more

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