{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53048", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.381Z", "datePublished": "2026-06-24T16:29:54.268Z", "dateUpdated": "2026-06-24T16:29:54.268Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-24T16:29:54.268Z"}, "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": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/gfs2/log.c"], "versions": [{"version": "c3c5cfa3170c0940bc66a142859caac07d19b9d6", "lessThan": "cec55674354794eddb80b914f73a6bf9b7fc304a", "status": "affected", "versionType": "git"}, {"version": "5f6a84cfb33b34610623857bd93919dcb661e29b", "lessThan": "2fc4c868c9060f424fd4a7cacb0aec5082aba4de", "status": "affected", "versionType": "git"}, {"version": "3429ef5f50909cee9e498c50f0c499b9397116ce", "lessThan": "233a0945a4b1dbe3f38c30afb7d05b76c67f1193", "status": "affected", "versionType": "git"}, {"version": "35264909e9d1973ab9aaa2a1b07cda70f12bb828", "lessThan": "e15f16761594e80b15776980b27c35477655a135", "status": "affected", "versionType": "git"}, {"version": "35264909e9d1973ab9aaa2a1b07cda70f12bb828", "lessThan": "d8ffae016c4a78693fe1283335d0b6833a9c1366", "status": "affected", "versionType": "git"}, {"version": "35264909e9d1973ab9aaa2a1b07cda70f12bb828", "lessThan": "abd73229f0e886a91a16ea781ab656bd9b4d1ee8", "status": "affected", "versionType": "git"}, {"version": "35264909e9d1973ab9aaa2a1b07cda70f12bb828", "lessThan": "74b4dbb946060a3233604d91859a9abd3708141d", "status": "affected", "versionType": "git"}, {"version": "f54f9d5368a4e92ede7dd078a62788dae3a7c6ef", "status": "affected", "versionType": "git"}, {"version": "5.15.200", "lessThan": "5.15.209", "status": "affected", "versionType": "semver"}, {"version": "6.1.162", "lessThan": "6.1.175", "status": "affected", "versionType": "semver"}, {"version": "6.6.37", "lessThan": "6.6.141", "status": "affected", "versionType": "semver"}, {"version": "6.9.8", "lessThan": "6.10", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/gfs2/log.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.141", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.91", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "5.15.200", "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"}]}]}], "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"}], "title": "gfs2: prevent NULL pointer dereference during unmount", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: gfs2: prevent NULL pointer dereference during unmount", "id": "2492457", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492457"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel's gfs2 filesystem. During the unmount process, a NULL pointer dereference can occur when flushing outstanding glock work. This happens because `gfs2_log_flush()` is called when a critical data structure (`sdp->sd_jdesc`) has already been deallocated, and a subsequent dereference in `gfs2_log_release()` lacks a necessary NULL check. An attacker could potentially exploit this to cause a system crash, leading to a Denial of Service (DoS)."], "name": "CVE-2026-53048", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53048\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53048\nhttps://lore.kernel.org/linux-cve-announce/2026062459-CVE-2026-53048-9cd0@gregkh/T"], "threat_severity": "Low"}