qede: confirm skb is allocated before using
qede_build_skb() assumes build_skb() always works and goes straight
to skb_reserve(). However, build_skb() can fail under memory pressure.
This results in a kernel panic because the skb to reserve is NULL.
Add a check in case build_skb() failed to allocate and return NULL.
The NULL return is handled correctly in callers to qede_build_skb().
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2022-55120 | In the Linux kernel, the following vulnerability has been resolved: qede: confirm skb is allocated before using qede_build_skb() assumes build_skb() always works and goes straight to skb_reserve(). However, build_skb() can fail under memory pressure. This results in a kernel panic because the skb to reserve is NULL. Add a check in case build_skb() failed to allocate and return NULL. The NULL return is handled correctly in callers to qede_build_skb(). |
Tue, 23 Sep 2025 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-476 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:* |
Thu, 27 Feb 2025 02:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
threat_severity
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threat_severity
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Wed, 26 Feb 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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| Metrics |
threat_severity
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cvssV3_1
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Wed, 26 Feb 2025 02:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: qede: confirm skb is allocated before using qede_build_skb() assumes build_skb() always works and goes straight to skb_reserve(). However, build_skb() can fail under memory pressure. This results in a kernel panic because the skb to reserve is NULL. Add a check in case build_skb() failed to allocate and return NULL. The NULL return is handled correctly in callers to qede_build_skb(). | |
| Title | qede: confirm skb is allocated before using | |
| References |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-05-11T18:52:43.534Z
Reserved: 2025-02-26T01:49:39.248Z
Link: CVE-2022-49084
No data.
Status : Analyzed
Published: 2025-02-26T07:00:45.737
Modified: 2025-09-23T18:33:20.637
Link: CVE-2022-49084
OpenCVE Enrichment
Updated: 2025-07-12T22:16:12Z
EUVD