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Vulnerabilities CVE-2022-49833

CVE-2022-49833

None
Open
TLP:CLEAR

btrfs: zoned: clone zoned device info when cloning a device

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Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: clone zoned device info when cloning a device When cloning a btrfs_device, we're not cloning the associated btrfs_zoned_device_info structure of the device in case of a zoned filesystem. Later on this leads to a NULL pointer dereference when accessing the device's zone_info for instance when setting a zone as active. This was uncovered by fstests' testcase btrfs/161.

Details

Confidence
90%
Published
May 1, 2025
Last Modified
Aug 15, 2026
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