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
- 2026-08-28T17:48:10Z
- 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 create_space_info() error path
When kobject_init_and_add() fails, the call chain is:
create_space_info() -> btrfs_sysfs_add_space_info_type() -> kobject_init_and_add() -> failure -> kobject_put(&space_info->kobj) -> space_info_release() -> kfree(space_info)
Then control returns to create_space_info():
btrfs_sysfs_add_space_info_type() returns error -> goto out_free -> kfree(space_info)
This causes a double free.
Keep the direct kfree(space_info) for the earlier failure path, but after btrfs_sysfs_add_space_info_type() has called kobject_put(), let the kobject release callback handle the cleanup.
- References