| Name | CVE-2023-31083 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3912-1, DLA-4008-1, DSA-5782-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | bullseye | 5.10.223-1 | vulnerable |
| bullseye (security) | 5.10.226-1 | fixed | |
| bookworm | 6.1.123-1 | fixed | |
| bookworm (security) | 6.1.119-1 | fixed | |
| trixie | 6.12.9-1 | fixed | |
| sid | 6.12.10-1 | fixed | |
| linux-6.1 (PTS) | bullseye (security) | 6.1.119-1~deb11u1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | bullseye | 5.10.226-1 | DLA-3912-1 | ||
| linux | source | bookworm | 6.1.112-1 | DSA-5782-1 | ||
| linux | source | (unstable) | 6.5.8-1 | |||
| linux-6.1 | source | bullseye | 6.1.119-1~deb11u1 | DLA-4008-1 |
https://lore.kernel.org/all/CA+UBctC3p49aTgzbVgkSZ2+TQcqq4fPDO7yZitFT5uBPDeCO2g@mail.gmail.com/