cve-2021-47540
Vulnerability from cvelistv5
Published
2024-05-24 15:09
Modified
2024-12-19 07:44
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode Fix the following NULL pointer dereference in mt7915_get_phy_mode routine adding an ibss interface to the mt7915 driver. [ 101.137097] wlan0: Trigger new scan to find an IBSS to join [ 102.827039] wlan0: Creating new IBSS network, BSSID 26:a4:50:1a:6e:69 [ 103.064756] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 103.073670] Mem abort info: [ 103.076520] ESR = 0x96000005 [ 103.079614] EC = 0x25: DABT (current EL), IL = 32 bits [ 103.084934] SET = 0, FnV = 0 [ 103.088042] EA = 0, S1PTW = 0 [ 103.091215] Data abort info: [ 103.094104] ISV = 0, ISS = 0x00000005 [ 103.098041] CM = 0, WnR = 0 [ 103.101044] user pgtable: 4k pages, 39-bit VAs, pgdp=00000000460b1000 [ 103.107565] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [ 103.116590] Internal error: Oops: 96000005 [#1] SMP [ 103.189066] CPU: 1 PID: 333 Comm: kworker/u4:3 Not tainted 5.10.75 #0 [ 103.195498] Hardware name: MediaTek MT7622 RFB1 board (DT) [ 103.201124] Workqueue: phy0 ieee80211_iface_work [mac80211] [ 103.206695] pstate: 20000005 (nzCv daif -PAN -UAO -TCO BTYPE=--) [ 103.212705] pc : mt7915_get_phy_mode+0x68/0x120 [mt7915e] [ 103.218103] lr : mt7915_mcu_add_bss_info+0x11c/0x760 [mt7915e] [ 103.223927] sp : ffffffc011cdb9e0 [ 103.227235] x29: ffffffc011cdb9e0 x28: ffffff8006563098 [ 103.232545] x27: ffffff8005f4da22 x26: ffffff800685ac40 [ 103.237855] x25: 0000000000000001 x24: 000000000000011f [ 103.243165] x23: ffffff8005f4e260 x22: ffffff8006567918 [ 103.248475] x21: ffffff8005f4df80 x20: ffffff800685ac58 [ 103.253785] x19: ffffff8006744400 x18: 0000000000000000 [ 103.259094] x17: 0000000000000000 x16: 0000000000000001 [ 103.264403] x15: 000899c3a2d9d2e4 x14: 000899bdc3c3a1c8 [ 103.269713] x13: 0000000000000000 x12: 0000000000000000 [ 103.275024] x11: ffffffc010e30c20 x10: 0000000000000000 [ 103.280333] x9 : 0000000000000050 x8 : ffffff8006567d88 [ 103.285642] x7 : ffffff8006563b5c x6 : ffffff8006563b44 [ 103.290952] x5 : 0000000000000002 x4 : 0000000000000001 [ 103.296262] x3 : 0000000000000001 x2 : 0000000000000001 [ 103.301572] x1 : 0000000000000000 x0 : 0000000000000011 [ 103.306882] Call trace: [ 103.309328] mt7915_get_phy_mode+0x68/0x120 [mt7915e] [ 103.314378] mt7915_bss_info_changed+0x198/0x200 [mt7915e] [ 103.319941] ieee80211_bss_info_change_notify+0x128/0x290 [mac80211] [ 103.326360] __ieee80211_sta_join_ibss+0x308/0x6c4 [mac80211] [ 103.332171] ieee80211_sta_create_ibss+0x8c/0x10c [mac80211] [ 103.337895] ieee80211_ibss_work+0x3dc/0x614 [mac80211] [ 103.343185] ieee80211_iface_work+0x388/0x3f0 [mac80211] [ 103.348495] process_one_work+0x288/0x690 [ 103.352499] worker_thread+0x70/0x464 [ 103.356157] kthread+0x144/0x150 [ 103.359380] ret_from_fork+0x10/0x18 [ 103.362952] Code: 394008c3 52800220 394000e4 7100007f (39400023)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/14b03b8cebdf18ff13c39d58501b625411314de2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/932b338f4e5c4cb0c2ed640da3bced1e63620198Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/14b03b8cebdf18ff13c39d58501b625411314de2Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/932b338f4e5c4cb0c2ed640da3bced1e63620198Patch
Impacted products
Vendor Product Version
Linux Linux Version: 37f4ca907c462d7c8a1ac9e7e3473681b5f893dd
Version: 37f4ca907c462d7c8a1ac9e7e3473681b5f893dd
Version: 37f4ca907c462d7c8a1ac9e7e3473681b5f893dd
 Create a notification for this product.
