CVE-2024-58094 (GCVE-0-2024-58094)

Vulnerability from cvelistv5 – Published: 2025-04-16 14:11 – Updated: 2026-08-05 11:47
VLAI
Title
jfs: add check read-only before truncation in jfs_truncate_nolock()
Summary
In the Linux kernel, the following vulnerability has been resolved: jfs: add check read-only before truncation in jfs_truncate_nolock() Added a check for "read-only" mode in the `jfs_truncate_nolock` function to avoid errors related to writing to a read-only filesystem. Call stack: block_write_begin() { jfs_write_failed() { jfs_truncate() { jfs_truncate_nolock() { txEnd() { ... log = JFS_SBI(tblk->sb)->log; // (log == NULL) If the `isReadOnly(ip)` condition is triggered in `jfs_truncate_nolock`, the function execution will stop, and no further data modification will occur. Instead, the `xtTruncate` function will be called with the "COMMIT_WMAP" flag, preventing modifications in "read-only" mode.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f605bc3e162f5c6faa9bd3602ce496053d06a4bb (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b5799dd77054c1ec49b0088b006c9908e256843b (git)
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Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 6.14.2 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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Show details on NVD website

{
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/jfs/inode.c"
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            },
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              "versionType": "original_commit_for_fix"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njfs: add check read-only before truncation in jfs_truncate_nolock()\n\nAdded a check for \"read-only\" mode in the `jfs_truncate_nolock`\nfunction to avoid errors related to writing to a read-only\nfilesystem.\n\nCall stack:\n\nblock_write_begin() {\n  jfs_write_failed() {\n    jfs_truncate() {\n      jfs_truncate_nolock() {\n        txEnd() {\n          ...\n          log = JFS_SBI(tblk-\u003esb)-\u003elog;\n          // (log == NULL)\n\nIf the `isReadOnly(ip)` condition is triggered in\n`jfs_truncate_nolock`, the function execution will stop, and no\nfurther data modification will occur. Instead, the `xtTruncate`\nfunction will be called with the \"COMMIT_WMAP\" flag, preventing\nmodifications in \"read-only\" mode."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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            {
              "lang": "en",
              "value": "AV:L - The vulnerability is triggered by a local write(2)/truncate on a file residing on a mounted JFS filesystem, reaching jfs_write_begin \u2192 jfs_write_failed \u2192 jfs_truncate_nolock. There is no network-facing consumer of this path.\nAC:L - With an fd held open across a forced remount-ro (mount -o remount,ro,force or SysRq emergency remount) the trigger is deterministic, and the remount,nointegrity path in jfs_reconfigure() tears down the log with no SB_RDONLY set and no writer hold-off, leaving a multi-second window an attacker can hammer with a write loop. No memory-layout or victim-state condition outside the attacker\u0027s influence is needed.\nPR:L - The memory-unsafe operation executes in the context of an ordinary unprivileged process\u0027s buffered write on a JFS file; the read-only/log-teardown transition is a routine system event (shutdown remount, emergency remount, integrity-flag remount, removable-media handling) rather than something the attacker must supply. Basic local user access with a writable fd on a JFS volume suffices.\nUI:N - No victim action is required \u2014 the attacker\u0027s own write(2) call drives the entire path through xtTruncate() and txEnd(0). The filesystem is already mounted in the targeted deployment scenario.\nS:U - The wild-pointer read/write, lock corruption and filesystem metadata damage all occur within the kernel\u0027s own security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - txEnd(0) dereferences TxBlock[0].sb, which is uninitialized vmalloc memory holding stale kernel data, and then chases it a second time (JFS_SBI(tblk-\u003esb)-\u003elog), while TXN_WAKEUP walks an uninitialized wait_queue_head\u0027s garbage list pointers. This uninitialized-memory-driven corruption is groomable and leverageable for kernel memory disclosure.\nI:H - Without the fix, xtTruncate() runs with COMMIT_PWMAP and mutates xtree metadata and the persistent block map of a filesystem that must not be modified \u2014 the fix exists precisely so that \"no further data modification will occur\". Additionally, `--log-\u003eactive` performs a decrement write through a pointer derived from uninitialized memory, and TxAnchor.freetid is corrupted to 0 so later transactions reuse the uninitialized TxBlock[0].\nA:H - The immediate observed result is a kernel oops (\"BUG: unable to handle kernel paging request\"/null-ptr-deref) in txEnd(). It occurs while the global TXN_LOCK spinlock, the inode commit_mutex and IWRITE_LOCK are held, so the locks are never released and every subsequent JFS operation on the system deadlocks."
