CVE-2026-98593
s390/debug: Fix NULL pointer dereference in debug_info_copy()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 18, 2026 |
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Affected Versions
Linux / Linux
d72541f945127b4873dace501406a1bc8cd8e1e9 < 13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225 d72541f945127b4873dace501406a1bc8cd8e1e9 < a19bede30f0da5ae56782edac62b5998a7434cba d72541f945127b4873dace501406a1bc8cd8e1e9 < 33f706884821da9cb55b650b7b1d4f2bdf800137 d72541f945127b4873dace501406a1bc8cd8e1e9 < 2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b d72541f945127b4873dace501406a1bc8cd8e1e9 < 9c6af88fbefbe77608b77409df23a1617e28398c d72541f945127b4873dace501406a1bc8cd8e1e9 < c593f38e1cdb92f87d01be4c4e5ac12417b1454b d72541f945127b4873dace501406a1bc8cd8e1e9 < 012bfcd5a51082d5a65f096dfb9ca652b5267965
Linux / Linux
5.15
References
git.kernel.org: https://git.kernel.org/stable/c/13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225 git.kernel.org: https://git.kernel.org/stable/c/a19bede30f0da5ae56782edac62b5998a7434cba git.kernel.org: https://git.kernel.org/stable/c/33f706884821da9cb55b650b7b1d4f2bdf800137 git.kernel.org: https://git.kernel.org/stable/c/2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b git.kernel.org: https://git.kernel.org/stable/c/9c6af88fbefbe77608b77409df23a1617e28398c git.kernel.org: https://git.kernel.org/stable/c/c593f38e1cdb92f87d01be4c4e5ac12417b1454b git.kernel.org: https://git.kernel.org/stable/c/012bfcd5a51082d5a65f096dfb9ca652b5267965