In the Linux kernel, the following vulnerability has been resolved: mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages The h->*_huge_pages counters are protected by the hugetlb_lock, but alloc_huge_page has a corner case where it can decrement the counter outside of the lock. This could lead to a corrupted value of h->resv_huge_pages, which we have observed on our systems. Take the hugetlb_lock before decrementing h->resv_huge_pages to avoid a potential race.
総合評価: CVE-2022-50285 は低リスク(23.6/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.15%、4 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% | 0.15% | +0.12% |
| 2 | 2025-09-16 | — | 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] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2022-50285 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2022-50285 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2022-50285 |
suse
|
medium | CVE-2022-50285 severity moderate: SUSE including 272 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 472 product×package rows across 50 product lines (Image SLES12-SP5-Azure-BYOS, Image SLES12-SP5-Azure-HPC-BYOS, … (50 product lines)): Known Affected 231, Known Not Affected 164, Fixed 77. | https://www.suse.com/security/cve/CVE-2022-50285/ |
ubuntu
|
medium | CVE-2022-50285 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, ignored 160, released 148, not-affected 84, needed 4, needs-triage 1. | https://ubuntu.com/security/CVE-2022-50285 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | >= 4.3.6, < 4.4 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.4.1, < 4.9.332 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.10, < 4.14.298 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.15, < 4.19.264 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.20, < 5.4.223 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.5, < 5.10.153 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.11, < 5.15.76 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.16, < 6.0.6 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | 4.4 | cpe:2.3:o:linux:linux_kernel:4.4:-:*:*:*:*:*:* |
| linux | linux_kernel | 4.4 | cpe:2.3:o:linux:linux_kernel:4.4:rc5:*:*:*:*:*:* |
| linux | linux_kernel | 4.4 | cpe:2.3:o:linux:linux_kernel:4.4:rc6:*:*:*:*:*:* |
| linux | linux_kernel | 4.4 | cpe:2.3:o:linux:linux_kernel:4.4:rc7:*:*:*:*:*:* |
| linux | linux_kernel | 4.4 | cpe:2.3:o:linux:linux_kernel:4.4:rc8:*:*:*:*:*:* |
| linux | linux_kernel | 6.1 | cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* |