{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex\n\nThe carrier_lock spinlock protects the carrier detection. While it is\nheld, framer_get_status() is called which in turn takes a mutex.\nThis is not correct and can lead to a deadlock.\n\nA run with PROVE_LOCKING enabled detected the issue:\n  [ BUG: Invalid wait context ]\n  ...\n  c204ddbc (&framer->mutex){+.+.}-{3:3}, at: framer_get_status+0x40/0x78\n  other info that might help us debug this:\n  context-{4:4}\n  2 locks held by ifconfig/146:\n  #0: c0926a38 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x12c/0x664\n  #1: c2006a40 (&qmc_hdlc->carrier_lock){....}-{2:2}, at: qmc_hdlc_framer_set_carrier+0x30/0x98\n\nAvoid the spinlock usage and convert carrier_lock to a mutex."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/wan/fsl_qmc_hdlc.c"
               ],
               "versions": [
                  {
                     "version": "54762918ca85",
                     "lessThan": "f223d2b4acb7",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "54762918ca85",
                     "lessThan": "c4d6a347ba7b",
                     "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/net/wan/fsl_qmc_hdlc.c"
               ],
               "versions": [
                  {
                     "version": "6.9",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.9",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.4",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/f223d2b4acb7a45a6e0581cb380e1af1a6dc7ab9"
            },
            {
               "url": "https://git.kernel.org/stable/c/c4d6a347ba7babdf9d90a0eb24048c266cae0532"
            }
         ],
         "title": "net: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-43862",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}