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CVE-2024-56755 (GCVE-0-2024-56755)

Vulnerability from cvelistv5 – Published: 2024-12-29 11:30 – Updated: 2026-05-11 20:58

Title

netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING

Summary

In the Linux kernel, the following vulnerability has been resolved: netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING In fscache_create_volume(), there is a missing memory barrier between the bit-clearing operation and the wake-up operation. This may cause a situation where, after a wake-up, the bit-clearing operation hasn't been detected yet, leading to an indefinite wait. The triggering process is as follows: [cookie1] [cookie2] [volume_work] fscache_perform_lookup fscache_create_volume fscache_perform_lookup fscache_create_volume fscache_create_volume_work cachefiles_acquire_volume clear_and_wake_up_bit test_and_set_bit test_and_set_bit goto maybe_wait goto no_wait In the above process, cookie1 and cookie2 has the same volume. When cookie1 enters the -no_wait- process, it will clear the bit and wake up the waiting process. If a barrier is missing, it may cause cookie2 to remain in the -wait- process indefinitely. In commit 3288666c7256 ("fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work()"), barriers were added to similar operations in fscache_create_volume_work(), but fscache_create_volume() was missed. By combining the clear and wake operations into clear_and_wake_up_bit() to fix this issue.

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 19:57 UTC

CWE

CWE-401 - Missing Release of Memory after Effective Lifetime

Assigner

Linux mitre root

References

6 references

URL	Tags
https://git.kernel.org/stable/c/ddab02607eed9e415…
https://git.kernel.org/stable/c/539fabba965e119b9…
https://git.kernel.org/stable/c/8beb682cc9a0798a2…
https://git.kernel.org/stable/c/8cc1df3113cb71a0d…
https://git.kernel.org/stable/c/22f9400a6f3560629…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: bfa22da3ed652aa15acd4246fa13a0de6dbe4a59 , < ddab02607eed9e415dc62fde421d4329e5345315 (git) Affected: bfa22da3ed652aa15acd4246fa13a0de6dbe4a59 , < 539fabba965e119b98066fc6ba5257b5eaf4eda2 (git) Affected: bfa22da3ed652aa15acd4246fa13a0de6dbe4a59 , < 8beb682cc9a0798a280bbb95e3e41617237090b2 (git) Affected: bfa22da3ed652aa15acd4246fa13a0de6dbe4a59 , < 8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6 (git) Affected: bfa22da3ed652aa15acd4246fa13a0de6dbe4a59 , < 22f9400a6f3560629478e0a64247b8fcc811a24d (git)	guessed
Linux	Linux	Affected: 5.17 Unaffected: 0 , < 5.17 (semver) Unaffected: 6.1.120 , ≤ 6.1.* (semver) Unaffected: 6.6.64 , ≤ 6.6.* (semver) Unaffected: 6.11.11 , ≤ 6.11.* (semver) Unaffected: 6.12.2 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)	guessed

