Vulnerability in Kernel (CVE-2022-49255)

Summary

Vulnerability in Kernel (CVE-2022-49255). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2 or later.

Original description

The description as published by the source.

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix missing free nid in f2fs_handle_failed_inode

This patch fixes xfstests/generic/475 failure.

[ 293.680694] F2FS-fs (dm-1): May loss orphan inode, run fsck to fix.
[ 293.685358] Buffer I/O error on dev dm-1, logical block 8388592, async page read
[ 293.691527] Buffer I/O error on dev dm-1, logical block 8388592, async page read
[ 293.691764] sh (7615): drop_caches: 3
[ 293.691819] sh (7616): drop_caches: 3
[ 293.694017] Buffer I/O error on dev dm-1, logical block 1, async page read
[ 293.695659] sh (7618): drop_caches: 3
[ 293.696979] sh (7617): drop_caches: 3
[ 293.700290] sh (7623): drop_caches: 3
[ 293.708621] sh (7626): drop_caches: 3
[ 293.711386] sh (7628): drop_caches: 3
[ 293.711825] sh (7627): drop_caches: 3
[ 293.716738] sh (7630): drop_caches: 3
[ 293.719613] sh (7632): drop_caches: 3
[ 293.720971] sh (7633): drop_caches: 3
[ 293.727741] sh (7634): drop_caches: 3
[ 293.730783] sh (7636): drop_caches: 3
[ 293.732681] sh (7635): drop_caches: 3
[ 293.732988] sh (7637): drop_caches: 3
[ 293.738836] sh (7639): drop_caches: 3
[ 293.740568] sh (7641): drop_caches: 3
[ 293.743053] sh (7640): drop_caches: 3
[ 293.821889] ------------[ cut here ]------------
[ 293.824654] kernel BUG at fs/f2fs/node.c:3334!
[ 293.826226] invalid opcode: 0000 [#1] PREEMPT SMP PTI
[ 293.828713] CPU: 0 PID: 7653 Comm: umount Tainted: G OE 5.17.0-rc1-custom #1
[ 293.830946] Hard…

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2022-49255 has been found in Kernel.
Risk of unauthorized operations or information disclosure.
What to do: upgrade Kernel to 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2 or later.
If unsure, ask your IT team or search "Kernel CVE-2022-49255" on the vendor's site.

CVE-2022-49255 (Kernel)
Patched: 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (unclassified) exists in Kernel.

📍 Affected scope

Check the vendor advisory for the affected versions of Kernel.

🔥 Severity

Severity: ?. Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'Kernel' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

1
Identify exposure identify
```
grep -r 'Kernel' . | grep -v node_modules
```
リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で Kernel を grep し、稼働しているサービス・バージョンを把握する。
2
Apply patch patch
```
Upgrade Kernel to 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2
```
ステージング環境で 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
3
Post-deployment verification verify
```
Confirm patched version is live in production
```
パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

Linux Kernel

[{"type":"ECOSYSTEM","events":[{"introduced":"4.19.0"},{"fixed":"5.4.189"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.33"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"5.16.19"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.17.0"},{"fixed":"5.17.2"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

Debian DEBIAN-CVE-2022-49255 linux Fixed in: 5.10.113-1
Ubuntu UBUNTU-CVE-2022-49255 linux-hwe-edge