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        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/b5799dd77054c1ec49b0088b006c9908e256843b"
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      ],
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-58094",
    "datePublished": "2025-04-16T14:11:43.298Z",
    "dateReserved": "2025-03-06T15:52:09.188Z",
    "dateUpdated": "2026-08-05T11:47:41.635Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-08-13",
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Instead, the `xtTruncate`\\nfunction will be called with the \\\"COMMIT_WMAP\\\" flag, preventing\\nmodifications in \\\"read-only\\\" mode.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jfs: a\u00f1adir comprobaci\u00f3n de solo lectura antes del truncamiento en jfs_truncate_nolock(). Se a\u00f1adi\u00f3 una comprobaci\u00f3n para el modo de \\\"solo lectura\\\" en la funci\u00f3n `jfs_truncate_nolock` para evitar errores relacionados con la escritura en un sistema de archivos de solo lectura. Pila de llamadas: block_write_begin() { jfs_write_failed() { jfs_truncate() { jfs_truncate_nolock() { txEnd() { ... log = JFS_SBI(tblk-\u0026gt;sb)-\u0026gt;log; // (log == NULL) Si se activa la condici\u00f3n `isReadOnly(ip)` en `jfs_truncate_nolock`, la ejecuci\u00f3n de la funci\u00f3n se detendr\u00e1 y no se realizar\u00e1n m\u00e1s modificaciones de datos. En su lugar, se llamar\u00e1 a la funci\u00f3n `xtTruncate` con el indicador \\\"COMMIT_WMAP\\\", lo que impide las modificaciones en modo de \\\"solo lectura\\\".\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/jfs/inode.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"f605bc3e162f5c6faa9bd3602ce496053d06a4bb\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"b5799dd77054c1ec49b0088b006c9908e256843b\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/jfs/inode.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.14.2\",\"lessThanOrEqual\":\"6.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.15\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"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}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.13\",\"versionEndExcluding\":\"6.14.2\",\"matchCriteriaId\":\"52F2BE8D-57F3-4A09-90F4-3B7CE68D9CD9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"6F62EECE-8FB1-4D57-85D8-CB9E23CF313C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4F76C298-81DC-43E4-8FC9-DC005A2116EF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"0AB349B2-3F78-4197-882B-90ADB3BF645A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"6AC88830-A9BC-4607-B572-A4B502FC9FD0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"476CB3A5-D022-4F13-AAEF-CB6A5785516A\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/b5799dd77054c1ec49b0088b006c9908e256843b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f605bc3e162f5c6faa9bd3602ce496053d06a4bb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T14:06:48+00:00",
      "cve": "CVE-2024-58094",
      "id": "CVE-2024-58094",
      "initial_release_date": "2024-01-01T00:00:00+00:00",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "260",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: jfs: add check read-only before truncation in jfs_truncate_nolock()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-58094.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-31T01:23:04Z",
      "cve": "CVE-2024-58094",
      "id": "CVE-2024-58094",
      "initial_release_date": "2025-04-18T23:21:55Z",
      "product_status:known_affected": "394",
      "product_status:known_not_affected": "367",
      "product_status:recommended": "365",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-58094",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-58094.json",
      "version": "39"
    }
  }
}



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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

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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.

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