   Linux Linux Version: 5.8
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-04T05:39:59.621Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
               shortName: "CVE",
            },
            references: [
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://git.kernel.org/stable/c/932b338f4e5c4cb0c2ed640da3bced1e63620198",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://git.kernel.org/stable/c/14b03b8cebdf18ff13c39d58501b625411314de2",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://git.kernel.org/stable/c/6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5c",
               },
            ],
            title: "CVE Program Container",
         },
         {
            metrics: [
               {
                  other: {
                     content: {
                        id: "CVE-2021-47540",
                        options: [
                           {
                              Exploitation: "none",
                           },
                           {
                              Automatable: "no",
                           },
                           {
                              "Technical Impact": "partial",
                           },
                        ],
                        role: "CISA Coordinator",
                        timestamp: "2024-09-10T15:35:20.346625Z",
                        version: "2.0.3",
                     },
                     type: "ssvc",
                  },
               },
            ],
            providerMetadata: {
               dateUpdated: "2024-09-11T17:33:20.936Z",
               orgId: "134c704f-9b21-4f2e-91b3-4a467353bcc0",
               shortName: "CISA-ADP",
            },
            title: "CISA ADP Vulnrichment",
         },
      ],
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "drivers/net/wireless/mediatek/mt76/mt7915/mcu.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "932b338f4e5c4cb0c2ed640da3bced1e63620198",
                     status: "affected",
                     version: "37f4ca907c462d7c8a1ac9e7e3473681b5f893dd",
                     versionType: "git",
                  },
                  {
                     lessThan: "14b03b8cebdf18ff13c39d58501b625411314de2",
                     status: "affected",
                     version: "37f4ca907c462d7c8a1ac9e7e3473681b5f893dd",
                     versionType: "git",
                  },
                  {
                     lessThan: "6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5c",
                     status: "affected",
                     version: "37f4ca907c462d7c8a1ac9e7e3473681b5f893dd",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "drivers/net/wireless/mediatek/mt76/mt7915/mcu.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "5.8",
                  },
                  {
                     lessThan: "5.8",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "5.10.*",
                     status: "unaffected",
                     version: "5.10.84",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "5.15.*",
                     status: "unaffected",
                     version: "5.15.7",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "5.16",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode\n\nFix the following NULL pointer dereference in mt7915_get_phy_mode\nroutine adding an ibss interface to the mt7915 driver.