vulnerability
Red Hat: CVE-2023-31083: kernel: race condition between HCIUARTSETPROTO and HCIUARTGETPROTO in hci_uart_tty_ioctl (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:H/Au:S/C:N/I:N/A:C) | Apr 24, 2023 | May 23, 2024 | Jul 9, 2025 |
Severity
4
CVSS
(AV:L/AC:H/Au:S/C:N/I:N/A:C)
Published
Apr 24, 2023
Added
May 23, 2024
Modified
Jul 9, 2025
Description
An issue was discovered in drivers/bluetooth/hci_ldisc.c in the Linux kernel 6.2. In hci_uart_tty_ioctl, there is a race condition between HCIUARTSETPROTO and HCIUARTGETPROTO. HCI_UART_PROTO_SET is set before hu->proto is set. A NULL pointer dereference may occur.
Solution(s)
no-fix-redhat-rpm-packageredhat-upgrade-kernelredhat-upgrade-kernel-rt
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