{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-48726", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-06-20T11:09:39.051Z", "datePublished": "2024-06-20T11:13:15.957Z", "dateUpdated": "2024-09-11T17:34:49.191Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-06-20T11:14:14.879Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/ucma: Protect mc during concurrent multicast leaves\n\nPartially revert the commit mentioned in the Fixes line to make sure that\nallocation and erasing multicast struct are locked.\n\n BUG: KASAN: use-after-free in ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [inline]\n BUG: KASAN: use-after-free in ucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c:579\n Read of size 8 at addr ffff88801bb74b00 by task syz-executor.1/25529\n CPU: 0 PID: 25529 Comm: syz-executor.1 Not tainted 5.16.0-rc7-syzkaller #0\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\n Call Trace:\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247\n __kasan_report mm/kasan/report.c:433 [inline]\n kasan_report.cold+0x83/0xdf mm/kasan/report.c:450\n ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [inline]\n ucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c:579\n ucma_destroy_id+0x1e6/0x280 drivers/infiniband/core/ucma.c:614\n ucma_write+0x25c/0x350 drivers/infiniband/core/ucma.c:1732\n vfs_write+0x28e/0xae0 fs/read_write.c:588\n ksys_write+0x1ee/0x250 fs/read_write.c:643\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nCurrently the xarray search can touch a concurrently freeing mc as the\nxa_for_each() is not surrounded by any lock. Rather than hold the lock for\na full scan hold it only for the effected items, which is usually an empty\nlist."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/core/ucma.c"], "versions": [{"version": "95fe51096b7a", "lessThan": "75c610212b9f", "status": "affected", "versionType": "git"}, {"version": "95fe51096b7a", "lessThan": "2923948ffe08", "status": "affected", "versionType": "git"}, {"version": "95fe51096b7a", "lessThan": "ee2477e8ccd3", "status": "affected", "versionType": "git"}, {"version": "95fe51096b7a", "lessThan": "36e8169ec973", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/core/ucma.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "custom"}, {"version": "5.10.99", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.15.22", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.16.8", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.17", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/75c610212b9f1756b9384911d3a2c347eee8031c"}, {"url": "https://git.kernel.org/stable/c/2923948ffe0835f7114e948b35bcc42bc9b3baa1"}, {"url": "https://git.kernel.org/stable/c/ee2477e8ccd3d978eeac0dc5a981b286d9bb7b0a"}, {"url": "https://git.kernel.org/stable/c/36e8169ec973359f671f9ec7213547059cae972e"}], "title": "RDMA/ucma: Protect mc during concurrent multicast leaves", "x_generator": {"engine": "bippy-7d53e8ef8be4"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:24:59.977Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/75c610212b9f1756b9384911d3a2c347eee8031c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/2923948ffe0835f7114e948b35bcc42bc9b3baa1", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/ee2477e8ccd3d978eeac0dc5a981b286d9bb7b0a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/36e8169ec973359f671f9ec7213547059cae972e", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48726", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T17:11:03.672761Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:49.191Z"}}]}}

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Rather than hold the lock for\na full scan hold it only for the effected items, which is usually an empty\nlist."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-06-20T11:14:14.879Z"}}}, "cveMetadata": {"cveId": "CVE-2022-48726", "state": "PUBLISHED", "dateUpdated": "2024-09-11T17:34:49.191Z", "dateReserved": "2024-06-20T11:09:39.051Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-06-20T11:13:15.957Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "3E812CCF-4A89-422A-B105-BAD11567643C", "versionEndExcluding": "5.10.99", "versionStartIncluding": "5.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "74528AA6-B524-4C3F-B188-1194235FE47D", "versionEndExcluding": "5.15.22", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0623892A-E3E4-44E6-8A5E-39A0B47AF782", "versionEndExcluding": "5.16.8", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*", "matchCriteriaId": "7BD5F8D9-54FA-4CB0-B4F0-CB0471FDDB2D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*", "matchCriteriaId": "E6E34B23-78B4-4516-9BD8-61B33F4AC49A", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/ucma: Protect mc during concurrent multicast leaves\n\nPartially revert the commit mentioned in the Fixes line to make sure that\nallocation and erasing multicast struct are locked.