GHSA-8mjp-767h-9569 · 深刻度： medium — In the Linux kernel, the following vulnerability has been resolved: fs/proc: fix softlockup in...
In the Linux kernel, the following vulnerability has been resolved: fs/proc: fix softlockup in __read_vmcore (part 2) Since commit 5cbcb62dddf5 ("fs/proc: fix softlockup in __read_vmcore") the number of softlockups in __read_vmcore at kdump time have gone down, but they still happen sometimes. In a memory constrained environment like the kdump image, a softlockup is not just a harmless message, but it can interfere with things like RCU freeing memory, causing the crashdump to get stuck. The second loop in __read_vmcore has a lot more opportunities for natural sleep points, like scheduling out while waiting for a data write to happen, but apparently that is not always enough. Add a cond_resched() to the second loop in __read_vmcore to (hopefully) get rid of the softlockups.
総合評価: CVE-2025-21694 は低リスク（26.1/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.21%、11 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 | 0.03% | 0.21% | +0.18% |
| 2 | 2025-11-21 | 0.06% | 0.03% | -0.03% |
| 3 | 2025-11-18 | — | 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] |
| 5.5 | 3.1 | MEDIUM |
|
1.8 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-8mjp-767h-9569 · 深刻度： medium — In the Linux kernel, the following vulnerability has been resolved: fs/proc: fix softlockup in...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2025-21694 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-2025-21694 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2025-21694 |
suse
|
medium | CVE-2025-21694 severity moderate: SUSE including 69 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 346 product×package rows across 61 product lines (SLES-LTSS-TERADATA 15 SP2, SUSE Liberty Linux 9, … (61 product lines)): Known Not Affected 303, Fixed 43. | https://www.suse.com/security/cve/CVE-2025-21694/ |
ubuntu
|
medium | CVE-2025-21694 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1551 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1145, released 189, ignored 148, not-affected 68, needed 1. | https://ubuntu.com/security/CVE-2025-21694 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | >= 4.19.317, < 4.20 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.4.279, < 5.4.290 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.10.221, < 5.10.234 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.15.162, < 5.15.177 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.1.95, < 6.1.127 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.6.35, < 6.6.74 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.9.6, < 6.12.11 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | 6.13 | cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:* |
| linux | linux_kernel | 6.13 | cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:* |
| linux | linux_kernel | 6.13 | cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:* |
| linux | linux_kernel | 6.13 | cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:* |
| linux | linux_kernel | 6.13 | cpe:2.3:o:linux:linux_kernel:6.13:rc5:*:*:*:*:*:* |
| linux | linux_kernel | 6.13 | cpe:2.3:o:linux:linux_kernel:6.13:rc6:*:*:*:*:*:* |
| linux | linux_kernel | 6.13 | cpe:2.3:o:linux:linux_kernel:6.13:rc7:*:*:*:*:*:* |