CVE-2025-71082
- Source
- https://cve.org/CVERecord?id=CVE-2025-71082
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-71082.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-71082
- Downstream
- Related
- Published
- 2026-01-13T15:34:46.301Z
- Modified
- 2026-03-12T04:32:13.478200Z
- Summary
- Bluetooth: btusb: revert use of devm_kzalloc in btusb
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: btusb: revert use of devm_kzalloc in btusb
This reverts commit 98921dbd00c4e ("Bluetooth: Use devm_kzalloc in btusb.c file").
In btusbprobe(), we use devmkzalloc() to allocate the btusb data. This ties the lifetime of all the btusb data to the binding of a driver to one interface, INTF. In a driver that binds to other interfaces, ISOC and DIAG, this is an accident waiting to happen.
The issue is revealed in btusbdisconnect(), where calling usbdriverreleaseinterface(&btusb_driver, data->intf) will have devm free the data that is also being used by the other interfaces of the driver that may not be released yet.
To fix this, revert the use of devm and go back to freeing memory explicitly.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71082.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/1e54c19eaf84ba652c4e376571093e58e144b339
- https://git.kernel.org/stable/c/252714f1e8bdd542025b16321c790458014d6880
- https://git.kernel.org/stable/c/c0ecb3e4451fe94f4315e6d09c4046dfbc42090b
- https://git.kernel.org/stable/c/cca0e9206e3bcc63cd3e72193e60149165d493cc
- https://git.kernel.org/stable/c/fdf7c640fb8a44a59b0671143d8c2f738bc48003
- https://git.kernel.org/stable/c/fff9206b0907252a41eb12b7c1407b9347df18b1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71082.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-71082
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
-
Introduced98921dbd00c4e2e4bdd56423cb5edf98d57b45f7Fixedfff9206b0907252a41eb12b7c1407b9347df18b1Fixedcca0e9206e3bcc63cd3e72193e60149165d493ccFixedc0ecb3e4451fe94f4315e6d09c4046dfbc42090bFixed1e54c19eaf84ba652c4e376571093e58e144b339Fixedfdf7c640fb8a44a59b0671143d8c2f738bc48003Fixed252714f1e8bdd542025b16321c790458014d6880