CVE-2021-47065 (GCVE-0-2021-47065)

Vulnerability from cvelistv5 – Published: 2024-02-29 22:37 – Updated: 2026-05-11 13:47
VLAI
Title
rtw88: Fix array overrun in rtw_get_tx_power_params()
Summary
In the Linux kernel, the following vulnerability has been resolved: rtw88: Fix array overrun in rtw_get_tx_power_params() Using a kernel with the Undefined Behaviour Sanity Checker (UBSAN) enabled, the following array overrun is logged: ================================================================================ UBSAN: array-index-out-of-bounds in /home/finger/wireless-drivers-next/drivers/net/wireless/realtek/rtw88/phy.c:1789:34 index 5 is out of range for type 'u8 [5]' CPU: 2 PID: 84 Comm: kworker/u16:3 Tainted: G O 5.12.0-rc5-00086-gd88bba47038e-dirty #651 Hardware name: TOSHIBA TECRA A50-A/TECRA A50-A, BIOS Version 4.50 09/29/2014 Workqueue: phy0 ieee80211_scan_work [mac80211] Call Trace: dump_stack+0x64/0x7c ubsan_epilogue+0x5/0x40 __ubsan_handle_out_of_bounds.cold+0x43/0x48 rtw_get_tx_power_params+0x83a/drivers/net/wireless/realtek/rtw88/0xad0 [rtw_core] ? rtw_pci_read16+0x20/0x20 [rtw_pci] ? check_hw_ready+0x50/0x90 [rtw_core] rtw_phy_get_tx_power_index+0x4d/0xd0 [rtw_core] rtw_phy_set_tx_power_level+0xee/0x1b0 [rtw_core] rtw_set_channel+0xab/0x110 [rtw_core] rtw_ops_config+0x87/0xc0 [rtw_core] ieee80211_hw_config+0x9d/0x130 [mac80211] ieee80211_scan_state_set_channel+0x81/0x170 [mac80211] ieee80211_scan_work+0x19f/0x2a0 [mac80211] process_one_work+0x1dd/0x3a0 worker_thread+0x49/0x330 ? rescuer_thread+0x3a0/0x3a0 kthread+0x134/0x150 ? kthread_create_worker_on_cpu+0x70/0x70 ret_from_fork+0x22/0x30 ================================================================================ The statement where an array is being overrun is shown in the following snippet: if (rate <= DESC_RATE11M) tx_power = pwr_idx_2g->cck_base[group]; else ====> tx_power = pwr_idx_2g->bw40_base[group]; The associated arrays are defined in main.h as follows: struct rtw_2g_txpwr_idx { u8 cck_base[6]; u8 bw40_base[5]; struct rtw_2g_1s_pwr_idx_diff ht_1s_diff; struct rtw_2g_ns_pwr_idx_diff ht_2s_diff; struct rtw_2g_ns_pwr_idx_diff ht_3s_diff; struct rtw_2g_ns_pwr_idx_diff ht_4s_diff; }; The problem arises because the value of group is 5 for channel 14. The trivial increase in the dimension of bw40_base fails as this struct must match the layout of efuse. The fix is to add the rate as an argument to rtw_get_channel_group() and set the group for channel 14 to 4 if rate <= DESC_RATE11M. This patch fixes commit fa6dfe6bff24 ("rtw88: resolve order of tx power setting routines")
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: fa6dfe6bff246ddd5be3cfe81637f137acd6c294 , < 6b5aa0cf321c25f41e09a61c83ee4dc7ab9549cb (git)
Affected: fa6dfe6bff246ddd5be3cfe81637f137acd6c294 , < 95fb153c6027924cda3422120169d1890737f3a0 (git)
Affected: fa6dfe6bff246ddd5be3cfe81637f137acd6c294 , < 5f3dbced8eaa5c9ed7d6943f3fea99f235a6516a (git)
Affected: fa6dfe6bff246ddd5be3cfe81637f137acd6c294 , < 9cd09722e18a08b6a3d68b8bccfac39ddc22434c (git)
Affected: fa6dfe6bff246ddd5be3cfe81637f137acd6c294 , < 2ff25985ea9ccc6c9af2c77b0b49045adcc62e0e (git)
Create a notification for this product.