\n\n[  101.137097] wlan0: Trigger new scan to find an IBSS to join\n[  102.827039] wlan0: Creating new IBSS network, BSSID 26:a4:50:1a:6e:69\n[  103.064756] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[  103.073670] Mem abort info:\n[  103.076520]   ESR = 0x96000005\n[  103.079614]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  103.084934]   SET = 0, FnV = 0\n[  103.088042]   EA = 0, S1PTW = 0\n[  103.091215] Data abort info:\n[  103.094104]   ISV = 0, ISS = 0x00000005\n[  103.098041]   CM = 0, WnR = 0\n[  103.101044] user pgtable: 4k pages, 39-bit VAs, pgdp=00000000460b1000\n[  103.107565] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000\n[  103.116590] Internal error: Oops: 96000005 [#1] SMP\n[  103.189066] CPU: 1 PID: 333 Comm: kworker/u4:3 Not tainted 5.10.75 #0\n[  103.195498] Hardware name: MediaTek MT7622 RFB1 board (DT)\n[  103.201124] Workqueue: phy0 ieee80211_iface_work [mac80211]\n[  103.206695] pstate: 20000005 (nzCv daif -PAN -UAO -TCO BTYPE=--)\n[  103.212705] pc : mt7915_get_phy_mode+0x68/0x120 [mt7915e]\n[  103.218103] lr : mt7915_mcu_add_bss_info+0x11c/0x760 [mt7915e]\n[  103.223927] sp : ffffffc011cdb9e0\n[  103.227235] x29: ffffffc011cdb9e0 x28: ffffff8006563098\n[  103.232545] x27: ffffff8005f4da22 x26: ffffff800685ac40\n[  103.237855] x25: 0000000000000001 x24: 000000000000011f\n[  103.243165] x23: ffffff8005f4e260 x22: ffffff8006567918\n[  103.248475] x21: ffffff8005f4df80 x20: ffffff800685ac58\n[  103.253785] x19: ffffff8006744400 x18: 0000000000000000\n[  103.259094] x17: 0000000000000000 x16: 0000000000000001\n[  103.264403] x15: 000899c3a2d9d2e4 x14: 000899bdc3c3a1c8\n[  103.269713] x13: 0000000000000000 x12: 0000000000000000\n[  103.275024] x11: ffffffc010e30c20 x10: 0000000000000000\n[  103.280333] x9 : 0000000000000050 x8 : ffffff8006567d88\n[  103.285642] x7 : ffffff8006563b5c x6 : ffffff8006563b44\n[  103.290952] x5 : 0000000000000002 x4 : 0000000000000001\n[  103.296262] x3 : 0000000000000001 x2 : 0000000000000001\n[  103.301572] x1 : 0000000000000000 x0 : 0000000000000011\n[  103.306882] Call trace:\n[  103.309328]  mt7915_get_phy_mode+0x68/0x120 [mt7915e]\n[  103.314378]  mt7915_bss_info_changed+0x198/0x200 [mt7915e]\n[  103.319941]  ieee80211_bss_info_change_notify+0x128/0x290 [mac80211]\n[  103.326360]  __ieee80211_sta_join_ibss+0x308/0x6c4 [mac80211]\n[  103.332171]  ieee80211_sta_create_ibss+0x8c/0x10c [mac80211]\n[  103.337895]  ieee80211_ibss_work+0x3dc/0x614 [mac80211]\n[  103.343185]  ieee80211_iface_work+0x388/0x3f0 [mac80211]\n[  103.348495]  process_one_work+0x288/0x690\n[  103.352499]  worker_thread+0x70/0x464\n[  103.356157]  kthread+0x144/0x150\n[  103.359380]  ret_from_fork+0x10/0x18\n[  103.362952] Code: 394008c3 52800220 394000e4 7100007f (39400023)",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T07:44:28.238Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/932b338f4e5c4cb0c2ed640da3bced1e63620198",
            },
            {
               url: "https://git.kernel.org/stable/c/14b03b8cebdf18ff13c39d58501b625411314de2",
            },
            {
               url: "https://git.kernel.org/stable/c/6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5c",
            },
         ],
         title: "mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2021-47540",
      datePublished: "2024-05-24T15:09:47.256Z",
      dateReserved: "2024-05-24T15:02:54.828Z",
      dateUpdated: "2024-12-19T07:44:28.238Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2021-47540\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-24T15:15:18.147\",\"lastModified\":\"2024-11-21T06:36:29.773\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode\\n\\nFix the following NULL pointer dereference in mt7915_get_phy_mode\\nroutine adding an ibss interface to the mt7915 driver.