Answer in brief
CVE-2022-49190 records a Medium severity (CVSS 5.5) vulnerability in kernel/resource: fix kfree() of bootmem memory again. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ebff7d8f270d045338d9f4796014f4db429a17f9 <3379a60f6bb4afcd9c456e340ac525ae649d3ce7 || >=ebff7d8f270d045338d9f4796014f4db429a17f9 <a9e88c2618d228d7a4e7e515cf30dc0d0d813f27 || >=ebff7d8f270d045338d9f4796014f4db429a17f9 <d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8 || >=ebff7d8f270d045338d9f4796014f4db429a17f9 <ab86020070999e758ce2e60c4348f20bf7ddba56 || >=ebff7d8f270d045338d9f4796014f4db429a17f9 <0cbcc92917c5de80f15c24d033566539ad696892 | 3379a60f6bb4afcd9c456e340ac525ae649d3ce7, a9e88c2618d228d7a4e7e515cf30dc0d0d813f27, d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8, ab86020070999e758ce2e60c4348f20bf7ddba56, 0cbcc92917c5de80f15c24d033566539ad696892 |
| Linux/Linuxgeneric | 3.10 | Not reported |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
In the Linux kernel, the following vulnerability has been resolved: kernel/resource: fix kfree() of bootmem memory again Since commit ebff7d8f270d ("mem hotunplug: fix kfree() of bootmem memory"), we could get a resource allocated during boot via alloc_resource(). And it's required to release the resource using free_resource(). Howerver, many people use kfree directly which will result in kernel BUG. In order to fix this without fixing every call site, just leak a couple of bytes in such corner case.
Quoted source text, attributed separately from HOL analysis.