mirror of
https://github.com/CVEProject/cvelist.git
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114 lines
6.2 KiB
JSON
114 lines
6.2 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-2023-52831",
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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\ncpu/hotplug: Don't offline the last non-isolated CPU\n\nIf a system has isolated CPUs via the \"isolcpus=\" command line parameter,\nthen an attempt to offline the last housekeeping CPU will result in a\nWARN_ON() when rebuilding the scheduler domains and a subsequent panic due\nto and unhandled empty CPU mas in partition_sched_domains_locked().\n\ncpuset_hotplug_workfn()\n rebuild_sched_domains_locked()\n ndoms = generate_sched_domains(&doms, &attr);\n cpumask_and(doms[0], top_cpuset.effective_cpus, housekeeping_cpumask(HK_FLAG_DOMAIN));\n\nThus results in an empty CPU mask which triggers the warning and then the\nsubsequent crash:\n\nWARNING: CPU: 4 PID: 80 at kernel/sched/topology.c:2366 build_sched_domains+0x120c/0x1408\nCall trace:\n build_sched_domains+0x120c/0x1408\n partition_sched_domains_locked+0x234/0x880\n rebuild_sched_domains_locked+0x37c/0x798\n rebuild_sched_domains+0x30/0x58\n cpuset_hotplug_workfn+0x2a8/0x930\n\nUnable to handle kernel paging request at virtual address fffe80027ab37080\n partition_sched_domains_locked+0x318/0x880\n rebuild_sched_domains_locked+0x37c/0x798\n\nAside of the resulting crash, it does not make any sense to offline the last\nlast housekeeping CPU.\n\nPrevent this by masking out the non-housekeeping CPUs when selecting a\ntarget CPU for initiating the CPU unplug operation via the work queue."
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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": "1da177e4c3f4",
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"version_value": "3410b7023547"
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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": "6.1.64",
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"lessThanOrEqual": "6.1.*",
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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": "6.5.13",
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"lessThanOrEqual": "6.5.*",
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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": "6.6.3",
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"lessThanOrEqual": "6.6.*",
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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": "6.7",
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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/3410b702354702b500bde10e3cc1f9db8731d908",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/3410b702354702b500bde10e3cc1f9db8731d908"
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},
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{
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"url": "https://git.kernel.org/stable/c/335a47ed71e332c82339d1aec0c7f6caccfcda13",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/335a47ed71e332c82339d1aec0c7f6caccfcda13"
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},
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{
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"url": "https://git.kernel.org/stable/c/3073f6df783d9d75f7f69f73e16c7ef85d6cfb63",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/3073f6df783d9d75f7f69f73e16c7ef85d6cfb63"
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},
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{
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"url": "https://git.kernel.org/stable/c/38685e2a0476127db766f81b1c06019ddc4c9ffa",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/38685e2a0476127db766f81b1c06019ddc4c9ffa"
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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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} |