CVE-2022-49084

low-risk
Published 2025-02-26

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().

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (2)

Affected Vendors

Linux

References (7)

Patch https://git.kernel.org/stable/c/034a92c6a81048128fc7b18d278d52438a13902a
Patch https://git.kernel.org/stable/c/4e910dbe36508654a896d5735b318c0b88172570
Patch https://git.kernel.org/stable/c/8928239e5e2e460d95b8a0b89f61671625e7ece0
Patch https://git.kernel.org/stable/c/9648adb1b3ece55c657d3a4f52bfee663b710dfe
Patch https://git.kernel.org/stable/c/b2d6b3db9d1cf80908964036dbe1c52a86b1afb1
Patch https://git.kernel.org/stable/c/c9bdce2359b5f4986eb38d1e81865b3586cc20d2
Patch https://git.kernel.org/stable/c/e1fd0c42acfa22bb34d2ab6a111484f466ab8093
25
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 7/34 · Low