{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf: RISCV: Fix panic on pmu overflow handler\n\n(1 << idx) of int is not desired when setting bits in unsigned long\noverflowed_ctrs, use BIT() instead. This panic happens when running\n'perf record -e branches' on sophgo sg2042.\n\n[  273.311852] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000098\n[  273.320851] Oops [#1]\n[  273.323179] Modules linked in:\n[  273.326303] CPU: 0 PID: 1475 Comm: perf Not tainted 6.6.0-rc3+ #9\n[  273.332521] Hardware name: Sophgo Mango (DT)\n[  273.336878] epc : riscv_pmu_ctr_get_width_mask+0x8/0x62\n[  273.342291]  ra : pmu_sbi_ovf_handler+0x2e0/0x34e\n[  273.347091] epc : ffffffff80aecd98 ra : ffffffff80aee056 sp : fffffff6e36928b0\n[  273.354454]  gp : ffffffff821f82d0 tp : ffffffd90c353200 t0 : 0000002ade4f9978\n[  273.361815]  t1 : 0000000000504d55 t2 : ffffffff8016cd8c s0 : fffffff6e3692a70\n[  273.369180]  s1 : 0000000000000020 a0 : 0000000000000000 a1 : 00001a8e81800000\n[  273.376540]  a2 : 0000003c00070198 a3 : 0000003c00db75a4 a4 : 0000000000000015\n[  273.383901]  a5 : ffffffd7ff8804b0 a6 : 0000000000000015 a7 : 000000000000002a\n[  273.391327]  s2 : 000000000000ffff s3 : 0000000000000000 s4 : ffffffd7ff8803b0\n[  273.398773]  s5 : 0000000000504d55 s6 : ffffffd905069800 s7 : ffffffff821fe210\n[  273.406139]  s8 : 000000007fffffff s9 : ffffffd7ff8803b0 s10: ffffffd903f29098\n[  273.413660]  s11: 0000000080000000 t3 : 0000000000000003 t4 : ffffffff8017a0ca\n[  273.421022]  t5 : ffffffff8023cfc2 t6 : ffffffd9040780e8\n[  273.426437] status: 0000000200000100 badaddr: 0000000000000098 cause: 000000000000000d\n[  273.434512] [<ffffffff80aecd98>] riscv_pmu_ctr_get_width_mask+0x8/0x62\n[  273.441169] [<ffffffff80076bd8>] handle_percpu_devid_irq+0x98/0x1ee\n[  273.447562] [<ffffffff80071158>] generic_handle_domain_irq+0x28/0x36\n[  273.454151] [<ffffffff8047a99a>] riscv_intc_irq+0x36/0x4e\n[  273.459659] [<ffffffff80c944de>] handle_riscv_irq+0x4a/0x74\n[  273.465442] [<ffffffff80c94c48>] do_irq+0x62/0x92\n[  273.470360] Code: 0420 60a2 6402 5529 0141 8082 0013 0000 0013 0000 (6d5c) b783\n[  273.477921] ---[ end trace 0000000000000000 ]---\n[  273.482630] Kernel panic - not syncing: Fatal exception in interrupt"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/perf/riscv_pmu_sbi.c"
               ],
               "versions": [
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "3ede8e94de6b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "9f599ba3b9cc",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "34b567868777",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/perf/riscv_pmu_sbi.c"
               ],
               "versions": [
                  {
                     "version": "6.6.23",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7.11",
                     "lessThanOrEqual": "6.7.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/3ede8e94de6b834b48b0643385e66363e7a04be9"
            },
            {
               "url": "https://git.kernel.org/stable/c/9f599ba3b9cc4bdb8ec1e3f0feddd41bf9d296d6"
            },
            {
               "url": "https://git.kernel.org/stable/c/34b567868777e9fd39ec5333969728a7f0cf179c"
            }
         ],
         "title": "perf: RISCV: Fix panic on pmu overflow handler",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-26902",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}