mirror of
https://github.com/CVEProject/cvelist.git
synced 2025-08-04 08:44:25 +00:00
136 lines
7.5 KiB
JSON
136 lines
7.5 KiB
JSON
{
|
|
"data_version": "4.0",
|
|
"data_type": "CVE",
|
|
"data_format": "MITRE",
|
|
"CVE_data_meta": {
|
|
"ID": "CVE-2024-42126",
|
|
"ASSIGNER": "cve@kernel.org",
|
|
"STATE": "PUBLIC"
|
|
},
|
|
"description": {
|
|
"description_data": [
|
|
{
|
|
"lang": "eng",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc: Avoid nmi_enter/nmi_exit in real mode interrupt.\n\nnmi_enter()/nmi_exit() touches per cpu variables which can lead to kernel\ncrash when invoked during real mode interrupt handling (e.g. early HMI/MCE\ninterrupt handler) if percpu allocation comes from vmalloc area.\n\nEarly HMI/MCE handlers are called through DEFINE_INTERRUPT_HANDLER_NMI()\nwrapper which invokes nmi_enter/nmi_exit calls. We don't see any issue when\npercpu allocation is from the embedded first chunk. However with\nCONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK enabled there are chances where percpu\nallocation can come from the vmalloc area.\n\nWith kernel command line \"percpu_alloc=page\" we can force percpu allocation\nto come from vmalloc area and can see kernel crash in machine_check_early:\n\n[ 1.215714] NIP [c000000000e49eb4] rcu_nmi_enter+0x24/0x110\n[ 1.215717] LR [c0000000000461a0] machine_check_early+0xf0/0x2c0\n[ 1.215719] --- interrupt: 200\n[ 1.215720] [c000000fffd73180] [0000000000000000] 0x0 (unreliable)\n[ 1.215722] [c000000fffd731b0] [0000000000000000] 0x0\n[ 1.215724] [c000000fffd73210] [c000000000008364] machine_check_early_common+0x134/0x1f8\n\nFix this by avoiding use of nmi_enter()/nmi_exit() in real mode if percpu\nfirst chunk is not embedded."
|
|
}
|
|
]
|
|
},
|
|
"problemtype": {
|
|
"problemtype_data": [
|
|
{
|
|
"description": [
|
|
{
|
|
"lang": "eng",
|
|
"value": "n/a"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
},
|
|
"affects": {
|
|
"vendor": {
|
|
"vendor_data": [
|
|
{
|
|
"vendor_name": "Linux",
|
|
"product": {
|
|
"product_data": [
|
|
{
|
|
"product_name": "Linux",
|
|
"version": {
|
|
"version_data": [
|
|
{
|
|
"version_affected": "<",
|
|
"version_name": "1da177e4c3f4",
|
|
"version_value": "fb6675db04c4"
|
|
},
|
|
{
|
|
"version_value": "not down converted",
|
|
"x_cve_json_5_version_data": {
|
|
"versions": [
|
|
{
|
|
"version": "5.10.224",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "custom"
|
|
},
|
|
{
|
|
"version": "5.15.165",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "custom"
|
|
},
|
|
{
|
|
"version": "6.1.98",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "custom"
|
|
},
|
|
{
|
|
"version": "6.6.39",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "custom"
|
|
},
|
|
{
|
|
"version": "6.9.9",
|
|
"lessThanOrEqual": "6.9.*",
|
|
"status": "unaffected",
|
|
"versionType": "custom"
|
|
},
|
|
{
|
|
"version": "6.10",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
],
|
|
"defaultStatus": "affected"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
}
|
|
},
|
|
"references": {
|
|
"reference_data": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/fb6675db04c4b79883373edc578d5df7bbc84848",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/fb6675db04c4b79883373edc578d5df7bbc84848"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/e2afb26615adf6c3ceaaa7732aa839bcd587a057",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/e2afb26615adf6c3ceaaa7732aa839bcd587a057"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/8d3f83dfb23674540c827a8d65fba20aa300b252",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/8d3f83dfb23674540c827a8d65fba20aa300b252"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/0f37946c62c48a907625348cbc720a7a0c547d1e",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/0f37946c62c48a907625348cbc720a7a0c547d1e"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/2c78c9411e685dbc9eac8c2845111b03501975b8",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/2c78c9411e685dbc9eac8c2845111b03501975b8"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/0db880fc865ffb522141ced4bfa66c12ab1fbb70",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/0db880fc865ffb522141ced4bfa66c12ab1fbb70"
|
|
}
|
|
]
|
|
},
|
|
"generator": {
|
|
"engine": "bippy-c9c4e1df01b2"
|
|
}
|
|
} |