{
  "threat_severity" : "Moderate",
  "public_date" : "2025-02-26T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: xprtrdma: treat all calls not a bcall when bc_serv is NULL",
    "id" : "2347881",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2347881"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-476",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nxprtrdma: treat all calls not a bcall when bc_serv is NULL\nWhen a rdma server returns a fault format reply, nfs v3 client may\ntreats it as a bcall when bc service is not exist.\nThe debug message at rpcrdma_bc_receive_call are,\n[56579.837169] RPC:       rpcrdma_bc_receive_call: callback XID\n00000001, length=20\n[56579.837174] RPC:       rpcrdma_bc_receive_call: 00 00 00 01 00 00 00\n00 00 00 00 00 00 00 00 00 00 00 00 04\nAfter that, rpcrdma_bc_receive_call will meets NULL pointer as,\n[  226.057890] BUG: unable to handle kernel NULL pointer dereference at\n00000000000000c8\n...\n[  226.058704] RIP: 0010:_raw_spin_lock+0xc/0x20\n...\n[  226.059732] Call Trace:\n[  226.059878]  rpcrdma_bc_receive_call+0x138/0x327 [rpcrdma]\n[  226.060011]  __ib_process_cq+0x89/0x170 [ib_core]\n[  226.060092]  ib_cq_poll_work+0x26/0x80 [ib_core]\n[  226.060257]  process_one_work+0x1a7/0x360\n[  226.060367]  ? create_worker+0x1a0/0x1a0\n[  226.060440]  worker_thread+0x30/0x390\n[  226.060500]  ? create_worker+0x1a0/0x1a0\n[  226.060574]  kthread+0x116/0x130\n[  226.060661]  ? kthread_flush_work_fn+0x10/0x10\n[  226.060724]  ret_from_fork+0x35/0x40\n..." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-11-07T00:00:00Z",
    "advisory" : "RHSA-2023:6583",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-362.8.1.el9_3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-11-07T00:00:00Z",
    "advisory" : "RHSA-2023:6583",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-362.8.1.el9_3"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2022-49321\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49321\nhttps://lore.kernel.org/linux-cve-announce/2025022637-CVE-2022-49321-6cf0@gregkh/T" ],
  "name" : "CVE-2022-49321",
  "csaw" : false
}