{"id":"CVE-2023-52448","state":"PUBLISHED","title":"gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump\n\nSyzkaller has reported a NULL pointer dereference when accessing\nrgd->rd_rgl in gfs2_rgrp_dump().  This can happen when creating\nrgd->rd_gl fails in read_rindex_entry().  Add a NULL pointer check in\ngfs2_rgrp_dump() to prevent that.","publishedAt":"2024-02-22T16:21:39.915Z","updatedAt":"2026-05-11T19:27:31.761Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"efc8ef87ab9185a23d5676f2f7d986022d91bcde","versionType":"git"},{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"5c28478af371a1c3fdb570ca67f110e1ae60fc37","versionType":"git"},{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"ee0586d73cbaf0e7058bc640d62a9daf2dfa9178","versionType":"git"},{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"d69d7804cf9e2ba171a27e5f98bc266f13d0414a","versionType":"git"},{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"067a7c48c2c70f05f9460d6f0e8423e234729f05","versionType":"git"},{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"c323efd620c741168c8e0cc6fc0be04ab57e331a","versionType":"git"},{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"8877243beafa7c6bfc42022cbfdf9e39b25bd4fa","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/gfs2/rgrp.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.20","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.20","versionType":"semver"},{"version":"5.4.268","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.209","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.148","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.75","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.14","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.2","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/gfs2/rgrp.c"]}],"references":["https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcde","https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37","https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178","https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414a","https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05","https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331a","https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa","https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/52xxx/CVE-2023-52448.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52448","state":"PUBLISHED","datePublished":"2024-02-22T16:21:39.915Z","dateUpdated":"2026-05-11T19:27:31.761Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-02-20T12:30:33.292Z"},"containers":{"cna":{"title":"gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump\n\nSyzkaller has reported a NULL pointer dereference when accessing\nrgd->rd_rgl in gfs2_rgrp_dump().  This can happen when creating\nrgd->rd_gl fails in read_rindex_entry().  Add a NULL pointer check in\ngfs2_rgrp_dump() to prevent that."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"efc8ef87ab9185a23d5676f2f7d986022d91bcde","versionType":"git"},{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"5c28478af371a1c3fdb570ca67f110e1ae60fc37","versionType":"git"},{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"ee0586d73cbaf0e7058bc640d62a9daf2dfa9178","versionType":"git"},{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"d69d7804cf9e2ba171a27e5f98bc266f13d0414a","versionType":"git"},{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"067a7c48c2c70f05f9460d6f0e8423e234729f05","versionType":"git"},{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"c323efd620c741168c8e0cc6fc0be04ab57e331a","versionType":"git"},{"version":"72244b6bc752b5c496f09de9a13c18adc314a53c","status":"affected","lessThan":"8877243beafa7c6bfc42022cbfdf9e39b25bd4fa","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/gfs2/rgrp.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.20","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.20","versionType":"semver"},{"version":"5.4.268","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.209","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.148","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.75","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.14","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.2","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/gfs2/rgrp.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcde"},{"url":"https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37"},{"url":"https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178"},{"url":"https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414a"},{"url":"https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05"},{"url":"https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331a"},{"url":"https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:27:31.761Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.4.268"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.10.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.15.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.1.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.6.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.7.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.8"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2023-52448","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-02-28T18:52:46.347708Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-07-05T17:21:58.504Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/efc8ef87ab9185a23d5676f2f7d986022d91bcde","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/ee0586d73cbaf0e7058bc640d62a9daf2dfa9178","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T22:55:41.668Z"}}]}}}