168 lines
9.0 KiB
JSON
168 lines
9.0 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-2023-53169",
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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": "2025-09-15T13:59:19.063Z",
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"datePublished": "2025-09-15T14:04:02.395Z",
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"dateUpdated": "2026-05-11T19:39:36.360Z"
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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": "2026-05-11T19:39:36.360Z"
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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\nx86/resctrl: Clear staged_config[] before and after it is used\n\nAs a temporary storage, staged_config[] in rdt_domain should be cleared\nbefore and after it is used. The stale value in staged_config[] could\ncause an MSR access error.\n\nHere is a reproducer on a system with 16 usable CLOSIDs for a 15-way L3\nCache (MBA should be disabled if the number of CLOSIDs for MB is less than\n16.) :\n\tmount -t resctrl resctrl -o cdp /sys/fs/resctrl\n\tmkdir /sys/fs/resctrl/p{1..7}\n\tumount /sys/fs/resctrl/\n\tmount -t resctrl resctrl /sys/fs/resctrl\n\tmkdir /sys/fs/resctrl/p{1..8}\n\nAn error occurs when creating resource group named p8:\n unchecked MSR access error: WRMSR to 0xca0 (tried to write 0x00000000000007ff) at rIP: 0xffffffff82249142 (cat_wrmsr+0x32/0x60)\n Call Trace:\n <IRQ>\n __flush_smp_call_function_queue+0x11d/0x170\n __sysvec_call_function+0x24/0xd0\n sysvec_call_function+0x89/0xc0\n </IRQ>\n <TASK>\n asm_sysvec_call_function+0x16/0x20\n\nWhen creating a new resource control group, hardware will be configured\nby the following process:\n rdtgroup_mkdir()\n rdtgroup_mkdir_ctrl_mon()\n rdtgroup_init_alloc()\n resctrl_arch_update_domains()\n\nresctrl_arch_update_domains() iterates and updates all resctrl_conf_type\nwhose have_new_ctrl is true. Since staged_config[] holds the same values as\nwhen CDP was enabled, it will continue to update the CDP_CODE and CDP_DATA\nconfigurations. When group p8 is created, get_config_index() called in\nresctrl_arch_update_domains() will return 16 and 17 as the CLOSIDs for\nCDP_CODE and CDP_DATA, which will be translated to an invalid register -\n0xca0 in this scenario.\n\nFix it by clearing staged_config[] before and after it is used.\n\n[reinette: re-order commit tags]"
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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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"arch/x86/kernel/cpu/resctrl/ctrlmondata.c",
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"arch/x86/kernel/cpu/resctrl/internal.h",
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"arch/x86/kernel/cpu/resctrl/rdtgroup.c"
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],
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"versions": [
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{
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"version": "75408e43509ed6207870c0e7e28656acbbc1f7fd",
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"lessThan": "86db319d25db70cf4af4557e05f6fa6f39c70003",
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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": "75408e43509ed6207870c0e7e28656acbbc1f7fd",
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"lessThan": "3fc5941ecc31a495b6b84b465f36155009db99b5",
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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": "75408e43509ed6207870c0e7e28656acbbc1f7fd",
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"lessThan": "8ecc60ef9318f0d533b866fa421858cc185bccfc",
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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": "75408e43509ed6207870c0e7e28656acbbc1f7fd",
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"lessThan": "0424a7dfe9129b93f29b277511a60e87f052ac6b",
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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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"arch/x86/kernel/cpu/resctrl/ctrlmondata.c",
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"arch/x86/kernel/cpu/resctrl/internal.h",
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"arch/x86/kernel/cpu/resctrl/rdtgroup.c"
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],
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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": "5.15.104",
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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": "6.1.21",
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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": "6.2.8",
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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": "5.15",
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"versionEndExcluding": "5.15.104"
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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": "5.15",
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"versionEndExcluding": "6.1.21"
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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": "5.15",
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"versionEndExcluding": "6.2.8"
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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": "5.15",
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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/86db319d25db70cf4af4557e05f6fa6f39c70003"
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},
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{
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"url": "https://git.kernel.org/stable/c/3fc5941ecc31a495b6b84b465f36155009db99b5"
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},
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{
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"url": "https://git.kernel.org/stable/c/8ecc60ef9318f0d533b866fa421858cc185bccfc"
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},
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{
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"url": "https://git.kernel.org/stable/c/0424a7dfe9129b93f29b277511a60e87f052ac6b"
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}
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],
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"title": "x86/resctrl: Clear staged_config[] before and after it is used",
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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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} |