CVE ID:	CVE-2023-6546
Description:	A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2023-6546 RHBZ#2255498 https://bugzilla.redhat.com/show_bug.cgi?id=2255498 RHSA-2024:0930 https://access.redhat.com/errata/RHSA-2024:0930 RHSA-2024:0937 https://access.redhat.com/errata/RHSA-2024:0937 RHSA-2024:1018 https://access.redhat.com/errata/RHSA-2024:1018 RHSA-2024:1019 https://access.redhat.com/errata/RHSA-2024:1019 RHSA-2024:1055 https://access.redhat.com/errata/RHSA-2024:1055 RHSA-2024:1250 https://access.redhat.com/errata/RHSA-2024:1250 RHSA-2024:1253 https://access.redhat.com/errata/RHSA-2024:1253 RHSA-2024:1306 https://access.redhat.com/errata/RHSA-2024:1306 RHSA-2024:1607 https://access.redhat.com/errata/RHSA-2024:1607 RHSA-2024:1612 https://access.redhat.com/errata/RHSA-2024:1612 RHSA-2024:1614 https://access.redhat.com/errata/RHSA-2024:1614 RHSA-2024:2394 https://access.redhat.com/errata/RHSA-2024:2394 RHSA-2024:2621 https://access.redhat.com/errata/RHSA-2024:2621 RHSA-2024:2697 https://access.redhat.com/errata/RHSA-2024:2697 http://www.openwall.com/lists/oss-security/2024/04/10/18 http://www.openwall.com/lists/oss-security/2024/04/10/18 http://www.openwall.com/lists/oss-security/2024/04/10/21 http://www.openwall.com/lists/oss-security/2024/04/10/21 http://www.openwall.com/lists/oss-security/2024/04/11/7 http://www.openwall.com/lists/oss-security/2024/04/11/7 http://www.openwall.com/lists/oss-security/2024/04/11/9 http://www.openwall.com/lists/oss-security/2024/04/11/9 http://www.openwall.com/lists/oss-security/2024/04/12/1 http://www.openwall.com/lists/oss-security/2024/04/12/1 http://www.openwall.com/lists/oss-security/2024/04/12/2 http://www.openwall.com/lists/oss-security/2024/04/12/2 http://www.openwall.com/lists/oss-security/2024/04/16/2 http://www.openwall.com/lists/oss-security/2024/04/16/2 http://www.openwall.com/lists/oss-security/2024/04/17/1 http://www.openwall.com/lists/oss-security/2024/04/17/1 https://access.redhat.com/security/cve/CVE-2023-6546 https://access.redhat.com/security/cve/CVE-2023-6546 https://github.com/torvalds/linux/commit/3c4f8333b582487a2d1e02171f1465531cde53e3 https://github.com/torvalds/linux/commit/3c4f8333b582487a2d1e02171f1465531cde53e3 https://www.zerodayinitiative.com/advisories/ZDI-CAN-20527 https://www.zerodayinitiative.com/advisories/ZDI-CAN-20527