ghsa-gvh3-4cff-qfpj
Vulnerability from github
Published
2025-01-15 15:31
Modified
2025-01-21 18:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: set ATTR_CTIME flags when setting mtime

David reported that the new warning from setattr_copy_mgtime is coming like the following.

[ 113.215316] ------------[ cut here ]------------ [ 113.215974] WARNING: CPU: 1 PID: 31 at fs/attr.c:300 setattr_copy+0x1ee/0x200 [ 113.219192] CPU: 1 UID: 0 PID: 31 Comm: kworker/1:1 Not tainted 6.13.0-rc1+ #234 [ 113.220127] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014 [ 113.221530] Workqueue: ksmbd-io handle_ksmbd_work [ksmbd] [ 113.222220] RIP: 0010:setattr_copy+0x1ee/0x200 [ 113.222833] Code: 24 28 49 8b 44 24 30 48 89 53 58 89 43 6c 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 48 89 df e8 77 d6 ff ff e9 cd fe ff ff <0f> 0b e9 be fe ff ff 66 0 [ 113.225110] RSP: 0018:ffffaf218010fb68 EFLAGS: 00010202 [ 113.225765] RAX: 0000000000000120 RBX: ffffa446815f8568 RCX: 0000000000000003 [ 113.226667] RDX: ffffaf218010fd38 RSI: ffffa446815f8568 RDI: ffffffff94eb03a0 [ 113.227531] RBP: ffffaf218010fb90 R08: 0000001a251e217d R09: 00000000675259fa [ 113.228426] R10: 0000000002ba8a6d R11: ffffa4468196c7a8 R12: ffffaf218010fd38 [ 113.229304] R13: 0000000000000120 R14: ffffffff94eb03a0 R15: 0000000000000000 [ 113.230210] FS: 0000000000000000(0000) GS:ffffa44739d00000(0000) knlGS:0000000000000000 [ 113.231215] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 113.232055] CR2: 00007efe0053d27e CR3: 000000000331a000 CR4: 00000000000006b0 [ 113.232926] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 113.233812] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 113.234797] Call Trace: [ 113.235116] [ 113.235393] ? __warn+0x73/0xd0 [ 113.235802] ? setattr_copy+0x1ee/0x200 [ 113.236299] ? report_bug+0xf3/0x1e0 [ 113.236757] ? handle_bug+0x4d/0x90 [ 113.237202] ? exc_invalid_op+0x13/0x60 [ 113.237689] ? asm_exc_invalid_op+0x16/0x20 [ 113.238185] ? setattr_copy+0x1ee/0x200 [ 113.238692] btrfs_setattr+0x80/0x820 [btrfs] [ 113.239285] ? get_stack_info_noinstr+0x12/0xf0 [ 113.239857] ? __module_address+0x22/0xa0 [ 113.240368] ? handle_ksmbd_work+0x6e/0x460 [ksmbd] [ 113.240993] ? __module_text_address+0x9/0x50 [ 113.241545] ? __module_address+0x22/0xa0 [ 113.242033] ? unwind_next_frame+0x10e/0x920 [ 113.242600] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 113.243268] notify_change+0x2c2/0x4e0 [ 113.243746] ? stack_depot_save_flags+0x27/0x730 [ 113.244339] ? set_file_basic_info+0x130/0x2b0 [ksmbd] [ 113.244993] set_file_basic_info+0x130/0x2b0 [ksmbd] [ 113.245613] ? process_scheduled_works+0xbe/0x310 [ 113.246181] ? worker_thread+0x100/0x240 [ 113.246696] ? kthread+0xc8/0x100 [ 113.247126] ? ret_from_fork+0x2b/0x40 [ 113.247606] ? ret_from_fork_asm+0x1a/0x30 [ 113.248132] smb2_set_info+0x63f/0xa70 [ksmbd]

