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.
CVSS
No CVSS.
References
Configurations
No configuration.
History
No history.
Information
Published : 2024-07-12 13:15
Updated : 2024-07-12 16:34
NVD link : CVE-2024-40966
Mitre link : CVE-2024-40966
CVE.ORG link : CVE-2024-40966
JSON object : View
Products Affected
No product.
CWE
No CWE.