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CVE-2024-48881 (GCVE-0-2024-48881)

Vulnerability from cvelistv5 – Published: 2025-01-11 12:25 – Updated: 2026-05-23 15:53
VLAI
Title
bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again
Summary
In the Linux kernel, the following vulnerability has been resolved: bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations") leads a NULL pointer deference in cache_set_flush(). 1721 if (!IS_ERR_OR_NULL(c->root)) 1722 list_add(&c->root->list, &c->btree_cache); >From the above code in cache_set_flush(), if previous registration code fails before allocating c->root, it is possible c->root is NULL as what it is initialized. __bch_btree_node_alloc() never returns NULL but c->root is possible to be NULL at above line 1721. This patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:55 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0729029e647234fa1a94376b6edffec5c2cd75f6 , < 4379c5828492a4c2a651c8f826a01453bd2b80b0 (git)
Affected: db9439cef0b5efccf8021fe89f4953e0f901e85b , < 336e30f32ae7c043fde0f6fa21586ff30bea9fe2 (git)
Affected: 991e9c186a8ac6ab272a86e0ddc6f9733c38b867 , < fb5fee35bdd18316a84b5f30881a24e1415e1464 (git)
Affected: 68118c339c6e1e16ae017bef160dbe28a27ae9c8 , < 5202391970ffbf81975251b3526b890ba027b715 (git)
Affected: 028ddcac477b691dd9205c92f991cc15259d033e , < cc05aa2c0117e20fa25a3c0d915f98b8f2e78667 (git)
Affected: 028ddcac477b691dd9205c92f991cc15259d033e , < 5e0e913624bcd24f3de414475018d3023f060ee1 (git)
Affected: 028ddcac477b691dd9205c92f991cc15259d033e , < b2e382ae12a63560fca35050498e19e760adf8c0 (git)
Affected: fe75e8a0c20127a8dc95704f1a7ad6b82c9a0ef8 (git)
Affected: 0cabf9e164660e8d66c4810396046383a1110a69 (git)
Affected: 5.4.251 , < 5.4.287 (semver)
Affected: 5.10.188 , < 5.10.231 (semver)
Affected: 5.15.121 , < 5.15.174 (semver)
Affected: 6.1.39 , < 6.1.120 (semver)
Affected: 4.19.291 , < 4.20 (semver)
Affected: 6.4.4 , < 6.5 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 5.4.287 , ≤ 5.4.* (semver)
Unaffected: 5.10.231 , ≤ 5.10.* (semver)
Unaffected: 5.15.174 , ≤ 5.15.* (semver)
Unaffected: 6.1.120 , ≤ 6.1.* (semver)
Unaffected: 6.6.66 , ≤ 6.6.* (semver)
Unaffected: 6.12.5 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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      "percentile": "0.16694"
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbcache: revert replacing IS_ERR_OR_NULL with IS_ERR again\\n\\nCommit 028ddcac477b (\\\"bcache: Remove unnecessary NULL point check in\\nnode allocations\\\") leads a NULL pointer deference in cache_set_flush().\\n\\n1721         if (!IS_ERR_OR_NULL(c-\u003eroot))\\n1722                 list_add(\u0026c-\u003eroot-\u003elist, \u0026c-\u003ebtree_cache);\\n\\n\u003eFrom the above code in cache_set_flush(), if previous registration code\\nfails before allocating c-\u003eroot, it is possible c-\u003eroot is NULL as what\\nit is initialized. __bch_btree_node_alloc() never returns NULL but\\nc-\u003eroot is possible to be NULL at above line 1721.\\n\\nThis patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.\"}]",
      "id": "CVE-2024-48881",
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      "published": "2025-01-11T13:15:23.437",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/336e30f32ae7c043fde0f6fa21586ff30bea9fe2\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/4379c5828492a4c2a651c8f826a01453bd2b80b0\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/5202391970ffbf81975251b3526b890ba027b715\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/5e0e913624bcd24f3de414475018d3023f060ee1\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/b2e382ae12a63560fca35050498e19e760adf8c0\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/cc05aa2c0117e20fa25a3c0d915f98b8f2e78667\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/fb5fee35bdd18316a84b5f30881a24e1415e1464\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]",
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      "cve": "CVE-2024-48881",
      "id": "msrc_CVE-2024-48881",
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      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2024-48881.json",
      "version": "2"
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El commit 028ddcac477b (\\\"bcache: eliminar la comprobaci\u00f3n innecesaria del punto NULL en las asignaciones de nodos\\\") conduce a una deferencia de puntero NULL en cache_set_flush(). 1721 if (!IS_ERR_OR_NULL(c-\u0026gt;root)) 1722 list_add(\u0026amp;c-\u0026gt;root-\u0026gt;list, \u0026amp;c-\u0026gt;btree_cache); \u0026gt;Del c\u00f3digo anterior en cache_set_flush(), si el c\u00f3digo de registro anterior falla antes de asignar c-\u0026gt;root, es posible que c-\u0026gt;root sea NULL como lo que se inicializa. __bch_btree_node_alloc() nunca devuelve NULL, pero es posible que c-\u0026gt;root sea NULL en la l\u00ednea 1721 anterior. Este parche reemplaza IS_ERR() por IS_ERR_OR_NULL() para solucionar esto.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/md/bcache/super.