mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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192 lines
9.5 KiB
JSON
192 lines
9.5 KiB
JSON
{
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"id": "CVE-2022-48986",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-10-21T20:15:10.527",
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"lastModified": "2024-11-01T15:30:13.770",
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"vulnStatus": "Analyzed",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"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"
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},
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{
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"lang": "es",
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"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 < snip > 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 < snip > ---[ fin del seguimiento 48b2e0e67debcaeb ]--- RIP: 0010:internal_get_user_pages_fast+0x340/0x990 < snip > P\u00e1nico del n\u00facleo: no se sincroniza: Excepci\u00f3n fatal Desplazamiento del n\u00facleo: deshabilitado"
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}
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],
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"metrics": {
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 5.5,
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"baseSeverity": "MEDIUM",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "HIGH"
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},
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"exploitabilityScore": 1.8,
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"impactScore": 3.6
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}
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]
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},
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"weaknesses": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "NVD-CWE-noinfo"
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}
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}
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],
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"configurations": [
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"operator": "OR",
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