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cvelist/2021/47xxx/CVE-2021-47633.json
CVE Team dc66c15eff
"-Synchronized-Data."
2025-02-26 02:00:58 +00:00

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{
"data_version": "4.0",
"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2021-47633",
"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
},
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111\n\nThe bug was found during fuzzing. Stacktrace locates it in\nath5k_eeprom_convert_pcal_info_5111.\nWhen none of the curve is selected in the loop, idx can go\nup to AR5K_EEPROM_N_PD_CURVES. The line makes pd out of bound.\npd = &chinfo[pier].pd_curves[idx];\n\nThere are many OOB writes using pd later in the code. So I\nadded a sanity check for idx. Checks for other loops involving\nAR5K_EEPROM_N_PD_CURVES are not needed as the loop index is not\nused outside the loops.\n\nThe patch is NOT tested with real device.\n\nThe following is the fuzzing report\n\nBUG: KASAN: slab-out-of-bounds in ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]\nWrite of size 1 at addr ffff8880174a4d60 by task modprobe/214\n\nCPU: 0 PID: 214 Comm: modprobe Not tainted 5.6.0 #1\nCall Trace:\n dump_stack+0x76/0xa0\n print_address_description.constprop.0+0x16/0x200\n ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]\n ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]\n __kasan_report.cold+0x37/0x7c\n ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]\n kasan_report+0xe/0x20\n ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]\n ? apic_timer_interrupt+0xa/0x20\n ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k]\n ? ath5k_pci_eeprom_read+0x228/0x3c0 [ath5k]\n ath5k_eeprom_init+0x2513/0x6290 [ath5k]\n ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k]\n ? usleep_range+0xb8/0x100\n ? apic_timer_interrupt+0xa/0x20\n ? ath5k_eeprom_read_pcal_info_2413+0x2f20/0x2f20 [ath5k]\n ath5k_hw_init+0xb60/0x1970 [ath5k]\n ath5k_init_ah+0x6fe/0x2530 [ath5k]\n ? kasprintf+0xa6/0xe0\n ? ath5k_stop+0x140/0x140 [ath5k]\n ? _dev_notice+0xf6/0xf6\n ? apic_timer_interrupt+0xa/0x20\n ath5k_pci_probe.cold+0x29a/0x3d6 [ath5k]\n ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k]\n ? mutex_lock+0x89/0xd0\n ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k]\n local_pci_probe+0xd3/0x160\n pci_device_probe+0x23f/0x3e0\n ? pci_device_remove+0x280/0x280\n ? pci_device_remove+0x280/0x280\n really_probe+0x209/0x5d0"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "Linux",
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"version_value": "f4de974019a0adf34d0e7de6b86252f1bd266b06"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "4.9.311",
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.14.276",
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.19.238",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.189",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.111",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.34",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
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},
{
"version": "5.16.20",
"lessThanOrEqual": "5.16.*",
"status": "unaffected",
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},
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"version": "5.17.3",
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},
{
"version": "5.18",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
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"defaultStatus": "affected"
}
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"url": "https://git.kernel.org/stable/c/f4de974019a0adf34d0e7de6b86252f1bd266b06",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/f4de974019a0adf34d0e7de6b86252f1bd266b06"
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"url": "https://git.kernel.org/stable/c/ed3dfdaa8b5f0579eabfc1c5818eed30cfe1fe84",
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"name": "https://git.kernel.org/stable/c/ed3dfdaa8b5f0579eabfc1c5818eed30cfe1fe84"
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"url": "https://git.kernel.org/stable/c/25efc5d03455c3839249bc77fce5e29ecb54677e",
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"name": "https://git.kernel.org/stable/c/9d7d83d0399e23d66fd431b553842a84ac10398f"
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"name": "https://git.kernel.org/stable/c/be2f81024e7981565d90a4c9ca3067d11b6bca7f"
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"name": "https://git.kernel.org/stable/c/564d4eceb97eaf381dd6ef6470b06377bb50c95a"
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"generator": {
"engine": "bippy-5f407fcff5a0"
}
}
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