CVE-2025-38383

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-38383", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.010Z", "datePublished": "2025-07-25T12:53:24.578Z", "dateUpdated": "2026-05-11T21:26:54.489Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:26:54.489Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/vmalloc: fix data race in show_numa_info()\n\nThe following data-race was found in show_numa_info():\n\n==================================================================\nBUG: KCSAN: data-race in vmalloc_info_show / vmalloc_info_show\n\nread to 0xffff88800971fe30 of 4 bytes by task 8289 on cpu 0:\n show_numa_info mm/vmalloc.c:4936 [inline]\n vmalloc_info_show+0x5a8/0x7e0 mm/vmalloc.c:5016\n seq_read_iter+0x373/0xb40 fs/seq_file.c:230\n proc_reg_read_iter+0x11e/0x170 fs/proc/inode.c:299\n....\n\nwrite to 0xffff88800971fe30 of 4 bytes by task 8287 on cpu 1:\n show_numa_info mm/vmalloc.c:4934 [inline]\n vmalloc_info_show+0x38f/0x7e0 mm/vmalloc.c:5016\n seq_read_iter+0x373/0xb40 fs/seq_file.c:230\n proc_reg_read_iter+0x11e/0x170 fs/proc/inode.c:299\n....\n\nvalue changed: 0x0000008f -> 0x00000000\n==================================================================\n\nAccording to this report,there is a read/write data-race because\nm->private is accessible to multiple CPUs. To fix this, instead of\nallocating the heap in proc_vmalloc_init() and passing the heap address to\nm->private, vmalloc_info_show() should allocate the heap."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/vmalloc.c"], "versions": [{"version": "8e1d743f2c2671aa54f6f91a2b33823f92512870", "lessThan": "ead91de35d9cd5c4f80ec51e6020f342079170af", "status": "affected", "versionType": "git"}, {"version": "8e1d743f2c2671aa54f6f91a2b33823f92512870", "lessThan": "5c966f447a584ece3c70395898231aeb56256ee7", "status": "affected", "versionType": "git"}, {"version": "8e1d743f2c2671aa54f6f91a2b33823f92512870", "lessThan": "5c5f0468d172ddec2e333d738d2a1f85402cf0bc", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/vmalloc.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.37", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.6", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16", "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": "6.9", "versionEndExcluding": "6.12.37"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.15.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.16"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ead91de35d9cd5c4f80ec51e6020f342079170af"}, {"url": "https://git.kernel.org/stable/c/5c966f447a584ece3c70395898231aeb56256ee7"}, {"url": "https://git.kernel.org/stable/c/5c5f0468d172ddec2e333d738d2a1f85402cf0bc"}], "title": "mm/vmalloc: fix data race in show_numa_info()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["mm/vmalloc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "ead91de35d9cd5c4f80ec51e6020f342079170af", "status": "affected", "version": "8e1d743f2c2671aa54f6f91a2b33823f92512870", "versionType": "git"}, {"lessThan": "5c966f447a584ece3c70395898231aeb56256ee7", "status": "affected", "version": "8e1d743f2c2671aa54f6f91a2b33823f92512870", "versionType": "git"}, {"lessThan": "5c5f0468d172ddec2e333d738d2a1f85402cf0bc", "status": "affected", "version": "8e1d743f2c2671aa54f6f91a2b33823f92512870", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["mm/vmalloc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.9"}, {"lessThan": "6.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.37", "versionType": "semver"}, {"lessThanOrEqual": "6.15.*", "status": "unaffected", "version": "6.15.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.16", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "77252A0C-7439-4C11-8298-7DB6F82F4393", "versionEndExcluding": "6.12.37", "versionStartIncluding": "6.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6E0BB4E0-44BC-4645-83A8-6EA232CE624C", "versionEndExcluding": "6.15.6", "versionStartIncluding": "6.13", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/vmalloc: fix data race in show_numa_info()\n\nThe following data-race was found in show_numa_info():\n\n==================================================================\nBUG: KCSAN: data-race in vmalloc_info_show / vmalloc_info_show\n\nread to 0xffff88800971fe30 of 4 bytes by task 8289 on cpu 0:\n show_numa_info mm/vmalloc.c:4936 [inline]\n vmalloc_info_show+0x5a8/0x7e0 mm/vmalloc.c:5016\n seq_read_iter+0x373/0xb40 fs/seq_file.c:230\n proc_reg_read_iter+0x11e/0x170 fs/proc/inode.c:299\n....