cve-2024-41031
Vulnerability from cvelistv5
Published
2024-07-29 14:31
Modified
2024-11-05 09:35
Severity ?
Summary
mm/filemap: skip to create PMD-sized page cache if needed
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/06b5a69c27ec405a3c3f2da8520ff1ee70b94a21
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ef650d3b1b2a16473981b447f38705fe9b93972
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3390916aca7af1893ed2ebcdfee1d6fdb65bb058
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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          "dateUpdated": "2024-08-02T04:39:56.076Z",
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        "title": "CVE Program Container"
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        "metrics": [
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              "content": {
                "id": "CVE-2024-41031",
                "options": [
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                    "Exploitation": "none"
                  },
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                  },
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:23:47.337033Z",
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/filemap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "versions": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/filemap: skip to create PMD-sized page cache if needed\n\nOn ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB.  The\nPMD-sized page cache can\u0027t be supported by xarray as the following error\nmessages indicate.\n\n------------[ cut here ]------------\nWARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128\nModules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib  \\\nnft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct    \\\nnft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4    \\\nip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm      \\\nfuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64      \\\nsha1_ce virtio_net net_failover virtio_console virtio_blk failover \\\ndimlib virtio_mmio\nCPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9\nHardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024\npstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\npc : xas_split_alloc+0xf8/0x128\nlr : split_huge_page_to_list_to_order+0x1c4/0x720\nsp : ffff800087a4f6c0\nx29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffff\nx26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858\nx23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000\nx20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000\nx17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000\nx14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020\nx11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28\nx8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8\nx5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40\nx2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000\nCall trace:\n xas_split_alloc+0xf8/0x128\n split_huge_page_to_list_to_order+0x1c4/0x720\n truncate_inode_partial_folio+0xdc/0x160\n truncate_inode_pages_range+0x1b4/0x4a8\n truncate_pagecache_range+0x84/0xa0\n xfs_flush_unmap_range+0x70/0x90 [xfs]\n xfs_file_fallocate+0xfc/0x4d8 [xfs]\n vfs_fallocate+0x124/0x2e8\n ksys_fallocate+0x4c/0xa0\n __arm64_sys_fallocate+0x24/0x38\n invoke_syscall.constprop.0+0x7c/0xd8\n do_el0_svc+0xb4/0xd0\n el0_svc+0x44/0x1d8\n el0t_64_sync_handler+0x134/0x150\n el0t_64_sync+0x17c/0x180\n\nFix it by skipping to allocate PMD-sized page cache when its size is\nlarger than MAX_PAGECACHE_ORDER.  For this specific case, we will fall to\nregular path where the readahead window is determined by BDI\u0027s sysfs file\n(read_ahead_kb)."
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        "dateUpdated": "2024-11-05T09:35:19.821Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "mm/filemap: skip to create PMD-sized page cache if needed",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-41031",
    "datePublished": "2024-07-29T14:31:46.943Z",
    "dateReserved": "2024-07-12T12:17:45.618Z",
    "dateUpdated": "2024-11-05T09:35:19.821Z",
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  }
}


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