\\n\\n[  101.137097] wlan0: Trigger new scan to find an IBSS to join\\n[  102.827039] wlan0: Creating new IBSS network, BSSID 26:a4:50:1a:6e:69\\n[  103.064756] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\\n[  103.073670] Mem abort info:\\n[  103.076520]   ESR = 0x96000005\\n[  103.079614]   EC = 0x25: DABT (current EL), IL = 32 bits\\n[  103.084934]   SET = 0, FnV = 0\\n[  103.088042]   EA = 0, S1PTW = 0\\n[  103.091215] Data abort info:\\n[  103.094104]   ISV = 0, ISS = 0x00000005\\n[  103.098041]   CM = 0, WnR = 0\\n[  103.101044] user pgtable: 4k pages, 39-bit VAs, pgdp=00000000460b1000\\n[  103.107565] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000\\n[  103.116590] Internal error: Oops: 96000005 [#1] SMP\\n[  103.189066] CPU: 1 PID: 333 Comm: kworker/u4:3 Not tainted 5.10.75 #0\\n[  103.195498] Hardware name: MediaTek MT7622 RFB1 board (DT)\\n[  103.201124] Workqueue: phy0 ieee80211_iface_work [mac80211]\\n[  103.206695] pstate: 20000005 (nzCv daif -PAN -UAO -TCO BTYPE=--)\\n[  103.212705] pc : mt7915_get_phy_mode+0x68/0x120 [mt7915e]\\n[  103.218103] lr : mt7915_mcu_add_bss_info+0x11c/0x760 [mt7915e]\\n[  103.223927] sp : ffffffc011cdb9e0\\n[  103.227235] x29: ffffffc011cdb9e0 x28: ffffff8006563098\\n[  103.232545] x27: ffffff8005f4da22 x26: ffffff800685ac40\\n[  103.237855] x25: 0000000000000001 x24: 000000000000011f\\n[  103.243165] x23: ffffff8005f4e260 x22: ffffff8006567918\\n[  103.248475] x21: ffffff8005f4df80 x20: ffffff800685ac58\\n[  103.253785] x19: ffffff8006744400 x18: 0000000000000000\\n[  103.259094] x17: 0000000000000000 x16: 0000000000000001\\n[  103.264403] x15: 000899c3a2d9d2e4 x14: 000899bdc3c3a1c8\\n[  103.269713] x13: 0000000000000000 x12: 0000000000000000\\n[  103.275024] x11: ffffffc010e30c20 x10: 0000000000000000\\n[  103.280333] x9 : 0000000000000050 x8 : ffffff8006567d88\\n[  103.285642] x7 : ffffff8006563b5c x6 : ffffff8006563b44\\n[  103.290952] x5 : 0000000000000002 x4 : 0000000000000001\\n[  103.296262] x3 : 0000000000000001 x2 : 0000000000000001\\n[  103.301572] x1 : 0000000000000000 x0 : 0000000000000011\\n[  103.306882] Call trace:\\n[  103.309328]  mt7915_get_phy_mode+0x68/0x120 [mt7915e]\\n[  103.314378]  mt7915_bss_info_changed+0x198/0x200 [mt7915e]\\n[  103.319941]  ieee80211_bss_info_change_notify+0x128/0x290 [mac80211]\\n[  103.326360]  __ieee80211_sta_join_ibss+0x308/0x6c4 [mac80211]\\n[  103.332171]  ieee80211_sta_create_ibss+0x8c/0x10c [mac80211]\\n[  103.337895]  ieee80211_ibss_work+0x3dc/0x614 [mac80211]\\n[  103.343185]  ieee80211_iface_work+0x388/0x3f0 [mac80211]\\n[  103.348495]  process_one_work+0x288/0x690\\n[  103.352499]  worker_thread+0x70/0x464\\n[  103.356157]  kthread+0x144/0x150\\n[  103.359380]  ret_from_fork+0x10/0x18\\n[  103.362952] Code: 394008c3 52800220 394000e4 7100007f (39400023)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mt76: mt7915: corrige la desreferencia del puntero NULL en mt7915_get_phy_mode. Corrija la siguiente desreferencia del puntero NULL en la rutina mt7915_get_phy_mode agregando una interfaz ibss al controlador mt7915. [ 101.137097] wlan0: activa una nueva exploración para encontrar un IBSS al que unirse [ 102.827039] wlan0: crea una nueva red IBSS, BSSID 26:a4:50:1a:6e:69 [ 103.064756] No se puede manejar la desreferencia del puntero NULL del kernel en la dirección virtual 0000000000000000 [ 103.073670] Información de cancelación de memoria: [ 103.076520] ESR = 0x96000005 [ 103.079614] EC = 0x25: DABT (EL actual), IL = 32 bits [ 103.084934] SET = 0, FnV = 0 [ 103.088042] EA = 0, 1PTW = 0 [ 103.091215] Información de cancelación de datos: [ 103.094104] ISV = 0, ISS = 0x00000005 [ 103.098041] CM = 0, WnR = 0 [ 103.101044] tabla de páginas de usuario: páginas de 4k, VA de 39 bits, pgdp=00000000460 b1000 [ 103.107565 ] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [103.116590] Error interno: Ups: 96000005 [#1] SMP [103.189066] CPU: 1 PID: 