248 lines
11 KiB
JSON
248 lines
11 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2021-47479",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-05-22T06:20:56.200Z",
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"datePublished": "2024-05-22T08:19:32.174Z",
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"dateUpdated": "2026-05-23T15:20:04.414Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-23T15:20:04.414Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8712: fix use-after-free in rtl8712_dl_fw\n\nSyzbot reported use-after-free in rtl8712_dl_fw(). The problem was in\nrace condition between r871xu_dev_remove() ->ndo_open() callback.\n\nIt's easy to see from crash log, that driver accesses released firmware\nin ->ndo_open() callback. It may happen, since driver was releasing\nfirmware _before_ unregistering netdev. Fix it by moving\nunregister_netdev() before cleaning up resources.\n\nCall Trace:\n...\n rtl871x_open_fw drivers/staging/rtl8712/hal_init.c:83 [inline]\n rtl8712_dl_fw+0xd95/0xe10 drivers/staging/rtl8712/hal_init.c:170\n rtl8712_hal_init drivers/staging/rtl8712/hal_init.c:330 [inline]\n rtl871x_hal_init+0xae/0x180 drivers/staging/rtl8712/hal_init.c:394\n netdev_open+0xe6/0x6c0 drivers/staging/rtl8712/os_intfs.c:380\n __dev_open+0x2bc/0x4d0 net/core/dev.c:1484\n\nFreed by task 1306:\n...\n release_firmware+0x1b/0x30 drivers/base/firmware_loader/main.c:1053\n r871xu_dev_remove+0xcc/0x2c0 drivers/staging/rtl8712/usb_intf.c:599\n usb_unbind_interface+0x1d8/0x8d0 drivers/usb/core/driver.c:458"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/staging/rtl8712/usb_intf.c"
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],
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"versions": [
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{
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"version": "8c213fa59199f9673d66970d6940fa093186642f",
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"lessThan": "c430094541a80575259a94ff879063ef01473506",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "8c213fa59199f9673d66970d6940fa093186642f",
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"lessThan": "befd23bd3b17f1a3f9c943a8580b47444c7c63ed",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "8c213fa59199f9673d66970d6940fa093186642f",
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"lessThan": "a65c9afe9f2f55b7a7fb4a25ab654cd4139683a4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "8c213fa59199f9673d66970d6940fa093186642f",
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"lessThan": "c052cc1a069c3e575619cf64ec427eb41176ca70",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "bc5d453eab4506cb52397db8830d1070904265a4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3.2.6",
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"lessThan": "3.3",
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"status": "affected",
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"versionType": "semver"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/staging/rtl8712/usb_intf.c"
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],
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"versions": [
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{
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"version": "3.3",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "3.3",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.79",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.14.18",
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"lessThanOrEqual": "5.14.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.2",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.16",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.3",
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"versionEndExcluding": "5.10.79"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.3",
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"versionEndExcluding": "5.14.18"
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},
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"versionEndExcluding": "5.15.2"
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"references": [
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"url": "https://git.kernel.org/stable/c/c430094541a80575259a94ff879063ef01473506"
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"url": "https://git.kernel.org/stable/c/befd23bd3b17f1a3f9c943a8580b47444c7c63ed"
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"url": "https://git.kernel.org/stable/c/a65c9afe9f2f55b7a7fb4a25ab654cd4139683a4"
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{
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"url": "https://git.kernel.org/stable/c/c052cc1a069c3e575619cf64ec427eb41176ca70"
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}
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],
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"title": "staging: rtl8712: fix use-after-free in rtl8712_dl_fw",
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"metrics": [
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{
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"type": "ssvc",
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"content": {
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"id": "CVE-2021-47479",
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"role": "CISA Coordinator",
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"options": [
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{
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{
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"Automatable": "no"
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"version": "2.0.3",
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"timestamp": "2024-05-24T19:24:15.320557Z"
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