CVE-2022-48986 (GCVE-0-2022-48986)

Vulnerability from cvelistv5 – Published: 2024-10-21 20:06 – Updated: 2026-05-23 15:21
VLAI
Title
mm/gup: fix gup_pud_range() for dax
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/gup: fix gup_pud_range() for dax For dax pud, pud_huge() returns true on x86. So the function works as long as hugetlb is configured. However, dax doesn't depend on hugetlb. Commit 414fd080d125 ("mm/gup: fix gup_pmd_range() for dax") fixed devmap-backed huge PMDs, but missed devmap-backed huge PUDs. Fix this as well. This fixes the below kernel panic: general protection fault, probably for non-canonical address 0x69e7c000cc478: 0000 [#1] SMP < snip > Call Trace: <TASK> 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 < snip > </TASK> ---[ end trace 48b2e0e67debcaeb ]--- RIP: 0010:internal_get_user_pages_fast+0x340/0x990 < snip > Kernel panic - not syncing: Fatal exception Kernel Offset: disabled
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 414fd080d125408cb15d04ff4907e1dd8145c8c7 , < 04edfa3dc06ecfc6133a33bc7271298782dee875 (git)
Affected: 414fd080d125408cb15d04ff4907e1dd8145c8c7 , < f1cf856123ceb766c49967ec79b841030fa1741f (git)
Affected: 414fd080d125408cb15d04ff4907e1dd8145c8c7 , < 3ac29732a2ffa64c7de13a072b0f2848b9c11037 (git)
Affected: 414fd080d125408cb15d04ff4907e1dd8145c8c7 , < e06d13c36ded750c72521b600293befebb4e56c5 (git)
Affected: 414fd080d125408cb15d04ff4907e1dd8145c8c7 , < fcd0ccd836ffad73d98a66f6fea7b16f735ea920 (git)
Affected: c133d8eb894cb280f331608c6f1962ba9fbfe6b0 (git)
Affected: 538162d21ac877b060dc057c89f13718f5caffc5 (git)
Affected: 8b1a7762e0dac5db42a003009fdcb425f10baa07 (git)
Affected: 4.9.165 , < 4.10 (semver)
Affected: 4.14.108 , < 4.15 (semver)
Affected: 4.19.31 , < 4.20 (semver)
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Linux Linux Affected: 5.0
Unaffected: 0 , < 5.0 (semver)
Unaffected: 5.4.227 , ≤ 5.4.* (semver)
Unaffected: 5.10.159 , ≤ 5.10.* (semver)
Unaffected: 5.15.83 , ≤ 5.15.* (semver)
Unaffected: 6.0.13 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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      "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\u0027t 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\u003c snip \u003e\\nCall Trace:\\n\u003cTASK\u003e\\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\u003c snip \u003e\\n\u003c/TASK\u003e\\n---[ end trace 48b2e0e67debcaeb ]---\\nRIP: 0010:internal_get_user_pages_fast+0x340/0x990\\n\\t\u003c snip \u003e\\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 \u0026lt; snip \u0026gt; 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 \u0026lt; snip \u0026gt;  ---[ fin del seguimiento 48b2e0e67debcaeb ]--- RIP: 0010:internal_get_user_pages_fast+0x340/0x990 \u0026lt; snip \u0026gt; 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\": [{\"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}]}",
      "published": "2024-10-21T20:15:10.527",
      "references": "[{\"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\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48986\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T20:15:10.527\",\"lastModified\":\"2026-06-17T05:16:47.077\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"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\u0027t 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\u003c snip \u003e\\nCall Trace:\\n\u003cTASK\u003e\\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\u003c snip \u003e\\n\u003c/TASK\u003e\\n---[ end trace 48b2e0e67debcaeb ]---\\nRIP: 0010:internal_get_user_pages_fast+0x340/0x990\\n\\t\u003c snip \u003e\\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 \u0026lt; snip \u0026gt; 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 \u0026lt; snip \u0026gt;  ---[ fin del seguimiento 48b2e0e67debcaeb ]--- RIP: 0010:internal_get_user_pages_fast+0x340/0x990 \u0026lt; snip \u0026gt; P\u00e1nico del n\u00facleo: no se sincroniza: Excepci\u00f3n fatal Desplazamiento del n\u00facleo: deshabilitado\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"mm/gup.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"414fd080d125408cb15d04ff4907e1dd8145c8c7\",\"lessThan\":\"04edfa3dc06ecfc6133a33bc7271298782dee875\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"414fd080d125408cb15d04ff4907e1dd8145c8c7\",\"lessThan\":\"f1cf856123ceb766c49967ec79b841030fa1741f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"414fd080d125408cb15d04ff4907e1dd8145c8c7\",\"lessThan\":\"3ac29732a2ffa64c7de13a072b0f2848b9c11037\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"414fd080d125408cb15d04ff4907e1dd8145c8c7\",\"lessThan\":\"e06d13c36ded750c72521b600293befebb4e56c5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"414fd080d125408cb15d04ff4907e1dd8145c8c7\",\"lessThan\":\"fcd0ccd836ffad73d98a66f6fea7b16f735ea920\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c133d8eb894cb280f331608c6f1962ba9fbfe6b0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"538162d21ac877b060dc057c89f13718f5caffc5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8b1a7762e0dac5db42a003009fdcb425f10baa07\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4.9.165\",\"lessThan\":\"4.10\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.14.108\",\"lessThan\":\"4.15\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.19.31\",\"lessThan\":\"4.20\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"mm/gup.