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CVE-2024-49957 (GCVE-0-2024-49957)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:02 – Updated: 2026-05-11 20:42
VLAI
Title
ocfs2: fix null-ptr-deref when journal load failed.
Summary
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix null-ptr-deref when journal load failed. During the mounting process, if journal_reset() fails because of too short journal, then lead to jbd2_journal_load() fails with NULL j_sb_buffer. Subsequently, ocfs2_journal_shutdown() calls jbd2_journal_flush()->jbd2_cleanup_journal_tail()-> __jbd2_update_log_tail()->jbd2_journal_update_sb_log_tail() ->lock_buffer(journal->j_sb_buffer), resulting in a null-pointer dereference error. To resolve this issue, we should check the JBD2_LOADED flag to ensure the journal was properly loaded. Additionally, use journal instead of osb->journal directly to simplify the code.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:35 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 , < fd89d92c1140cee8f59de336cb37fa65e359c123 (git)
Affected: f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 , < 703b2c7e0798d263154dc8593dc2345f75dc077f (git)
Affected: f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 , < bf605ae98dab5c15c5b631d4d7f88898cb41b649 (git)
Affected: f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 , < ff55291fb36779819211b596da703389135f5b05 (git)
Affected: f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 , < 82dfdd1e31e774578f76ce6dc90c834f96403a0f (git)
Affected: f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 , < 86a89e75e9e4dfa768b97db466ad6bedf2e7ea5b (git)
Affected: f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 , < f60e94a83db799bde625ac8671a5b4a6354e7120 (git)
Affected: f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 , < 387bf565cc03e2e8c720b8b4798efea4aacb6962 (git)
Affected: f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 , < 5784d9fcfd43bd853654bb80c87ef293b9e8e80a (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.32
Unaffected: 0 , < 2.6.32 (semver)
Unaffected: 4.19.323 , ≤ 4.19.* (semver)
Unaffected: 5.4.285 , ≤ 5.4.* (semver)
Unaffected: 5.10.227 , ≤ 5.10.* (semver)
Unaffected: 5.15.168 , ≤ 5.15.* (semver)
Unaffected: 6.1.113 , ≤ 6.1.* (semver)
Unaffected: 6.6.55 , ≤ 6.6.* (semver)
Unaffected: 6.10.14 , ≤ 6.10.* (semver)
Unaffected: 6.11.3 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-49957\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T18:15:16.950\",\"lastModified\":\"2026-06-17T08:00:49.240\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nocfs2: fix null-ptr-deref when journal load failed.\\n\\nDuring the mounting process, if journal_reset() fails because of too short\\njournal, then lead to jbd2_journal_load() fails with NULL j_sb_buffer. \\nSubsequently, ocfs2_journal_shutdown() calls\\njbd2_journal_flush()-\u003ejbd2_cleanup_journal_tail()-\u003e\\n__jbd2_update_log_tail()-\u003ejbd2_journal_update_sb_log_tail()\\n-\u003elock_buffer(journal-\u003ej_sb_buffer), resulting in a null-pointer\\ndereference error.\\n\\nTo resolve this issue, we should check the JBD2_LOADED flag to ensure the\\njournal was properly loaded.  Additionally, use journal instead of\\nosb-\u003ejournal directly to simplify the code.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ocfs2: se corrige el error null-ptr-deref cuando falla la carga del diario. Durante el proceso de montaje, si journal_reset() falla debido a que el diario es demasiado corto, entonces provoca que jbd2_journal_load() falle con j_sb_buffer NULL. Posteriormente, ocfs2_journal_shutdown() llama a jbd2_journal_flush()-\u0026gt;jbd2_cleanup_journal_tail()-\u0026gt; __jbd2_update_log_tail()-\u0026gt;jbd2_journal_update_sb_log_tail() -\u0026gt;lock_buffer(journal-\u0026gt;j_sb_buffer), lo que da como resultado un error de desreferencia de puntero nulo. Para resolver este problema, debemos verificar el indicador JBD2_LOADED para asegurarnos de que el diario se carg\u00f3 correctamente. Adem\u00e1s, use journal en lugar de osb-\u0026gt;journal directamente para simplificar el c\u00f3digo.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/ocfs2/journal.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\",\"lessThan\":\"fd89d92c1140cee8f59de336cb37fa65e359c123\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\",\"lessThan\":\"703b2c7e0798d263154dc8593dc2345f75dc077f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\",\"lessThan\":\"bf605ae98dab5c15c5b631d4d7f88898cb41b649\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\",\"lessThan\":\"ff55291fb36779819211b596da703389135f5b05\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\",\"lessThan\":\"82dfdd1e31e774578f76ce6dc90c834f96403a0f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\",\"lessThan\":\"86a89e75e9e4dfa768b97db466ad6bedf2e7ea5b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\",\"lessThan\":\"f60e94a83db799bde625ac8671a5b4a6354e7120\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\",\"lessThan\":\"387bf565cc03e2e8c720b8b4798efea4aacb6962\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\",\"lessThan\":\"5784d9fcfd43bd853654bb80c87ef293b9e8e80a\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/ocfs2/journal.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.32\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.32\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.323\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.285\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.227\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.168\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.113\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.55\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10.14\",\"lessThanOrEqual\":\"6.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11.3\",\"lessThanOrEqual\":\"6.11.