CVE-2022-49555
Bluetooth: hci_qca: Use del_timer_sync() before freeing
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 26, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
0ff252c1976da5d80db1377eb39b551931e61826 < 4989bb03342941f2b730b37dfa38bce27b543661 0ff252c1976da5d80db1377eb39b551931e61826 < db03727b4bbbbb36e6ef4cb655c670eefb6448e9 0ff252c1976da5d80db1377eb39b551931e61826 < 37d17f63d085d601011964ade7371aeebeb6ed4b 0ff252c1976da5d80db1377eb39b551931e61826 < 2717654ae022e6ea959a4b7b762702fe1a4690c2 0ff252c1976da5d80db1377eb39b551931e61826 < 72ef98445aca568a81c2da050532500a8345ad3a
Linux / Linux
4.3
References
git.kernel.org: https://git.kernel.org/stable/c/4989bb03342941f2b730b37dfa38bce27b543661 git.kernel.org: https://git.kernel.org/stable/c/db03727b4bbbbb36e6ef4cb655c670eefb6448e9 git.kernel.org: https://git.kernel.org/stable/c/37d17f63d085d601011964ade7371aeebeb6ed4b git.kernel.org: https://git.kernel.org/stable/c/2717654ae022e6ea959a4b7b762702fe1a4690c2 git.kernel.org: https://git.kernel.org/stable/c/72ef98445aca568a81c2da050532500a8345ad3a