{
  "cveId": "CVE-2022-49062",
  "url": "https://patchblox.com/security/cve/CVE-2022-49062",
  "summary": "CVE-2022-49062 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49062, released February 26, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  cachefiles: Fix KASAN slab-out-of-bounds in cach...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  cachefiles: Fix KASAN slab-out-of-bounds in cachefiles_set_volume_xattr  Use the actual length of volume coherency data when setting the xattr to avoid the following KASAN report.   BUG: KASAN: slab-out-of-bounds in cachefiles_set_volume_xattr\u002B0xa0/0x350 [cachefiles]  Write of size 4 at addr ffff888101e02af4 by task kworker/6:0/1347   CPU: 6 PID: 1347 Comm: kworker/6:0 Kdump: loaded Not tainted 5.18.0-rc1-nfs-fscache-netfs\u002B #13  Hardware name: QEMU Standard PC (Q35 \u002B ICH9, 2009), BIOS 1.14.0-4.fc34 04/01/2014  Workqueue: events fscache_create_volume_work [fscache]  Call Trace:   \u003CTASK\u003E   dump_stack_lvl\u002B0x45/0x5a   print_report.cold\u002B0x5e/0x5db   ? __lock_text_start\u002B0x8/0x8   ? cachefiles_set_volume_xattr\u002B0xa0/0x350 [cachefiles]   kasan_report\u002B0xab/0x120   ? cachefiles_set_volume_xattr\u002B0xa0/0x350 [cachefiles]   kasan_check_range\u002B0xf5/0x1d0   memcpy\u002B0x39/0x60   cachefiles_set_volume_xattr\u002B0xa0/0x350 [cachefiles]   cachefiles_acquire_volume\u002B0x2be/0x500 [cachefiles]   ? __cachefiles_free_volume\u002B0x90/0x90 [cachefiles]   fscache_create_volume_work\u002B0x68/0x160 [fscache]   process_one_work\u002B0x3b7/0x6a0   worker_thread\u002B0x2c4/0x650   ? process_one_work\u002B0x6a0/0x6a0   kthread\u002B0x16c/0x1a0   ? kthread_complete_and_exit\u002B0x20/0x20   ret_from_fork\u002B0x22/0x30   \u003C/TASK\u003E   Allocated by task 1347:   kasan_save_stack\u002B0x1e/0x40   __kasan_kmalloc\u002B0x81/0xa0   cachefiles_set_volume_xattr\u002B0x76/0x350 [cachefiles]   cachefiles_acquire_volume\u002B0x2be/0x500 [cachefiles]   fscache_create_volume_work\u002B0x68/0x160 [fscache]   process_one_work\u002B0x3b7/0x6a0   worker_thread\u002B0x2c4/0x650   kthread\u002B0x16c/0x1a0   ret_from_fork\u002B0x22/0x30   The buggy address belongs to the object at ffff888101e02af0  which belongs to the cache kmalloc-8 of size 8  The buggy address is located 4 bytes inside of  8-byte region [ffff888101e02af0, ffff888101e02af8)   The buggy address belongs to the physical page:  page:00000000a2292d70 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101e02  flags: 0x17ffffc0000200(slab|node=0|zone=2|lastcpupid=0x1fffff)  raw: 0017ffffc0000200 0000000000000000 dead000000000001 ffff888100042280  raw: 0000000000000000 0000000080660066 00000001ffffffff 0000000000000000  page dumped because: kasan: bad access detected   Memory state around the buggy address:  ffff888101e02980: fc 00 fc fc fc fc 00 fc fc fc fc 00 fc fc fc fc  ffff888101e02a00: 00 fc fc fc fc 00 fc fc fc fc 00 fc fc fc fc 00  \u003Effff888101e02a80: fc fc fc fc 00 fc fc fc fc 00 fc fc fc fc 04 fc                                                             ^  ffff888101e02b00: fc fc fc 00 fc fc fc fc 00 fc fc fc fc 00 fc fc  ffff888101e02b80: fc fc 00 fc fc fc fc 00 fc fc fc fc 00 fc fc fc  ==================================================================",
  "published": "2025-02-26T07:00:43Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00256,
  "epssPercentile": 0.17351,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.17.6-1",
      "fix": "DEBIAN-CVE-2022-49062",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49062",
      "released": "2025-02-26T07:00:43Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.17.6-1",
      "fix": "DEBIAN-CVE-2022-49062",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49062",
      "released": "2025-02-26T07:00:43Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.17.6-1",
      "fix": "DEBIAN-CVE-2022-49062",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49062",
      "released": "2025-02-26T07:00:43Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}