CVE-2022-49474 - CVE House
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Status published Unknown CVE-2022-49474

Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout Connecting the same socket twice consecutively in sco_sock_connect() could lead to a race condition where two sco_conn objects are created but only one is associated with the socket. If the socket is closed before the SCO connection is established, the timer associated with the dangling sco_conn object won't be canceled. As the sock object is being freed, the use-after-free problem happens when the timer callback function sco_sock_timeout() accesses the socket. Here's the call trace: dump_stack+0x107/0x163 ? refcount_inc+0x1c/ print_address_description.constprop.0+0x1c/0x47e ? refcount_inc+0x1c/0x7b kasan_report+0x13a/0x173 ? refcount_inc+0x1c/0x7b check_memory_region+0x132/0x139 refcount_inc+0x1c/0x7b sco_sock_timeout+0xb2/0x1ba process_one_work+0x739/0xbd1 ? cancel_delayed_work+0x13f/0x13f ? __raw_spin_lock_init+0xf0/0xf0 ? to_kthread+0x59/0x85 worker_thread+0x593/0x70e kthread+0x346/0x35a ? drain_workqueue+0x31a/0x31a ? kthread_bind+0x4b/0x4b ret_from_fork+0x1f/0x30

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
22c66af08230a7030bdb88accffaec3424695631, 0115a66ebb44bd9127ccb58cf43ed23c795eb1f0, bc4b08383046f3282b6fa58cfcef05bd13e52b93, 5ccb04c6e1fb7b97fa2e1785b67c3a1cb3527ef7, 059c2c09f4b7f97711d0d8eaa0b9877f5e7d0a75, e1dee2c1de2b4dd00eb44004a4bda6326ed07b59, 98ae477ed1540d3acbbf44d88ee237ad64275158, f0c389e23e2475e5837716a629c81b7a9d90cc94, 0b9da4bde0d59c61b3675bdd80a05a726beb875a, 4.9.283, 4.14.247, 4.19.207, 5.4.146, 5.10.65, 4.4.284, 5.13.17, 5.14.4, 5.15, 0, 4.9.318, 4.14.283, 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.19

Timeline

Official Publish: February 26th, 2025
Last Modified: May 23rd, 2026
Added to House: July 21st, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.