GHSA-gfr2-q5q8-v55v · 深刻度： high — In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix...
In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix livelock in tmigr_handle_remote_up() tmigr_handle_remote_cpu() skips timer_expire_remote() when cpu == smp_processor_id(), assuming the local softirq path already handled this CPU's timers. This assumption is wrong because jiffies can advance after the handling of the CPU's global timers in run_timer_base(BASE_GLOBAL) and before tmigr_handle_remote() evaluates the expiry times. As a consequence a timer which expires after the CPU local timer wheel advanced and becomes expired in the remote handling is ignored and the callback is never invoked and removed from the timer wheel. What's worse is that fetch_next_timer_interrupt_remote() keeps reporting it as expired, and the event is re-queued with expires == now on each iteration. The goto-again loop spins indefinitely. Fix this by calling timer_expire_remote() unconditionally. That's minimal overhead for the common case as __run_timer_base() returns immediately if there is nothing to expire in the local wheel. [ tglx: Amend change log and add a comment ]
総合評価: CVE-2026-53180 は中リスク（43.2/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.47%、37 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
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 | 2026-06-28 | 0.18% | 0.47% | +0.29% |
| 2 | 2026-06-25 | — | 0.18% | — |
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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
GHSA-gfr2-q5q8-v55v · 深刻度： high — In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2026-53180 unimportant 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-2026-53180 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2026-53180 |
suse
|
medium | CVE-2026-53180 severity moderate: SUSE including 19 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 157 product×package rows across 28 product lines (SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS, SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS, … (28 product lines)): Known Not Affected 157. | https://www.suse.com/security/cve/CVE-2026-53180/ |
ubuntu
|
medium | CVE-2026-53180 medium priority: Ubuntu including 162 source packages (linux, linux-allwinner-5.19, …), 1458 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): DNE 1051, ignored 172, not-affected 112, released 88, needed 35. | https://ubuntu.com/security/CVE-2026-53180 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | >= 6.9, < 6.12.94 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.9, < 6.18.36 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.9, < 7.0.13 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 6.9, < 7.1 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |