{
  "cveId": "CVE-2022-48811",
  "url": "https://patchblox.com/security/cve/CVE-2022-48811",
  "summary": "CVE-2022-48811 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48811, released July 16, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ibmvnic: don\u0027t release napi in __ibmvnic_open()...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ibmvnic: don\u0027t release napi in __ibmvnic_open()  If __ibmvnic_open() encounters an error such as when setting link state, it calls release_resources() which frees the napi structures needlessly. Instead, have __ibmvnic_open() only clean up the work it did so far (i.e. disable napi and irqs) and leave the rest to the callers.  If caller of __ibmvnic_open() is ibmvnic_open(), it should release the resources immediately. If the caller is do_reset() or do_hard_reset(), they will release the resources on the next reset.  This fixes following crash that occurred when running the drmgr command several times to add/remove a vnic interface:  \t[102056] ibmvnic 30000003 env3: Disabling rx_scrq[6] irq \t[102056] ibmvnic 30000003 env3: Disabling rx_scrq[7] irq \t[102056] ibmvnic 30000003 env3: Replenished 8 pools \tKernel attempted to read user page (10) - exploit attempt? (uid: 0) \tBUG: Kernel NULL pointer dereference on read at 0x00000010 \tFaulting instruction address: 0xc000000000a3c840 \tOops: Kernel access of bad area, sig: 11 [#1] \tLE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries \t... \tCPU: 9 PID: 102056 Comm: kworker/9:2 Kdump: loaded Not tainted 5.16.0-rc5-autotest-g6441998e2e37 #1 \tWorkqueue: events_long __ibmvnic_reset [ibmvnic] \tNIP:  c000000000a3c840 LR: c0080000029b5378 CTR: c000000000a3c820 \tREGS: c0000000548e37e0 TRAP: 0300   Not tainted  (5.16.0-rc5-autotest-g6441998e2e37) \tMSR:  8000000000009033 \u003CSF,EE,ME,IR,DR,RI,LE\u003E  CR: 28248484  XER: 00000004 \tCFAR: c0080000029bdd24 DAR: 0000000000000010 DSISR: 40000000 IRQMASK: 0 \tGPR00: c0080000029b55d0 c0000000548e3a80 c0000000028f0200 0000000000000000 \t... \tNIP [c000000000a3c840] napi_enable\u002B0x20/0xc0 \tLR [c0080000029b5378] __ibmvnic_open\u002B0xf0/0x430 [ibmvnic] \tCall Trace: \t[c0000000548e3a80] [0000000000000006] 0x6 (unreliable) \t[c0000000548e3ab0] [c0080000029b55d0] __ibmvnic_open\u002B0x348/0x430 [ibmvnic] \t[c0000000548e3b40] [c0080000029bcc28] __ibmvnic_reset\u002B0x500/0xdf0 [ibmvnic] \t[c0000000548e3c60] [c000000000176228] process_one_work\u002B0x288/0x570 \t[c0000000548e3d00] [c000000000176588] worker_thread\u002B0x78/0x660 \t[c0000000548e3da0] [c0000000001822f0] kthread\u002B0x1c0/0x1d0 \t[c0000000548e3e10] [c00000000000cf64] ret_from_kernel_thread\u002B0x5c/0x64 \tInstruction dump: \t7d2948f8 792307e0 4e800020 60000000 3c4c01eb 384239e0 f821ffd1 39430010 \t38a0fff6 e92d1100 f9210028 39200000 \u003Ce9030010\u003E f9010020 60420000 e9210020 \t---[ end trace 5f8033b08fd27706 ]---",
  "published": "2024-07-16T12:15:05Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00271,
  "epssPercentile": 0.19395,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.16.10-1",
      "fix": "DEBIAN-CVE-2022-48811",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48811",
      "released": "2024-07-16T12:15:05Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.16.10-1",
      "fix": "DEBIAN-CVE-2022-48811",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48811",
      "released": "2024-07-16T12:15:05Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.16.10-1",
      "fix": "DEBIAN-CVE-2022-48811",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48811",
      "released": "2024-07-16T12:15:05Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}