cve-2022-48752
Vulnerability from cvelistv5
Published
2024-06-20 11:13
Modified
2024-11-04 12:15
Severity ?
Summary
powerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/28aaed966e76807a71de79dd40a8eee9042374dd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/55402a4618721f350a9ab660bb42717d8aa18e7c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fa4ad064a6bd49208221df5e62adf27b426d1720
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fb6433b48a178d4672cb26632454ee0b21056eaa
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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                "id": "CVE-2022-48752",
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    "cna": {
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          "product": "Linux",
          "programFiles": [
            "arch/powerpc/perf/core-book3s.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "vendor": "Linux",
          "versions": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending\n\nRunning selftest with CONFIG_PPC_IRQ_SOFT_MASK_DEBUG enabled in kernel\ntriggered below warning:\n\n[  172.851380] ------------[ cut here ]------------\n[  172.851391] WARNING: CPU: 8 PID: 2901 at arch/powerpc/include/asm/hw_irq.h:246 power_pmu_disable+0x270/0x280\n[  172.851402] Modules linked in: dm_mod bonding nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables rfkill nfnetlink sunrpc xfs libcrc32c pseries_rng xts vmx_crypto uio_pdrv_genirq uio sch_fq_codel ip_tables ext4 mbcache jbd2 sd_mod t10_pi sg ibmvscsi ibmveth scsi_transport_srp fuse\n[  172.851442] CPU: 8 PID: 2901 Comm: lost_exception_ Not tainted 5.16.0-rc5-03218-g798527287598 #2\n[  172.851451] NIP:  c00000000013d600 LR: c00000000013d5a4 CTR: c00000000013b180\n[  172.851458] REGS: c000000017687860 TRAP: 0700   Not tainted  (5.16.0-rc5-03218-g798527287598)\n[  172.851465] MSR:  8000000000029033 \u003cSF,EE,ME,IR,DR,RI,LE\u003e  CR: 48004884  XER: 20040000\n[  172.851482] CFAR: c00000000013d5b4 IRQMASK: 1\n[  172.851482] GPR00: c00000000013d5a4 c000000017687b00 c000000002a10600 0000000000000004\n[  172.851482] GPR04: 0000000082004000 c0000008ba08f0a8 0000000000000000 00000008b7ed0000\n[  172.851482] GPR08: 00000000446194f6 0000000000008000 c00000000013b118 c000000000d58e68\n[  172.851482] GPR12: c00000000013d390 c00000001ec54a80 0000000000000000 0000000000000000\n[  172.851482] GPR16: 0000000000000000 0000000000000000 c000000015d5c708 c0000000025396d0\n[  172.851482] GPR20: 0000000000000000 0000000000000000 c00000000a3bbf40 0000000000000003\n[  172.851482] GPR24: 0000000000000000 c0000008ba097400 c0000000161e0d00 c00000000a3bb600\n[  172.851482] GPR28: c000000015d5c700 0000000000000001 0000000082384090 c0000008ba0020d8\n[  172.851549] NIP [c00000000013d600] power_pmu_disable+0x270/0x280\n[  172.851557] LR [c00000000013d5a4] power_pmu_disable+0x214/0x280\n[  172.851565] Call Trace:\n[  172.851568] [c000000017687b00] [c00000000013d5a4] power_pmu_disable+0x214/0x280 (unreliable)\n[  172.851579] [c000000017687b40] [c0000000003403ac] perf_pmu_disable+0x4c/0x60\n[  172.851588] [c000000017687b60] [c0000000003445e4] __perf_event_task_sched_out+0x1d4/0x660\n[  172.851596] [c000000017687c50] [c000000000d1175c] __schedule+0xbcc/0x12a0\n[  172.851602] [c000000017687d60] [c000000000d11ea8] schedule+0x78/0x140\n[  172.851608] [c000000017687d90] [c0000000001a8080] sys_sched_yield+0x20/0x40\n[  172.851615] [c000000017687db0] [c0000000000334dc] system_call_exception+0x18c/0x380\n[  172.851622] [c000000017687e10] [c00000000000c74c] system_call_common+0xec/0x268\n\nThe warning indicates that MSR_EE being set(interrupt enabled) when\nthere was an overflown PMC detected. This could happen in\npower_pmu_disable since it runs under interrupt soft disable\ncondition ( local_irq_save ) and not with interrupts hard disabled.\ncommit 2c9ac51b850d (\"powerpc/perf: Fix PMU callbacks to clear\npending PMI before resetting an overflown PMC\") intended to clear\nPMI pending bit in Paca when disabling the PMU. It could happen\nthat PMC gets overflown while code is in power_pmu_disable\ncallback function. Hence add a check to see if PMI pending bit\nis set in Paca before clearing it via clear_pmi_pending."
