CVE-2023-6546
HIGH 1 PoC
MEDIUM
Priority: 0.05
BB Relevance:
39/100
Published: 2023-12-21
Modified: 2026-11-04
First seen: 2026-11-04
Status: active
Attack Surface
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
High
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
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.
Affected Software (10)
| Vendor | Product | Version |
|---|---|---|
| fedoraproject | fedora | 39 |
| linux | linux_kernel | < 6.5 |
| linux | linux_kernel | 6.5 |
| linux | linux_kernel | 6.5 |
| linux | linux_kernel | 6.5 |
| linux | linux_kernel | 6.5 |
| linux | linux_kernel | 6.5 |
| linux | linux_kernel | 6.5 |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux | 9.0 |
References & Advisories (31)
Third Party Advisory
Patch
Issue Tracking
Patch
Third Party Advisory
Showing 25 of 31 references