GHSA-whrx-8qvw-6p89 · 深刻度： medium — In the Linux kernel, the following vulnerability has been resolved: netdevsim: Fix memory leak...
In the Linux kernel, the following vulnerability has been resolved: netdevsim: Fix memory leak of nsim_dev->fa_cookie kmemleak reports this issue: unreferenced object 0xffff8881bac872d0 (size 8): comm "sh", pid 58603, jiffies 4481524462 (age 68.065s) hex dump (first 8 bytes): 04 00 00 00 de ad be ef ........ backtrace: [<00000000c80b8577>] __kmalloc+0x49/0x150 [<000000005292b8c6>] nsim_dev_trap_fa_cookie_write+0xc1/0x210 [netdevsim] [<0000000093d78e77>] full_proxy_write+0xf3/0x180 [<000000005a662c16>] vfs_write+0x1c5/0xaf0 [<000000007aabf84a>] ksys_write+0xed/0x1c0 [<000000005f1d2e47>] do_syscall_64+0x3b/0x90 [<000000006001c6ec>] entry_SYSCALL_64_after_hwframe+0x63/0xcd The issue occurs in the following scenarios: nsim_dev_trap_fa_cookie_write() kmalloc() fa_cookie nsim_dev->fa_cookie = fa_cookie .. nsim_drv_remove() The fa_cookie allocked in nsim_dev_trap_fa_cookie_write() is not freed. To fix, add kfree(nsim_dev->fa_cookie) to nsim_drv_remove().
総合評価: CVE-2022-49803 は低リスク（23.9/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.16%、5 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 | 0.07% | 0.16% | +0.08% |
| 2 | 2026-02-25 | 0.02% | 0.07% | +0.06% |
| 3 | 2025-05-02 | — | 0.02% | — |
EPSS の全履歴 （全 3 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-whrx-8qvw-6p89 · 深刻度： medium — In the Linux kernel, the following vulnerability has been resolved: netdevsim: Fix memory leak...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2022-49803 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. | https://security-tracker.debian.org/tracker/CVE-2022-49803 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2022-49803 |
suse
|
medium | CVE-2022-49803 severity moderate: SUSE including 25 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 140 product×package rows across 29 product lines (SLES-LTSS-TERADATA 15 SP2, SUSE Linux Enterprise High Availability Extension 15 SP7, … (29 product lines)): Known Not Affected 140. | https://www.suse.com/security/cve/CVE-2022-49803/ |
ubuntu
|
medium | CVE-2022-49803 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 146, not-affected 135, released 92, needed 33. | https://ubuntu.com/security/CVE-2022-49803 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | >= 5.7, < 6.0.10 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | 6.1 | cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* |
| linux | linux_kernel | 6.1 | cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* |
| linux | linux_kernel | 6.1 | cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:* |
| linux | linux_kernel | 6.1 | cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:* |
| linux | linux_kernel | 6.1 | cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:* |