{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: fix reconnection fail due to reserved tag allocation\n\nWe found a issue on production environment while using NVMe over RDMA,\nadmin_q reconnect failed forever while remote target and network is ok.\nAfter dig into it, we found it may caused by a ABBA deadlock due to tag\nallocation. In my case, the tag was hold by a keep alive request\nwaiting inside admin_q, as we quiesced admin_q while reset ctrl, so the\nrequest maked as idle and will not process before reset success. As\nfabric_q shares tagset with admin_q, while reconnect remote target, we\nneed a tag for connect command, but the only one reserved tag was held\nby keep alive command which waiting inside admin_q. As a result, we\nfailed to reconnect admin_q forever. In order to fix this issue, I\nthink we should keep two reserved tags for admin queue."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/nvme/host/core.c",
                  "drivers/nvme/host/fabrics.h"
               ],
               "versions": [
                  {
                     "version": "ed01fee283a0",
                     "lessThan": "149afee5c741",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ed01fee283a0",
                     "lessThan": "ff2f90f88d78",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ed01fee283a0",
                     "lessThan": "6851778504cd",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ed01fee283a0",
                     "lessThan": "262da920896e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ed01fee283a0",
                     "lessThan": "de105068fead",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/nvme/host/core.c",
                  "drivers/nvme/host/fabrics.h"
               ],
               "versions": [
                  {
                     "version": "5.12",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.12",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.83",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.23",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7.11",
                     "lessThanOrEqual": "6.7.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8.2",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/149afee5c7418ec5db9d7387b9c9a5c1eb7ea2a8"
            },
            {
               "url": "https://git.kernel.org/stable/c/ff2f90f88d78559802466ad1c84ac5bda4416b3a"
            },
            {
               "url": "https://git.kernel.org/stable/c/6851778504cdb49431809b4ba061903d5f592c96"
            },
            {
               "url": "https://git.kernel.org/stable/c/262da920896e2f2ab0e3947d9dbee0aa09045818"
            },
            {
               "url": "https://git.kernel.org/stable/c/de105068fead55ed5c07ade75e9c8e7f86a00d1d"
            }
         ],
         "title": "nvme: fix reconnection fail due to reserved tag allocation",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-27435",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}