{
  "cveId": "CVE-2022-48751",
  "url": "https://patchblox.com/security/cve/CVE-2022-48751",
  "summary": "CVE-2022-48751 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48751, released June 20, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  net/smc: Transitional solution for clcsock race...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  net/smc: Transitional solution for clcsock race issue  We encountered a crash in smc_setsockopt() and it is caused by accessing smc-\u003Eclcsock after clcsock was released.   BUG: kernel NULL pointer dereference, address: 0000000000000020  #PF: supervisor read access in kernel mode  #PF: error_code(0x0000) - not-present page  PGD 0 P4D 0  Oops: 0000 [#1] PREEMPT SMP PTI  CPU: 1 PID: 50309 Comm: nginx Kdump: loaded Tainted: G E     5.16.0-rc4\u002B #53  RIP: 0010:smc_setsockopt\u002B0x59/0x280 [smc]  Call Trace:   \u003CTASK\u003E   __sys_setsockopt\u002B0xfc/0x190   __x64_sys_setsockopt\u002B0x20/0x30   do_syscall_64\u002B0x34/0x90   entry_SYSCALL_64_after_hwframe\u002B0x44/0xae  RIP: 0033:0x7f16ba83918e   \u003C/TASK\u003E  This patch tries to fix it by holding clcsock_release_lock and checking whether clcsock has already been released before access.  In case that a crash of the same reason happens in smc_getsockopt() or smc_switch_to_fallback(), this patch also checkes smc-\u003Eclcsock in them too. And the caller of smc_switch_to_fallback() will identify whether fallback succeeds according to the return value.",
  "published": "2024-06-20T12:15:13Z",
  "severity": "medium",
  "cvss": 4.7,
  "cvssVector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00221,
  "epssPercentile": 0.12706,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.16.7-1",
      "fix": "DEBIAN-CVE-2022-48751",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48751",
      "released": "2024-06-20T12:15:13Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.16.7-1",
      "fix": "DEBIAN-CVE-2022-48751",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48751",
      "released": "2024-06-20T12:15:13Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.16.7-1",
      "fix": "DEBIAN-CVE-2022-48751",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48751",
      "released": "2024-06-20T12:15:13Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}