In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITE_SAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like "sg_write_same --ndob" we will crash in target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because its NULL. This patch adds a check for the NDOB bit in the common WRITE SAME code because we don't support it. And, it adds a check for zero SG elements in each handler in case the initiator tries to send a normal WRITE SAME with no data buffer.
総合評価: CVE-2022-21546 は低リスク（33.9/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.18%、7 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% | 0.18% | +0.14% |
| 2 | 2026-06-10 | 0.07% | 0.03% | -0.04% |
| 3 | 2026-02-26 | — | 0.07% | — |
EPSS の全履歴 （全 9 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 |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2022-21546 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-2022-21546 |
suse
|
medium | CVE-2022-21546 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, …), 390 product×package rows across 37 product lines (Image SLES12-SP5-Azure-BYOS, Image SLES12-SP5-Azure-HPC-BYOS, … (37 product lines)): Known Affected 231, Known Not Affected 82, Fixed 77. | https://www.suse.com/security/cve/CVE-2022-21546/ |
ubuntu
|
medium | CVE-2022-21546 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, ignored 150, released 124, not-affected 89, needed 43. | https://ubuntu.com/security/CVE-2022-21546 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | < 5.4.294 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.5, < 5.10.238 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.11, < 5.15.182 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 5.16, < 5.19 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | 5.19 | cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* |
| linux | linux_kernel | 5.19 | cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* |
| linux | linux_kernel | 5.19 | cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* |
| linux | linux_kernel | 5.19 | cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:* |
| linux | linux_kernel | 5.19 | cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:* |
| linux | linux_kernel | 5.19 | cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |