medium4.7
CVE-2023-31083
An issue was discovered in drivers/bluetooth/hci_ldisc.c in the Linux kernel 6.2.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | Version 6.2 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.suse.com/show_bug.cgi?id=1210780
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9c33663af9ad115f90c076a1828129a3fbadea98
- https://lore.kernel.org/all/CA+UBctC3p49aTgzbVgkSZ2+TQcqq4fPDO7yZitFT5uBPDeCO2g%40mail.gmail.com/
- https://security.netapp.com/advisory/ntap-20230929-0003/
- https://bugzilla.suse.com/show_bug.cgi?id=1210780
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9c33663af9ad115f90c076a1828129a3fbadea98
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lore.kernel.org/all/CA+UBctC3p49aTgzbVgkSZ2+TQcqq4fPDO7yZitFT5uBPDeCO2g%40mail.gmail.com/
- https://security.netapp.com/advisory/ntap-20230929-0003/