In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_qca: Use del_timer_sync() before freeing
While looking at a crash report on a timer list being corrupted, which usually happens when a timer is freed while still active. This is commonly triggered by code calling del_timer() instead of del_timer_sync() just before freeing.
One possible culprit is the hci_qca driver, which does exactly that.
Eric mentioned that wake_retrans_timer could be rearmed via the work queue, so also move the destruction of the work queue before del_timer_sync().
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Ubuntu | — | Upgrade linux-intel-iotgUpgrade linux-azure-5.15Upgrade linux-intel-iotg-5.15Upgrade linux-realtimeUpgrade linux-hwe-5.15Upgrade linux-azureUpgrade linux-oracleUpgrade linux-kvmUpgrade linux-gkeopUpgrade linux-gcp-5.15Upgrade linux-ibmUpgrade linux-riscv-5.15Upgrade linux-oracle-5.15Upgrade linux-lowlatencyUpgrade linux-nvidiaUpgrade linux-raspiUpgrade linux-lowlatency-hwe-5.15Upgrade linux-awsUpgrade linuxUpgrade linux-aws-5.15Upgrade linux-gkeUpgrade linux-gcp | Mar 19, 2025 | Feb 26, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Feb 26, 2025 |
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