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        "dateUpdated": "2024-11-04T12:15:48.362Z",
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      "title": "powerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48752",
    "datePublished": "2024-06-20T11:13:33.245Z",
    "dateReserved": "2024-06-20T11:09:39.057Z",
    "dateUpdated": "2024-11-04T12:15:48.362Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48752\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-20T12:15:13.397\",\"lastModified\":\"2024-06-20T12:43:25.663\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\npowerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending\\n\\nRunning selftest with CONFIG_PPC_IRQ_SOFT_MASK_DEBUG enabled in kernel\\ntriggered below warning:\\n\\n[  172.851380] ------------[ cut here ]------------\\n[  172.851391] WARNING: CPU: 8 PID: 2901 at arch/powerpc/include/asm/hw_irq.h:246 power_pmu_disable+0x270/0x280\\n[  172.851402] Modules linked in: dm_mod bonding nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables rfkill nfnetlink sunrpc xfs libcrc32c pseries_rng xts vmx_crypto uio_pdrv_genirq uio sch_fq_codel ip_tables ext4 mbcache jbd2 sd_mod t10_pi sg ibmvscsi ibmveth scsi_transport_srp fuse\\n[  172.851442] CPU: 8 PID: 2901 Comm: lost_exception_ Not tainted 5.16.0-rc5-03218-g798527287598 #2\\n[  172.851451] NIP:  c00000000013d600 LR: c00000000013d5a4 CTR: c00000000013b180\\n[  172.851458] REGS: c000000017687860 TRAP: 0700   Not tainted  (5.16.0-rc5-03218-g798527287598)\\n[  172.851465] MSR:  8000000000029033 \u003cSF,EE,ME,IR,DR,RI,LE\u003e  CR: 48004884  XER: 20040000\\n[  172.851482] CFAR: c00000000013d5b4 IRQMASK: 1\\n[  172.851482] GPR00: c00000000013d5a4 c000000017687b00 c000000002a10600 0000000000000004\\n[  172.851482] GPR04: 0000000082004000 c0000008ba08f0a8 0000000000000000 00000008b7ed0000\\n[  172.851482] GPR08: 00000000446194f6 0000000000008000 c00000000013b118 c000000000d58e68\\n[  172.851482] GPR12: c00000000013d390 c00000001ec54a80 0000000000000000 0000000000000000\\n[  172.851482] GPR16: 0000000000000000 0000000000000000 c000000015d5c708 c0000000025396d0\\n[  172.851482] GPR20: 0000000000000000 0000000000000000 c00000000a3bbf40 0000000000000003\\n[  172.851482] GPR24: 0000000000000000 c0000008ba097400 c0000000161e0d00 c00000000a3bb600\\n[  172.851482] GPR28: c000000015d5c700 0000000000000001 0000000082384090 c0000008ba0020d8\\n[  172.851549] NIP [c00000000013d600] power_pmu_disable+0x270/0x280\\n[  172.851557] LR [c00000000013d5a4] power_pmu_disable+0x214/0x280\\n[  172.851565] Call Trace:\\n[  172.851568] [c000000017687b00] [c00000000013d5a4] power_pmu_disable+0x214/0x280 (unreliable)\\n[  172.851579] [c000000017687b40] [c0000000003403ac] perf_pmu_disable+0x4c/0x60\\n[  172.851588] [c000000017687b60] [c0000000003445e4] __perf_event_task_sched_out+0x1d4/0x660\\n[  172.851596] [c000000017687c50] [c000000000d1175c] __schedule+0xbcc/0x12a0\\n[  172.851602] [c000000017687d60] [c000000000d11ea8] schedule+0x78/0x140\\n[  172.851608] [c000000017687d90] [c0000000001a8080] sys_sched_yield+0x20/0x40\\n[  172.851615] [c000000017687db0] [c0000000000334dc] system_call_exception+0x18c/0x380\\n[  172.851622] [c000000017687e10] [c00000000000c74c] system_call_common+0xec/0x268\\n\\nThe warning indicates that MSR_EE being set(interrupt enabled) when\\nthere was an overflown PMC detected. This could happen in\\npower_pmu_disable since it runs under interrupt soft disable\\ncondition ( local_irq_save ) and not with interrupts hard disabled.\\ncommit 2c9ac51b850d (\\\"powerpc/perf: Fix PMU callbacks to clear\\npending PMI before resetting an overflown PMC\\\") intended to clear\\nPMI pending bit in Paca when disabling the PMU. It could happen\\nthat PMC gets overflown while code is in power_pmu_disable\\ncallback function. Hence add a check to see if PMI pending bit\\nis set in Paca before clearing it via clear_pmi_pending.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/28aaed966e76807a71de79dd40a8eee9042374dd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/55402a4618721f350a9ab660bb42717d8aa18e7c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fa4ad064a6bd49208221df5e62adf27b426d1720\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fb6433b48a178d4672cb26632454ee0b21056eaa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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