GHSA-q8rf-2mp5-5994 · 深刻度： medium — In the Linux kernel, the following vulnerability has been resolved: netlink: Fix wraparounds of...
In the Linux kernel, the following vulnerability has been resolved: netlink: Fix wraparounds of sk->sk_rmem_alloc. Netlink has this pattern in some places if (atomic_read(&sk->sk_rmem_alloc) > sk->sk_rcvbuf) atomic_add(skb->truesize, &sk->sk_rmem_alloc); , which has the same problem fixed by commit 5a465a0da13e ("udp: Fix multiple wraparounds of sk->sk_rmem_alloc."). For example, if we set INT_MAX to SO_RCVBUFFORCE, the condition is always false as the two operands are of int. Then, a single socket can eat as many skb as possible until OOM happens, and we can see multiple wraparounds of sk->sk_rmem_alloc. Let's fix it by using atomic_add_return() and comparing the two variables as unsigned int. Before: [root@fedora ~]# ss -f netlink Recv-Q Send-Q Local Address:Port Peer Address:Port -1668710080 0 rtnl:nl_wraparound/293 * After: [root@fedora ~]# ss -f netlink Recv-Q Send-Q Local Address:Port Peer Address:Port 2147483072 0 rtnl:nl_wraparound/290 * ^ `--- INT_MAX - 576
総合評価: CVE-2025-38465 は低リスク（24/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.16%、5 パーセンタイル） 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.04% | 0.16% | +0.12% |
| 2 | 2025-12-21 | 0.06% | 0.04% | -0.02% |
| 3 | 2025-11-24 | — | 0.06% | — |
EPSS の全履歴 （全 4 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 5.5 | 3.1 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
GHSA-q8rf-2mp5-5994 · 深刻度： medium — In the Linux kernel, the following vulnerability has been resolved: netlink: Fix wraparounds of...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2025-38465 not yet assigned priority: Debian including 2 source packages (linux, linux-6.1), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. | https://security-tracker.debian.org/tracker/CVE-2025-38465 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2025-38465 |
suse
|
medium | CVE-2025-38465 severity moderate: SUSE including 477 source package names (2.1.3-6.80:kernel-default-base-6.4.0-35.1.21.12, 2.1.3-7.57:kernel-default-6.4.0-35.1, …), 958 product×package rows across 196 product lines (Container suse/sl-micro/6.0/base-os-container, Container suse/sl-micro/6.0/kvm-os-container, … (196 product lines)): Fixed 706, Known Affected 231, First Fixed 21. | https://www.suse.com/security/cve/CVE-2025-38465/ |
ubuntu
|
medium | CVE-2025-38465 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1414 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): DNE 1017, released 169, ignored 161, needed 45, not-affected 18, needs-triage 2, pending 2. | https://ubuntu.com/security/CVE-2025-38465 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | >= 2.6.13, < 5.4.296 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.5, < 5.10.240 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.11, < 5.15.189 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.16, < 6.1.146 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.2, < 6.6.99 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.7, < 6.12.39 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.13, < 6.15.7 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.12 | cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.12 | cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.12 | cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.12 | cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.12 | cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:* |
| linux | linux_kernel | 6.16 | cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:* |
| linux | linux_kernel | 6.16 | cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:* |
| linux | linux_kernel | 6.16 | cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:* |
| linux | linux_kernel | 6.16 | cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:* |
| linux | linux_kernel | 6.16 | cpe:2.3:o:linux:linux_kernel:6.16:rc5:*:*:*:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |