fkie_cve-2024-50231
Vulnerability from fkie_nvd
Published
2024-11-09 11:15
Modified
2024-11-13 18:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: gts-helper: Fix memory leaks in iio_gts_build_avail_scale_table() modprobe iio-test-gts and rmmod it, then the following memory leak occurs: unreferenced object 0xffffff80c810be00 (size 64): comm "kunit_try_catch", pid 1654, jiffies 4294913981 hex dump (first 32 bytes): 02 00 00 00 08 00 00 00 20 00 00 00 40 00 00 00 ........ ...@... 80 00 00 00 00 02 00 00 00 04 00 00 00 08 00 00 ................ backtrace (crc a63d875e): [<0000000028c1b3c2>] kmemleak_alloc+0x34/0x40 [<000000001d6ecc87>] __kmalloc_noprof+0x2bc/0x3c0 [<00000000393795c1>] devm_iio_init_iio_gts+0x4b4/0x16f4 [<0000000071bb4b09>] 0xffffffdf052a62e0 [<000000000315bc18>] 0xffffffdf052a6488 [<00000000f9dc55b5>] kunit_try_run_case+0x13c/0x3ac [<00000000175a3fd4>] kunit_generic_run_threadfn_adapter+0x80/0xec [<00000000f505065d>] kthread+0x2e8/0x374 [<00000000bbfb0e5d>] ret_from_fork+0x10/0x20 unreferenced object 0xffffff80cbfe9e70 (size 16): comm "kunit_try_catch", pid 1658, jiffies 4294914015 hex dump (first 16 bytes): 10 00 00 00 40 00 00 00 80 00 00 00 00 00 00 00 ....@........... backtrace (crc 857f0cb4): [<0000000028c1b3c2>] kmemleak_alloc+0x34/0x40 [<000000001d6ecc87>] __kmalloc_noprof+0x2bc/0x3c0 [<00000000393795c1>] devm_iio_init_iio_gts+0x4b4/0x16f4 [<0000000071bb4b09>] 0xffffffdf052a62e0 [<000000007d089d45>] 0xffffffdf052a6864 [<00000000f9dc55b5>] kunit_try_run_case+0x13c/0x3ac [<00000000175a3fd4>] kunit_generic_run_threadfn_adapter+0x80/0xec [<00000000f505065d>] kthread+0x2e8/0x374 [<00000000bbfb0e5d>] ret_from_fork+0x10/0x20 ...... It includes 5*5 times "size 64" memory leaks, which correspond to 5 times test_init_iio_gain_scale() calls with gts_test_gains size 10 (10*size(int)) and gts_test_itimes size 5. It also includes 5*1 times "size 16" memory leak, which correspond to one time __test_init_iio_gain_scale() call with gts_test_gains_gain_low size 3 (3*size(int)) and gts_test_itimes size 5. The reason is that the per_time_gains[i] is not freed which is allocated in the "gts->num_itime" for loop in iio_gts_build_avail_scale_table().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/16e41593825c3044efca0eb34b2d6ffba306e4ecPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/38d6e8be234d87b0eedca50309e25051888b39d1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/691e79ffc42154a9c91dc3b7e96a307037b4be74Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12


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{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "A878C8F6-C972-4F6F-88E6-0743B1F3EF1C",
                     versionEndExcluding: "6.6.60",
                     versionStartIncluding: "6.4",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "E96F53A4-5E87-4A70-BD9A-BC327828D57F",
                     versionEndExcluding: "6.11.7",
                     versionStartIncluding: "6.7",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*",
                     matchCriteriaId: "7F361E1D-580F-4A2D-A509-7615F73167A1",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*",
                     matchCriteriaId: "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*",
                     matchCriteriaId: "3C95E234-D335-4B6C-96BF-E2CEBD8654ED",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*",
                     matchCriteriaId: "E0F717D8-3014-4F84-8086-0124B2111379",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*",
                     matchCriteriaId: "24DBE6C7-2AAE-4818-AED2-E131F153D2FA",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "In the Linux kernel, the following vulnerability has been resolved:\n\niio: gts-helper: Fix memory leaks in iio_gts_build_avail_scale_table()\n\nmodprobe iio-test-gts and rmmod it, then the following memory leak\noccurs:\n\n\tunreferenced object 0xffffff80c810be00 (size 64):\n\t  comm \"kunit_try_catch\", pid 1654, jiffies 4294913981\n\t  hex dump (first 32 bytes):\n\t    02 00 00 00 08 00 00 00 20 00 00 00 40 00 00 00  ........ ...@...\n\t    80 00 00 00 00 02 00 00 00 04 00 00 00 08 00 00  ................\n\t  backtrace (crc a63d875e):\n\t    [<0000000028c1b3c2>] kmemleak_alloc+0x34/0x40\n\t    [<000000001d6ecc87>] __kmalloc_noprof+0x2bc/0x3c0\n\t    [<00000000393795c1>] devm_iio_init_iio_gts+0x4b4/0x16f4\n\t    [<0000000071bb4b09>] 0xffffffdf052a62e0\n\t    [<000000000315bc18>] 0xffffffdf052a6488\n\t    [<00000000f9dc55b5>] kunit_try_run_case+0x13c/0x3ac\n\t    [<00000000175a3fd4>] kunit_generic_run_threadfn_adapter+0x80/0xec\n\t    [<00000000f505065d>] kthread+0x2e8/0x374\n\t    [<00000000bbfb0e5d>] ret_from_fork+0x10/0x20\n\tunreferenced object 0xffffff80cbfe9e70 (size 16):\n\t  comm \"kunit_try_catch\", pid 1658, jiffies 4294914015\n\t  hex dump (first 16 bytes):\n\t    10 00 00 00 40 00 00 00 80 00 00 00 00 00 00 00  ....