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-10-22T13:35:36.575300Z\",\"id\":\"CVE-2024-49957\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.32\",\"versionEndExcluding\":\"5.10.227\",\"matchCriteriaId\":\"BF903132-A3AF-4A91-AFA9-3C8A9C378FAE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.168\",\"matchCriteriaId\":\"4D51C05D-455B-4D8D-89E7-A58E140B864C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.113\",\"matchCriteriaId\":\"D01BD22E-ACD1-4618-9D01-6116570BE1EE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.55\",\"matchCriteriaId\":\"E90B9576-56C4-47BC-AAB0-C5B2D438F5D0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.10.14\",\"matchCriteriaId\":\"4C16BCE0-FFA0-4599-BE0A-1FD65101C021\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.11\",\"versionEndExcluding\":\"6.11.3\",\"matchCriteriaId\":\"54D9C704-D679-41A7-9C40-10A6B1E7FFE9\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/387bf565cc03e2e8c720b8b4798efea4aacb6962\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5784d9fcfd43bd853654bb80c87ef293b9e8e80a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/703b2c7e0798d263154dc8593dc2345f75dc077f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/82dfdd1e31e774578f76ce6dc90c834f96403a0f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/86a89e75e9e4dfa768b97db466ad6bedf2e7ea5b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bf605ae98dab5c15c5b631d4d7f88898cb41b649\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f60e94a83db799bde625ac8671a5b4a6354e7120\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fd89d92c1140cee8f59de336cb37fa65e359c123\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ff55291fb36779819211b596da703389135f5b05\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-13T15:33:41+00:00",
      "cve": "CVE-2024-49957",
      "id": "CVE-2024-49957",
      "initial_release_date": "2024-10-21T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ocfs2: fix null-ptr-deref when journal load failed.",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-49957.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-28T02:17:15Z",
      "cve": "CVE-2024-49957",
      "id": "CVE-2024-49957",
      "initial_release_date": "2024-10-25T03:06:59Z",
      "product_status:known_affected": "533",
      "product_status:known_not_affected": "51",
      "product_status:recommended": "706",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-49957",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-49957.json",
      "version": "68"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T22:23:36.709Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-49957\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:35:36.575300Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:35:39.743Z\"}}], \"cna\": {\"title\": \"ocfs2: fix null-ptr-deref when journal load failed.\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\", \"lessThan\": \"fd89d92c1140cee8f59de336cb37fa65e359c123\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\", \"lessThan\": \"703b2c7e0798d263154dc8593dc2345f75dc077f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\", \"lessThan\": \"bf605ae98dab5c15c5b631d4d7f88898cb41b649\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\", \"lessThan\": \"ff55291fb36779819211b596da703389135f5b05\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\", \"lessThan\": \"82dfdd1e31e774578f76ce6dc90c834f96403a0f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\", \"lessThan\": \"86a89e75e9e4dfa768b97db466ad6bedf2e7ea5b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\", \"lessThan\": \"f60e94a83db799bde625ac8671a5b4a6354e7120\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\", \"lessThan\": \"387bf565cc03e2e8c720b8b4798efea4aacb6962\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f6f50e28f0cb8d7bcdfaacc83129f005dede11b1\", \"lessThan\": \"5784d9fcfd43bd853654bb80c87ef293b9e8e80a\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/ocfs2/journal.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.32\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.32\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.323\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.285\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.227\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.168\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.113\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.55\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.14\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/ocfs2/journal.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/fd89d92c1140cee8f59de336cb37fa65e359c123\"}, {\"url\": \"https://git.kernel.org/stable/c/703b2c7e0798d263154dc8593dc2345f75dc077f\"}, {\"url\": \"https://git.kernel.org/stable/c/bf605ae98dab5c15c5b631d4d7f88898cb41b649\"}, {\"url\": \"https://git.kernel.org/stable/c/ff55291fb36779819211b596da703389135f5b05\"}, {\"url\": \"https://git.kernel.org/stable/c/82dfdd1e31e774578f76ce6dc90c834f96403a0f\"}, {\"url\": \"https://git.kernel.org/stable/c/86a89e75e9e4dfa768b97db466ad6bedf2e7ea5b\"}, {\"url\": \"https://git.kernel.org/stable/c/f60e94a83db799bde625ac8671a5b4a6354e7120\"}, {\"url\": \"https://git.kernel.org/stable/c/387bf565cc03e2e8c720b8b4798efea4aacb6962\"}, {\"url\": \"https://git.kernel.org/stable/c/5784d9fcfd43bd853654bb80c87ef293b9e8e80a\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nocfs2: fix null-ptr-deref when journal load failed.\\n\\nDuring the mounting process, if journal_reset() fails because of too short\\njournal, then lead to jbd2_journal_load() fails with NULL j_sb_buffer. \\nSubsequently, ocfs2_journal_shutdown() calls\\njbd2_journal_flush()-\u003ejbd2_cleanup_journal_tail()-\u003e\\n__jbd2_update_log_tail()-\u003ejbd2_journal_update_sb_log_tail()\\n-\u003elock_buffer(journal-\u003ej_sb_buffer), resulting in a null-pointer\\ndereference error.\\n\\nTo resolve this issue, we should check the JBD2_LOADED flag to ensure the\\njournal was properly loaded.  Additionally, use journal instead of\\nosb-\u003ejournal directly to simplify the code.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.323\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.285\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.227\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.168\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.113\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.55\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.14\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.3\", \"versionStartIncluding\": \"2.6.32\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"2.6.32\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:42:19.684Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-49957\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T22:23:36.709Z\", \"dateReserved\": \"2024-10-21T12:17:06.048Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T18:02:11.046Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.