{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98593","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.359Z","datePublished":"2026-10-18T15:19:05.272Z","dateUpdated":"2026-10-19T09:22:18.775Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-19T09:22:18.775Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/debug: Fix NULL pointer dereference in debug_info_copy()\n\nWhen debug_register_static() fails, it clears areas, active_pages and\nactive_entries but leaves the area bounds unchanged. Copying such an\narea, either by opening its view file or via debug_dump(), makes\ndebug_info_copy() dereference the NULL pointers.\n\nSkip the copy loop when the source has no areas."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kernel/debug.c"],"versions":[{"version":"d72541f945127b4873dace501406a1bc8cd8e1e9","lessThan":"13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225","status":"affected","versionType":"git"},{"version":"d72541f945127b4873dace501406a1bc8cd8e1e9","lessThan":"a19bede30f0da5ae56782edac62b5998a7434cba","status":"affected","versionType":"git"},{"version":"d72541f945127b4873dace501406a1bc8cd8e1e9","lessThan":"33f706884821da9cb55b650b7b1d4f2bdf800137","status":"affected","versionType":"git"},{"version":"d72541f945127b4873dace501406a1bc8cd8e1e9","lessThan":"2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b","status":"affected","versionType":"git"},{"version":"d72541f945127b4873dace501406a1bc8cd8e1e9","lessThan":"9c6af88fbefbe77608b77409df23a1617e28398c","status":"affected","versionType":"git"},{"version":"d72541f945127b4873dace501406a1bc8cd8e1e9","lessThan":"c593f38e1cdb92f87d01be4c4e5ac12417b1454b","status":"affected","versionType":"git"},{"version":"d72541f945127b4873dace501406a1bc8cd8e1e9","lessThan":"012bfcd5a51082d5a65f096dfb9ca652b5267965","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kernel/debug.c"],"versions":[{"version":"5.15","status":"affected"},{"version":"0","lessThan":"5.15","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.55","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.9","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.18.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.2.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225"},{"url":"https://git.kernel.org/stable/c/a19bede30f0da5ae56782edac62b5998a7434cba"},{"url":"https://git.kernel.org/stable/c/33f706884821da9cb55b650b7b1d4f2bdf800137"},{"url":"https://git.kernel.org/stable/c/2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b"},{"url":"https://git.kernel.org/stable/c/9c6af88fbefbe77608b77409df23a1617e28398c"},{"url":"https://git.kernel.org/stable/c/c593f38e1cdb92f87d01be4c4e5ac12417b1454b"},{"url":"https://git.kernel.org/stable/c/012bfcd5a51082d5a65f096dfb9ca652b5267965"}],"title":"s390/debug: Fix NULL pointer dereference in debug_info_copy()","x_generator":{"engine":"bippy-1.2.0"}}}}