mirror of
https://github.com/CVEProject/cvelist.git
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124 lines
6.7 KiB
JSON
124 lines
6.7 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-2022-49195",
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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: fix panic on shutdown if multi-chip tree failed to probe\n\nDSA probing is atypical because a tree of devices must probe all at\nonce, so out of N switches which call dsa_tree_setup_routing_table()\nduring probe, for (N - 1) of them, \"complete\" will return false and they\nwill exit probing early. The Nth switch will set up the whole tree on\ntheir behalf.\n\nThe implication is that for (N - 1) switches, the driver binds to the\ndevice successfully, without doing anything. When the driver is bound,\nthe ->shutdown() method may run. But if the Nth switch has failed to\ninitialize the tree, there is nothing to do for the (N - 1) driver\ninstances, since the slave devices have not been created, etc. Moreover,\ndsa_switch_shutdown() expects that the calling @ds has been in fact\ninitialized, so it jumps at dereferencing the various data structures,\nwhich is incorrect.\n\nAvoid the ensuing NULL pointer dereferences by simply checking whether\nthe Nth switch has previously set \"ds->setup = true\" for the switch\nwhich is currently shutting down. The entire setup is serialized under\ndsa2_mutex which we already hold."
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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": "0650bf52b31ff35dc6430fc2e37969c36baba724",
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"version_value": "95df5cd5a446df6738d2d45872e08594819080e4"
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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": "5.15",
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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": "5.15",
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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": "5.15.33",
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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": "5.16.19",
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"lessThanOrEqual": "5.16.*",
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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": "5.17.2",
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"lessThanOrEqual": "5.17.*",
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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": "5.18",
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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/95df5cd5a446df6738d2d45872e08594819080e4",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/95df5cd5a446df6738d2d45872e08594819080e4"
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},
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{
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"url": "https://git.kernel.org/stable/c/b6e668ff43ebd87ccc8a19e5481345c428672295",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/b6e668ff43ebd87ccc8a19e5481345c428672295"
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},
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{
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"url": "https://git.kernel.org/stable/c/b864d5350c18bea9369d0bdd9e7eb6f6172cc283",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/b864d5350c18bea9369d0bdd9e7eb6f6172cc283"
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},
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{
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"url": "https://git.kernel.org/stable/c/8fd36358ce82382519b50b05f437493e1e00c4a9",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/8fd36358ce82382519b50b05f437493e1e00c4a9"
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}
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]
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},
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"generator": {
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"engine": "bippy-5f407fcff5a0"
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}
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} |