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"0729029e647234fa1a94376b6edffec5c2cd75f6\",\"lessThan\":\"4379c5828492a4c2a651c8f826a01453bd2b80b0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"db9439cef0b5efccf8021fe89f4953e0f901e85b\",\"lessThan\":\"336e30f32ae7c043fde0f6fa21586ff30bea9fe2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"991e9c186a8ac6ab272a86e0ddc6f9733c38b867\",\"lessThan\":\"fb5fee35bdd18316a84b5f30881a24e1415e1464\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"68118c339c6e1e16ae017bef160dbe28a27ae9c8\",\"lessThan\":\"5202391970ffbf81975251b3526b890ba027b715\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"028ddcac477b691dd9205c92f991cc15259d033e\",\"lessThan\":\"cc05aa2c0117e20fa25a3c0d915f98b8f2e78667\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"028ddcac477b691dd9205c92f991cc15259d033e\",\"lessThan\":\"5e0e913624bcd24f3de414475018d3023f060ee1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"028ddcac477b691dd9205c92f991cc15259d033e\",\"lessThan\":\"b2e382ae12a63560fca35050498e19e760adf8c0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fe75e8a0c20127a8dc95704f1a7ad6b82c9a0ef8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0cabf9e164660e8d66c4810396046383a1110a69\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5.4.251\",\"lessThan\":\"5.4.287\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.10.188\",\"lessThan\":\"5.10.231\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.15.121\",\"lessThan\":\"5.15.174\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.1.39\",\"lessThan\":\"6.1.120\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.19.291\",\"lessThan\":\"4.20\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.4.4\",\"lessThan\":\"6.5\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/md/bcache/super.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.5\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.5\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.287\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.231\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.174\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.120\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.66\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.5\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.13\",\"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},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"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\":\"2025-10-01T19:55:37.185480Z\",\"id\":\"CVE-2024-48881\",\"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\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.19.291\",\"versionEndExcluding\":\"4.20\",\"matchCriteriaId\":\"562E7628-8B2C-4374-AD43-F402A8609611\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.4.251\",\"versionEndExcluding\":\"5.4.287\",\"matchCriteriaId\":\"83AA4770-AF17-46A7-A43C-5B45757A7299\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10.188\",\"versionEndExcluding\":\"5.10.231\",\"matchCriteriaId\":\"C6692BFB-2276-4A4B-A8EE-0162FF831E91\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.15.121\",\"versionEndExcluding\":\"5.15.174\",\"matchCriteriaId\":\"91EF4E8C-8E07-49AC-B2B1-1C4D11DA11FE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1.39\",\"versionEndExcluding\":\"6.1.120\",\"matchCriteriaId\":\"0B5D3825-64F7-4C30-BE1D-7CA92485F8A8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.4.4\",\"versionEndExcluding\":\"6.6.66\",\"matchCriteriaId\":\"0387259A-7982-4C8B-BB1D-5873FAB1DF5B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.5\",\"matchCriteriaId\":\"9501D045-7A94-42CA-8B03-821BE94A65B7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"62567B3C-6CEE-46D0-BC2E-B3717FBF7D13\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/336e30f32ae7c043fde0f6fa21586ff30bea9fe2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4379c5828492a4c2a651c8f826a01453bd2b80b0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5202391970ffbf81975251b3526b890ba027b715\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5e0e913624bcd24f3de414475018d3023f060ee1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b2e382ae12a63560fca35050498e19e760adf8c0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cc05aa2c0117e20fa25a3c0d915f98b8f2e78667\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fb5fee35bdd18316a84b5f30881a24e1415e1464\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/03/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": "2025-11-21T13:54:35+00:00",
      "cve": "CVE-2024-48881",
      "id": "CVE-2024-48881",
      "initial_release_date": "2024-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-48881.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T02:12:52Z",
      "cve": "CVE-2024-48881",
      "id": "CVE-2024-48881",
      "initial_release_date": "2025-01-12T00:17:58Z",
      "product_status:known_affected": "556",
      "product_status:known_not_affected": "230",
      "product_status:recommended": "384",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-48881",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-48881.json",
