CVE-2026-98593
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedOct 18, 2026
First seenOct 18, 2026
How to fix
Update
- Linux Linux13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225, a19bede30f0da5ae56782edac62b5998a7434cba, 33f706884821da9cb55b650b7b1d4f2bdf800137, 2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b, 9c6af88fbefbe77608b77409df23a1617e28398c, c593f38e1cdb92f87d01be4c4e5ac12417b1454b, 012bfcd5a51082d5a65f096dfb9ca652b5267965 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | d72541f945127b4873dace501406a1bc8cd8e1e9 ≤ v < 13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225, d72541f945127b4873dace501406a1bc8cd8e1e9 ≤ v < a19bede30f0da5ae56782edac62b5998a7434cba, d72541f945127b4873dace501406a1bc8cd8e1e9 ≤ v < 33f706884821da9cb55b650b7b1d4f2bdf800137, d72541f945127b4873dace501406a1bc8cd8e1e9 ≤ v < 2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b, d72541f945127b4873dace501406a1bc8cd8e1e9 ≤ v < 9c6af88fbefbe77608b77409df23a1617e28398c, d72541f945127b4873dace501406a1bc8cd8e1e9 ≤ v < c593f38e1cdb92f87d01be4c4e5ac12417b1454b, d72541f945127b4873dace501406a1bc8cd8e1e9 ≤ v < 012bfcd5a51082d5a65f096dfb9ca652b5267965, 5.15 | 13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225, a19bede30f0da5ae56782edac62b5998a7434cba, 33f706884821da9cb55b650b7b1d4f2bdf800137, 2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b, 9c6af88fbefbe77608b77409df23a1617e28398c, c593f38e1cdb92f87d01be4c4e5ac12417b1454b, 012bfcd5a51082d5a65f096dfb9ca652b5267965 |
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