In the Linux kernel, the following vulnerability has been resolved:
xen: privcmd: Fix possible access to a freed kirqfd instance
Nothing prevents simultaneous ioctl calls to privcmd_irqfd_assign() and
privcmd_irqfd_deassign(). If that happens, it is possible that a kirqfd
created and added to the irqfds_list by privcmd_irqfd_assign() may get
removed by another thread executing privcmd_irqfd_deassign(), while the
former is still using it after dropping the locks.
This can lead to a situation where an already freed kirqfd instance may
be accessed and cause kernel oops.
Use SRCU locking to prevent the same, as is done for the KVM
implementation for irqfds.
References
Configurations
Configuration 1 (hide)
|
History
23 Sep 2024, 16:12
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/e997b357b13a7d95de31681fc54fcc34235fa527 - Patch | |
| References | () https://git.kernel.org/stable/c/611ff1b1ae989a7bcce3e2a8e132ee30e968c557 - Patch | |
| References | () https://git.kernel.org/stable/c/112fd2f02b308564724b8e81006c254d20945c4b - Patch | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | CWE-416 | |
| First Time |
Linux
Linux linux Kernel |
|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
18 Sep 2024, 08:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-09-18 08:15
Updated : 2024-09-23 16:12
NVD link : CVE-2024-46762
Mitre link : CVE-2024-46762
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-416
Use After Free