{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-42315", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-30T07:40:12.278Z", "datePublished": "2024-08-17T09:09:23.779Z", "dateUpdated": "2025-11-03T20:38:38.291Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:26:35.431Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: fix potential deadlock on __exfat_get_dentry_set\n\nWhen accessing a file with more entries than ES_MAX_ENTRY_NUM, the bh-array\nis allocated in __exfat_get_entry_set. The problem is that the bh-array is\nallocated with GFP_KERNEL. It does not make sense. In the following cases,\na deadlock for sbi->s_lock between the two processes may occur.\n\n CPU0 CPU1\n ---- ----\n kswapd\n balance_pgdat\n lock(fs_reclaim)\n exfat_iterate\n lock(&sbi->s_lock)\n exfat_readdir\n exfat_get_uniname_from_ext_entry\n exfat_get_dentry_set\n __exfat_get_dentry_set\n kmalloc_array\n ...\n lock(fs_reclaim)\n ...\n evict\n exfat_evict_inode\n lock(&sbi->s_lock)\n\nTo fix this, let's allocate bh-array with GFP_NOFS."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/exfat/dir.c"], "versions": [{"version": "bd3bdb9e0d656f760b11d0c638d35d7f7068144d", "lessThan": "632fb232b6bbf8277edcbe9ecd4b4d98ecb122eb", "status": "affected", "versionType": "git"}, {"version": "92dcd7d6c6068bf4fd35a6f64d606e27d634807e", "lessThan": "c052f775ee6ccacd3c97e4cf41a2a657e63d4259", "status": "affected", "versionType": "git"}, {"version": "d8fe01ad2d8ab33aaf8f2efad9e8f1dae11c4b0c", "lessThan": "cd1c7858641384191ff7033fb1fc65dfcd559c6f", "status": "affected", "versionType": "git"}, {"version": "a3ff29a95fde16906304455aa8c0bd84eb770258", "lessThan": "a7ac198f8dba791e3144c4da48a5a9b95773ee4b", "status": "affected", "versionType": "git"}, {"version": "a3ff29a95fde16906304455aa8c0bd84eb770258", "lessThan": "1d1970493c289e3f44b9ec847ed26a5dbdf56a62", "status": "affected", "versionType": "git"}, {"version": "a3ff29a95fde16906304455aa8c0bd84eb770258", "lessThan": "89fc548767a2155231128cb98726d6d2ea1256c9", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/exfat/dir.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.232", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.175", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.44", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.3", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.190", "versionEndExcluding": "5.10.232"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.150", "versionEndExcluding": "5.15.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.6.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.10.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/632fb232b6bbf8277edcbe9ecd4b4d98ecb122eb"}, {"url": "https://git.kernel.org/stable/c/c052f775ee6ccacd3c97e4cf41a2a657e63d4259"}, {"url": "https://git.kernel.org/stable/c/cd1c7858641384191ff7033fb1fc65dfcd559c6f"}, {"url": "https://git.kernel.org/stable/c/a7ac198f8dba791e3144c4da48a5a9b95773ee4b"}, {"url": "https://git.kernel.org/stable/c/1d1970493c289e3f44b9ec847ed26a5dbdf56a62"}, {"url": "https://git.kernel.org/stable/c/89fc548767a2155231128cb98726d6d2ea1256c9"}], "title": "exfat: fix potential deadlock on __exfat_get_dentry_set", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-42315", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:09:45.977516Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:33:26.638Z"}}, {"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": "2025-11-03T20:38:38.291Z"}}]}}

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The problem is that the bh-array is\nallocated with GFP_KERNEL. It does not make sense. In the following cases,\na deadlock for sbi->s_lock between the two processes may occur.\n\n CPU0 CPU1\n ---- ----\n kswapd\n balance_pgdat\n lock(fs_reclaim)\n exfat_iterate\n lock(&sbi->s_lock)\n exfat_readdir\n exfat_get_uniname_from_ext_entry\n exfat_get_dentry_set\n __exfat_get_dentry_set\n kmalloc_array\n ...\n lock(fs_reclaim)\n ...\n evict\n exfat_evict_inode\n lock(&sbi->s_lock)\n\nTo fix this, let's allocate bh-array with GFP_NOFS."