{"id":"CVE-2022-50402","state":"PUBLISHED","title":"drivers/md/md-bitmap: check the return value of md_bitmap_get_counter()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/md/md-bitmap: check the return value of md_bitmap_get_counter()\n\nCheck the return value of md_bitmap_get_counter() in case it returns\nNULL pointer, which will result in a null pointer dereference.\n\nv2: update the check to include other dereference","publishedAt":"2025-09-18T16:03:48.184Z","updatedAt":"2026-05-11T19:18:49.322Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"21e9aac9a74d30907d44bae0d24c036cb3819406","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"5d8d046f3dba939e74e2414f009df426700430ed","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"100caacfa0ed26e061954c90cdc835d42f709536","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"b621d17fe8b079574c773800148fb86907f3445d","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"ff3b7e12bc9f50de05c9d82b5b79e23e5be888f1","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"99bef41f8e8d1d52b5cb34f2f193f1346192752b","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"3bd548e5b819b8c0f2c9085de775c5c7bff9052f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/md-bitmap.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.5","versionType":"semver"},{"version":"4.19.270","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/md-bitmap.c"]}],"references":["https://git.kernel.org/stable/c/21e9aac9a74d30907d44bae0d24c036cb3819406","https://git.kernel.org/stable/c/5d8d046f3dba939e74e2414f009df426700430ed","https://git.kernel.org/stable/c/100caacfa0ed26e061954c90cdc835d42f709536","https://git.kernel.org/stable/c/b621d17fe8b079574c773800148fb86907f3445d","https://git.kernel.org/stable/c/ff3b7e12bc9f50de05c9d82b5b79e23e5be888f1","https://git.kernel.org/stable/c/99bef41f8e8d1d52b5cb34f2f193f1346192752b","https://git.kernel.org/stable/c/3bd548e5b819b8c0f2c9085de775c5c7bff9052f"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50402.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50402","state":"PUBLISHED","datePublished":"2025-09-18T16:03:48.184Z","dateUpdated":"2026-05-11T19:18:49.322Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-17T14:53:06.999Z"},"containers":{"cna":{"title":"drivers/md/md-bitmap: check the return value of md_bitmap_get_counter()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/md/md-bitmap: check the return value of md_bitmap_get_counter()\n\nCheck the return value of md_bitmap_get_counter() in case it returns\nNULL pointer, which will result in a null pointer dereference.\n\nv2: update the check to include other dereference"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"21e9aac9a74d30907d44bae0d24c036cb3819406","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"5d8d046f3dba939e74e2414f009df426700430ed","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"100caacfa0ed26e061954c90cdc835d42f709536","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"b621d17fe8b079574c773800148fb86907f3445d","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"ff3b7e12bc9f50de05c9d82b5b79e23e5be888f1","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"99bef41f8e8d1d52b5cb34f2f193f1346192752b","versionType":"git"},{"version":"d60b479d177a5735b6b4db6ee5280ef6653f50e7","status":"affected","lessThan":"3bd548e5b819b8c0f2c9085de775c5c7bff9052f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/md-bitmap.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.5","versionType":"semver"},{"version":"4.19.270","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/md-bitmap.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/21e9aac9a74d30907d44bae0d24c036cb3819406"},{"url":"https://git.kernel.org/stable/c/5d8d046f3dba939e74e2414f009df426700430ed"},{"url":"https://git.kernel.org/stable/c/100caacfa0ed26e061954c90cdc835d42f709536"},{"url":"https://git.kernel.org/stable/c/b621d17fe8b079574c773800148fb86907f3445d"},{"url":"https://git.kernel.org/stable/c/ff3b7e12bc9f50de05c9d82b5b79e23e5be888f1"},{"url":"https://git.kernel.org/stable/c/99bef41f8e8d1d52b5cb34f2f193f1346192752b"},{"url":"https://git.kernel.org/stable/c/3bd548e5b819b8c0f2c9085de775c5c7bff9052f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:18:49.322Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"4.19.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"5.4.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"5.10.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"5.15.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.0.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.1.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2022-50402","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-01-14T19:06:53.418034Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","type":"CWE","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-14T19:13:07.931Z"}}]}}}