{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-48986", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-22T01:27:53.634Z", "datePublished": "2024-10-21T20:06:02.502Z", "dateUpdated": "2026-05-23T15:21:16.864Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:21:16.864Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/gup: fix gup_pud_range() for dax\n\nFor dax pud, pud_huge() returns true on x86. So the function works as long\nas hugetlb is configured. However, dax doesn't depend on hugetlb.\nCommit 414fd080d125 (\"mm/gup: fix gup_pmd_range() for dax\") fixed\ndevmap-backed huge PMDs, but missed devmap-backed huge PUDs. Fix this as\nwell.\n\nThis fixes the below kernel panic:\n\ngeneral protection fault, probably for non-canonical address 0x69e7c000cc478: 0000 [#1] SMP\n\t< snip >\nCall Trace:\n<TASK>\nget_user_pages_fast+0x1f/0x40\niov_iter_get_pages+0xc6/0x3b0\n? mempool_alloc+0x5d/0x170\nbio_iov_iter_get_pages+0x82/0x4e0\n? bvec_alloc+0x91/0xc0\n? bio_alloc_bioset+0x19a/0x2a0\nblkdev_direct_IO+0x282/0x480\n? __io_complete_rw_common+0xc0/0xc0\n? filemap_range_has_page+0x82/0xc0\ngeneric_file_direct_write+0x9d/0x1a0\n? inode_update_time+0x24/0x30\n__generic_file_write_iter+0xbd/0x1e0\nblkdev_write_iter+0xb4/0x150\n? io_import_iovec+0x8d/0x340\nio_write+0xf9/0x300\nio_issue_sqe+0x3c3/0x1d30\n? sysvec_reschedule_ipi+0x6c/0x80\n__io_queue_sqe+0x33/0x240\n? fget+0x76/0xa0\nio_submit_sqes+0xe6a/0x18d0\n? __fget_light+0xd1/0x100\n__x64_sys_io_uring_enter+0x199/0x880\n? __context_tracking_enter+0x1f/0x70\n? irqentry_exit_to_user_mode+0x24/0x30\n? irqentry_exit+0x1d/0x30\n? __context_tracking_exit+0xe/0x70\ndo_syscall_64+0x3b/0x90\nentry_SYSCALL_64_after_hwframe+0x61/0xcb\nRIP: 0033:0x7fc97c11a7be\n\t< snip >\n</TASK>\n---[ end trace 48b2e0e67debcaeb ]---\nRIP: 0010:internal_get_user_pages_fast+0x340/0x990\n\t< snip >\nKernel panic - not syncing: Fatal exception\nKernel Offset: disabled"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/gup.c"], "versions": [{"version": "414fd080d125408cb15d04ff4907e1dd8145c8c7", "lessThan": "04edfa3dc06ecfc6133a33bc7271298782dee875", "status": "affected", "versionType": "git"}, {"version": "414fd080d125408cb15d04ff4907e1dd8145c8c7", "lessThan": "f1cf856123ceb766c49967ec79b841030fa1741f", "status": "affected", "versionType": "git"}, {"version": "414fd080d125408cb15d04ff4907e1dd8145c8c7", "lessThan": "3ac29732a2ffa64c7de13a072b0f2848b9c11037", "status": "affected", "versionType": "git"}, {"version": "414fd080d125408cb15d04ff4907e1dd8145c8c7", "lessThan": "e06d13c36ded750c72521b600293befebb4e56c5", "status": "affected", "versionType": "git"}, {"version": "414fd080d125408cb15d04ff4907e1dd8145c8c7", "lessThan": "fcd0ccd836ffad73d98a66f6fea7b16f735ea920", "status": "affected", "versionType": "git"}, {"version": "c133d8eb894cb280f331608c6f1962ba9fbfe6b0", "status": "affected", "versionType": "git"}, {"version": "538162d21ac877b060dc057c89f13718f5caffc5", "status": "affected", "versionType": "git"}, {"version": "8b1a7762e0dac5db42a003009fdcb425f10baa07", "status": "affected", "versionType": "git"}, {"version": "4.9.165", "lessThan": "4.10", "status": "affected", "versionType": "semver"}, {"version": "4.14.108", "lessThan": "4.15", "status": "affected", "versionType": "semver"}, {"version": "4.19.31", "lessThan": "4.20", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/gup.c"], "versions": [{"version": "5.0", "status": "affected"}, {"version": "0", "lessThan": "5.0", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.227", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.159", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.83", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.13", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "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": "5.0", "versionEndExcluding": "5.4.227"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "5.10.159"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "5.15.83"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.0.