AZL-89088
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-89088.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-89088
- Upstream
- Published
- 2026-05-28T10:16:28Z
- Modified
- 2026-08-28T17:48:10.280481395Z
- Summary
- CVE-2026-46129 affecting package kernel for versions less than 6.6.141.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix double free in createspaceinfo() error path
When kobjectinitand_add() fails, the call chain is:
createspaceinfo() -> btrfssysfsaddspaceinfotype() -> kobjectinitandadd() -> failure -> kobjectput(&spaceinfo->kobj) -> spaceinforelease() -> kfree(space_info)
Then control returns to createspaceinfo():
btrfssysfsaddspaceinfotype() returns error -> goto outfree -> kfree(space_info)
This causes a double free.
Keep the direct kfree(spaceinfo) for the earlier failure path, but after btrfssysfsaddspaceinfotype() has called kobject_put(), let the kobject release callback handle the cleanup.
- References