CVEvulnerability
CVE-2026-98593
- Status
- Received
- Published
- 2026-10-18
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
s390/debug: Fix NULL pointer dereference in debug_info_copy()
When debug_register_static() fails, it clears areas, active_pages and
active_entries but leaves the area bounds unchanged. Copying such an
area, either by opening its view file or via debug_dump(), makes
debug_info_copy() dereference the NULL pointers.
Skip the copy loop when the source has no areas.
References
- https://git.kernel.org/stable/c/012bfcd5a51082d5a65f096dfb9ca652b5267965 git.kernel.org
- https://git.kernel.org/stable/c/13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225 git.kernel.org
- https://git.kernel.org/stable/c/2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b git.kernel.org
- https://git.kernel.org/stable/c/33f706884821da9cb55b650b7b1d4f2bdf800137 git.kernel.org
- https://git.kernel.org/stable/c/9c6af88fbefbe77608b77409df23a1617e28398c git.kernel.org
- https://git.kernel.org/stable/c/a19bede30f0da5ae56782edac62b5998a7434cba git.kernel.org
- https://git.kernel.org/stable/c/c593f38e1cdb92f87d01be4c4e5ac12417b1454b git.kernel.org