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.108"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.31"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/04edfa3dc06ecfc6133a33bc7271298782dee875"}, {"url": "https://git.kernel.org/stable/c/f1cf856123ceb766c49967ec79b841030fa1741f"}, {"url": "https://git.kernel.org/stable/c/3ac29732a2ffa64c7de13a072b0f2848b9c11037"}, {"url": "https://git.kernel.org/stable/c/e06d13c36ded750c72521b600293befebb4e56c5"}, {"url": "https://git.kernel.org/stable/c/fcd0ccd836ffad73d98a66f6fea7b16f735ea920"}], "title": "mm/gup: fix gup_pud_range() for dax", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48986", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-22T13:17:13.077740Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:18:42.957Z"}}]}}

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So the function works as long\nas hugetlb is configured. However, dax doesn't depend on hugetlb.\nCommit 414fd080d125 (\"mm/gup: fix gup_pmd_range() for dax\") fixed\ndevmap-backed huge PMDs, but missed devmap-backed huge PUDs. 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So the function works as long\nas hugetlb is configured. However, dax doesn't depend on hugetlb.\nCommit 414fd080d125 (\"mm/gup: fix gup_pmd_range() for dax\") fixed\ndevmap-backed huge PMDs, but missed devmap-backed huge PUDs. Fix this as\nwell.\n\nThis fixes the below kernel panic:\n\ngeneral protection fault, probably for non-canonical address 0x69e7c000cc478: 0000 [#1] SMP\n\t< snip >\nCall Trace:\n<TASK>\nget_user_pages_fast+0x1f/0x40\niov_iter_get_pages+0xc6/0x3b0\n? mempool_alloc+0x5d/0x170\nbio_iov_iter_get_pages+0x82/0x4e0\n? bvec_alloc+0x91/0xc0\n? bio_alloc_bioset+0x19a/0x2a0\nblkdev_direct_IO+0x282/0x480\n? __io_complete_rw_common+0xc0/0xc0\n? filemap_range_has_page+0x82/0xc0\ngeneric_file_direct_write+0x9d/0x1a0\n? inode_update_time+0x24/0x30\n__generic_file_write_iter+0xbd/0x1e0\nblkdev_write_iter+0xb4/0x150\n? io_import_iovec+0x8d/0x340\nio_write+0xf9/0x300\nio_issue_sqe+0x3c3/0x1d30\n? sysvec_reschedule_ipi+0x6c/0x80\n__io_queue_sqe+0x33/0x240\n? fget+0x76/0xa0\nio_submit_sqes+0xe6a/0x18d0\n? __fget_light+0xd1/0x100\n__x64_sys_io_uring_enter+0x199/0x880\n? __context_tracking_enter+0x1f/0x70\n? irqentry_exit_to_user_mode+0x24/0x30\n? irqentry_exit+0x1d/0x30\n? __context_tracking_exit+0xe/0x70\ndo_syscall_64+0x3b/0x90\nentry_SYSCALL_64_after_hwframe+0x61/0xcb\nRIP: 0033:0x7fc97c11a7be\n\t< snip >\n</TASK>\n---[ end trace 48b2e0e67debcaeb ]---\nRIP: 0010:internal_get_user_pages_fast+0x340/0x990\n\t< snip >\nKernel panic - not syncing: Fatal exception\nKernel Offset: disabled"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/gup: fix gup_pud_range() for dax Para dax pud, pud_huge() devuelve true en x86. Por lo tanto, la funci\u00f3n funciona siempre que hugetlb est\u00e9 configurado. Sin embargo, dax no depende de hugetlb. el commit 414fd080d125 (\"mm/gup: fix gup_pmd_range() for dax\") corrigi\u00f3 los PMD enormes respaldados por devmap, pero omiti\u00f3 los PUD enormes respaldados por devmap. Corrija esto tambi\u00e9n. Esto corrige el siguiente p\u00e1nico del kernel: error de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0x69e7c000cc478: 0000 [#1] SMP &lt; snip &gt; Call Trace: get_user_pages_fast+0x1f/0x40 iov_iter_get_pages+0xc6/0x3b0 ? mempool_alloc+0x5d/0x170 bio_iov_iter_get_pages+0x82/0x4e0 ? bvec_alloc+0x91/0xc0 ? bio_alloc_bioset+0x19a/0x2a0 blkdev_direct_IO+0x282/0x480 ? __io_complete_rw_common+0xc0/0xc0 ? filemap_range_has_page+0x82/0xc0 generic_file_direct_write+0x9d/0x1a0? inode_update_time+0x24/0x30 __generic_file_write_iter+0xbd/0x1e0 blkdev_write_iter+0xb4/0x150 ? io_import_iovec+0x8d/0x340 io_write+0xf9/0x300 io_issue_sqe+0x3c3/0x1d30 ? sysvec_reschedule_ipi+0x6c/0x80 __io_queue_sqe+0x33/0x240 ? fget+0x76/0xa0 io_submit_sqes+0xe6a/0x18d0 ? __fget_light+0xd1/0x100 __x64_sys_io_uring_enter+0x199/0x880 ? __context_tracking_enter+0x1f/0x70 ? irqentry_exit_to_user_mode+0x24/0x30 ? irqentry_exit+0x1d/0x30 ? __context_tracking_exit+0xe/0x70 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fc97c11a7be &lt; snip &gt; ---[ fin del seguimiento 48b2e0e67debcaeb ]--- RIP: 0010:internal_get_user_pages_fast+0x340/0x990 &lt; snip &gt; P\u00e1nico del n\u00facleo: no se sincroniza: Excepci\u00f3n fatal Desplazamiento del n\u00facleo: deshabilitado"}], "id": "CVE-2022-48986", "lastModified": "2024-11-01T15:30:13.770", "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": "2024-10-21T20:15:10.527", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/04edfa3dc06ecfc6133a33bc7271298782dee875"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3ac29732a2ffa64c7de13a072b0f2848b9c11037"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e06d13c36ded750c72521b600293befebb4e56c5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f1cf856123ceb766c49967ec79b841030fa1741f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fcd0ccd836ffad73d98a66f6fea7b16f735ea920"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mm/gup: fix gup_pud_range() for dax", "id": "2320686", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320686"}, "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": "draft"}, "cwe": "CWE-20", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmm/gup: fix gup_pud_range() for dax\nFor dax pud, pud_huge() returns true on x86. So the function works as long\nas hugetlb is configured. However, dax doesn't depend on hugetlb.\nCommit 414fd080d125 (\"mm/gup: fix gup_pmd_range() for dax\") fixed\ndevmap-backed huge PMDs, but missed devmap-backed huge PUDs. Fix this as\nwell.\nThis fixes the below kernel panic:\ngeneral protection fault, probably for non-canonical address 0x69e7c000cc478: 0000 [#1] SMP\n< snip >\nCall Trace:\n<TASK>\nget_user_pages_fast+0x1f/0x40\niov_iter_get_pages+0xc6/0x3b0\n? mempool_alloc+0x5d/0x170\nbio_iov_iter_get_pages+0x82/0x4e0\n? bvec_alloc+0x91/0xc0\n? bio_alloc_bioset+0x19a/0x2a0\nblkdev_direct_IO+0x282/0x480\n? __io_complete_rw_common+0xc0/0xc0\n? filemap_range_has_page+0x82/0xc0\ngeneric_file_direct_write+0x9d/0x1a0\n? inode_update_time+0x24/0x30\n__generic_file_write_iter+0xbd/0x1e0\nblkdev_write_iter+0xb4/0x150\n? io_import_iovec+0x8d/0x340\nio_write+0xf9/0x300\nio_issue_sqe+0x3c3/0x1d30\n? sysvec_reschedule_ipi+0x6c/0x80\n__io_queue_sqe+0x33/0x240\n? fget+0x76/0xa0\nio_submit_sqes+0xe6a/0x18d0\n? __fget_light+0xd1/0x100\n__x64_sys_io_uring_enter+0x199/0x880\n? __context_tracking_enter+0x1f/0x70\n? irqentry_exit_to_user_mode+0x24/0x30\n? irqentry_exit+0x1d/0x30\n? __context_tracking_exit+0xe/0x70\ndo_syscall_64+0x3b/0x90\nentry_SYSCALL_64_after_hwframe+0x61/0xcb\nRIP: 0033:0x7fc97c11a7be\n< snip >\n</TASK>\n---[ end trace 48b2e0e67debcaeb ]---\nRIP: 0010:internal_get_user_pages_fast+0x340/0x990\n< snip >\nKernel panic - not syncing: Fatal exception\nKernel Offset: disabled"], "name": "CVE-2022-48986", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "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", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48986\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48986\nhttps://lore.kernel.org/linux-cve-announce/2024102147-CVE-2022-48986-cd7d@gregkh/T"], "threat_severity": "Moderate"}

{}