CVE-2022-49474

HIGH EPSS 17.1%
Published Feb 26, 20251y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

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

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
17.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 10

VendorProductVersionRange
linuxlinux_kernel*≥4.4.284  –  <4.5
linuxlinux_kernel*≥4.9.238  –  <4.9.318
linuxlinux_kernel*≥4.14.247  –  <4.14.283
linuxlinux_kernel*≥4.19.207  –  <4.19.247
linuxlinux_kernel*≥5.4.146  –  <5.4.198
linuxlinux_kernel*≥5.10.65  –  <5.10.121
linuxlinux_kernel*≥5.13.17  –  <5.14
linuxlinux_kernel*≥5.14.4  –  <5.15.46
linuxlinux_kernel*≥5.16  –  <5.17.14
linuxlinux_kernel*≥5.18  –  <5.18.3

References 9

  • git.kernel.org https://git.kernel.org/stable/c/36c644c63bfcaee2d3a426f45e89a9cd09799318
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/390d82733a953c1fabf3de9c9618091a7a9c90a6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/537f619dea4e3fa8ed1f8f938abffe3615794bcc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/65d347cb39e2e6bd0c2a745ad7c928998ebb0162
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6f55fac0af3531cf60d11369454c41f5fc81ab3f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7aa1e7d15f8a5b65f67bacb100d8fc033b21efa2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7d61dbd7311ab978d8ddac1749a758de4de00374
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/99df16007f4bbf9abfc3478cb17d10f0d7f8906e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9de3dc09e56f8deacd2bdbf4cecb71e11a312405
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/36c644c63bfcaee2d3a426f45e89a9cd09799318
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/390d82733a953c1fabf3de9c9618091a7a9c90a6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/537f619dea4e3fa8ed1f8f938abffe3615794bcc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/65d347cb39e2e6bd0c2a745ad7c928998ebb0162
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6f55fac0af3531cf60d11369454c41f5fc81ab3f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7aa1e7d15f8a5b65f67bacb100d8fc033b21efa2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7d61dbd7311ab978d8ddac1749a758de4de00374
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/99df16007f4bbf9abfc3478cb17d10f0d7f8906e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9de3dc09e56f8deacd2bdbf4cecb71e11a312405
    Patch