333 Comunicaciones: kworker/u4:3 No contaminado 5.10.75 #0 [ 103.195498 ] Nombre del hardware: Placa MediaTek MT7622 RFB1 (DT) [103.201124] Cola de trabajo: phy0 ieee80211_iface_work [mac80211] [103.206695] pstate: 20000005 (nzCv daif -PAN -UAO -TCO BTYPE=--) [103.212705] pc: t7915_get_phy_mode+0x68/ 0x120 [MT7915E] [103.218103] LR: MT7915_MCU_ADD_BSS_INFO+0X11C/0X760 [MT7915E] [103.223927] SP: FFFFFFFC011CDB9E0 [103.222235] x29: F8006563098 [103.232545] x27: ffffff8005f4da22 x26: ffffff800685ac40 [103.237855] x25: 000000000000000001 x24: 000000000000011f [ 103.243165] x23: ffffff8005f4e260 x22: ffffff8006567918 [ 103.248475] x21: ffffff8005f4df80 x20: ffffff800685ac58 [ 103.253785] x19: 44400 x18: 0000000000000000 [ 103.259094] x17: 0000000000000000 x16: 0000000000000001 [ 103.264403] x15: 000899c3a2d9d2e4 x14: 99bdc3c3a1c8 [103.269713] x13: 0000000000000000 x12: 0000000000000000 [ 103.275024] x11: ffffffc010e30c20 x10: 0000000000000000 [ 103.280333] x9 : 0000000000000050 x8: ffffff8006567d88 [103.285642] x7: ffffff8006563b5c x6: ffffff8006563b44 [103.290952] x5: 00000000000000002 x4: 0000000000000001 [ 103.2 96262] x3: 0000000000000001 x2: 0000000000000001 [ 103.301572] x1: 0000000000000000 x0: 0000000000000011 [103.306882] Rastreo de llamadas: [103.309328] mt7915_get_phy_mode+0x68/0x120 [mt7915e] [ 378] mt7915_bss_info_changed+0x198/0x200 [mt7915e] [ 103.319941] ieee80211_bss_info_change_notify+0x128/0x290 [mac80211] [ 103.326360] __ieee80211_sta_join_ibss+0x308/0x6c4 [mac80211] [ 103.332171] ieee80211_sta_create_ibss+0x8c/0x10c [mac80211] [ 103.337895] 614 [mac80211] [ 103.343185] ieee80211_iface_work+0x388/0x3f0 [mac80211] [ 103.348495] Process_one_work+0x288/0x690 [ 103.352499] work_thread+0x70/0x464 [ 103.356157] kthread+0x144/0x150 [ 103.359380] ret_from_fork+0x10/0x18 [ 103.362952] Código: 394008c3 52800220 00e4 7100007f (39400023)\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.8\",\"versionEndExcluding\":\"5.10.84\",\"matchCriteriaId\":\"E9314948-D53C-419C-B785-89A3C0B287DE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.7\",\"matchCriteriaId\":\"A696A60B-2782-4119-83DD-1EFFBC903F02\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/14b03b8cebdf18ff13c39d58501b625411314de2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/932b338f4e5c4cb0c2ed640da3bced1e63620198\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/14b03b8cebdf18ff13c39d58501b625411314de2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/932b338f4e5c4cb0c2ed640da3bced1e63620198\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
      vulnrichment: {
         containers: "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/932b338f4e5c4cb0c2ed640da3bced1e63620198\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/14b03b8cebdf18ff13c39d58501b625411314de2\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5c\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:39:59.621Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47540\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T15:35:20.346625Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:16.265Z\"}}], \"cna\": {\"title\": \"mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"37f4ca907c46\", \"lessThan\": \"932b338f4e5c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"37f4ca907c46\", \"lessThan\": \"14b03b8cebdf\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"37f4ca907c46\", \"lessThan\": \"6e53d6d26920\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/wireless/mediatek/mt76/mt7915/mcu.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.8\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.8\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.84\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/wireless/mediatek/mt76/mt7915/mcu.