Linux Linux Affected: 5.3
Unaffected: 0 , < 5.3 (semver)
Unaffected: 5.4.119 , ≤ 5.4.* (semver)
Unaffected: 5.10.37 , ≤ 5.10.* (semver)
Unaffected: 5.11.21 , ≤ 5.11.* (semver)
Unaffected: 5.12.4 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nrtw88: Fix array overrun in rtw_get_tx_power_params()\\n\\nUsing a kernel with the Undefined Behaviour Sanity Checker (UBSAN) enabled, the\\nfollowing array overrun is logged:\\n\\n================================================================================\\nUBSAN: array-index-out-of-bounds in /home/finger/wireless-drivers-next/drivers/net/wireless/realtek/rtw88/phy.c:1789:34\\nindex 5 is out of range for type \u0027u8 [5]\u0027\\nCPU: 2 PID: 84 Comm: kworker/u16:3 Tainted: G           O      5.12.0-rc5-00086-gd88bba47038e-dirty #651\\nHardware name: TOSHIBA TECRA A50-A/TECRA A50-A, BIOS Version 4.50   09/29/2014\\nWorkqueue: phy0 ieee80211_scan_work [mac80211]\\nCall Trace:\\n dump_stack+0x64/0x7c\\n ubsan_epilogue+0x5/0x40\\n __ubsan_handle_out_of_bounds.cold+0x43/0x48\\n rtw_get_tx_power_params+0x83a/drivers/net/wireless/realtek/rtw88/0xad0 [rtw_core]\\n ? rtw_pci_read16+0x20/0x20 [rtw_pci]\\n ? check_hw_ready+0x50/0x90 [rtw_core]\\n rtw_phy_get_tx_power_index+0x4d/0xd0 [rtw_core]\\n rtw_phy_set_tx_power_level+0xee/0x1b0 [rtw_core]\\n rtw_set_channel+0xab/0x110 [rtw_core]\\n rtw_ops_config+0x87/0xc0 [rtw_core]\\n ieee80211_hw_config+0x9d/0x130 [mac80211]\\n ieee80211_scan_state_set_channel+0x81/0x170 [mac80211]\\n ieee80211_scan_work+0x19f/0x2a0 [mac80211]\\n process_one_work+0x1dd/0x3a0\\n worker_thread+0x49/0x330\\n ? rescuer_thread+0x3a0/0x3a0\\n kthread+0x134/0x150\\n ? kthread_create_worker_on_cpu+0x70/0x70\\n ret_from_fork+0x22/0x30\\n================================================================================\\n\\nThe statement where an array is being overrun is shown in the following snippet:\\n\\n\\tif (rate \u003c= DESC_RATE11M)\\n\\t\\ttx_power = pwr_idx_2g-\u003ecck_base[group];\\n\\telse\\n====\u003e\\t\\ttx_power = pwr_idx_2g-\u003ebw40_base[group];\\n\\nThe associated arrays are defined in main.h as follows:\\n\\nstruct rtw_2g_txpwr_idx {\\n\\tu8 cck_base[6];\\n\\tu8 bw40_base[5];\\n\\tstruct rtw_2g_1s_pwr_idx_diff ht_1s_diff;\\n\\tstruct rtw_2g_ns_pwr_idx_diff ht_2s_diff;\\n\\tstruct rtw_2g_ns_pwr_idx_diff ht_3s_diff;\\n\\tstruct rtw_2g_ns_pwr_idx_diff ht_4s_diff;\\n};\\n\\nThe problem arises because the value of group is 5 for channel 14. The trivial\\nincrease in the dimension of bw40_base fails as this struct must match the layout of\\nefuse. The fix is to add the rate as an argument to rtw_get_channel_group() and set\\nthe group for channel 14 to 4 if rate \u003c= DESC_RATE11M.\\n\\nThis patch fixes commit fa6dfe6bff24 (\\\"rtw88: resolve order of tx power setting routines\\\")\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se resolvi\\u00f3 la siguiente vulnerabilidad: rtw88: corrige el desbordamiento de la matriz en rtw_get_tx_power_params() Al utilizar un kernel con el Verificador de estado de comportamiento indefinido (UBSAN) habilitado, se registra el siguiente desbordamiento de la matriz: ======== ==================================================== ====================== UBSAN: \\u00edndice de matriz fuera de los l\\u00edmites en /home/finger/wireless-drivers-next/drivers/net/wireless /realtek/rtw88/phy.c:1789:34 el \\u00edndice 5 