nvd-json-data-feeds/CVE-2022/CVE-2022-487xx/CVE-2022-48752.json

{
  "id": "CVE-2022-48752",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-06-20T12:15:13.397",
  "lastModified": "2024-11-21T07:33:55.707",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "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 <SF,EE,ME,IR,DR,RI,LE>  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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: powerpc/perf: corrija power_pmu_disable para llamar a clear_pmi_irq_pending solo si PMI est\u00e1 pendiente Ejecutando la autoprueba con CONFIG_PPC_IRQ_SOFT_MASK_DEBUG habilitado en el kernel activado a continuaci\u00f3n: [172.851380] ---------- --[ cortar aqu\u00ed ]------------ [ 172.851391] ADVERTENCIA: CPU: 8 PID: 2901 en arch/powerpc/include/asm/hw_irq.h:246 power_pmu_disable+0x270/0x280 [ 172.851402 ] M\u00f3dulos vinculados en: 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 j bd2 sd_mod t10_pi sg ibmvscsi ibmveth scsi_transport_srp fusible [172.851442] CPU: 8 PID: 2901 Comm: lost_exception_ No contaminado 5.16 .0-rc5-03218-g798527287598 #2 [ 172.851451] NIP: c00000000013d600 LR: c00000000013d5a4 CTR: c00000000013b180 [ 172.851458] REGS: 7687860 TRAMPA: 0700 No contaminado (5.16.0-rc5-03218-g798527287598) [ 172.851465] MSR: 8000000000029033  CR: 48004884 XER: 20040000 [ 172.851482] CFAR: c00000000013d5b4 IRQMASK: 1 [ 172.851482] GPR00: c00000000013d5a4 c00000001768 7b00 c000000002a10600 0000000000000004 [ 172.851482] GPR04: 0000000082004000 c0000008ba08f0a8 0000000000000000 00000008b7ed0000 [ 17 2.851482 ] GPR08: 00000000446194f6 0000000000008000 c00000000013b118 c000000000d58e68 [ 172.851482] GPR12: c00000000013d390 c00000001ec54a80 0000000000000000 0000000000000000 [ 172.851482] GPR16: 0000000000000000 0000000000000000 c000000015d5c708 c0000000025396d0 [ 172.8 51482] GPR20: 0000000000000000 0000000000000000 c00000000a3bbf40 0000000000000003 [ 172.851482] GPR24: 0000000000000000 c0000008ba097 400 c0000000161e0d00 c00000000a3bb600 [ 172.851482] GPR28: c000000015d5c700 0000000000000001 0000000082384090 c0000008ba0020d8 [ 172.851549] NIP [c00000000013d600] power_pmu_disable+0x270/0x280 [ 172.851557] LR [c00000000013d5a4] able+0x214/0x280 [ 172.851565] Seguimiento de llamadas: [ 172.851568] [c000000017687b00] [c00000000013d5a4] power_pmu_disable+0x214/0x280 (no confiable) [ 172.851579] [c000000017687b40] [c0000000003403ac] perf_pmu_disable+0x4c/0x60 [ 172.851588] [c000000017687b60] [c0000000003445e4] k_sched_out+0x1d4/0x660 [ 172.851596] [c000000017687c50] [c000000000d1175c] __schedule+0xbcc/0x12a0 [ 172.851602] [c000000017687d60] 00d11ea8] programaci\u00f3n+0x78/0x140 [ 172.851608] [c000000017687d90] [c0000000001a8080] sys_sched_yield+0x20/0x40 [ 172.851615] [c000000017687db0] 34dc] system_call_exception+0x18c/0x380 [ 172.851622] [c000000017687e10] [c00000000000c74c] system_call_common+0xec/0x268 La advertencia indica que MSR_EE se configur\u00f3 (interrupci\u00f3n habilitada) cuando se detect\u00f3 un PMC desbordado. Esto podr\u00eda suceder en power_pmu_disable ya que se ejecuta bajo la condici\u00f3n de desactivaci\u00f3n suave de interrupci\u00f3n ( local_irq_save ) y no con interrupciones desactivadas por completo. commit 2c9ac51b850d (\"powerpc/perf: Fix devoluciones de llamada de PMU para borrar el PMI pendiente antes de restablecer un PMC desbordado\") destinado a borrar el bit pendiente de PMI en Paca al deshabilitar la PMU. Podr\u00eda suceder que PMC se desborde mientras el c\u00f3digo est\u00e1 en la funci\u00f3n de devoluci\u00f3n de llamada power_pmu_disable. Por lo tanto, agregue una verificaci\u00f3n para ver si el bit pendiente de PMI est\u00e1 configurado en Paca antes de borrarlo a trav\u00e9s de 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"
    },
    {
      "url": "https://git.kernel.org/stable/c/28aaed966e76807a71de79dd40a8eee9042374dd",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://git.kernel.org/stable/c/55402a4618721f350a9ab660bb42717d8aa18e7c",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://git.kernel.org/stable/c/fa4ad064a6bd49208221df5e62adf27b426d1720",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://git.kernel.org/stable/c/fb6433b48a178d4672cb26632454ee0b21056eaa",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}