s390/debug: Fix NULL pointer dereference in debug_info_copy()
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.
CVE-2026-98593
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98593
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
"lessThan": "13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225",
"versionType": "git"
},
{
"status": "affected",
"version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
"lessThan": "a19bede30f0da5ae56782edac62b5998a7434cba",
"versionType": "git"
},
{
"status": "affected",
"version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
"lessThan": "33f706884821da9cb55b650b7b1d4f2bdf800137",
"versionType": "git"
},
{
"status": "affected",
"version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
"lessThan": "2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b",
"versionType": "git"
},
{
"status": "affected",
"version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
"lessThan": "9c6af88fbefbe77608b77409df23a1617e28398c",
"versionType": "git"
},
{
"status": "affected",
"version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
"lessThan": "c593f38e1cdb92f87d01be4c4e5ac12417b1454b",
"versionType": "git"
},
{
"status": "affected",
"version": "d72541f945127b4873dace501406a1bc8cd8e1e9",
"lessThan": "012bfcd5a51082d5a65f096dfb9ca652b5267965",
"versionType": "git"
}
],
"programFiles": [
"arch/s390/kernel/debug.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.55",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/s390/kernel/debug.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98593
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38615 · Revision 1
- Added to Heist Feed
- Publisher date