mirror of
https://github.com/CVEProject/cvelist.git
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113 lines
5.6 KiB
JSON
113 lines
5.6 KiB
JSON
{
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"data_version": "4.0",
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"data_type": "CVE",
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"data_format": "MITRE",
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"CVE_data_meta": {
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"ID": "CVE-2021-47439",
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"ASSIGNER": "cve@kernel.org",
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"STATE": "PUBLIC"
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},
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: microchip: Added the condition for scheduling ksz_mib_read_work\n\nWhen the ksz module is installed and removed using rmmod, kernel crashes\nwith null pointer dereferrence error. During rmmod, ksz_switch_remove\nfunction tries to cancel the mib_read_workqueue using\ncancel_delayed_work_sync routine and unregister switch from dsa.\n\nDuring dsa_unregister_switch it calls ksz_mac_link_down, which in turn\nreschedules the workqueue since mib_interval is non-zero.\nDue to which queue executed after mib_interval and it tries to access\ndp->slave. But the slave is unregistered in the ksz_switch_remove\nfunction. Hence kernel crashes.\n\nTo avoid this crash, before canceling the workqueue, resetted the\nmib_interval to 0.\n\nv1 -> v2:\n-Removed the if condition in ksz_mib_read_work"
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}
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]
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "n/a"
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}
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]
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}
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]
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"vendor_name": "Linux",
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"product": {
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"product_data": [
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{
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"product_name": "Linux",
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"version": {
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"version_data": [
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{
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"version_affected": "<",
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"version_name": "469b390e1ba3",
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"version_value": "f2e1de075018"
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},
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"versions": [
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{
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"version": "5.7",
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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": "5.7",
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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": "5.10.75",
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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": "5.14.14",
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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",
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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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"defaultStatus": "affected"
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}
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}
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]
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}
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}
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]
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}
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}
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]
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}
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},
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"references": {
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"reference_data": [
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{
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"url": "https://git.kernel.org/stable/c/f2e1de075018cf71bcd7d628e9f759cb8540b0c3",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/f2e1de075018cf71bcd7d628e9f759cb8540b0c3"
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},
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{
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"url": "https://git.kernel.org/stable/c/383239a33cf29ebee9ce0d4e0e5c900b77a16148",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/383239a33cf29ebee9ce0d4e0e5c900b77a16148"
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},
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{
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"url": "https://git.kernel.org/stable/c/ef1100ef20f29aec4e62abeccdb5bdbebba1e378",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/ef1100ef20f29aec4e62abeccdb5bdbebba1e378"
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}
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]
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},
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"generator": {
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"engine": "bippy-9e1c9544281a"
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}
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} |