est\\u00e1 fuera de rango para el tipo \u0027u8 [5]\u0027 CPU: 2 PID: 84 Comm: kworker/u16:3 Tainted: GO 5.12.0-rc5-00086- gd88bba47038e-dirty #651 Nombre del hardware: TOSHIBA TECRA A50-A/TECRA A50-A, BIOS versi\\u00f3n 4.50 29/09/2014 Cola de trabajo: phy0 ieee80211_scan_work [mac80211] Seguimiento de llamadas: dump_stack+0x64/0x7c ubsan_epilogue+0x5/0x40 __ubsan _handle_out_of_bounds.cold +0x43/0x48 rtw_get_tx_power_params+0x83a/drivers/net/wireless/realtek/rtw88/0xad0 [rtw_core] ? rtw_pci_read16+0x20/0x20 [rtw_pci] ? check_hw_ready+0x50/0x90 [rtw_core] rtw_phy_get_tx_power_index+0x4d/0xd0 [rtw_core] rtw_phy_set_tx_power_level+0xee/0x1b0 [rtw_core] rtw_set_channel+0xab/0x110 [rtw_core] rtw_ops_config+0x87/0xc 0 [rtw_core] ieee80211_hw_config+0x9d/0x130 [mac80211] ieee80211_scan_state_set_channel+ 0x81/0x170 [mac80211] ieee80211_scan_work+0x19f/0x2a0 [mac80211] Process_one_work+0x1dd/0x3a0 trabajador_thread+0x49/0x330? hilo_rescate+0x3a0/0x3a0 kthread+0x134/0x150 ? kthread_create_worker_on_cpu+0x70/0x70 ret_from_fork+0x22/0x30 ========================================== ========================================= Se muestra la declaraci\\u00f3n donde se est\\u00e1 invadiendo una matriz en el siguiente fragmento: if (rate \u0026lt;= DESC_RATE11M) tx_power = pwr_idx_2g-\u0026gt;cck_base[group]; else ====\u0026gt; tx_power = pwr_idx_2g-\u0026gt;bw40_base[grupo]; Las matrices asociadas se definen en main.h de la siguiente manera: struct rtw_2g_txpwr_idx { u8 cck_base[6]; u8 bw40_base[5]; estructura rtw_2g_1s_pwr_idx_diff ht_1s_diff; estructura rtw_2g_ns_pwr_idx_diff ht_2s_diff; estructura rtw_2g_ns_pwr_idx_diff ht_3s_diff; estructura rtw_2g_ns_pwr_idx_diff ht_4s_diff; }; El problema surge porque el valor del grupo es 5 para el canal 14. El aumento trivial en la dimensi\\u00f3n de bw40_base falla ya que esta estructura debe coincidir con el dise\\u00f1o de efuse. La soluci\\u00f3n es agregar la tasa como argumento a rtw_get_channel_group() y configurar el grupo para el canal 14 en 4 si la tasa \u0026lt;= DESC_RATE11M. Este parche corrige la confirmaci\\u00f3n fa6dfe6bff24 (\\\"rtw88: resolver el orden de las rutinas de configuraci\\u00f3n de energ\\u00eda de transmisi\\u00f3n\\\")\"}]",
      "id": "CVE-2021-47065",
      "lastModified": "2024-12-10T17:54:50.497",
      "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:H/I:H/A:H\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 5.9}]}",
      "published": "2024-02-29T23:15:08.000",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/2ff25985ea9ccc6c9af2c77b0b49045adcc62e0e\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/5f3dbced8eaa5c9ed7d6943f3fea99f235a6516a\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/6b5aa0cf321c25f41e09a61c83ee4dc7ab9549cb\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/95fb153c6027924cda3422120169d1890737f3a0\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/9cd09722e18a08b6a3d68b8bccfac39ddc22434c\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/2ff25985ea9ccc6c9af2c77b0b49045adcc62e0e\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/5f3dbced8eaa5c9ed7d6943f3fea99f235a6516a\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/6b5aa0cf321c25f41e09a61c83ee4dc7ab9549cb\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/95fb153c6027924cda3422120169d1890737f3a0\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/9cd09722e18a08b6a3d68b8bccfac39ddc22434c\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-129\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47065\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-29T23:15:08.000\",\"lastModified\":\"2026-06-17T04:16:21.910\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nrtw88: Fix array overrun in rtw_get_tx_power_params()\\n\\nUsing a kernel with the Undefined Behaviour Sanity Checker (UBSAN) enabled, the\\nfollowing array overrun is logged:\\n\\n================================================================================\\nUBSAN: array-index-out-of-bounds in /home/finger/wireless-drivers-next/drivers/net/wireless/realtek/rtw88/phy.c:1789:34\\nindex 5 is out of range for type \u0027u8 [5]\u0027\\nCPU: 2 PID: 84 Comm: kworker/u16:3 Tainted: G           O      5.12.0-rc5-00086-gd88bba47038e-dirty #651\\nHardware name: TOSHIBA TECRA A50-A/TECRA A50-A, BIOS Version 4.50   09/29/2014\\nWorkqueue: phy0 ieee80211_scan_work [mac80211]\\nCall Trace:\\n dump_stack+0x64/0x7c\\n ubsan_epilogue+0x5/0x40\\n __ubsan_handle_out_of_bounds.cold+0x43/0x48\\n rtw_get_tx_power_params+0x83a/drivers/net/wireless/realtek/rtw88/0xad0 [rtw_core]\\n ? rtw_pci_read16+0x20/0x20 [rtw_pci]\\n ? check_hw_ready+0x50/0x90 [rtw_core]\\n rtw_phy_get_tx_power_index+0x4d/0xd0 [rtw_core]\\n rtw_phy_set_tx_power_level+0xee/0x1b0 [rtw_core]\\n rtw_set_channel+0xab/0x110 [rtw_core]\\n rtw_ops_config+0x87/0xc0 [rtw_core]\\n ieee80211_hw_config+0x9d/0x130 [mac80211]\\n ieee80211_scan_state_set_channel+0x81/0x170 [mac80211]\\n ieee80211_scan_work+0x19f/0x2a0 [mac80211]\\n process_one_work+0x1dd/0x3a0\\n worker_thread+0x49/0x330\\n ? rescuer_thread+0x3a0/0x3a0\\n kthread+0x134/0x150\\n ? kthread_create_worker_on_cpu+0x70/0x70\\n ret_from_fork+0x22/0x30\\n================================================================================\\n\\nThe statement where an array is being overrun is shown in the following snippet:\\n\\n\\tif (rate \u003c= DESC_RATE11M)\\n\\t\\ttx_power = pwr_idx_2g-\u003ecck_base[group];\\n\\telse\\n====\u003e\\t\\ttx_power = pwr_idx_2g-\u003ebw40_base[group];\\n\\nThe associated arrays are defined in main.h as follows:\\n\\nstruct rtw_2g_txpwr_idx {\\n\\tu8 cck_base[6];\\n\\tu8 bw40_base[5];\\n\\tstruct rtw_2g_1s_pwr_idx_diff ht_1s_diff;\\n\\tstruct rtw_2g_ns_pwr_idx_diff ht_2s_diff;\\n\\tstruct rtw_2g_ns_pwr_idx_diff ht_3s_diff;\\n\\tstruct rtw_2g_ns_pwr_idx_diff ht_4s_diff;\\n};\\n\\nThe problem arises because the value of group is 5 for channel 14. The trivial\\nincrease in the dimension of bw40_base fails as this struct must match the layout of\\nefuse. The fix is to add the rate as an argument to rtw_get_channel_group() and set\\nthe group for channel 14 to 4 if rate \u003c= DESC_RATE11M.\\n\\nThis patch fixes commit fa6dfe6bff24 (\\\"rtw88: resolve order of tx power setting routines\\\")\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: rtw88: corrige el desbordamiento de la matriz en rtw_get_tx_power_params() Al utilizar un kernel con el Verificador de estado de comportamiento indefinido (UBSAN) habilitado, se registra el siguiente desbordamiento de la matriz: ======== ==================================================== ====================== UBSAN: \u00edndice de matriz fuera de los l\u00edmites en /home/finger/wireless-drivers-next/drivers/net/wireless /realtek/rtw88/phy.c:1789:34 el \u00edndice 5 est\u00e1 fuera de rango para el tipo \u0027u8 [5]\u0027 CPU: 2 PID: 84 Comm: kworker/u16:3 Tainted: GO 5.12.0-rc5-00086- gd88bba47038e-dirty #651 Nombre del hardware: TOSHIBA TECRA A50-A/TECRA A50-A, BIOS versi\u00f3n 4.50 29/09/2014 Cola de trabajo: phy0 ieee80211_scan_work [mac80211] Seguimiento de llamadas: dump_stack+0x64/0x7c ubsan_epilogue+0x5/0x40 __ubsan _handle_out_of_bounds.cold +0x43/0x48 rtw_get_tx_power_params+0x83a/drivers/net/wireless/realtek/rtw88/0xad0 [rtw_core] ? rtw_pci_read16+0x20/0x20 [rtw_pci] ? check_hw_ready+0x50/0x90 [rtw_core] rtw_phy_get_tx_power_index+0x4d/0xd0 [rtw_core] rtw_phy_set_tx_power_level+0xee/0x1b0 [rtw_core] rtw_set_channel+0xab/0x110 [rtw_core] rtw_ops_config+0x87/0xc 0 [rtw_core] ieee80211_hw_config+0x9d/0x130 [mac80211] ieee80211_scan_state_set_channel+ 0x81/0x170 [mac80211] ieee80211_scan_work+0x19f/0x2a0 [mac80211] Process_one_work+0x1dd/0x3a0 trabajador_thread+0x49/0x330? hilo_rescate+0x3a0/0x3a0 kthread+0x134/0x150 ? kthread_create_worker_on_cpu+0x70/0x70 ret_from_fork+0x22/0x30 ========================================== ========================================= Se muestra la declaraci\u00f3n donde se est\u00e1 invadiendo una matriz en el siguiente fragmento: if (rate \u0026lt;= DESC_RATE11M) tx_power = pwr_idx_2g-\u0026gt;cck_base[group]; else ====\u0026gt; tx_power = pwr_idx_2g-\u0026gt;bw40_base[grupo]; Las matrices asociadas se definen en main.h de la siguiente manera: struct rtw_2g_txpwr_idx { u8 cck_base[6]; u8 bw40_base[5]; estructura rtw_2g_1s_pwr_idx_diff ht_1s_diff; estructura rtw_2g_ns_pwr_idx_diff ht_2s_diff; estructura rtw_2g_ns_pwr_idx_diff ht_3s_diff; estructura rtw_2g_ns_pwr_idx_diff ht_4s_diff; }; El problema surge porque el valor del grupo es 5 para el canal 14. El aumento trivial en la dimensi\u00f3n de bw40_base falla ya que esta estructura debe coincidir con el dise\u00f1o de efuse. La soluci\u00f3n es agregar la tasa como argumento a rtw_get_channel_group() y configurar el grupo para el canal 14 en 4 si la tasa \u0026lt;= DESC_RATE11M. Este parche corrige la confirmaci\u00f3n fa6dfe6bff24 (\\\"rtw88: resolver el orden de las rutinas de configuraci\u00f3n de energ\u00eda de transmisi\u00f3n\\\")\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/wireless/realtek/rtw88/phy.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"fa6dfe6bff246ddd5be3cfe81637f137acd6c294\",\"lessThan\":\"6b5aa0cf321c25f41e09a61c83ee4dc7ab9549cb\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fa6dfe6bff246ddd5be3cfe81637f137acd6c294\",\"lessThan\":\"95fb153c6027924cda3422120169d1890737f3a0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fa6dfe6bff246ddd5be3cfe81637f137acd6c294\",\"lessThan\":\"5f3dbced8eaa5c9ed7d6943f3fea99f235a6516a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fa6dfe6bff246ddd5be3cfe81637f137acd6c294\",\"lessThan\":\"9cd09722e18a08b6a3d68b8bccfac39ddc22434c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fa6dfe6bff246ddd5be3cfe81637f137acd6c294\",\"lessThan\":\"2ff25985ea9ccc6c9af2c77b0b49045adcc62e0e\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/wireless/realtek/rtw88/phy.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.3\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.3\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.119\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.37\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.11.21\",\"lessThanOrEqual\":\"5.11.