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{
  "containers": {
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                "id": "CVE-2024-56755",
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                {
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING\n\nIn fscache_create_volume(), there is a missing memory barrier between the\nbit-clearing operation and the wake-up operation. This may cause a\nsituation where, after a wake-up, the bit-clearing operation hasn\u0027t been\ndetected yet, leading to an indefinite wait. The triggering process is as\nfollows:\n\n  [cookie1]                [cookie2]                  [volume_work]\nfscache_perform_lookup\n  fscache_create_volume\n                        fscache_perform_lookup\n                          fscache_create_volume\n\t\t\t                        fscache_create_volume_work\n                                                  cachefiles_acquire_volume\n                                                  clear_and_wake_up_bit\n    test_and_set_bit\n                            test_and_set_bit\n                              goto maybe_wait\n      goto no_wait\n\nIn the above process, cookie1 and cookie2 has the same volume. When cookie1\nenters the -no_wait- process, it will clear the bit and wake up the waiting\nprocess. If a barrier is missing, it may cause cookie2 to remain in the\n-wait- process indefinitely.\n\nIn commit 3288666c7256 (\"fscache: Use clear_and_wake_up_bit() in\nfscache_create_volume_work()\"), barriers were added to similar operations\nin fscache_create_volume_work(), but fscache_create_volume() was missed.\n\nBy combining the clear and wake operations into clear_and_wake_up_bit() to\nfix this issue."
        }
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        },
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          "url": "https://git.kernel.org/stable/c/8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6"
        },
        {
          "url": "https://git.kernel.org/stable/c/22f9400a6f3560629478e0a64247b8fcc811a24d"
        }
      ],
      "title": "netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56755",
    "datePublished": "2024-12-29T11:30:19.795Z",
    "dateReserved": "2024-12-29T11:26:39.760Z",
    "dateUpdated": "2026-05-11T20:58:27.776Z",
    "state": "PUBLISHED"
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      "cve": "CVE-2024-56755",
      "date": "2026-09-13",
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      "source": "Microsoft CSAF VEX",
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      "title": "netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-56755\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-29T12:15:09.077\",\"lastModified\":\"2026-06-17T08:12:54.910\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING\\n\\nIn fscache_create_volume(), there is a missing memory barrier between the\\nbit-clearing operation and the wake-up operation. This may cause a\\nsituation where, after a wake-up, the bit-clearing operation hasn\u0027t been\\ndetected yet, leading to an indefinite wait. The triggering process is as\\nfollows:\\n\\n  [cookie1]                [cookie2]                  [volume_work]\\nfscache_perform_lookup\\n  fscache_create_volume\\n                        fscache_perform_lookup\\n                          fscache_create_volume\\n\\t\\t\\t                        fscache_create_volume_work\\n                                                  cachefiles_acquire_volume\\n                                                  clear_and_wake_up_bit\\n    test_and_set_bit\\n                            test_and_set_bit\\n                              goto maybe_wait\\n      goto no_wait\\n\\nIn the above process, cookie1 and cookie2 has the same volume. When cookie1\\nenters the -no_wait- process, it will clear the bit and wake up the waiting\\nprocess. If a barrier is missing, it may cause cookie2 to remain in the\\n-wait- process indefinitely.\\n\\nIn commit 3288666c7256 (\\\"fscache: Use clear_and_wake_up_bit() in\\nfscache_create_volume_work()\\\"), barriers were added to similar operations\\nin fscache_create_volume_work(), but fscache_create_volume() was missed.