GHSA-p68h-c56f-p3v6 · 深刻度： medium — In the Linux kernel, the following vulnerability has been resolved: smb: client: split...
In the Linux kernel, the following vulnerability has been resolved: smb: client: split cached_fid bitfields to avoid shared-byte RMW races is_open, has_lease and on_list are stored in the same bitfield byte in struct cached_fid but are updated in different code paths that may run concurrently. Bitfield assignments generate byte read–modify–write operations (e.g. `orb $mask, addr` on x86_64), so updating one flag can restore stale values of the others. A possible interleaving is: CPU1: load old byte (has_lease=1, on_list=1) CPU2: clear both flags (store 0) CPU1: RMW store (old | IS_OPEN) -> reintroduces cleared bits To avoid this class of races, convert these flags to separate bool fields.
総合評価: CVE-2026-23230 は低リスク（39.6/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.22%、12 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% | 0.22% | +0.20% |
| 2 | 2026-02-19 | — | 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 |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
| 5.5 | 3.1 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
GHSA-p68h-c56f-p3v6 · 深刻度： medium — In the Linux kernel, the following vulnerability has been resolved: smb: client: split...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2026-23230 unimportant 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-2026-23230 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2026-23230 |
suse
|
medium | CVE-2026-23230 severity moderate: SUSE including 145 source package names (2.2.1-5.81:libblkid1-2.40.4-slfo.1.1_4.1, 2.2.1-5.81:libfdisk1-2.40.4-slfo.1.1_4.1, …), 400 product×package rows across 42 product lines (Container suse/sl-micro/6.1/baremetal-os-container, Container suse/sl-micro/6.1/base-os-container, … (42 product lines)): Fixed 231, Known Not Affected 144, First Fixed 25. | https://www.suse.com/security/cve/CVE-2026-23230/ |
ubuntu
|
medium | CVE-2026-23230 medium priority: Ubuntu including 157 source packages (linux, linux-allwinner-5.19, …), 1256 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): DNE 871, ignored 169, released 83, not-affected 75, needed 58. | https://ubuntu.com/security/CVE-2026-23230 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | >= 6.1, < 6.1.164 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.2, < 6.6.125 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.7, < 6.12.72 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.13, < 6.18.11 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.19, < 6.19.1 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |