fkie_cve-2023-54153
Vulnerability from fkie_nvd
Published
2025-12-24 13:16
Modified
2025-12-24 13:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: turn quotas off if mount failed after enabling quotas Yi found during a review of the patch "ext4: don't BUG on inconsistent journal feature" that when ext4_mark_recovery_complete() returns an error value, the error handling path does not turn off the enabled quotas, which triggers the following kmemleak: ================================================================ unreferenced object 0xffff8cf68678e7c0 (size 64): comm "mount", pid 746, jiffies 4294871231 (age 11.540s) hex dump (first 32 bytes): 00 90 ef 82 f6 8c ff ff 00 00 00 00 41 01 00 00 ............A... c7 00 00 00 bd 00 00 00 0a 00 00 00 48 00 00 00 ............H... backtrace: [<00000000c561ef24>] __kmem_cache_alloc_node+0x4d4/0x880 [<00000000d4e621d7>] kmalloc_trace+0x39/0x140 [<00000000837eee74>] v2_read_file_info+0x18a/0x3a0 [<0000000088f6c877>] dquot_load_quota_sb+0x2ed/0x770 [<00000000340a4782>] dquot_load_quota_inode+0xc6/0x1c0 [<0000000089a18bd5>] ext4_enable_quotas+0x17e/0x3a0 [ext4] [<000000003a0268fa>] __ext4_fill_super+0x3448/0x3910 [ext4] [<00000000b0f2a8a8>] ext4_fill_super+0x13d/0x340 [ext4] [<000000004a9489c4>] get_tree_bdev+0x1dc/0x370 [<000000006e723bf1>] ext4_get_tree+0x1d/0x30 [ext4] [<00000000c7cb663d>] vfs_get_tree+0x31/0x160 [<00000000320e1bed>] do_new_mount+0x1d5/0x480 [<00000000c074654c>] path_mount+0x22e/0xbe0 [<0000000003e97a8e>] do_mount+0x95/0xc0 [<000000002f3d3736>] __x64_sys_mount+0xc4/0x160 [<0000000027d2140c>] do_syscall_64+0x3f/0x90 ================================================================ To solve this problem, we add a "failed_mount10" tag, and call ext4_quota_off_umount() in this tag to release the enabled qoutas.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/77c3ca1108eb4a26db4f256c42b271a430cebc7d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c327b83c59ee938792a0300df646efac39c7d6a7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d13f99632748462c32fc95d729f5e754bab06064
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/deef86fa3005cbb61ae8aa5729324c09b3f4ba73
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: turn quotas off if mount failed after enabling quotas\n\nYi found during a review of the patch \"ext4: don\u0027t BUG on inconsistent\njournal feature\" that when ext4_mark_recovery_complete() returns an error\nvalue, the error handling path does not turn off the enabled quotas,\nwhich triggers the following kmemleak:\n\n================================================================\nunreferenced object 0xffff8cf68678e7c0 (size 64):\ncomm \"mount\", pid 746, jiffies 4294871231 (age 11.540s)\nhex dump (first 32 bytes):\n00 90 ef 82 f6 8c ff ff 00 00 00 00 41 01 00 00  ............A...\nc7 00 00 00 bd 00 00 00 0a 00 00 00 48 00 00 00  ............H...\nbacktrace:\n[\u003c00000000c561ef24\u003e] __kmem_cache_alloc_node+0x4d4/0x880\n[\u003c00000000d4e621d7\u003e] kmalloc_trace+0x39/0x140\n[\u003c00000000837eee74\u003e] v2_read_file_info+0x18a/0x3a0\n[\u003c0000000088f6c877\u003e] dquot_load_quota_sb+0x2ed/0x770\n[\u003c00000000340a4782\u003e] dquot_load_quota_inode+0xc6/0x1c0\n[\u003c0000000089a18bd5\u003e] ext4_enable_quotas+0x17e/0x3a0 [ext4]\n[\u003c000000003a0268fa\u003e] __ext4_fill_super+0x3448/0x3910 [ext4]\n[\u003c00000000b0f2a8a8\u003e] ext4_fill_super+0x13d/0x340 [ext4]\n[\u003c000000004a9489c4\u003e] get_tree_bdev+0x1dc/0x370\n[\u003c000000006e723bf1\u003e] ext4_get_tree+0x1d/0x30 [ext4]\n[\u003c00000000c7cb663d\u003e] vfs_get_tree+0x31/0x160\n[\u003c00000000320e1bed\u003e] do_new_mount+0x1d5/0x480\n[\u003c00000000c074654c\u003e] path_mount+0x22e/0xbe0\n[\u003c0000000003e97a8e\u003e] do_mount+0x95/0xc0\n[\u003c000000002f3d3736\u003e] __x64_sys_mount+0xc4/0x160\n[\u003c0000000027d2140c\u003e] do_syscall_64+0x3f/0x90\n================================================================\n\nTo solve this problem, we add a \"failed_mount10\" tag, and call\next4_quota_off_umount() in this tag to release the enabled qoutas."
    }
  ],
  "id": "CVE-2023-54153",
  "lastModified": "2025-12-24T13:16:17.307",
  "metrics": {},
  "published": "2025-12-24T13:16:17.307",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/77c3ca1108eb4a26db4f256c42b271a430cebc7d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c327b83c59ee938792a0300df646efac39c7d6a7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d13f99632748462c32fc95d729f5e754bab06064"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/deef86fa3005cbb61ae8aa5729324c09b3f4ba73"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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