CVE-2022-49711

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Source
https://cve.org/CVERecord?id=CVE-2022-49711
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49711.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49711
Downstream
Related
Published
2025-02-26T02:24:28.224Z
Modified
2026-03-20T11:47:10.089300Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
bus: fsl-mc-bus: fix KASAN use-after-free in fsl_mc_bus_remove()
Details

In the Linux kernel, the following vulnerability has been resolved:

bus: fsl-mc-bus: fix KASAN use-after-free in fslmcbus_remove()

In fslmcbusremove(), mc->rootmcbusdev->mcio is passed to fsldestroymcio(). However, mc->rootmcbusdev is already freed in fslmcdeviceremove(). Then reference to mc->rootmcbusdev->mcio triggers KASAN use-after-free. To avoid the use-after-free, keep the reference to mc->rootmcbusdev->mcio in a local variable and pass to fsldestroymc_io().

This patch needs rework to apply to kernels older than v5.15.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49711.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
f93627146f0e371093966ed3d44c065aa077cfb1
Fixed
720ab105df7bf3eee62d2bddd41526b29d07d045
Fixed
ccd1751092341ac120a961835211f9f2e3735963
Fixed
161b68b0a728377aaa10a8e14c70e7734f3c9ff7
Fixed
928ea98252ad75118950941683893cf904541da9

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49711.json"