cve-2024-50147
Vulnerability from cvelistv5
Published
2024-11-07 09:31
Modified
2024-12-19 09:34
Severity ?
EPSS score ?
0.03% (0.04977)
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix command bitmask initialization Command bitmask have a dedicated bit for MANAGE_PAGES command, this bit isn't Initialize during command bitmask Initialization, only during MANAGE_PAGES. In addition, mlx5_cmd_trigger_completions() is trying to trigger completion for MANAGE_PAGES command as well. Hence, in case health error occurred before any MANAGE_PAGES command have been invoke (for example, during mlx5_enable_hca()), mlx5_cmd_trigger_completions() will try to trigger completion for MANAGE_PAGES command, which will result in null-ptr-deref error.[1] Fix it by Initialize command bitmask correctly. While at it, re-write the code for better understanding. [1] BUG: KASAN: null-ptr-deref in mlx5_cmd_trigger_completions+0x1db/0x600 [mlx5_core] Write of size 4 at addr 0000000000000214 by task kworker/u96:2/12078 CPU: 10 PID: 12078 Comm: kworker/u96:2 Not tainted 6.9.0-rc2_for_upstream_debug_2024_04_07_19_01 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 Workqueue: mlx5_health0000:08:00.0 mlx5_fw_fatal_reporter_err_work [mlx5_core] Call Trace: <TASK> dump_stack_lvl+0x7e/0xc0 kasan_report+0xb9/0xf0 kasan_check_range+0xec/0x190 mlx5_cmd_trigger_completions+0x1db/0x600 [mlx5_core] mlx5_cmd_flush+0x94/0x240 [mlx5_core] enter_error_state+0x6c/0xd0 [mlx5_core] mlx5_fw_fatal_reporter_err_work+0xf3/0x480 [mlx5_core] process_one_work+0x787/0x1490 ? lockdep_hardirqs_on_prepare+0x400/0x400 ? pwq_dec_nr_in_flight+0xda0/0xda0 ? assign_work+0x168/0x240 worker_thread+0x586/0xd30 ? rescuer_thread+0xae0/0xae0 kthread+0x2df/0x3b0 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x2d/0x70 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork_asm+0x11/0x20 </TASK>
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2feac1e562be0efc621a6722644a90f355d53473Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d1606090bb294cecb7de3c4ed177f5aa0abd4c4ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d62b14045c6511a7b2d4948d1a83a4e592deeb05Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d88564c79d1cedaf2655f12261eca0d2796bde4ePatch
Impacted products
Vendor Product Version
Linux Linux Version: 9b98d395b85dd042fe83fb696b1ac02e6c93a520
Version: 9b98d395b85dd042fe83fb696b1ac02e6c93a520
Version: 9b98d395b85dd042fe83fb696b1ac02e6c93a520
Version: 9b98d395b85dd042fe83fb696b1ac02e6c93a520
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   Linux Linux Version: 6.1
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{
   containers: {
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "drivers/net/ethernet/mellanox/mlx5/core/cmd.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "d1606090bb294cecb7de3c4ed177f5aa0abd4c4e",
                     status: "affected",
                     version: "9b98d395b85dd042fe83fb696b1ac02e6c93a520",
                     versionType: "git",
                  },
                  {
                     lessThan: "d88564c79d1cedaf2655f12261eca0d2796bde4e",
                     status: "affected",
                     version: "9b98d395b85dd042fe83fb696b1ac02e6c93a520",
                     versionType: "git",
                  },
                  {
                     lessThan: "2feac1e562be0efc621a6722644a90f355d53473",
                     status: "affected",
                     version: "9b98d395b85dd042fe83fb696b1ac02e6c93a520",
                     versionType: "git",
                  },
                  {
                     lessThan: "d62b14045c6511a7b2d4948d1a83a4e592deeb05",
                     status: "affected",
                     version: "9b98d395b85dd042fe83fb696b1ac02e6c93a520",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "drivers/net/ethernet/mellanox/mlx5/core/cmd.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "6.1",
                  },
                  {
                     lessThan: "6.1",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.1.*",
