Vulnerability in Kernel (CVE-2022-49193)

Summary

Vulnerability in Kernel (CVE-2022-49193). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 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:

ice: fix 'scheduling while atomic' on aux critical err interrupt

There's a kernel BUG splat on processing aux critical error
interrupts in ice_misc_intr():

[ 2100.917085] BUG: scheduling while atomic: swapper/15/0/0x00010000
...
[ 2101.060770] Call Trace:
[ 2101.063229]
[ 2101.065252] dump_stack+0x41/0x60
[ 2101.068587] __schedule_bug.cold.100+0x4c/0x58
[ 2101.073060] __schedule+0x6a4/0x830
[ 2101.076570] schedule+0x35/0xa0
[ 2101.079727] schedule_preempt_disabled+0xa/0x10
[ 2101.084284] __mutex_lock.isra.7+0x310/0x420
[ 2101.088580] ? ice_misc_intr+0x201/0x2e0 [ice]
[ 2101.093078] ice_send_event_to_aux+0x25/0x70 [ice]
[ 2101.097921] ice_misc_intr+0x220/0x2e0 [ice]
[ 2101.102232] __handle_irq_event_percpu+0x40/0x180
[ 2101.106965] handle_irq_event_percpu+0x30/0x80
[ 2101.111434] handle_irq_event+0x36/0x53
[ 2101.115292] handle_edge_irq+0x82/0x190
[ 2101.119148] handle_irq+0x1c/0x30
[ 2101.122480] do_IRQ+0x49/0xd0
[ 2101.125465] common_interrupt+0xf/0xf
[ 2101.129146]
...

As Andrew correctly mentioned previously[0], the following call
ladder happens:

ice_misc_intr() <- hardirq
ice_send_event_to_aux()
device_lock()
mutex_lock()
might_sleep()
might_resched() <- oops

Add a new PF state bit which indicates that an aux critical error
occurred and serve it in ice_service_task() in process context.
The new ice_pf::oicr_err_reg is read-write in both hardirq and
p…

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-2022-49193 has been found in Kernel.
Risk of unauthorized operations or information disclosure.
What to do: upgrade Kernel to 5.15.33, 5.16.19, 5.17.2 or later.
If unsure, ask your IT team or search "Kernel CVE-2022-49193" on the vendor's site.

CVE-2022-49193 (Kernel)
Patched: 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 5.15.33, 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 5.15.33, 5.16.19, 5.17.2
```
ステージング環境で 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":"5.14.0"},{"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-2022-49193 linux Fixed in: 5.17.3-1