GHSA-v56g-44rc-67wq · 深刻度： medium — In the Linux kernel, the following vulnerability has been resolved: md raid: fix hang when...
In the Linux kernel, the following vulnerability has been resolved: md raid: fix hang when stopping arrays with metadata through dm-raid When using device-mapper's dm-raid target, stopping a RAID array can cause the system to hang under specific conditions. This occurs when: - A dm-raid managed device tree is suspended from top to bottom (the top-level RAID device is suspended first, followed by its underlying metadata and data devices) - The top-level RAID device is then removed Removing the top-level device triggers a hang in the following sequence: the dm-raid destructor calls md_stop(), which tries to flush the write-intent bitmap by writing to the metadata sub-devices. However, these devices are already suspended, making them unable to complete the write-intent operations and causing an indefinite block. Fix: - Prevent bitmap flushing when md_stop() is called from dm-raid destructor context and avoid a quiescing/unquescing cycle which could also cause I/O - Still allow write-intent bitmap flushing when called from dm-raid suspend context This ensures that RAID array teardown can complete successfully even when the underlying devices are in a suspended state. This second patch uses md_is_rdwr() to distinguish between suspend and destructor paths as elaborated on above.
総合評価: CVE-2026-43309 は低リスク（22.9/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.12%、2 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% | 0.12% | +0.10% |
| 2 | 2026-05-09 | — | 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 |
|---|---|---|---|---|---|---|
| 5.5 | 3.1 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
GHSA-v56g-44rc-67wq · 深刻度： medium — In the Linux kernel, the following vulnerability has been resolved: md raid: fix hang when...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-43309 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. | https://security-tracker.debian.org/tracker/CVE-2026-43309 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2026-43309 |
suse
|
medium | CVE-2026-43309 severity moderate: SUSE including 8 source package names (kernel-default, kernel-default-base, …), 26 product×package rows across 5 product lines (SUSE Linux Enterprise Micro 5.0, SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE, … (5 product lines)): Known Not Affected 26. | https://www.suse.com/security/cve/CVE-2026-43309/ |
ubuntu
|
medium | CVE-2026-43309 medium priority: Ubuntu including 161 source packages (linux, linux-allwinner-5.19, …), 1449 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): DNE 1048, ignored 173, needed 130, released 83, not-affected 10, needs-triage 5. | https://ubuntu.com/security/CVE-2026-43309 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | >= 4.14.292, < 4.15 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.19.257, < 4.20 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.4.212, < 5.5 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.10.140, < 5.11 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.15.64, < 5.16 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.19.6, < 6.0 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.0.1, < 6.18.16 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.19, < 6.19.6 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | 6.0 | cpe:2.3:o:linux:linux_kernel:6.0:-:*:*:*:*:*:* |
| linux | linux_kernel | 6.0 | cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:* |
| linux | linux_kernel | 6.0 | cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:* |
| linux | linux_kernel | 6.0 | cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:* |
| linux | linux_kernel | 6.0 | cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:* |
| linux | linux_kernel | 6.0 | cpe:2.3:o:linux:linux_kernel:6.0:rc7:*:*:*:*:*:* |