CVE-2026-98593s390/debug: Fix NULL pointer dereference in debug_info_copy()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | from d72541f945127b4873dace501406a1bc8cd8e1e9 before 13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225; from d72541f945127b4873dace501406a1bc8cd8e1e9 before a19bede30f0da5ae56782edac62b5998a7434cba; from d72541f945127b4873dace501406a1bc8cd8e1e9 before 33f706884821da9cb55b650b7b1d4f2bdf800137; from d72541f945127b4873dace501406a1bc8cd8e1e9 before 2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b; from d72541f945127b4873dace501406a1bc8cd8e1e9 before 9c6af88fbefbe77608b77409df23a1617e28398c; from d72541f945127b4873dace501406a1bc8cd8e1e9 before c593f38e1cdb92f87d01be4c4e5ac12417b1454b; from d72541f945127b4873dace501406a1bc8cd8e1e9 before 012bfcd5a51082d5a65f096dfb9ca652b5267965 | CNA record |
References
- https://git.kernel.org/stable/c/13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225
- https://git.kernel.org/stable/c/a19bede30f0da5ae56782edac62b5998a7434cba
- https://git.kernel.org/stable/c/33f706884821da9cb55b650b7b1d4f2bdf800137
- https://git.kernel.org/stable/c/2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b
- https://git.kernel.org/stable/c/9c6af88fbefbe77608b77409df23a1617e28398c
- https://git.kernel.org/stable/c/c593f38e1cdb92f87d01be4c4e5ac12417b1454b
- https://git.kernel.org/stable/c/012bfcd5a51082d5a65f096dfb9ca652b5267965
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.