CVE-2022-49190None▾ SunlitIn 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 duri…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.3%
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.
Linux >= ebff7d8f270d045338d9f4796014f4db429a17f9 < 3379a60f6bb4afcd9c456e340ac525ae649d3ce7Linux >= ebff7d8f270d045338d9f4796014f4db429a17f9 < a9e88c2618d228d7a4e7e515cf30dc0d0d813f27Linux >= ebff7d8f270d045338d9f4796014f4db429a17f9 < d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8Linux >= ebff7d8f270d045338d9f4796014f4db429a17f9 < ab86020070999e758ce2e60c4348f20bf7ddba56Linux >= ebff7d8f270d045338d9f4796014f4db429a17f9 < 0cbcc92917c5de80f15c24d033566539ad696892Linux 3.10Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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