151 lines
7.5 KiB
JSON
151 lines
7.5 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-2023-54323",
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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": "2025-12-30T12:35:56.209Z",
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"datePublished": "2025-12-30T12:37:07.656Z",
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"dateUpdated": "2026-05-11T19:59:44.788Z"
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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": "2026-05-11T19:59:44.788Z"
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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\ncxl/pmem: Fix nvdimm registration races\n\nA loop of the form:\n\n while true; do modprobe cxl_pci; modprobe -r cxl_pci; done\n\n...fails with the following crash signature:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000040\n [..]\n RIP: 0010:cxl_internal_send_cmd+0x5/0xb0 [cxl_core]\n [..]\n Call Trace:\n <TASK>\n cxl_pmem_ctl+0x121/0x240 [cxl_pmem]\n nvdimm_get_config_data+0xd6/0x1a0 [libnvdimm]\n nd_label_data_init+0x135/0x7e0 [libnvdimm]\n nvdimm_probe+0xd6/0x1c0 [libnvdimm]\n nvdimm_bus_probe+0x7a/0x1e0 [libnvdimm]\n really_probe+0xde/0x380\n __driver_probe_device+0x78/0x170\n driver_probe_device+0x1f/0x90\n __device_attach_driver+0x85/0x110\n bus_for_each_drv+0x7d/0xc0\n __device_attach+0xb4/0x1e0\n bus_probe_device+0x9f/0xc0\n device_add+0x445/0x9c0\n nd_async_device_register+0xe/0x40 [libnvdimm]\n async_run_entry_fn+0x30/0x130\n\n...namely that the bottom half of async nvdimm device registration runs\nafter the CXL has already torn down the context that cxl_pmem_ctl()\nneeds. Unlike the ACPI NFIT case that benefits from launching multiple\nnvdimm device registrations in parallel from those listed in the table,\nCXL is already marked PROBE_PREFER_ASYNCHRONOUS. So provide for a\nsynchronous registration path to preclude this scenario."
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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/cxl/pmem.c",
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"drivers/nvdimm/bus.c",
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"drivers/nvdimm/dimm_devs.c",
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"drivers/nvdimm/nd-core.h",
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"include/linux/libnvdimm.h"
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],
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"versions": [
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{
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"version": "21083f51521fb0f60dbac591f175c3ed48435af4",
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"lessThan": "a371788d4f4a7f59eecd22644331d599979fd283",
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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": "21083f51521fb0f60dbac591f175c3ed48435af4",
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"lessThan": "18c65667fa9104780eeaa0dc1bc240f0c2094772",
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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": "21083f51521fb0f60dbac591f175c3ed48435af4",
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"lessThan": "f57aec443c24d2e8e1f3b5b4856aea12ddda4254",
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"status": "affected",
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"versionType": "git"
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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/cxl/pmem.c",
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"drivers/nvdimm/bus.c",
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"drivers/nvdimm/dimm_devs.c",
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"drivers/nvdimm/nd-core.h",
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"include/linux/libnvdimm.h"
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],
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"versions": [
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{
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"version": "5.14",
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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": "5.14",
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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": "6.1.16",
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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": "6.2.3",
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"lessThanOrEqual": "6.2.*",
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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": "6.3",
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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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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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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": "5.14",
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"versionEndExcluding": "6.1.16"
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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": "5.14",
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"versionEndExcluding": "6.2.3"
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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": "5.14",
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"versionEndExcluding": "6.3"
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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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{
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"url": "https://git.kernel.org/stable/c/a371788d4f4a7f59eecd22644331d599979fd283"
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},
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{
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"url": "https://git.kernel.org/stable/c/18c65667fa9104780eeaa0dc1bc240f0c2094772"
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},
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{
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"url": "https://git.kernel.org/stable/c/f57aec443c24d2e8e1f3b5b4856aea12ddda4254"
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}
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],
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"title": "cxl/pmem: Fix nvdimm registration races",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |