Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ebff7d8f270d045338d9f4796014f4db429a17f9 before 3379a60f6bb4afcd9c456e340ac525ae649d3ce7; affected ebff7d8f270d045338d9f4796014f4db429a17f9 before a9e88c2618d228d7a4e7e515cf30dc0d0d813f27; affected ebff7d8f270d045338d9f4796014f4db429a17f9 before d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8; affected ebff7d8f270d045338d9f4796014f4db429a17f9 before ab86020070999e758ce2e60c4348f20bf7ddba56; affected ebff7d8f270d045338d9f4796014f4db429a17f9 before 0cbcc92917c5de80f15c24d033566539ad696892 |
| Linux / Linux | affected 3.10; unaffected 0 before 3.10; unaffected 5.10.237 through 5.10.*; unaffected 5.15.33 through 5.15.*; unaffected 5.16.19 through 5.16.*; unaffected 5.17.2 through 5.17.*; unaffected 5.18 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/3379a60f6bb4afcd9c456e340ac525ae649d3ce7
- https://git.kernel.org/stable/c/a9e88c2618d228d7a4e7e515cf30dc0d0d813f27
- https://git.kernel.org/stable/c/d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8
- https://git.kernel.org/stable/c/ab86020070999e758ce2e60c4348f20bf7ddba56
- https://git.kernel.org/stable/c/0cbcc92917c5de80f15c24d033566539ad696892
ADP enrichment
No English description supplied.