\\n\\nBy combining the clear and wake operations into clear_and_wake_up_bit() to\\nfix this issue.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfs/fscache: Agregar una barrera de memoria para FSCACHE_VOLUME_CREATING En fscache_create_volume(), falta una barrera de memoria entre la operaci\u00f3n de desinfecci\u00f3n de bits y la operaci\u00f3n de activaci\u00f3n. Esto puede provocar una situaci\u00f3n en la que, despu\u00e9s de una activaci\u00f3n, la operaci\u00f3n de desinfecci\u00f3n de bits a\u00fan no se haya detectado, lo que lleva a una espera indefinida. El proceso de activaci\u00f3n es el siguiente: [cookie1] [cookie2] [volume_work] fscache_perform_lookup fscache_create_volume fscache_perform_lookup fscache_create_volume fscache_create_volume_work cachefiles_acquire_volume clear_and_wake_up_bit test_and_set_bit test_and_set_bit goto maybe_wait goto no_wait En el proceso anterior, cookie1 y cookie2 tienen el mismo volumen. Cuando cookie1 ingresa al proceso -no_wait-, borrar\u00e1 el bit y activar\u00e1 el proceso en espera. Si falta una barrera, puede provocar que cookie2 permanezca en el proceso -wait- indefinidamente. En el commit 3288666c7256 (\\\"fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work()\\\"), se agregaron barreras a operaciones similares en fscache_create_volume_work(), pero se omiti\u00f3 fscache_create_volume(). Al combinar las operaciones clear y wake en clear_and_wake_up_bit() se solucion\u00f3 este problema.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/netfs/fscache_volume.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"bfa22da3ed652aa15acd4246fa13a0de6dbe4a59\",\"lessThan\":\"ddab02607eed9e415dc62fde421d4329e5345315\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"bfa22da3ed652aa15acd4246fa13a0de6dbe4a59\",\"lessThan\":\"539fabba965e119b98066fc6ba5257b5eaf4eda2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"bfa22da3ed652aa15acd4246fa13a0de6dbe4a59\",\"lessThan\":\"8beb682cc9a0798a280bbb95e3e41617237090b2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"bfa22da3ed652aa15acd4246fa13a0de6dbe4a59\",\"lessThan\":\"8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"bfa22da3ed652aa15acd4246fa13a0de6dbe4a59\",\"lessThan\":\"22f9400a6f3560629478e0a64247b8fcc811a24d\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/netfs/fscache_volume.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.17\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.17\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.120\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.64\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11.11\",\"lessThanOrEqual\":\"6.11.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.2\",\"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\":\"2025-10-01T19:57:15.044178Z\",\"id\":\"CVE-2024-56755\",\"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-401\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.17\",\"versionEndExcluding\":\"6.1.120\",\"matchCriteriaId\":\"DFA9B856-F80A-4A22-BC26-5EB65D554687\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.64\",\"matchCriteriaId\":\"CA16DEE3-ABEC-4449-9F4A-7A3DC4FC36C7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.11.11\",\"matchCriteriaId\":\"21434379-192D-472F-9B54-D45E3650E893\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.12\",\"versionEndExcluding\":\"6.12.2\",\"matchCriteriaId\":\"D8882B1B-2ABC-4838-AC1D-DBDBB5764776\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/22f9400a6f3560629478e0a64247b8fcc811a24d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/539fabba965e119b98066fc6ba5257b5eaf4eda2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8beb682cc9a0798a280bbb95e3e41617237090b2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ddab02607eed9e415dc62fde421d4329e5345315\",\"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\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T13:58:05+00:00",
      "cve": "CVE-2024-56755",
      "id": "CVE-2024-56755",
