CVE-2026-63987— ethtool: coalesce: cap profile updates at NET_DIM_PARAMS_NUM_PROFILES
Possible ATT&CK Techniques 1AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f750dfe825b904164688adeb147950e0e0c4d262< d4c9cc7c47781c6f4fa29d80a1193a8bcd1525bc | affected |
f750dfe825b904164688adeb147950e0e0c4d262< 0c02c190bcd9822477038ff2cee10ea584ac1b1d | affected | ||
f750dfe825b904164688adeb147950e0e0c4d262< 6205f7166d2dd14a017a5802c81e5bd1421a8635 | affected | ||
f750dfe825b904164688adeb147950e0e0c4d262< 7281b096b072f6c6e30420e3467d738f2e4c4b57 | affected | ||
6.11 | affected | ||
< 6.11 | unaffected | ||
6.12.93≤ 6.12.* | unaffected | ||
6.18.35≤ 6.18.* | unaffected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2026-63987
Vulnerability Information
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Vulnerability Title
ethtool: coalesce: cap profile updates at NET_DIM_PARAMS_NUM_PROFILES
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ethtool: coalesce: cap profile updates at NET_DIM_PARAMS_NUM_PROFILES ethnl_update_profile() walks the ETHTOOL_A_PROFILE_IRQ_MODERATION nest list with an index 'i' and writes new_profile[i++] without bounding i. The destination is kmemdup()'d at NET_DIM_PARAMS_NUM_PROFILES entries (5), but the Netlink nest count is entirely user-controlled. Netlink policies do not have support for constraining the number of nested entries (or number of multi-attr entries).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 6.11版本存在安全漏洞，该漏洞源于ethtool coalesce功能在更新profile时未正确限制索引，可能导致越界写入。
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
II. Public POCs for CVE-2026-63987
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-63987 (3)
Same Patch Batch · Linux · 2026-07-19 · 431 CVEs total
| CVE-2026-63795 | 10.0 CRITICAL | 9p: avoid putting oldfid in p9_client_walk() error path |
| CVE-2026-63984 | 9.8 CRITICAL | ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress() |
| CVE-2026-64000 | 9.8 CRITICAL | net: hsr: fix potential OOB access in supervision frame handling |
| CVE-2026-64150 | 9.8 CRITICAL | netfilter: nft_inner: release local_lock before re-enabling softirqs |
| CVE-2026-63922 | 9.8 CRITICAL | ipv6: exthdrs: refresh nh after handling HAO option |
| CVE-2026-63924 | 9.8 CRITICAL | ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() |
| CVE-2026-64046 | 9.8 CRITICAL | net: tls: prevent chain-after-chain in plain text SG |
| CVE-2026-64047 | 9.8 CRITICAL | net: tls: fix off-by-one in sg_chain entry count for wrapped sk_msg ring |
| CVE-2026-63994 | 9.8 CRITICAL | tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]() |
| CVE-2026-64142 | 9.8 CRITICAL | ksmbd: close durable scavenger races against m_fp_list lookups |
| CVE-2026-63993 | 9.8 CRITICAL | vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu() |
| CVE-2026-64055 | 9.8 CRITICAL | net: ethernet: cortina: Carry over frag counter |
| CVE-2026-53398 | 9.8 CRITICAL | NFSD: Fix SECINFO_NO_NAME decode error cleanup |
| CVE-2026-64132 | 9.8 CRITICAL | ipv6: ioam: refresh hdr pointer before ioam6_event() |
| CVE-2026-53399 | 9.8 CRITICAL | nfsd: release layout stid on setlease failure |
| CVE-2026-64125 | 9.8 CRITICAL | net: bcmgenet: keep RBUF EEE/PM disabled |
| CVE-2026-64056 | 9.8 CRITICAL | net: ethernet: cortina: Make RX SKB per-port |
| CVE-2026-64069 | 9.8 CRITICAL | netfs: Fix cancellation of a DIO and single read subrequests |
| CVE-2026-63857 | 9.8 CRITICAL | net: airoha: Do not read uninitialized fragment address in airoha_dev_xmit() |
| CVE-2026-63978 | 9.8 CRITICAL | net/handshake: Drain pending requests at net namespace exit |
Showing top 20 of 431 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-64600
xfs: resample the data fork mapping after cycling ILOCK - CVE-2026-64206
Bluetooth: L2CAP: cancel pending_rx_work before taking conn- - CVE-2026-64207
net/sched: dualpi2: fix GSO backlog accounting - CVE-2026-64205
i2c: i801: fix hardware state machine corruption in error pa - CVE-2026-64192
bpf: Reject BPF_MAP_TYPE_INODE_STORAGE creation if BPF LSM i
Same vendor: Linux
- CVE-2026-64600
xfs: resample the data fork mapping after cycling ILOCK - CVE-2026-64206
Bluetooth: L2CAP: cancel pending_rx_work before taking conn- - CVE-2026-64207
net/sched: dualpi2: fix GSO backlog accounting - CVE-2026-64205
i2c: i801: fix hardware state machine corruption in error pa - CVE-2026-64192
bpf: Reject BPF_MAP_TYPE_INODE_STORAGE creation if BPF LSM i
V. Comments for CVE-2026-63987
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