{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47540", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-24T15:02:54.828Z", "datePublished": "2024-05-24T15:09:47.256Z", "dateUpdated": "2025-05-04T07:13:08.646Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:13:08.646Z"}, "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)"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/mediatek/mt76/mt7915/mcu.c"], "versions": [{"version": "e57b7901469fc0b021930b83a8094baaf3d81b09", "lessThan": "932b338f4e5c4cb0c2ed640da3bced1e63620198", "status": "affected", "versionType": "git"}, {"version": "e57b7901469fc0b021930b83a8094baaf3d81b09", "lessThan": "14b03b8cebdf18ff13c39d58501b625411314de2", "status": "affected", "versionType": "git"}, {"version": "e57b7901469fc0b021930b83a8094baaf3d81b09", "lessThan": "6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5c", "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/wireless/mediatek/mt76/mt7915/mcu.c"], "versions": [{"version": "5.8", "status": "affected"}, {"version": "0", "lessThan": "5.8", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.84", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.7", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16", "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": "5.8", "versionEndExcluding": "5.10.84"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "5.15.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "5.16"}]}]}], "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-1.2.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.621Z"}, "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"]}]}, {"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"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:20.936Z"}}]}}

{"dataType": "CVE_RECORD", "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": "e57b7901469fc0b021930b83a8094baaf3d81b09", "lessThan": "932b338f4e5c4cb0c2ed640da3bced1e63620198", "versionType": "git"}, {"status": "affected", "version": "e57b7901469fc0b021930b83a8094baaf3d81b09", "lessThan": "14b03b8cebdf18ff13c39d58501b625411314de2", "versionType": "git"}, {"status": "affected", "version": "e57b7901469fc0b021930b83a8094baaf3d81b09", "lessThan": "6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5c", "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-1.2.0"}, "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)"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.84", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.7", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.16", "versionStartIncluding": "5.8"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:13:08.646Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47540", "state": "PUBLISHED", "dateUpdated": "2025-05-04T07:13:08.646Z", "dateReserved": "2024-05-24T15:02:54.828Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-24T15:09:47.256Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E9314948-D53C-419C-B785-89A3C0B287DE", "versionEndExcluding": "5.10.84", "versionStartIncluding": "5.8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A696A60B-2782-4119-83DD-1EFFBC903F02", "versionEndExcluding": "5.15.7", "versionStartIncluding": "5.11", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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 exploraci\u00f3n 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 direcci\u00f3n virtual 0000000000000000 [ 103.073670] Informaci\u00f3n de cancelaci\u00f3n 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] Informaci\u00f3n de cancelaci\u00f3n de datos: [ 103.094104] ISV = 0, ISS = 0x00000005 [ 103.098041] CM = 0, WnR = 0 [ 103.101044] tabla de p\u00e1ginas de usuario: p\u00e1ginas 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] C\u00f3digo: 394008c3 52800220 00e4 7100007f (39400023)"}], "id": "CVE-2021-47540", "lastModified": "2024-11-21T06:36:29.773", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-05-24T15:15:18.147", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "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": "af854a3a-2127-422b-91ae-364da2661108", "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"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode", "id": "2283411", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2283411"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode\nFix the following NULL pointer dereference in mt7915_get_phy_mode\nroutine adding an ibss interface to the mt7915 driver.\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)"], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2021-47540", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47540\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47540\nhttps://lore.kernel.org/linux-cve-announce/2024052439-CVE-2021-47540-3bea@gregkh/T"], "statement": "Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.", "threat_severity": "Moderate"}

{}