                     status: "unaffected",
                     version: "6.1.115",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.6.*",
                     status: "unaffected",
                     version: "6.6.59",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.11.*",
                     status: "unaffected",
                     version: "6.11.6",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "6.12",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Fix command bitmask initialization\n\nCommand bitmask have a dedicated bit for MANAGE_PAGES command, this bit\nisn't Initialize during command bitmask Initialization, only during\nMANAGE_PAGES.\n\nIn addition, mlx5_cmd_trigger_completions() is trying to trigger\ncompletion for MANAGE_PAGES command as well.\n\nHence, in case health error occurred before any MANAGE_PAGES command\nhave been invoke (for example, during mlx5_enable_hca()),\nmlx5_cmd_trigger_completions() will try to trigger completion for\nMANAGE_PAGES command, which will result in null-ptr-deref error.[1]\n\nFix it by Initialize command bitmask correctly.\n\nWhile at it, re-write the code for better understanding.\n\n[1]\nBUG: KASAN: null-ptr-deref in mlx5_cmd_trigger_completions+0x1db/0x600 [mlx5_core]\nWrite of size 4 at addr 0000000000000214 by task kworker/u96:2/12078\nCPU: 10 PID: 12078 Comm: kworker/u96:2 Not tainted 6.9.0-rc2_for_upstream_debug_2024_04_07_19_01 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\nWorkqueue: mlx5_health0000:08:00.0 mlx5_fw_fatal_reporter_err_work [mlx5_core]\nCall Trace:\n <TASK>\n dump_stack_lvl+0x7e/0xc0\n kasan_report+0xb9/0xf0\n kasan_check_range+0xec/0x190\n mlx5_cmd_trigger_completions+0x1db/0x600 [mlx5_core]\n mlx5_cmd_flush+0x94/0x240 [mlx5_core]\n enter_error_state+0x6c/0xd0 [mlx5_core]\n mlx5_fw_fatal_reporter_err_work+0xf3/0x480 [mlx5_core]\n process_one_work+0x787/0x1490\n ? lockdep_hardirqs_on_prepare+0x400/0x400\n ? pwq_dec_nr_in_flight+0xda0/0xda0\n ? assign_work+0x168/0x240\n worker_thread+0x586/0xd30\n ? rescuer_thread+0xae0/0xae0\n kthread+0x2df/0x3b0\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x2d/0x70\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork_asm+0x11/0x20\n </TASK>",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T09:34:08.329Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/d1606090bb294cecb7de3c4ed177f5aa0abd4c4e",
            },
            {
               url: "https://git.kernel.org/stable/c/d88564c79d1cedaf2655f12261eca0d2796bde4e",
            },
            {
               url: "https://git.kernel.org/stable/c/2feac1e562be0efc621a6722644a90f355d53473",
            },
            {
               url: "https://git.kernel.org/stable/c/d62b14045c6511a7b2d4948d1a83a4e592deeb05",
            },
         ],
         title: "net/mlx5: Fix command bitmask initialization",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-50147",
      datePublished: "2024-11-07T09:31:24.151Z",
      dateReserved: "2024-10-21T19:36:19.958Z",
      dateUpdated: "2024-12-19T09:34:08.329Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2024-50147\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-07T10:15:06.507\",\"lastModified\":\"2024-11-18T21:19:21.917\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/mlx5: Fix command bitmask initialization\\n\\nCommand bitmask have a dedicated bit for MANAGE_PAGES command, this bit\\nisn't Initialize during command bitmask Initialization, only during\\nMANAGE_PAGES.\\n\\nIn addition, mlx5_cmd_trigger_completions() is trying to trigger\\ncompletion for MANAGE_PAGES command as well.\\n\\nHence, in case health error occurred before any MANAGE_PAGES command\\nhave been invoke (for example, during mlx5_enable_hca()),\\nmlx5_cmd_trigger_completions() will try to trigger completion for\\nMANAGE_PAGES command, which will result in null-ptr-deref error.[1]\\n\\nFix it by Initialize command bitmask correctly.\\n\\nWhile at it, re-write the code for better understanding.