In the Linux kernel, the following vulnerability has been resolved:
tty: add the option to have a tty reject a new ldisc
... and use it to limit the virtual terminals to just N_TTY. They are
kind of special, and in particular, the "con_write()" routine violates
the "writes cannot sleep" rule that some ldiscs rely on.
This avoids the
BUG: sleeping function called from invalid context at kernel/printk/printk.c:2659
when N_GSM has been attached to a virtual console, and gsmld_write()
calls con_write() while holding a spinlock, and con_write() then tries
to get the console lock.
References
Configurations
Configuration 1 (hide)
|
History
03 Nov 2025, 22:17
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
06 Oct 2025, 20:45
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | NVD-CWE-noinfo | |
| First Time |
Linux
Linux linux Kernel |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| References | () https://git.kernel.org/stable/c/287b569a5b914903ba7c438a3c0dbc3410ebb409 - Patch | |
| References | () https://git.kernel.org/stable/c/3c6332f3bb1578b5b10ac2561247b1d6272ae937 - Patch | |
| References | () https://git.kernel.org/stable/c/5920ac19964f9e20181f63b410d9200ddbf8dc86 - Patch | |
| References | () https://git.kernel.org/stable/c/6bd23e0c2bb6c65d4f5754d1456bc9a4427fc59b - Patch |
Information
Published : 2024-07-12 13:15
Updated : 2025-11-03 22:17
NVD link : CVE-2024-40966
Mitre link : CVE-2024-40966
CVE.ORG link : CVE-2024-40966
JSON object : View
Products Affected
linux
- linux_kernel
CWE