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.12.4\",\"lessThanOrEqual\":\"5.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.13\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"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:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-03-06T19:40:45.781001Z\",\"id\":\"CVE-2021-47065\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA 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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T14:16:23+00:00",
      "cve": "CVE-2021-47065",
      "id": "CVE-2021-47065",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "156",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: rtw88: Fix array overrun in rtw_get_tx_power_params()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47065.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-06-06T06:07:59Z",
      "cve": "CVE-2021-47065",
      "id": "CVE-2021-47065",
      "initial_release_date": "2024-03-02T05:48:50Z",
      "product_status:known_affected": "376",
      "product_status:known_not_affected": "191",
      "product_status:recommended": "137",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-47065",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-47065.json",
      "version": "38"
    },
    "vulnrichment": {
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\"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-03-06T19:40:45.781001Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T19:01:16.171Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"rtw88: Fix array overrun in rtw_get_tx_power_params()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"fa6dfe6bff246ddd5be3cfe81637f137acd6c294\", \"lessThan\": \"6b5aa0cf321c25f41e09a61c83ee4dc7ab9549cb\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fa6dfe6bff246ddd5be3cfe81637f137acd6c294\", \"lessThan\": \"95fb153c6027924cda3422120169d1890737f3a0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fa6dfe6bff246ddd5be3cfe81637f137acd6c294\", \"lessThan\": \"5f3dbced8eaa5c9ed7d6943f3fea99f235a6516a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fa6dfe6bff246ddd5be3cfe81637f137acd6c294\", \"lessThan\": \"9cd09722e18a08b6a3d68b8bccfac39ddc22434c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fa6dfe6bff246ddd5be3cfe81637f137acd6c294\", \"lessThan\": \"2ff25985ea9ccc6c9af2c77b0b49045adcc62e0e\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/wireless/realtek/rtw88/phy.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.3\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.3\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.119\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.37\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.11.21\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.11.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/wireless/realtek/rtw88/phy.