ksmbd is trying to set the atime and mtime via notify_change without also setting the ctime. so This patch add ATTR_CTIME flags when setting mtime to avoid a warning.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-57895"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-15T13:15:14Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: set ATTR_CTIME flags when setting mtime\n\nDavid reported that the new warning from setattr_copy_mgtime is coming\nlike the following.\n\n[  113.215316] ------------[ cut here ]------------\n[  113.215974] WARNING: CPU: 1 PID: 31 at fs/attr.c:300 setattr_copy+0x1ee/0x200\n[  113.219192] CPU: 1 UID: 0 PID: 31 Comm: kworker/1:1 Not tainted 6.13.0-rc1+ #234\n[  113.220127] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014\n[  113.221530] Workqueue: ksmbd-io handle_ksmbd_work [ksmbd]\n[  113.222220] RIP: 0010:setattr_copy+0x1ee/0x200\n[  113.222833] Code: 24 28 49 8b 44 24 30 48 89 53 58 89 43 6c 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 48 89 df e8 77 d6 ff ff e9 cd fe ff ff \u003c0f\u003e 0b e9 be fe ff ff 66 0\n[  113.225110] RSP: 0018:ffffaf218010fb68 EFLAGS: 00010202\n[  113.225765] RAX: 0000000000000120 RBX: ffffa446815f8568 RCX: 0000000000000003\n[  113.226667] RDX: ffffaf218010fd38 RSI: ffffa446815f8568 RDI: ffffffff94eb03a0\n[  113.227531] RBP: ffffaf218010fb90 R08: 0000001a251e217d R09: 00000000675259fa\n[  113.228426] R10: 0000000002ba8a6d R11: ffffa4468196c7a8 R12: ffffaf218010fd38\n[  113.229304] R13: 0000000000000120 R14: ffffffff94eb03a0 R15: 0000000000000000\n[  113.230210] FS:  0000000000000000(0000) GS:ffffa44739d00000(0000) knlGS:0000000000000000\n[  113.231215] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  113.232055] CR2: 00007efe0053d27e CR3: 000000000331a000 CR4: 00000000000006b0\n[  113.232926] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  113.233812] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[  113.234797] Call Trace:\n[  113.235116]  \u003cTASK\u003e\n[  113.235393]  ? __warn+0x73/0xd0\n[  113.235802]  ? setattr_copy+0x1ee/0x200\n[  113.236299]  ? report_bug+0xf3/0x1e0\n[  113.236757]  ? handle_bug+0x4d/0x90\n[  113.237202]  ? exc_invalid_op+0x13/0x60\n[  113.237689]  ? asm_exc_invalid_op+0x16/0x20\n[  113.238185]  ? setattr_copy+0x1ee/0x200\n[  113.238692]  btrfs_setattr+0x80/0x820 [btrfs]\n[  113.239285]  ? get_stack_info_noinstr+0x12/0xf0\n[  113.239857]  ? __module_address+0x22/0xa0\n[  113.240368]  ? handle_ksmbd_work+0x6e/0x460 [ksmbd]\n[  113.240993]  ? __module_text_address+0x9/0x50\n[  113.241545]  ? __module_address+0x22/0xa0\n[  113.242033]  ? unwind_next_frame+0x10e/0x920\n[  113.242600]  ? __pfx_stack_trace_consume_entry+0x10/0x10\n[  113.243268]  notify_change+0x2c2/0x4e0\n[  113.243746]  ? stack_depot_save_flags+0x27/0x730\n[  113.244339]  ? set_file_basic_info+0x130/0x2b0 [ksmbd]\n[  113.244993]  set_file_basic_info+0x130/0x2b0 [ksmbd]\n[  113.245613]  ? process_scheduled_works+0xbe/0x310\n[  113.246181]  ? worker_thread+0x100/0x240\n[  113.246696]  ? kthread+0xc8/0x100\n[  113.247126]  ? ret_from_fork+0x2b/0x40\n[  113.247606]  ? ret_from_fork_asm+0x1a/0x30\n[  113.248132]  smb2_set_info+0x63f/0xa70 [ksmbd]\n\nksmbd is trying to set the atime and mtime via notify_change without also\nsetting the ctime. so This patch add ATTR_CTIME flags when setting mtime\nto avoid a warning.",
  "id": "GHSA-gvh3-4cff-qfpj",
  "modified": "2025-01-21T18:31:05Z",
  "published": "2025-01-15T15:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57895"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d7ee876b8b96efc14e177a7fe8d45ac25d68849"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/21e46a79bbe6c4e1aa73b3ed998130f2ff07b128"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52cefcff6a4a814f4f8e357422fcfb71fd2ebf75"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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