cve/published/2022/CVE-2022-49928.json

{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nSUNRPC: Fix null-ptr-deref when xps sysfs alloc failed\n\nThere is a null-ptr-deref when xps sysfs alloc failed:\n  BUG: KASAN: null-ptr-deref in sysfs_do_create_link_sd+0x40/0xd0\n  Read of size 8 at addr 0000000000000030 by task gssproxy/457\n\n  CPU: 5 PID: 457 Comm: gssproxy Not tainted 6.0.0-09040-g02357b27ee03 #9\n  Call Trace:\n   <TASK>\n   dump_stack_lvl+0x34/0x44\n   kasan_report+0xa3/0x120\n   sysfs_do_create_link_sd+0x40/0xd0\n   rpc_sysfs_client_setup+0x161/0x1b0\n   rpc_new_client+0x3fc/0x6e0\n   rpc_create_xprt+0x71/0x220\n   rpc_create+0x1d4/0x350\n   gssp_rpc_create+0xc3/0x160\n   set_gssp_clnt+0xbc/0x140\n   write_gssp+0x116/0x1a0\n   proc_reg_write+0xd6/0x130\n   vfs_write+0x177/0x690\n   ksys_write+0xb9/0x150\n   do_syscall_64+0x35/0x80\n   entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nWhen the xprt_switch sysfs alloc failed, should not add xprt and\nswitch sysfs to it, otherwise, maybe null-ptr-deref; also initialize\nthe 'xps_sysfs' to NULL to avoid oops when destroy it."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/sunrpc/sysfs.c"
               ],
               "versions": [
                  {
                     "version": "baea99445dd4675a834e8a5987d2f368adb62e6c",
                     "lessThan": "d59722d088a9d86ce6d9d39979e5d1d669d249f7",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "baea99445dd4675a834e8a5987d2f368adb62e6c",
                     "lessThan": "7b189b0aa8dab14b49c31c65af8a982e96e25b62",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "baea99445dd4675a834e8a5987d2f368adb62e6c",
                     "lessThan": "cbdeaee94a415800c65a8c3fa04d9664a8b8fb3a",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/sunrpc/sysfs.c"
               ],
               "versions": [
                  {
                     "version": "5.14",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.14",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.15.78",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.0.8",
                     "lessThanOrEqual": "6.0.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.1",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "cpeApplicability": [
            {
               "nodes": [
                  {
                     "operator": "OR",
                     "negate": false,
                     "cpeMatch": [
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.14",
                           "versionEndExcluding": "5.15.78"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.14",
                           "versionEndExcluding": "6.0.8"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.14",
                           "versionEndExcluding": "6.1"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/d59722d088a9d86ce6d9d39979e5d1d669d249f7"
            },
            {
               "url": "https://git.kernel.org/stable/c/7b189b0aa8dab14b49c31c65af8a982e96e25b62"
            },
            {
               "url": "https://git.kernel.org/stable/c/cbdeaee94a415800c65a8c3fa04d9664a8b8fb3a"
            }
         ],
         "title": "SUNRPC: Fix null-ptr-deref when xps sysfs alloc failed",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2022-49928",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}