      "version": "68"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T20:40:59.667Z\"}}, {\"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-2024-48881\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:55:37.185480Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-476\", \"description\": \"CWE-476 NULL Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T15:52:49.931Z\"}}], \"cna\": {\"title\": \"bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"0729029e647234fa1a94376b6edffec5c2cd75f6\", \"lessThan\": \"4379c5828492a4c2a651c8f826a01453bd2b80b0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"db9439cef0b5efccf8021fe89f4953e0f901e85b\", \"lessThan\": \"336e30f32ae7c043fde0f6fa21586ff30bea9fe2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"991e9c186a8ac6ab272a86e0ddc6f9733c38b867\", \"lessThan\": \"fb5fee35bdd18316a84b5f30881a24e1415e1464\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"68118c339c6e1e16ae017bef160dbe28a27ae9c8\", \"lessThan\": \"5202391970ffbf81975251b3526b890ba027b715\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"028ddcac477b691dd9205c92f991cc15259d033e\", \"lessThan\": \"cc05aa2c0117e20fa25a3c0d915f98b8f2e78667\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"028ddcac477b691dd9205c92f991cc15259d033e\", \"lessThan\": \"5e0e913624bcd24f3de414475018d3023f060ee1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"028ddcac477b691dd9205c92f991cc15259d033e\", \"lessThan\": \"b2e382ae12a63560fca35050498e19e760adf8c0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fe75e8a0c20127a8dc95704f1a7ad6b82c9a0ef8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0cabf9e164660e8d66c4810396046383a1110a69\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5.4.251\", \"lessThan\": \"5.4.287\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.10.188\", \"lessThan\": \"5.10.231\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.15.121\", \"lessThan\": \"5.15.174\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"6.1.39\", \"lessThan\": \"6.1.120\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"4.19.291\", \"lessThan\": \"4.20\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"6.4.4\", \"lessThan\": \"6.5\", \"versionType\": \"semver\"}], \"programFiles\": [\"drivers/md/bcache/super.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.5\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.5\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.287\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.231\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.174\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.120\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.66\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/md/bcache/super.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/4379c5828492a4c2a651c8f826a01453bd2b80b0\"}, {\"url\": \"https://git.kernel.org/stable/c/336e30f32ae7c043fde0f6fa21586ff30bea9fe2\"}, {\"url\": \"https://git.kernel.org/stable/c/fb5fee35bdd18316a84b5f30881a24e1415e1464\"}, {\"url\": \"https://git.kernel.org/stable/c/5202391970ffbf81975251b3526b890ba027b715\"}, {\"url\": \"https://git.kernel.org/stable/c/cc05aa2c0117e20fa25a3c0d915f98b8f2e78667\"}, {\"url\": \"https://git.kernel.org/stable/c/5e0e913624bcd24f3de414475018d3023f060ee1\"}, {\"url\": \"https://git.kernel.org/stable/c/b2e382ae12a63560fca35050498e19e760adf8c0\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbcache: revert replacing IS_ERR_OR_NULL with IS_ERR again\\n\\nCommit 028ddcac477b (\\\"bcache: Remove unnecessary NULL point check in\\nnode allocations\\\") leads a NULL pointer deference in cache_set_flush().\\n\\n1721         if (!IS_ERR_OR_NULL(c-\u003eroot))\\n1722                 list_add(\u0026c-\u003eroot-\u003elist, \u0026c-\u003ebtree_cache);\\n\\n\u003eFrom the above code in cache_set_flush(), if previous registration code\\nfails before allocating c-\u003eroot, it is possible c-\u003eroot is NULL as what\\nit is initialized. __bch_btree_node_alloc() never returns NULL but\\nc-\u003eroot is possible to be NULL at above line 1721.\\n\\nThis patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.287\", \"versionStartIncluding\": \"5.4.251\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.231\", \"versionStartIncluding\": \"5.10.188\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.174\", \"versionStartIncluding\": \"5.15.121\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.120\", \"versionStartIncluding\": \"6.1.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.66\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.5\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.19.291\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.4.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-23T15:53:54.293Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-48881\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-23T15:53:54.293Z\", \"dateReserved\": \"2025-01-09T09:50:31.739Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-01-11T12:25:18.614Z\", \"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.