{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47633","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-02-26T01:48:21.518Z","datePublished":"2025-02-26T01:54:08.651Z","dateUpdated":"2025-05-21T08:31:54.292Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-21T08:31:54.292Z"},"descriptions":[{"lang":"en","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"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/ath5k/eeprom.c"],"versions":[{"version":"8e218fb24faef0bfe95bc91b3c05261e20439527","lessThan":"f4de974019a0adf34d0e7de6b86252f1bd266b06","status":"affected","versionType":"git"},{"version":"8e218fb24faef0bfe95bc91b3c05261e20439527","lessThan":"ed3dfdaa8b5f0579eabfc1c5818eed30cfe1fe84","status":"affected","versionType":"git"},{"version":"8e218fb24faef0bfe95bc91b3c05261e20439527","lessThan":"25efc5d03455c3839249bc77fce5e29ecb54677e","status":"affected","versionType":"git"},{"version":"8e218fb24faef0bfe95bc91b3c05261e20439527","lessThan":"c4e2f577271e158d87a916afb4e87415a88ce856","status":"affected","versionType":"git"},{"version":"8e218fb24faef0bfe95bc91b3c05261e20439527","lessThan":"9d7d83d0399e23d66fd431b553842a84ac10398f","status":"affected","versionType":"git"},{"version":"8e218fb24faef0bfe95bc91b3c05261e20439527","lessThan":"be2f81024e7981565d90a4c9ca3067d11b6bca7f","status":"affected","versionType":"git"},{"version":"8e218fb24faef0bfe95bc91b3c05261e20439527","lessThan":"fc8f7752a82f4accb99c0f1a868906ba1eb7b86f","status":"affected","versionType":"git"},{"version":"8e218fb24faef0bfe95bc91b3c05261e20439527","lessThan":"cbd96d6cad6625feba9c8d101ed4977d53e82f8e","status":"affected","versionType":"git"},{"version":"8e218fb24faef0bfe95bc91b3c05261e20439527","lessThan":"564d4eceb97eaf381dd6ef6470b06377bb50c95a","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/ath/ath5k/eeprom.c"],"versions":[{"version":"2.6.30","status":"affected"},{"version":"0","lessThan":"2.6.30","status":"unaffected","versionType":"semver"},{"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","versionType":"semver"},{"version":"5.16.20","lessThanOrEqual":"5.16.*","status":"unaffected","versionType":"semver"},{"version":"5.17.3","lessThanOrEqual":"5.17.*","status":"unaffected","versionType":"semver"},{"version":"5.18","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":"2.6.30","versionEndExcluding":"4.9.311"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"4.14.276"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"4.19.238"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.4.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.10.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.15.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.16.20"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.17.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.18"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/f4de974019a0adf34d0e7de6b86252f1bd266b06"},{"url":"https://git.kernel.org/stable/c/ed3dfdaa8b5f0579eabfc1c5818eed30cfe1fe84"},{"url":"https://git.kernel.org/stable/c/25efc5d03455c3839249bc77fce5e29ecb54677e"},{"url":"https://git.kernel.org/stable/c/c4e2f577271e158d87a916afb4e87415a88ce856"},{"url":"https://git.kernel.org/stable/c/9d7d83d0399e23d66fd431b553842a84ac10398f"},{"url":"https://git.kernel.org/stable/c/be2f81024e7981565d90a4c9ca3067d11b6bca7f"},{"url":"https://git.kernel.org/stable/c/fc8f7752a82f4accb99c0f1a868906ba1eb7b86f"},{"url":"https://git.kernel.org/stable/c/cbd96d6cad6625feba9c8d101ed4977d53e82f8e"},{"url":"https://git.kernel.org/stable/c/564d4eceb97eaf381dd6ef6470b06377bb50c95a"}],"title":"ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111","x_generator":{"engine":"bippy-1.2.0"}}}}