CVE-2022-49084
Last modified
CVE-2022-49084 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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().. EPSS estimates a 0.25% chance of exploitation in the next 30 days.
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().
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 4.18, < 4.19.238 | — |
| Linux | Linux Kernel | >= 4.20, < 5.4.189 | — |
| Linux | Linux Kernel | >= 5.5, < 5.10.111 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.34 | — |
| Linux | Linux Kernel | >= 5.16, < 5.16.20 | — |
| Linux | Linux Kernel | >= 5.17, < 5.17.3 | — |
| Linux | Linux Kernel | 5.18 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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