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/932b338f4e5c4cb0c2ed640da3bced1e63620198\"}, {\"url\": \"https://git.kernel.org/stable/c/14b03b8cebdf18ff13c39d58501b625411314de2\"}, {\"url\": \"https://git.kernel.org/stable/c/6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5c\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode\\n\\nFix the following NULL pointer dereference in mt7915_get_phy_mode\\nroutine adding an ibss interface to the mt7915 driver.\\n\\n[  101.137097] wlan0: Trigger new scan to find an IBSS to join\\n[  102.827039] wlan0: Creating new IBSS network, BSSID 26:a4:50:1a:6e:69\\n[  103.064756] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\\n[  103.073670] Mem abort info:\\n[  103.076520]   ESR = 0x96000005\\n[  103.079614]   EC = 0x25: DABT (current EL), IL = 32 bits\\n[  103.084934]   SET = 0, FnV = 0\\n[  103.088042]   EA = 0, S1PTW = 0\\n[  103.091215] Data abort info:\\n[  103.094104]   ISV = 0, ISS = 0x00000005\\n[  103.098041]   CM = 0, WnR = 0\\n[  103.101044] user pgtable: 4k pages, 39-bit VAs, pgdp=00000000460b1000\\n[  103.107565] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000\\n[  103.116590] Internal error: Oops: 96000005 [#1] SMP\\n[  103.189066] CPU: 1 PID: 333 Comm: kworker/u4:3 Not tainted 5.10.75 #0\\n[  103.195498] Hardware name: MediaTek MT7622 RFB1 board (DT)\\n[  103.201124] Workqueue: phy0 ieee80211_iface_work [mac80211]\\n[  103.206695] pstate: 20000005 (nzCv daif -PAN -UAO -TCO BTYPE=--)\\n[  103.212705] pc : mt7915_get_phy_mode+0x68/0x120 [mt7915e]\\n[  103.218103] lr : mt7915_mcu_add_bss_info+0x11c/0x760 [mt7915e]\\n[  103.223927] sp : ffffffc011cdb9e0\\n[  103.227235] x29: ffffffc011cdb9e0 x28: ffffff8006563098\\n[  103.232545] x27: ffffff8005f4da22 x26: ffffff800685ac40\\n[  103.237855] x25: 0000000000000001 x24: 000000000000011f\\n[  103.243165] x23: ffffff8005f4e260 x22: ffffff8006567918\\n[  103.248475] x21: ffffff8005f4df80 x20: ffffff800685ac58\\n[  103.253785] x19: ffffff8006744400 x18: 0000000000000000\\n[  103.259094] x17: 0000000000000000 x16: 0000000000000001\\n[  103.264403] x15: 000899c3a2d9d2e4 x14: 000899bdc3c3a1c8\\n[  103.269713] x13: 0000000000000000 x12: 0000000000000000\\n[  103.275024] x11: ffffffc010e30c20 x10: 0000000000000000\\n[  103.280333] x9 : 0000000000000050 x8 : ffffff8006567d88\\n[  103.285642] x7 : ffffff8006563b5c x6 : ffffff8006563b44\\n[  103.290952] x5 : 0000000000000002 x4 : 0000000000000001\\n[  103.296262] x3 : 0000000000000001 x2 : 0000000000000001\\n[  103.301572] x1 : 0000000000000000 x0 : 0000000000000011\\n[  103.306882] Call trace:\\n[  103.309328]  mt7915_get_phy_mode+0x68/0x120 [mt7915e]\\n[  103.314378]  mt7915_bss_info_changed+0x198/0x200 [mt7915e]\\n[  103.319941]  ieee80211_bss_info_change_notify+0x128/0x290 [mac80211]\\n[  103.326360]  __ieee80211_sta_join_ibss+0x308/0x6c4 [mac80211]\\n[  103.332171]  ieee80211_sta_create_ibss+0x8c/0x10c [mac80211]\\n[  103.337895]  ieee80211_ibss_work+0x3dc/0x614 [mac80211]\\n[  103.343185]  ieee80211_iface_work+0x388/0x3f0 [mac80211]\\n[  103.348495]  process_one_work+0x288/0x690\\n[  103.352499]  worker_thread+0x70/0x464\\n[  103.356157]  kthread+0x144/0x150\\n[  103.359380]  ret_from_fork+0x10/0x18\\n[  103.362952] Code: 394008c3 52800220 394000e4 7100007f (39400023)\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-04T12:07:54.561Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2021-47540\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-04T12:07:54.561Z\", \"dateReserved\": \"2024-05-24T15:02:54.828Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-24T15:09:47.256Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.