\n\n BUG: KASAN: use-after-free in ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [inline]\n BUG: KASAN: use-after-free in ucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c:579\n Read of size 8 at addr ffff88801bb74b00 by task syz-executor.1/25529\n CPU: 0 PID: 25529 Comm: syz-executor.1 Not tainted 5.16.0-rc7-syzkaller #0\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\n Call Trace:\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247\n __kasan_report mm/kasan/report.c:433 [inline]\n kasan_report.cold+0x83/0xdf mm/kasan/report.c:450\n ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [inline]\n ucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c:579\n ucma_destroy_id+0x1e6/0x280 drivers/infiniband/core/ucma.c:614\n ucma_write+0x25c/0x350 drivers/infiniband/core/ucma.c:1732\n vfs_write+0x28e/0xae0 fs/read_write.c:588\n ksys_write+0x1ee/0x250 fs/read_write.c:643\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nCurrently the xarray search can touch a concurrently freeing mc as the\nxa_for_each() is not surrounded by any lock. Rather than hold the lock for\na full scan hold it only for the effected items, which is usually an empty\nlist."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/ucma: protege mc durante las salidas simult\u00e1neas de multidifusi\u00f3n. Revierta parcialmente la confirmaci\u00f3n mencionada en la l\u00ednea Correcciones para asegurarse de que la asignaci\u00f3n y el borrado de la estructura de multidifusi\u00f3n est\u00e9n bloqueados. ERROR: KASAN: use-after-free en ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [en l\u00ednea] ERROR: KASAN: use-after-free en ucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c: 579 Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff88801bb74b00 mediante la tarea syz-executor.1/25529 CPU: 0 PID: 25529 Comm: syz-executor.1 No contaminado 5.16.0-rc7-syzkaller #0 Nombre de hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en l\u00ednea] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan /report.c:247 __kasan_report mm/kasan/report.c:433 [en l\u00ednea] kasan_report.cold+0x83/0xdf mm/kasan/report.c:450 ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [en l\u00ednea] ucma_destroy_private_ctx+0x914/0xb70 controladores/infiniband/core/ucma.c:579 ucma_destroy_id+0x1e6/0x280 controladores/infiniband/core/ucma.c:614 ucma_write+0x25c/0x350 controladores/infiniband/core/ucma.c:1732 vfs_write+ 0x28e/0xae0 fs/read_write.c:588 ksys_write+0x1ee/0x250 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:50 [en l\u00ednea] do_syscall_64+0x35/0xb0 arch/x86/entry/common. c:80 Entry_SYSCALL_64_after_hwframe+0x44/0xae Actualmente, la b\u00fasqueda de xarray puede tocar un mc que se libera simult\u00e1neamente ya que xa_for_each() no est\u00e1 rodeado por ning\u00fan candado. En lugar de mantener el bloqueo durante un escaneo completo, mant\u00e9ngalo solo para los elementos afectados, que generalmente son una lista vac\u00eda."}], "id": "CVE-2022-48726", "lastModified": "2024-09-18T16:09:15.723", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-06-20T12:15:11.077", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2923948ffe0835f7114e948b35bcc42bc9b3baa1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/36e8169ec973359f671f9ec7213547059cae972e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/75c610212b9f1756b9384911d3a2c347eee8031c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ee2477e8ccd3d978eeac0dc5a981b286d9bb7b0a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: RDMA/ucma: Protect mc during concurrent multicast leaves", "id": "2293334", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293334"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nRDMA/ucma: Protect mc during concurrent multicast leaves\nPartially revert the commit mentioned in the Fixes line to make sure that\nallocation and erasing multicast struct are locked.\nBUG: KASAN: use-after-free in ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [inline]\nBUG: KASAN: use-after-free in ucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c:579\nRead of size 8 at addr ffff88801bb74b00 by task syz-executor.1/25529\nCPU: 0 PID: 25529 Comm: syz-executor.1 Not tainted 5.16.0-rc7-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nCall Trace:\n__dump_stack lib/dump_stack.c:88 [inline]\ndump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\nprint_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247\n__kasan_report mm/kasan/report.c:433 [inline]\nkasan_report.cold+0x83/0xdf mm/kasan/report.c:450\nucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [inline]\nucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c:579\nucma_destroy_id+0x1e6/0x280 drivers/infiniband/core/ucma.c:614\nucma_write+0x25c/0x350 drivers/infiniband/core/ucma.c:1732\nvfs_write+0x28e/0xae0 fs/read_write.c:588\nksys_write+0x1ee/0x250 fs/read_write.c:643\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x44/0xae\nCurrently the xarray search can touch a concurrently freeing mc as the\nxa_for_each() is not surrounded by any lock. Rather than hold the lock for\na full scan hold it only for the effected items, which is usually an empty\nlist."], "name": "CVE-2022-48726", "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": "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": "2024-06-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48726\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48726\nhttps://lore.kernel.org/linux-cve-announce/2024062058-CVE-2022-48726-adb1@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 5.10.99, kernel 5.15.22, kernel 5.16.8, kernel 5.17"}