Race Condition Affecting kernel-rt-modules package, versions <0:4.18.0-553.rt7.342.el8_10
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTMODULES-5670224
- published 7 Jun 2023
- disclosed 17 Apr 2023
How to fix?
Upgrade Centos:8 kernel-rt-modules to version 0:4.18.0-553.rt7.342.el8_10 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules package and not the kernel-rt-modules package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2023-31083
- https://lore.kernel.org/all/CA+UBctC3p49aTgzbVgkSZ2+TQcqq4fPDO7yZitFT5uBPDeCO2g@mail.gmail.com/
- https://security.netapp.com/advisory/ntap-20230929-0003/
- https://lore.kernel.org/all/CA+UBctC3p49aTgzbVgkSZ2+TQcqq4fPDO7yZitFT5uBPDeCO2g%40mail.gmail.com/
- https://bugzilla.suse.com/show_bug.cgi?id=1210780
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9c33663af9ad115f90c076a1828129a3fbadea98