GHSA-xqcf-gwj9-5c88 · 深刻度: high — In the Linux kernel, the following vulnerability has been resolved: tap: free page on error...
In the Linux kernel, the following vulnerability has been resolved: tap: free page on error paths in tap_get_user_xdp() tap_get_user_xdp() rejects a frame shorter than ETH_HLEN with -EINVAL, and returns -ENOMEM when build_skb() fails. Both paths jump to the err label without freeing the page that vhost_net_build_xdp() allocated for the frame. tap_sendmsg() discards the per-buffer return value and always returns 0, so vhost_tx_batch() takes the success path and never frees the page; each rejected frame in a batch leaks one page-frag chunk. Free the page on both error paths, before the skb is built. This is the tap counterpart of the same leak in tun_xdp_one().
総合評価: CVE-2026-46320 は低リスク(31.9/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.17%、6 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 | 0.02% | 0.17% | +0.15% |
| 2 | 2026-06-10 | — | 0.02% | — |
EPSS の全履歴 (全 2 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 |
|---|---|---|---|---|---|---|
| 7.4 | 3.1 | HIGH |
|
2.8 | 4.0 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
GHSA-xqcf-gwj9-5c88 · 深刻度: high — In the Linux kernel, the following vulnerability has been resolved: tap: free page on error...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-46320 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. | https://security-tracker.debian.org/tracker/CVE-2026-46320 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2026-46320 |
suse
|
low | CVE-2026-46320 severity low: SUSE including 7 source package names (kernel-default, kernel-default-base, …), 13 product×package rows across 3 product lines (SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE, SUSE Linux Enterprise Server 12 SP4-LTSS, SUSE Linux Enterprise Server Teradata 12 SP3): Known Not Affected 13. | https://www.suse.com/security/cve/CVE-2026-46320/ |
ubuntu
|
high | CVE-2026-46320 high priority: Ubuntu including 160 source packages (linux, linux-allwinner-5.19, …), 1440 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): DNE 1038, ignored 172, needed 120, released 86, not-affected 23, pending 1. | https://ubuntu.com/security/CVE-2026-46320 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | >= 4.20, < 5.10.259 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.20, < 5.15.210 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.20, < 6.1.176 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.20, < 6.6.143 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.20, < 6.12.94 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.20, < 6.18.36 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.20, < 7.0.12 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.20, < 7.1 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |