CVE-2021-3640 (GCVE-0-2021-3640)
Vulnerability from cvelistv5
Published
2022-03-03 22:04
Modified
2024-08-03 17:01
Severity ?
CWE
  • CWE-362 - - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), CWE-416 - Use After Free.
Summary
A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.
References
Impacted products
Vendor Product Version
n/a kernel Version: Affects kernel v5.15.3 and prior, Fixed in v5.16-rc1 and above.
Show details on NVD website

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