      "initial_release_date": "2024-12-29T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-56755.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T20:53:47.041Z\"}}, {\"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-2024-56755\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:57:15.044178Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-401\", \"description\": \"CWE-401 Missing Release of Memory after Effective Lifetime\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T15:49:53.408Z\"}}], \"cna\": {\"title\": \"netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"bfa22da3ed652aa15acd4246fa13a0de6dbe4a59\", \"lessThan\": \"ddab02607eed9e415dc62fde421d4329e5345315\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"bfa22da3ed652aa15acd4246fa13a0de6dbe4a59\", \"lessThan\": \"539fabba965e119b98066fc6ba5257b5eaf4eda2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"bfa22da3ed652aa15acd4246fa13a0de6dbe4a59\", \"lessThan\": \"8beb682cc9a0798a280bbb95e3e41617237090b2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"bfa22da3ed652aa15acd4246fa13a0de6dbe4a59\", \"lessThan\": \"8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"bfa22da3ed652aa15acd4246fa13a0de6dbe4a59\", \"lessThan\": \"22f9400a6f3560629478e0a64247b8fcc811a24d\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/netfs/fscache_volume.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.17\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.17\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.120\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.64\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/netfs/fscache_volume.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/ddab02607eed9e415dc62fde421d4329e5345315\"}, {\"url\": \"https://git.kernel.org/stable/c/539fabba965e119b98066fc6ba5257b5eaf4eda2\"}, {\"url\": \"https://git.kernel.org/stable/c/8beb682cc9a0798a280bbb95e3e41617237090b2\"}, {\"url\": \"https://git.kernel.org/stable/c/8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6\"}, {\"url\": \"https://git.kernel.org/stable/c/22f9400a6f3560629478e0a64247b8fcc811a24d\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING\\n\\nIn fscache_create_volume(), there is a missing memory barrier between the\\nbit-clearing operation and the wake-up operation. This may cause a\\nsituation where, after a wake-up, the bit-clearing operation hasn\u0027t been\\ndetected yet, leading to an indefinite wait. The triggering process is as\\nfollows:\\n\\n  [cookie1]                [cookie2]                  [volume_work]\\nfscache_perform_lookup\\n  fscache_create_volume\\n                        fscache_perform_lookup\\n                          fscache_create_volume\\n\\t\\t\\t                        fscache_create_volume_work\\n                                                  cachefiles_acquire_volume\\n                                                  clear_and_wake_up_bit\\n    test_and_set_bit\\n                            test_and_set_bit\\n                              goto maybe_wait\\n      goto no_wait\\n\\nIn the above process, cookie1 and cookie2 has the same volume. When cookie1\\nenters the -no_wait- process, it will clear the bit and wake up the waiting\\nprocess. If a barrier is missing, it may cause cookie2 to remain in the\\n-wait- process indefinitely.\\n\\nIn commit 3288666c7256 (\\\"fscache: Use clear_and_wake_up_bit() in\\nfscache_create_volume_work()\\\"), barriers were added to similar operations\\nin fscache_create_volume_work(), but fscache_create_volume() was missed.\\n\\nBy combining the clear and wake operations into clear_and_wake_up_bit() to\\nfix this issue.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.120\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.64\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.11\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.2\", \"versionStartIncluding\": \"5.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13\", \"versionStartIncluding\": \"5.17\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T10:03:58.542Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-56755\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T20:53:47.041Z\", \"dateReserved\": \"2024-12-29T11:26:39.760Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-12-29T11:30:19.795Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
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  }
}