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/6b5aa0cf321c25f41e09a61c83ee4dc7ab9549cb\"}, {\"url\": \"https://git.kernel.org/stable/c/95fb153c6027924cda3422120169d1890737f3a0\"}, {\"url\": \"https://git.kernel.org/stable/c/5f3dbced8eaa5c9ed7d6943f3fea99f235a6516a\"}, {\"url\": \"https://git.kernel.org/stable/c/9cd09722e18a08b6a3d68b8bccfac39ddc22434c\"}, {\"url\": \"https://git.kernel.org/stable/c/2ff25985ea9ccc6c9af2c77b0b49045adcc62e0e\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nrtw88: Fix array overrun in rtw_get_tx_power_params()\\n\\nUsing a kernel with the Undefined Behaviour Sanity Checker (UBSAN) enabled, the\\nfollowing array overrun is logged:\\n\\n================================================================================\\nUBSAN: array-index-out-of-bounds in /home/finger/wireless-drivers-next/drivers/net/wireless/realtek/rtw88/phy.c:1789:34\\nindex 5 is out of range for type \u0027u8 [5]\u0027\\nCPU: 2 PID: 84 Comm: kworker/u16:3 Tainted: G           O      5.12.0-rc5-00086-gd88bba47038e-dirty #651\\nHardware name: TOSHIBA TECRA A50-A/TECRA A50-A, BIOS Version 4.50   09/29/2014\\nWorkqueue: phy0 ieee80211_scan_work [mac80211]\\nCall Trace:\\n dump_stack+0x64/0x7c\\n ubsan_epilogue+0x5/0x40\\n __ubsan_handle_out_of_bounds.cold+0x43/0x48\\n rtw_get_tx_power_params+0x83a/drivers/net/wireless/realtek/rtw88/0xad0 [rtw_core]\\n ? rtw_pci_read16+0x20/0x20 [rtw_pci]\\n ? check_hw_ready+0x50/0x90 [rtw_core]\\n rtw_phy_get_tx_power_index+0x4d/0xd0 [rtw_core]\\n rtw_phy_set_tx_power_level+0xee/0x1b0 [rtw_core]\\n rtw_set_channel+0xab/0x110 [rtw_core]\\n rtw_ops_config+0x87/0xc0 [rtw_core]\\n ieee80211_hw_config+0x9d/0x130 [mac80211]\\n ieee80211_scan_state_set_channel+0x81/0x170 [mac80211]\\n ieee80211_scan_work+0x19f/0x2a0 [mac80211]\\n process_one_work+0x1dd/0x3a0\\n worker_thread+0x49/0x330\\n ? rescuer_thread+0x3a0/0x3a0\\n kthread+0x134/0x150\\n ? kthread_create_worker_on_cpu+0x70/0x70\\n ret_from_fork+0x22/0x30\\n================================================================================\\n\\nThe statement where an array is being overrun is shown in the following snippet:\\n\\n\\tif (rate \u003c= DESC_RATE11M)\\n\\t\\ttx_power = pwr_idx_2g-\u003ecck_base[group];\\n\\telse\\n====\u003e\\t\\ttx_power = pwr_idx_2g-\u003ebw40_base[group];\\n\\nThe associated arrays are defined in main.h as follows:\\n\\nstruct rtw_2g_txpwr_idx {\\n\\tu8 cck_base[6];\\n\\tu8 bw40_base[5];\\n\\tstruct rtw_2g_1s_pwr_idx_diff ht_1s_diff;\\n\\tstruct rtw_2g_ns_pwr_idx_diff ht_2s_diff;\\n\\tstruct rtw_2g_ns_pwr_idx_diff ht_3s_diff;\\n\\tstruct rtw_2g_ns_pwr_idx_diff ht_4s_diff;\\n};\\n\\nThe problem arises because the value of group is 5 for channel 14. The trivial\\nincrease in the dimension of bw40_base fails as this struct must match the layout of\\nefuse. The fix is to add the rate as an argument to rtw_get_channel_group() and set\\nthe group for channel 14 to 4 if rate \u003c= DESC_RATE11M.\\n\\nThis patch fixes commit fa6dfe6bff24 (\\\"rtw88: resolve order of tx power setting routines\\\")\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.119\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.37\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.11.21\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.12.4\", \"versionStartIncluding\": \"5.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.13\", \"versionStartIncluding\": \"5.3\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:03:28.649Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47065\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:03:28.649Z\", \"dateReserved\": \"2024-02-29T22:33:44.296Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-29T22:37:39.135Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.