CVE-2025-71082Bluetooth: btusb: revert use of devm_kzalloc in btusb
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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 btusb_probe(), we use devm_kzalloc() 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 btusb_disconnect(), where calling usb_driver_release_interface(&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.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-416
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 98921dbd00c4e2e4bdd56423cb5edf98d57b45f7 before fff9206b0907252a41eb12b7c1407b9347df18b1; from 98921dbd00c4e2e4bdd56423cb5edf98d57b45f7 before cca0e9206e3bcc63cd3e72193e60149165d493cc; from 98921dbd00c4e2e4bdd56423cb5edf98d57b45f7 before c0ecb3e4451fe94f4315e6d09c4046dfbc42090b; 98921dbd00c4e2e4bdd56423cb5edf98d57b45f7 builds before 1e54c19eaf84ba652c4e376571093e58e144b339; from 98921dbd00c4e2e4bdd56423cb5edf98d57b45f7 before fdf7c640fb8a44a59b0671143d8c2f738bc48003; from 98921dbd00c4e2e4bdd56423cb5edf98d57b45f7 before 252714f1e8bdd542025b16321c790458014d6880 | CNA record |
linux linux_kernel linux:linux_kernel | from 3.7.1 before 5.15.198; from 5.16 before 6.1.160; from 6.2 before 6.6.120; from 6.7 before 6.12.64; from 6.13 before 6.18.4; 3.7; 6.19; 6.19; and 6 more ranges | NVD |
References
- https://git.kernel.org/stable/c/fff9206b0907252a41eb12b7c1407b9347df18b1patch
- https://git.kernel.org/stable/c/cca0e9206e3bcc63cd3e72193e60149165d493ccpatch
- https://git.kernel.org/stable/c/c0ecb3e4451fe94f4315e6d09c4046dfbc42090bpatch
- https://git.kernel.org/stable/c/1e54c19eaf84ba652c4e376571093e58e144b339patch
- https://git.kernel.org/stable/c/fdf7c640fb8a44a59b0671143d8c2f738bc48003patch
- https://git.kernel.org/stable/c/252714f1e8bdd542025b16321c790458014d6880patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.