FKIE_CVE-2024-56755

Vulnerability from fkie_nvd - Published: 2024-12-29 12:15 - Updated: 2026-06-17 08:12

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/22f9400a6f3560629478e0a64247b8fcc811a24d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/539fabba965e119b98066fc6ba5257b5eaf4eda2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8beb682cc9a0798a280bbb95e3e41617237090b2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ddab02607eed9e415dc62fde421d4329e5345315	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/netfs/fscache_volume.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ddab02607eed9e415dc62fde421d4329e5345315",
              "status": "affected",
              "version": "bfa22da3ed652aa15acd4246fa13a0de6dbe4a59",
              "versionType": "git"
            },
            {
              "lessThan": "539fabba965e119b98066fc6ba5257b5eaf4eda2",
              "status": "affected",
              "version": "bfa22da3ed652aa15acd4246fa13a0de6dbe4a59",
              "versionType": "git"
            },
            {
              "lessThan": "8beb682cc9a0798a280bbb95e3e41617237090b2",
              "status": "affected",
              "version": "bfa22da3ed652aa15acd4246fa13a0de6dbe4a59",
              "versionType": "git"
            },
            {
              "lessThan": "8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6",
              "status": "affected",
              "version": "bfa22da3ed652aa15acd4246fa13a0de6dbe4a59",
              "versionType": "git"
            },
            {
              "lessThan": "22f9400a6f3560629478e0a64247b8fcc811a24d",
              "status": "affected",
              "version": "bfa22da3ed652aa15acd4246fa13a0de6dbe4a59",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/netfs/fscache_volume.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DFA9B856-F80A-4A22-BC26-5EB65D554687",
              "versionEndExcluding": "6.1.120",
              "versionStartIncluding": "5.17",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CA16DEE3-ABEC-4449-9F4A-7A3DC4FC36C7",
              "versionEndExcluding": "6.6.64",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "21434379-192D-472F-9B54-D45E3650E893",
              "versionEndExcluding": "6.11.11",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D8882B1B-2ABC-4838-AC1D-DBDBB5764776",
              "versionEndExcluding": "6.12.2",
              "versionStartIncluding": "6.12",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
        }
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING\n\nIn fscache_create_volume(), there is a missing memory barrier between the\nbit-clearing operation and the wake-up operation. This may cause a\nsituation where, after a wake-up, the bit-clearing operation hasn\u0027t been\ndetected yet, leading to an indefinite wait. The triggering process is as\nfollows:\n\n  [cookie1]                [cookie2]                  [volume_work]\nfscache_perform_lookup\n  fscache_create_volume\n                        fscache_perform_lookup\n                          fscache_create_volume\n\t\t\t                        fscache_create_volume_work\n                                                  cachefiles_acquire_volume\n                                                  clear_and_wake_up_bit\n    test_and_set_bit\n                            test_and_set_bit\n                              goto maybe_wait\n      goto no_wait\n\nIn the above process, cookie1 and cookie2 has the same volume. When cookie1\nenters the -no_wait- process, it will clear the bit and wake up the waiting\nprocess. If a barrier is missing, it may cause cookie2 to remain in the\n-wait- process indefinitely.\n\nIn commit 3288666c7256 (\"fscache: Use clear_and_wake_up_bit() in\nfscache_create_volume_work()\"), barriers were added to similar operations\nin fscache_create_volume_work(), but fscache_create_volume() was missed.\n\nBy combining the clear and wake operations into clear_and_wake_up_bit() to\nfix this issue."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfs/fscache: Agregar una barrera de memoria para FSCACHE_VOLUME_CREATING En fscache_create_volume(), falta una barrera de memoria entre la operaci\u00f3n de desinfecci\u00f3n de bits y la operaci\u00f3n de activaci\u00f3n. Esto puede provocar una situaci\u00f3n en la que, despu\u00e9s de una activaci\u00f3n, la operaci\u00f3n de desinfecci\u00f3n de bits a\u00fan no se haya detectado, lo que lleva a una espera indefinida. El proceso de activaci\u00f3n es el siguiente: [cookie1] [cookie2] [volume_work] fscache_perform_lookup fscache_create_volume fscache_perform_lookup fscache_create_volume fscache_create_volume_work cachefiles_acquire_volume clear_and_wake_up_bit test_and_set_bit test_and_set_bit goto maybe_wait goto no_wait En el proceso anterior, cookie1 y cookie2 tienen el mismo volumen. Cuando cookie1 ingresa al proceso -no_wait-, borrar\u00e1 el bit y activar\u00e1 el proceso en espera. Si falta una barrera, puede provocar que cookie2 permanezca en el proceso -wait- indefinidamente. En el commit 3288666c7256 (\"fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work()\"), se agregaron barreras a operaciones similares en fscache_create_volume_work(), pero se omiti\u00f3 fscache_create_volume(). Al combinar las operaciones clear y wake en clear_and_wake_up_bit() se solucion\u00f3 este problema."
    }
  ],
  "id": "CVE-2024-56755",
  "lastModified": "2026-06-17T08:12:54.910",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-56755",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-10-01T19:57:15.044178Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-12-29T12:15:09.077",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/22f9400a6f3560629478e0a64247b8fcc811a24d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/539fabba965e119b98066fc6ba5257b5eaf4eda2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8beb682cc9a0798a280bbb95e3e41617237090b2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ddab02607eed9e415dc62fde421d4329e5345315"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