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.232", "versionStartIncluding": "5.10.190"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.175", "versionStartIncluding": "5.15.150"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.44", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10.3", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11", "versionStartIncluding": "6.2"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:26:35.431Z"}}}, "cveMetadata": {"cveId": "CVE-2024-42315", "state": "PUBLISHED", "dateUpdated": "2025-05-04T09:26:35.431Z", "dateReserved": "2024-07-30T07:40:12.278Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-08-17T09:09:23.779Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CC912330-6B41-4C6B-99AF-F3857FBACB6A", "versionEndExcluding": "6.6.44", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "92D388F2-1EAF-4CFA-AC06-5B26D762EA7D", "versionEndExcluding": "6.10.3", "versionStartIncluding": "6.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: fix potential deadlock on __exfat_get_dentry_set\n\nWhen accessing a file with more entries than ES_MAX_ENTRY_NUM, the bh-array\nis allocated in __exfat_get_entry_set. The problem is that the bh-array is\nallocated with GFP_KERNEL. It does not make sense. In the following cases,\na deadlock for sbi->s_lock between the two processes may occur.\n\n CPU0 CPU1\n ---- ----\n kswapd\n balance_pgdat\n lock(fs_reclaim)\n exfat_iterate\n lock(&sbi->s_lock)\n exfat_readdir\n exfat_get_uniname_from_ext_entry\n exfat_get_dentry_set\n __exfat_get_dentry_set\n kmalloc_array\n ...\n lock(fs_reclaim)\n ...\n evict\n exfat_evict_inode\n lock(&sbi->s_lock)\n\nTo fix this, let's allocate bh-array with GFP_NOFS."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: exfat: corrige un posible punto muerto en __exfat_get_dentry_set Al acceder a un archivo con m\u00e1s entradas que ES_MAX_ENTRY_NUM, la matriz bh se asigna en __exfat_get_entry_set. El problema es que el bh-array est\u00e1 asignado con GFP_KERNEL. No tiene sentido. En los siguientes casos, puede ocurrir un punto muerto para sbi->s_lock entre los dos procesos. CPU0 CPU1 ---- ---- kswapd balance_pgdat lock(fs_reclaim) exfat_iterate lock(&sbi->s_lock) exfat_readdir exfat_get_uniname_from_ext_entry exfat_get_dentry_set __exfat_get_dentry_set kmalloc_array ... lock(fs_reclaim) ... desalojar exfat_evict_inode lock(&sbi->s_lock) para arreglar esto, asignemos bh-array con GFP_NOFS."}], "id": "CVE-2024-42315", "lastModified": "2025-11-03T21:16:17.810", "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"}]}, "published": "2024-08-17T09:15:11.470", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1d1970493c289e3f44b9ec847ed26a5dbdf56a62"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/632fb232b6bbf8277edcbe9ecd4b4d98ecb122eb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/89fc548767a2155231128cb98726d6d2ea1256c9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a7ac198f8dba791e3144c4da48a5a9b95773ee4b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c052f775ee6ccacd3c97e4cf41a2a657e63d4259"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cd1c7858641384191ff7033fb1fc65dfcd559c6f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "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"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2025:6966", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:6966", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}], "bugzilla": {"description": "kernel: exfat: fix potential deadlock on __exfat_get_dentry_set", "id": "2305460", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2305460"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nexfat: fix potential deadlock on __exfat_get_dentry_set\nWhen accessing a file with more entries than ES_MAX_ENTRY_NUM, the bh-array\nis allocated in __exfat_get_entry_set. The problem is that the bh-array is\nallocated with GFP_KERNEL. It does not make sense. In the following cases,\na deadlock for sbi->s_lock between the two processes may occur.\nCPU0 CPU1\n---- ----\nkswapd\nbalance_pgdat\nlock(fs_reclaim)\nexfat_iterate\nlock(&sbi->s_lock)\nexfat_readdir\nexfat_get_uniname_from_ext_entry\nexfat_get_dentry_set\n__exfat_get_dentry_set\nkmalloc_array\n...\nlock(fs_reclaim)\n...\nevict\nexfat_evict_inode\nlock(&sbi->s_lock)\nTo fix this, let's allocate bh-array with GFP_NOFS."], "name": "CVE-2024-42315", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-08-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-42315\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-42315\nhttps://lore.kernel.org/linux-cve-announce/2024081753-CVE-2024-42315-a707@gregkh/T"], "statement": "Red Hat Enterprise Linux 8 is not affected by this vulnerability.", "threat_severity": "Moderate"}

{}