{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Check rcu_read_lock_trace_held() before calling bpf map helpers\n\nThese three bpf_map_{lookup,update,delete}_elem() helpers are also\navailable for sleepable bpf program, so add the corresponding lock\nassertion for sleepable bpf program, otherwise the following warning\nwill be reported when a sleepable bpf program manipulates bpf map under\ninterpreter mode (aka bpf_jit_enable=0):\n\n  WARNING: CPU: 3 PID: 4985 at kernel/bpf/helpers.c:40 ......\n  CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ......\n  RIP: 0010:bpf_map_lookup_elem+0x54/0x60\n  ......\n  Call Trace:\n   <TASK>\n   ? __warn+0xa5/0x240\n   ? bpf_map_lookup_elem+0x54/0x60\n   ? report_bug+0x1ba/0x1f0\n   ? handle_bug+0x40/0x80\n   ? exc_invalid_op+0x18/0x50\n   ? asm_exc_invalid_op+0x1b/0x20\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\n   ? rcu_lockdep_current_cpu_online+0x65/0xb0\n   ? rcu_is_watching+0x23/0x50\n   ? bpf_map_lookup_elem+0x54/0x60\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\n   ___bpf_prog_run+0x513/0x3b70\n   __bpf_prog_run32+0x9d/0xd0\n   ? __bpf_prog_enter_sleepable_recur+0xad/0x120\n   ? __bpf_prog_enter_sleepable_recur+0x3e/0x120\n   bpf_trampoline_6442580665+0x4d/0x1000\n   __x64_sys_getpgid+0x5/0x30\n   ? do_syscall_64+0x36/0xb0\n   entry_SYSCALL_64_after_hwframe+0x6e/0x76\n   </TASK>"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/bpf/helpers.c"
               ],
               "versions": [
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "d6d6fe4bb105",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "483cb92334cd",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "c7f1b6146f4a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "169410eba271",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/bpf/helpers.c"
               ],
               "versions": [
                  {
                     "version": "6.1.77",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.16",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7.4",
                     "lessThanOrEqual": "6.7.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/d6d6fe4bb105595118f12abeed4a7bdd450853f3"
            },
            {
               "url": "https://git.kernel.org/stable/c/483cb92334cd7f1d5387dccc0ab5d595d27a669d"
            },
            {
               "url": "https://git.kernel.org/stable/c/c7f1b6146f4a46d727c0d046284c28b6882c6304"
            },
            {
               "url": "https://git.kernel.org/stable/c/169410eba271afc9f0fb476d996795aa26770c6d"
            }
         ],
         "title": "bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52621",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}