GHSA-2CXG-HJM3-XMVR

Vulnerability from github – Published: 2024-12-29 12:30 – Updated: 2025-11-03 21:32

Details

In the Linux kernel, the following vulnerability has been resolved:

netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING

In fscache_create_volume(), there is a missing memory barrier between the bit-clearing operation and the wake-up operation. This may cause a situation where, after a wake-up, the bit-clearing operation hasn't been detected yet, leading to an indefinite wait. The triggering process is as follows:

[cookie1] [cookie2] [volume_work] fscache_perform_lookup fscache_create_volume fscache_perform_lookup fscache_create_volume fscache_create_volume_work cachefiles_acquire_volume clear_and_wake_up_bit test_and_set_bit test_and_set_bit goto maybe_wait goto no_wait

In the above process, cookie1 and cookie2 has the same volume. When cookie1 enters the -no_wait- process, it will clear the bit and wake up the waiting process. If a barrier is missing, it may cause cookie2 to remain in the -wait- process indefinitely.

In commit 3288666c7256 ("fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work()"), barriers were added to similar operations in fscache_create_volume_work(), but fscache_create_volume() was missed.

By combining the clear and wake operations into clear_and_wake_up_bit() to fix this issue.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-56755"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-29T12:15:09Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING\n\nIn fscache_create_volume(), there is a missing memory barrier between the\nbit-clearing operation and the wake-up operation. This may cause a\nsituation where, after a wake-up, the bit-clearing operation hasn\u0027t been\ndetected yet, leading to an indefinite wait. The triggering process is as\nfollows:\n\n  [cookie1]                [cookie2]                  [volume_work]\nfscache_perform_lookup\n  fscache_create_volume\n                        fscache_perform_lookup\n                          fscache_create_volume\n\t\t\t                        fscache_create_volume_work\n                                                  cachefiles_acquire_volume\n                                                  clear_and_wake_up_bit\n    test_and_set_bit\n                            test_and_set_bit\n                              goto maybe_wait\n      goto no_wait\n\nIn the above process, cookie1 and cookie2 has the same volume. When cookie1\nenters the -no_wait- process, it will clear the bit and wake up the waiting\nprocess. If a barrier is missing, it may cause cookie2 to remain in the\n-wait- process indefinitely.\n\nIn commit 3288666c7256 (\"fscache: Use clear_and_wake_up_bit() in\nfscache_create_volume_work()\"), barriers were added to similar operations\nin fscache_create_volume_work(), but fscache_create_volume() was missed.\n\nBy combining the clear and wake operations into clear_and_wake_up_bit() to\nfix this issue.",
  "id": "GHSA-2cxg-hjm3-xmvr",
  "modified": "2025-11-03T21:32:02Z",
  "published": "2024-12-29T12:30:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56755"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/22f9400a6f3560629478e0a64247b8fcc811a24d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/539fabba965e119b98066fc6ba5257b5eaf4eda2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8beb682cc9a0798a280bbb95e3e41617237090b2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ddab02607eed9e415dc62fde421d4329e5345315"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

MSRC_CVE-2024-56755

Vulnerability from csaf_microsoft - Published: 2024-12-02 00:00 - Updated: 2025-01-29 00:00

Summary

netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING

Scope

1 vulnerability in this advisory, including CVE-2024-56755.

CVE-2024-56755

Fixed: 2 products Known affected: 2 products

https://learn.microsoft.com/en-us/azure/azure-linux/tutoria…

Open the full advisory

SUSE-SU-2025:0117-1

Vulnerability from csaf_suse - Published: 2025-01-15 09:07 - Updated: 2025-01-15 09:07

Summary

Security update for the Linux Kernel

Severity

Important

Scope

116 vulnerabilities in this advisory, including CVE-2024-56755.

CVE-2024-56755

2.5 (Low)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Recommended: 33 products

Open the full advisory

SUSE-SU-2025:0153-1

Vulnerability from csaf_suse - Published: 2025-01-17 09:14 - Updated: 2025-01-17 09:14

Summary

Security update for the Linux Kernel

Severity

Important

Scope

114 vulnerabilities in this advisory, including CVE-2024-56755.

CVE-2024-56755

2.5 (Low)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Recommended: 30 products

Open the full advisory

SUSE-SU-2025:0154-1

Vulnerability from csaf_suse - Published: 2025-01-17 09:15 - Updated: 2025-01-17 09:15

Summary

Security update for the Linux Kernel

Severity

Important

Scope

117 vulnerabilities in this advisory, including CVE-2024-56755.

CVE-2024-56755

2.5 (Low)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Recommended: 174 products

Open the full advisory

SUSE-SU-2025:0201-1

Vulnerability from csaf_suse - Published: 2025-03-11 13:41 - Updated: 2025-03-11 13:41

Summary

Security update for the Linux Kernel

Severity

Important

Scope

77 vulnerabilities in this advisory, including CVE-2024-56755.

CVE-2024-56755

2.5 (Low)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Recommended: 133 products

Open the full advisory

SUSE-SU-2025:0201-2

Vulnerability from csaf_suse - Published: 2025-03-11 13:41 - Updated: 2025-03-11 13:41

Summary

Security update for the Linux Kernel

Severity

Important

Scope

77 vulnerabilities in this advisory, including CVE-2024-56755.

CVE-2024-56755

2.5 (Low)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Recommended: 118 products

Open the full advisory

SUSE-SU-2025:0229-1

Vulnerability from csaf_suse - Published: 2025-01-24 10:10 - Updated: 2025-01-24 10:10

Summary

Security update for the Linux Kernel

Severity

Important

Scope

80 vulnerabilities in this advisory, including CVE-2024-56755.

CVE-2024-56755

2.5 (Low)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Recommended: 2 products

Open the full advisory

SUSE-SU-2025:0289-1

Vulnerability from csaf_suse - Published: 2025-01-29 16:11 - Updated: 2025-01-29 16:11

Summary

Security update for the Linux Kernel

Severity

Important

Scope

343 vulnerabilities in this advisory, including CVE-2024-56755.

CVE-2024-56755

2.5 (Low)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Recommended: 8 products

Open the full advisory

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2024-56755 (GCVE-0-2024-56755)

Tags

Sightings

Nomenclature