Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-63999— ethtool: rss: fix indir_table and hkey leak on get_rxfh failure

AI Predicted 4.3 Difficulty: Easy EPSS 0.17% · P6

Possible ATT&CK Techniques 1AI

T1530 · Data from Cloud Storage

Affected Version Matrix 20

VendorProductVersion RangeStatus
LinuxLinux4f038a6a02d20859a3479293cbf172b0f14cbdd6< 33d05c22d6f227c5ae171c46df2f6f8bf48047eaaffected
4f038a6a02d20859a3479293cbf172b0f14cbdd6< 80d95d92f828cfcace955d673637d944178b435faffected
4f038a6a02d20859a3479293cbf172b0f14cbdd6< 266297692f97008ca48bc311775c087c59bd7fe3affected
81a5174e64ce4fb7b7a2f6499b835c904c9451eeaffected
ec9faff49a4ea27731de39cb887b7e590e93157baffected
c5ed0eaddcbda56079091fc3876b140a6e70a548affected
a065b996052656a65afc51ad82336dc55ae4c72faffected
adee9db710a6117b978a25ed4153846b7c56ec9aaffected
… +12 more rows
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-63999

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
ethtool: rss: fix indir_table and hkey leak on get_rxfh failure
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于ethtool的rss功能中，rss_prepare_get()函数在get_rxfh失败时未释放已分配的间接表和哈希键缓冲区，导致内存泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 4f038a6a02d20859a3479293cbf172b0f14cbdd6 ~ 33d05c22d6f227c5ae171c46df2f6f8bf48047ea -
LinuxLinux 6.15 -

II. Public POCs for CVE-2026-63999

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-63999

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-63999 (3)

Same Patch Batch · Linux · 2026-07-19 · 431 CVEs total

CVE-2026-6379510.0 CRITICAL9p: avoid putting oldfid in p9_client_walk() error path
CVE-2026-638009.8 CRITICALpNFS: Fix use-after-free in pnfs_update_layout()
CVE-2026-640559.8 CRITICALnet: ethernet: cortina: Carry over frag counter
CVE-2026-640569.8 CRITICALnet: ethernet: cortina: Make RX SKB per-port
CVE-2026-640619.8 CRITICALnetfs: Fix early put of sink folio in netfs_read_gaps()
CVE-2026-640669.8 CRITICALnetfs: Fix netfs_read_to_pagecache() to pause on subreq failure
CVE-2026-640679.8 CRITICALnetfs: Fix missing barriers when accessing stream->subrequests locklessly
CVE-2026-640689.8 CRITICALnetfs: Fix missing locking around retry adding new subreqs
CVE-2026-640699.8 CRITICALnetfs: Fix cancellation of a DIO and single read subrequests
CVE-2026-638089.8 CRITICALexfat: fix potential use-after-free in exfat_find_dir_entry()
CVE-2026-640899.8 CRITICALbatman-adv: tt: fix negative last_changeset_len
CVE-2026-640919.8 CRITICALbatman-adv: tt: fix TOCTOU race for reported vlans
CVE-2026-533999.8 CRITICALnfsd: release layout stid on setlease failure
CVE-2026-641429.8 CRITICALksmbd: close durable scavenger races against m_fp_list lookups
CVE-2026-533989.8 CRITICALNFSD: Fix SECINFO_NO_NAME decode error cleanup
CVE-2026-641369.8 CRITICALsmb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked()
CVE-2026-641329.8 CRITICALipv6: ioam: refresh hdr pointer before ioam6_event()
CVE-2026-641229.8 CRITICALnet/mlx5e: Fix use-after-free in mlx5e_tx_reporter_timeout_recover
CVE-2026-641029.8 CRITICALRDMA/siw: Reject MPA FPDU length underflow before signed receive math
CVE-2026-641139.8 CRITICALixgbevf: fix use-after-free in VEPA multicast source pruning

Showing top 20 of 431 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-63999

No comments yet

Leave a comment