@...........\n\t  backtrace (crc 857f0cb4):\n\t    [<0000000028c1b3c2>] kmemleak_alloc+0x34/0x40\n\t    [<000000001d6ecc87>] __kmalloc_noprof+0x2bc/0x3c0\n\t    [<00000000393795c1>] devm_iio_init_iio_gts+0x4b4/0x16f4\n\t    [<0000000071bb4b09>] 0xffffffdf052a62e0\n\t    [<000000007d089d45>] 0xffffffdf052a6864\n\t    [<00000000f9dc55b5>] kunit_try_run_case+0x13c/0x3ac\n\t    [<00000000175a3fd4>] kunit_generic_run_threadfn_adapter+0x80/0xec\n\t    [<00000000f505065d>] kthread+0x2e8/0x374\n\t    [<00000000bbfb0e5d>] ret_from_fork+0x10/0x20\n\t......\n\nIt includes 5*5 times \"size 64\" memory leaks, which correspond to 5 times\ntest_init_iio_gain_scale() calls with gts_test_gains size 10 (10*size(int))\nand gts_test_itimes size 5. It also includes 5*1 times \"size 16\"\nmemory leak, which correspond to one time __test_init_iio_gain_scale()\ncall with gts_test_gains_gain_low size 3 (3*size(int)) and gts_test_itimes\nsize 5.\n\nThe reason is that the per_time_gains[i] is not freed which is allocated in\nthe \"gts->num_itime\" for loop in iio_gts_build_avail_scale_table().",
      },
      {
         lang: "es",
         value: "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iio: gts-helper: corrige fugas de memoria en iio_gts_build_avail_scale_table() modprobe iio-test-gts y rmmod, luego ocurre la siguiente fuga de memoria: objeto sin referencia 0xffffff80c810be00 (tamaño 64): comm \"kunit_try_catch\", pid 1654, jiffies 4294913981 volcado hexadecimal (primeros 32 bytes): 02 00 00 00 08 00 00 00 20 00 00 00 40 00 00 00 ........ ...@... 80 00 00 00 00 02 00 00 00 04 00 00 00 08 00 00 ................ backtrace (crc a63d875e): [&lt;0000000028c1b3c2&gt;] kmemleak_alloc+0x34/0x40 [&lt;000000001d6ecc87&gt;] __kmalloc_noprof+0x2bc/0x3c0 [&lt;00000000393795c1&gt;] devm_iio_init_iio_gts+0x4b4/0x16f4 [&lt;0000000071bb4b09&gt;] 0xffffffdf052a62e0 [&lt;000000000315bc18&gt;] 0xffffffdf052a6488 [&lt;00000000f9dc55b5&gt;] kunit_try_run_case+0x13c/0x3ac [&lt;00000000175a3fd4&gt;] kunit_generic_run_threadfn_adapter+0x80/0xec [&lt;00000000f505065d&gt;] kthread+0x2e8/0x374 [&lt;00000000bbfb0e5d&gt;] ret_from_fork+0x10/0x20 objeto sin referencia 0xffffff80cbfe9e70 (tamaño 16): comm \"kunit_try_catch\", pid 1658, jiffies 4294914015 volcado hexadecimal (primeros 16 bytes): 10 00 00 00 40 00 00 00 80 00 00 00 00 00 00 00 ....@........... backtrace (crc 857f0cb4): [&lt;0000000028c1b3c2&gt;] kmemleak_alloc+0x34/0x40 [&lt;000000001d6ecc87&gt;] __kmalloc_noprof+0x2bc/0x3c0 [&lt;00000000393795c1&gt;] devm_iio_init_iio_gts+0x4b4/0x16f4 [&lt;0000000071bb4b09&gt;] 0xffffffdf052a62e0 [&lt;000000007d089d45&gt;] 0xffffffdf052a6864 [&lt;00000000f9dc55b5&gt;] kunit_try_run_case+0x13c/0x3ac [&lt;00000000175a3fd4&gt;] kunit_generic_run_threadfn_adapter+0x80/0xec [&lt;00000000f505065d&gt;] kthread+0x2e8/0x374 [&lt;00000000bbfb0e5d&gt;] ret_from_fork+0x10/0x20 ...... Incluye 5*5 veces pérdidas de memoria de \"tamaño 64\", que corresponden a 5 veces llamadas a test_init_iio_gain_scale() con gts_test_gains tamaño 10 (10*size(int)) y gts_test_itimes tamaño 5. También incluye 5*1 veces pérdidas de memoria de \"tamaño 16\", que corresponden a una vez llamada a __test_init_iio_gain_scale() con gts_test_gains_gain_low tamaño 3 (3*size(int)) y gts_test_itimes tamaño 5. La razón es que no se libera per_time_gains[i], que está asignado en el bucle for \"gts-&gt;num_itime\" en iio_gts_build_avail_scale_table().",
      },
   ],
   id: "CVE-2024-50231",
   lastModified: "2024-11-13T18:30:53.017",
   metrics: {
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "LOCAL",
               availabilityImpact: "HIGH",
               baseScore: 5.5,
               baseSeverity: "MEDIUM",
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               privilegesRequired: "LOW",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
               version: "3.1",
            },
            exploitabilityScore: 1.8,
            impactScore: 3.6,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2024-11-09T11:15:09.057",
   references: [
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/16e41593825c3044efca0eb34b2d6ffba306e4ec",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/38d6e8be234d87b0eedca50309e25051888b39d1",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/691e79ffc42154a9c91dc3b7e96a307037b4be74",
      },
   ],
   sourceIdentifier: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
   vulnStatus: "Analyzed",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-401",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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