{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-38164",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-38164"
  ],
  "published": "2025-07-03T08:36:23Z",
  "summary": "f2fs: zone: fix to avoid inconsistence in between SIT and SSA",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: zone: fix to avoid inconsistence in between SIT and SSA\n\nw/ below testcase, it will cause inconsistence in between SIT and SSA.\n\ncreate_null_blk 512 2 1024 1024\nmkfs.f2fs -m /dev/nullb0\nmount /dev/nullb0 /mnt/f2fs/\ntouch /mnt/f2fs/file\nf2fs_io pinfile set /mnt/f2fs/file\nfallocate -l 4GiB /mnt/f2fs/file\n\nF2FS-fs (nullb0): Inconsistent segment (0) type [1, 0] in SSA and SIT\nCPU: 5 UID: 0 PID: 2398 Comm: fallocate Tainted: G           O       6.13.0-rc1 #84\nTainted: [O]=OOT_MODULE\nHardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006\nCall Trace:\n <TASK>\n dump_stack_lvl+0xb3/0xd0\n dump_stack+0x14/0x20\n f2fs_handle_critical_error+0x18c/0x220 [f2fs]\n f2fs_stop_checkpoint+0x38/0x50 [f2fs]\n do_garbage_collect+0x674/0x6e0 [f2fs]\n f2fs_gc_range+0x12b/0x230 [f2fs]\n f2fs_allocate_pinning_section+0x5c/0x150 [f2fs]\n f2fs_expand_inode_data+0x1cc/0x3c0 [f2fs]\n f2fs_fallocate+0x3c3/0x410 [f2fs]\n vfs_fallocate+0x15f/0x4b0\n __x64_sys_fallocate+0x4a/0x80\n x64_sys_call+0x15e8/0x1b80\n do_syscall_64+0x68/0x130\n entry_SYSCALL_64_after_hwframe+0x67/0x6f\nRIP: 0033:0x7f9dba5197ca\nF2FS-fs (nullb0): Stopped filesystem due to reason: 4\n\nThe reason is f2fs_gc_range() may try to migrate block in curseg, however,\nits SSA block is not uptodate due to the last summary block data is still\nin cache of curseg.\n\nIn this patch, we add a condition in f2fs_gc_range() to check whether\nsection is opened or not, and skip block migration for opened section.",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-38164"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d1365d2abfaf2d85ee51a005da3ca373aea97f6a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/44a51592ac657d8e422585414d7ec17a5b50fb0e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8d9431b0d11a5030aa1ce477defee455b3821701"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/773704c1ef96a8b70d0d186ab725f50548de82c4"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T12:19:11Z"
  }
}