{"id":"CVE-2026-53048","state":"PUBLISHED","title":"gfs2: prevent NULL pointer dereference during unmount","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: prevent NULL pointer dereference during unmount\n\nWhen flushing out outstanding glock work during an unmount, gfs2_log_flush()\ncan be called when sdp->sd_jdesc has already been deallocated and sdp->sd_jdesc\nis NULL.  Commit 35264909e9d1 (\"gfs2: Fix NULL pointer dereference in\ngfs2_log_flush\") added a check for that to gfs2_log_flush() itself, but it\nmissed the sdp->sd_jdesc dereference in gfs2_log_release().  Fix that.","publishedAt":"2026-06-24T16:29:54.268Z","updatedAt":"2026-06-24T16:29:54.268Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c3c5cfa3170c0940bc66a142859caac07d19b9d6","status":"affected","lessThan":"cec55674354794eddb80b914f73a6bf9b7fc304a","versionType":"git"},{"version":"5f6a84cfb33b34610623857bd93919dcb661e29b","status":"affected","lessThan":"2fc4c868c9060f424fd4a7cacb0aec5082aba4de","versionType":"git"},{"version":"3429ef5f50909cee9e498c50f0c499b9397116ce","status":"affected","lessThan":"233a0945a4b1dbe3f38c30afb7d05b76c67f1193","versionType":"git"},{"version":"35264909e9d1973ab9aaa2a1b07cda70f12bb828","status":"affected","lessThan":"e15f16761594e80b15776980b27c35477655a135","versionType":"git"},{"version":"35264909e9d1973ab9aaa2a1b07cda70f12bb828","status":"affected","lessThan":"d8ffae016c4a78693fe1283335d0b6833a9c1366","versionType":"git"},{"version":"35264909e9d1973ab9aaa2a1b07cda70f12bb828","status":"affected","lessThan":"abd73229f0e886a91a16ea781ab656bd9b4d1ee8","versionType":"git"},{"version":"35264909e9d1973ab9aaa2a1b07cda70f12bb828","status":"affected","lessThan":"74b4dbb946060a3233604d91859a9abd3708141d","versionType":"git"},{"version":"f54f9d5368a4e92ede7dd078a62788dae3a7c6ef","status":"affected","versionType":"git"},{"version":"5.15.200","status":"affected","lessThan":"5.15.209","versionType":"semver"},{"version":"6.1.162","status":"affected","lessThan":"6.1.175","versionType":"semver"},{"version":"6.6.37","status":"affected","lessThan":"6.6.141","versionType":"semver"},{"version":"6.9.8","status":"affected","lessThan":"6.10","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/gfs2/log.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.141","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.91","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/gfs2/log.c"]}],"references":["https://git.kernel.org/stable/c/cec55674354794eddb80b914f73a6bf9b7fc304a","https://git.kernel.org/stable/c/2fc4c868c9060f424fd4a7cacb0aec5082aba4de","https://git.kernel.org/stable/c/233a0945a4b1dbe3f38c30afb7d05b76c67f1193","https://git.kernel.org/stable/c/e15f16761594e80b15776980b27c35477655a135","https://git.kernel.org/stable/c/d8ffae016c4a78693fe1283335d0b6833a9c1366","https://git.kernel.org/stable/c/abd73229f0e886a91a16ea781ab656bd9b4d1ee8","https://git.kernel.org/stable/c/74b4dbb946060a3233604d91859a9abd3708141d"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53048.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53048","state":"PUBLISHED","datePublished":"2026-06-24T16:29:54.268Z","dateUpdated":"2026-06-24T16:29:54.268Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.381Z"},"containers":{"cna":{"title":"gfs2: prevent NULL pointer dereference during unmount","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: prevent NULL pointer dereference during unmount\n\nWhen flushing out outstanding glock work during an unmount, gfs2_log_flush()\ncan be called when sdp->sd_jdesc has already been deallocated and sdp->sd_jdesc\nis NULL.  Commit 35264909e9d1 (\"gfs2: Fix NULL pointer dereference in\ngfs2_log_flush\") added a check for that to gfs2_log_flush() itself, but it\nmissed the sdp->sd_jdesc dereference in gfs2_log_release().  Fix that."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c3c5cfa3170c0940bc66a142859caac07d19b9d6","status":"affected","lessThan":"cec55674354794eddb80b914f73a6bf9b7fc304a","versionType":"git"},{"version":"5f6a84cfb33b34610623857bd93919dcb661e29b","status":"affected","lessThan":"2fc4c868c9060f424fd4a7cacb0aec5082aba4de","versionType":"git"},{"version":"3429ef5f50909cee9e498c50f0c499b9397116ce","status":"affected","lessThan":"233a0945a4b1dbe3f38c30afb7d05b76c67f1193","versionType":"git"},{"version":"35264909e9d1973ab9aaa2a1b07cda70f12bb828","status":"affected","lessThan":"e15f16761594e80b15776980b27c35477655a135","versionType":"git"},{"version":"35264909e9d1973ab9aaa2a1b07cda70f12bb828","status":"affected","lessThan":"d8ffae016c4a78693fe1283335d0b6833a9c1366","versionType":"git"},{"version":"35264909e9d1973ab9aaa2a1b07cda70f12bb828","status":"affected","lessThan":"abd73229f0e886a91a16ea781ab656bd9b4d1ee8","versionType":"git"},{"version":"35264909e9d1973ab9aaa2a1b07cda70f12bb828","status":"affected","lessThan":"74b4dbb946060a3233604d91859a9abd3708141d","versionType":"git"},{"version":"f54f9d5368a4e92ede7dd078a62788dae3a7c6ef","status":"affected","versionType":"git"},{"version":"5.15.200","status":"affected","lessThan":"5.15.209","versionType":"semver"},{"version":"6.1.162","status":"affected","lessThan":"6.1.175","versionType":"semver"},{"version":"6.6.37","status":"affected","lessThan":"6.6.141","versionType":"semver"},{"version":"6.9.8","status":"affected","lessThan":"6.10","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/gfs2/log.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.141","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.91","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/gfs2/log.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/cec55674354794eddb80b914f73a6bf9b7fc304a"},{"url":"https://git.kernel.org/stable/c/2fc4c868c9060f424fd4a7cacb0aec5082aba4de"},{"url":"https://git.kernel.org/stable/c/233a0945a4b1dbe3f38c30afb7d05b76c67f1193"},{"url":"https://git.kernel.org/stable/c/e15f16761594e80b15776980b27c35477655a135"},{"url":"https://git.kernel.org/stable/c/d8ffae016c4a78693fe1283335d0b6833a9c1366"},{"url":"https://git.kernel.org/stable/c/abd73229f0e886a91a16ea781ab656bd9b4d1ee8"},{"url":"https://git.kernel.org/stable/c/74b4dbb946060a3233604d91859a9abd3708141d"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-24T16:29:54.268Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.200","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.162","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.37","versionEndExcluding":"6.6.141"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.12.91"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.18.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9.8"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}