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.0\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.0\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.227\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.159\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.83\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.0.13\",\"lessThanOrEqual\":\"6.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1\",\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-10-22T13:17:13.077740Z\",\"id\":\"CVE-2022-48986\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T13:48:34+00:00",
      "cve": "CVE-2022-48986",
      "id": "CVE-2022-48986",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mm/gup: fix gup_pud_range() for dax",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-48986.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"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\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:17:16.285Z\"}}], \"cna\": {\"title\": \"mm/gup: fix gup_pud_range() for dax\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"414fd080d125408cb15d04ff4907e1dd8145c8c7\", \"lessThan\": \"04edfa3dc06ecfc6133a33bc7271298782dee875\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"414fd080d125408cb15d04ff4907e1dd8145c8c7\", \"lessThan\": \"f1cf856123ceb766c49967ec79b841030fa1741f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"414fd080d125408cb15d04ff4907e1dd8145c8c7\", \"lessThan\": \"3ac29732a2ffa64c7de13a072b0f2848b9c11037\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"414fd080d125408cb15d04ff4907e1dd8145c8c7\", \"lessThan\": \"e06d13c36ded750c72521b600293befebb4e56c5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"414fd080d125408cb15d04ff4907e1dd8145c8c7\", \"lessThan\": \"fcd0ccd836ffad73d98a66f6fea7b16f735ea920\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c133d8eb894cb280f331608c6f1962ba9fbfe6b0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"538162d21ac877b060dc057c89f13718f5caffc5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8b1a7762e0dac5db42a003009fdcb425f10baa07\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4.9.165\", \"lessThan\": \"4.10\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"4.14.108\", \"lessThan\": \"4.15\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"4.19.31\", \"lessThan\": \"4.20\", \"versionType\": \"semver\"}], \"programFiles\": [\"mm/gup.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.0\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.0\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.227\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.159\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.83\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.13\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"mm/gup.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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\u0027t 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\u003c snip \u003e\\nCall Trace:\\n\u003cTASK\u003e\\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\u003c snip \u003e\\n\u003c/TASK\u003e\\n---[ end trace 48b2e0e67debcaeb ]---\\nRIP: 0010:internal_get_user_pages_fast+0x340/0x990\\n\\t\u003c snip \u003e\\nKernel panic - not syncing: Fatal exception\\nKernel Offset: disabled\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.227\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.159\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.83\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.13\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.9.165\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.14.108\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.19.31\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-23T15:21:16.864Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48986\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-23T15:21:16.864Z\", \"dateReserved\": \"2024-08-22T01:27:53.634Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T20:06:02.502Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.