\n\nwrite to 0xffff88800971fe30 of 4 bytes by task 8287 on cpu 1:\n show_numa_info mm/vmalloc.c:4934 [inline]\n vmalloc_info_show+0x38f/0x7e0 mm/vmalloc.c:5016\n seq_read_iter+0x373/0xb40 fs/seq_file.c:230\n proc_reg_read_iter+0x11e/0x170 fs/proc/inode.c:299\n....\n\nvalue changed: 0x0000008f -> 0x00000000\n==================================================================\n\nAccording to this report,there is a read/write data-race because\nm->private is accessible to multiple CPUs. To fix this, instead of\nallocating the heap in proc_vmalloc_init() and passing the heap address to\nm->private, vmalloc_info_show() should allocate the heap."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/vmalloc: correcci\u00f3n de la ejecuci\u00f3n de datos en show_numa_info() Se encontr\u00f3 la siguiente ejecuci\u00f3n de datos en show_numa_info(): ================================================================== BUG: KCSAN: data-race in vmalloc_info_show / vmalloc_info_show read to 0xffff88800971fe30 of 4 bytes by task 8289 on cpu 0: show_numa_info mm/vmalloc.c:4936 [inline] vmalloc_info_show+0x5a8/0x7e0 mm/vmalloc.c:5016 seq_read_iter+0x373/0xb40 fs/seq_file.c:230 proc_reg_read_iter+0x11e/0x170 fs/proc/inode.c:299 .... write to 0xffff88800971fe30 of 4 bytes by task 8287 on cpu 1: show_numa_info mm/vmalloc.c:4934 [inline] vmalloc_info_show+0x38f/0x7e0 mm/vmalloc.c:5016 seq_read_iter+0x373/0xb40 fs/seq_file.c:230 proc_reg_read_iter+0x11e/0x170 fs/proc/inode.c:299 .... value changed: 0x0000008f -> 0x00000000 ================================================================== Seg\u00fan este informe, existe una competencia de lectura/escritura de datos porque m->private es accesible a varias CPU. Para solucionar esto, en lugar de asignar el mont\u00f3n en proc_vmalloc_init() y pasar la direcci\u00f3n del mont\u00f3n a m->private, vmalloc_info_show() deber\u00eda asignarlo."}], "id": "CVE-2025-38383", "lastModified": "2026-06-17T09:16:44.817", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-07-25T13:15:27.520", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5c5f0468d172ddec2e333d738d2a1f85402cf0bc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5c966f447a584ece3c70395898231aeb56256ee7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ead91de35d9cd5c4f80ec51e6020f342079170af"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mm/vmalloc: fix data race in show_numa_info()", "id": "2383425", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2383425"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmm/vmalloc: fix data race in show_numa_info()\nThe following data-race was found in show_numa_info():\n==================================================================\nBUG: KCSAN: data-race in vmalloc_info_show / vmalloc_info_show\nread to 0xffff88800971fe30 of 4 bytes by task 8289 on cpu 0:\nshow_numa_info mm/vmalloc.c:4936 [inline]\nvmalloc_info_show+0x5a8/0x7e0 mm/vmalloc.c:5016\nseq_read_iter+0x373/0xb40 fs/seq_file.c:230\nproc_reg_read_iter+0x11e/0x170 fs/proc/inode.c:299\n....\nwrite to 0xffff88800971fe30 of 4 bytes by task 8287 on cpu 1:\nshow_numa_info mm/vmalloc.c:4934 [inline]\nvmalloc_info_show+0x38f/0x7e0 mm/vmalloc.c:5016\nseq_read_iter+0x373/0xb40 fs/seq_file.c:230\nproc_reg_read_iter+0x11e/0x170 fs/proc/inode.c:299\n....\nvalue changed: 0x0000008f -> 0x00000000\n==================================================================\nAccording to this report,there is a read/write data-race because\nm->private is accessible to multiple CPUs. To fix this, instead of\nallocating the heap in proc_vmalloc_init() and passing the heap address to\nm->private, vmalloc_info_show() should allocate the heap."], "name": "CVE-2025-38383", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38383\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38383\nhttps://lore.kernel.org/linux-cve-announce/2025072506-CVE-2025-38383-c967@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-26T12:07:40.918262+00:00", "updated": "2025-07-26T12:07:40.918314+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}