\\n\\n[1]\\nBUG: KASAN: null-ptr-deref in mlx5_cmd_trigger_completions+0x1db/0x600 [mlx5_core]\\nWrite of size 4 at addr 0000000000000214 by task kworker/u96:2/12078\\nCPU: 10 PID: 12078 Comm: kworker/u96:2 Not tainted 6.9.0-rc2_for_upstream_debug_2024_04_07_19_01 #1\\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\\nWorkqueue: mlx5_health0000:08:00.0 mlx5_fw_fatal_reporter_err_work [mlx5_core]\\nCall Trace:\\n <TASK>\\n dump_stack_lvl+0x7e/0xc0\\n kasan_report+0xb9/0xf0\\n kasan_check_range+0xec/0x190\\n mlx5_cmd_trigger_completions+0x1db/0x600 [mlx5_core]\\n mlx5_cmd_flush+0x94/0x240 [mlx5_core]\\n enter_error_state+0x6c/0xd0 [mlx5_core]\\n mlx5_fw_fatal_reporter_err_work+0xf3/0x480 [mlx5_core]\\n process_one_work+0x787/0x1490\\n ? lockdep_hardirqs_on_prepare+0x400/0x400\\n ? pwq_dec_nr_in_flight+0xda0/0xda0\\n ? assign_work+0x168/0x240\\n worker_thread+0x586/0xd30\\n ? rescuer_thread+0xae0/0xae0\\n kthread+0x2df/0x3b0\\n ? kthread_complete_and_exit+0x20/0x20\\n ret_from_fork+0x2d/0x70\\n ? kthread_complete_and_exit+0x20/0x20\\n ret_from_fork_asm+0x11/0x20\\n </TASK>\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/mlx5: Arreglar la inicialización de la máscara de bits del comando La máscara de bits del comando tiene un bit dedicado para el comando MANAGE_PAGES, este bit no se inicializa durante la inicialización de la máscara de bits del comando, solo durante MANAGE_PAGES. Además, mlx5_cmd_trigger_completions() también intenta activar la finalización del comando MANAGE_PAGES. Por lo tanto, en caso de que se produzca un error de estado antes de que se haya invocado cualquier comando MANAGE_PAGES (por ejemplo, durante mlx5_enable_hca()), mlx5_cmd_trigger_completions() intentará activar la finalización del comando MANAGE_PAGES, lo que dará como resultado un error null-ptr-deref.[1] Arréglalo inicializando la máscara de bits del comando correctamente. Mientras lo haces, reescribe el código para una mejor comprensión. [1] ERROR: KASAN: null-ptr-deref en mlx5_cmd_trigger_completions+0x1db/0x600 [mlx5_core] Escritura de tamaño 4 en la dirección 0000000000000214 por la tarea kworker/u96:2/12078 CPU: 10 PID: 12078 Comm: kworker/u96:2 No contaminado 6.9.0-rc2_for_upstream_debug_2024_04_07_19_01 #1 Nombre del hardware: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 Cola de trabajo: mlx5_health0000:08:00.0 mlx5_fw_fatal_reporter_err_work [mlx5_core] Seguimiento de llamadas:  dump_stack_lvl+0x7e/0xc0 kasan_report+0xb9/0xf0 kasan_check_range+0xec/0x190 mlx5_cmd_trigger_completions+0x1db/0x600 [mlx5_core] mlx5_cmd_flush+0x94/0x240 [mlx5_core] enter_error_state+0x6c/0xd0 [mlx5_core] mlx5_fw_fatal_reporter_err_work+0xf3/0x480 [mlx5_core] process_one_work+0x787/0x1490 ? lockdep_hardirqs_on_prepare+0x400/0x400 ? pwq_dec_nr_in_flight+0xda0/0xda0 ? asignar_trabajo+0x168/0x240 subproceso_trabajador+0x586/0xd30 ? subproceso_rescatador+0xae0/0xae0 subproceso_k+0x2df/0x3b0 ? subproceso_k_completo_y_salir+0x20/0x20 ret_de_la_bifurcación+0x2d/0x70 ? subproceso_k_completo_y_salir+0x20/0x20 ret_de_la_bifurcación_asm+0x11/0x20 \"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1\",\"versionEndExcluding\":\"6.1.115\",\"matchCriteriaId\":\"9E7318A8-E93E-495C-808C-47CF1377AB19\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.59\",\"matchCriteriaId\":\"5D15CA59-D15C-4ACD-8B03-A072DEAD2081\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.11.6\",\"matchCriteriaId\":\"E4486B12-007B-4794-9857-F07145637AA1\"},{\"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\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2feac1e562be0efc621a6722644a90f355d53473\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d1606090bb294cecb7de3c4ed177f5aa0abd4c4e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d62b14045c6511a7b2d4948d1a83a4e592deeb05\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d88564c79d1cedaf2655f12261eca0d2796bde4e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
   },
}


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