CVE-2022-49555 (GCVE-0-2022-49555)
Vulnerability from cvelistv5
Published
2025-02-26 02:14
Modified
2025-05-04 08:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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().
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ▼ | Linux | Linux |
Version: 0ff252c1976da5d80db1377eb39b551931e61826 Version: 0ff252c1976da5d80db1377eb39b551931e61826 Version: 0ff252c1976da5d80db1377eb39b551931e61826 Version: 0ff252c1976da5d80db1377eb39b551931e61826 Version: 0ff252c1976da5d80db1377eb39b551931e61826 |
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|
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_qca: Use del_timer_sync() before freeing\n\nWhile looking at a crash report on a timer list being corrupted, which\nusually happens when a timer is freed while still active. This is\ncommonly triggered by code calling del_timer() instead of\ndel_timer_sync() just before freeing.\n\nOne possible culprit is the hci_qca driver, which does exactly that.\n\nEric mentioned that wake_retrans_timer could be rearmed via the work\nqueue, so also move the destruction of the work queue before\ndel_timer_sync()."
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"datePublished": "2025-02-26T02:14:03.150Z",
"dateReserved": "2025-02-26T02:08:31.590Z",
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