cve-2023-52851
Vulnerability from cvelistv5
Published
2024-05-21 15:31
Modified
2024-08-02 23:11
Severity
Summary
IB/mlx5: Fix init stage error handling to avoid double free of same QP and UAF
References
SourceURLTags
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2ef422f063b74adcc4a4a9004b0a87bb55e0a836
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/437f033e30c897bb3723eac9e9003cd9f88d00a3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4f4a7a7d1404297f2a92df0046f7e64dc5c52dd9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6387f269d84e6e149499408c4d1fc805017729b2
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mlx5: Fix init stage error handling to avoid double free of same QP and UAF\n\nIn the unlikely event that workqueue allocation fails and returns NULL in\nmlx5_mkey_cache_init(), delete the call to\nmlx5r_umr_resource_cleanup() (which frees the QP) in\nmlx5_ib_stage_post_ib_reg_umr_init().  This will avoid attempted double\nfree of the same QP when __mlx5_ib_add() does its cleanup.\n\nResolves a splat:\n\n   Syzkaller reported a UAF in ib_destroy_qp_user\n\n   workqueue: Failed to create a rescuer kthread for wq \"mkey_cache\": -EINTR\n   infiniband mlx5_0: mlx5_mkey_cache_init:981:(pid 1642):\n   failed to create work queue\n   infiniband mlx5_0: mlx5_ib_stage_post_ib_reg_umr_init:4075:(pid 1642):\n   mr cache init failed -12\n   ==================================================================\n   BUG: KASAN: slab-use-after-free in ib_destroy_qp_user (drivers/infiniband/core/verbs.c:2073)\n   Read of size 8 at addr ffff88810da310a8 by task repro_upstream/1642\n\n   Call Trace:\n   \u003cTASK\u003e\n   kasan_report (mm/kasan/report.c:590)\n   ib_destroy_qp_user (drivers/infiniband/core/verbs.c:2073)\n   mlx5r_umr_resource_cleanup (drivers/infiniband/hw/mlx5/umr.c:198)\n   __mlx5_ib_add (drivers/infiniband/hw/mlx5/main.c:4178)\n   mlx5r_probe (drivers/infiniband/hw/mlx5/main.c:4402)\n   ...\n   \u003c/TASK\u003e\n\n   Allocated by task 1642:\n   __kmalloc (./include/linux/kasan.h:198 mm/slab_common.c:1026\n   mm/slab_common.c:1039)\n   create_qp (./include/linux/slab.h:603 ./include/linux/slab.h:720\n   ./include/rdma/ib_verbs.h:2795 drivers/infiniband/core/verbs.c:1209)\n   ib_create_qp_kernel (drivers/infiniband/core/verbs.c:1347)\n   mlx5r_umr_resource_init (drivers/infiniband/hw/mlx5/umr.c:164)\n   mlx5_ib_stage_post_ib_reg_umr_init (drivers/infiniband/hw/mlx5/main.c:4070)\n   __mlx5_ib_add (drivers/infiniband/hw/mlx5/main.c:4168)\n   mlx5r_probe (drivers/infiniband/hw/mlx5/main.c:4402)\n   ...\n\n   Freed by task 1642:\n   __kmem_cache_free (mm/slub.c:1826 mm/slub.c:3809 mm/slub.c:3822)\n   ib_destroy_qp_user (drivers/infiniband/core/verbs.c:2112)\n   mlx5r_umr_resource_cleanup (drivers/infiniband/hw/mlx5/umr.c:198)\n   mlx5_ib_stage_post_ib_reg_umr_init (drivers/infiniband/hw/mlx5/main.c:4076\n   drivers/infiniband/hw/mlx5/main.c:4065)\n   __mlx5_ib_add (drivers/infiniband/hw/mlx5/main.c:4168)\n   mlx5r_probe (drivers/infiniband/hw/mlx5/main.c:4402)\n   ..."
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    "cveId": "CVE-2023-52851",
    "datePublished": "2024-05-21T15:31:47.220Z",
    "dateReserved": "2024-05-21T15:19:24.255Z",
    "dateUpdated": "2024-08-02T23:11:36.176Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52851\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T16:15:22.160\",\"lastModified\":\"2024-05-21T16:53:56.550\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nIB/mlx5: Fix init stage error handling to avoid double free of same QP and UAF\\n\\nIn the unlikely event that workqueue allocation fails and returns NULL in\\nmlx5_mkey_cache_init(), delete the call to\\nmlx5r_umr_resource_cleanup() (which frees the QP) in\\nmlx5_ib_stage_post_ib_reg_umr_init().  This will avoid attempted double\\nfree of the same QP when __mlx5_ib_add() does its cleanup.\\n\\nResolves a splat:\\n\\n   Syzkaller reported a UAF in ib_destroy_qp_user\\n\\n   workqueue: Failed to create a rescuer kthread for wq \\\"mkey_cache\\\": -EINTR\\n   infiniband mlx5_0: mlx5_mkey_cache_init:981:(pid 1642):\\n   failed to create work queue\\n   infiniband mlx5_0: mlx5_ib_stage_post_ib_reg_umr_init:4075:(pid 1642):\\n   mr cache init failed -12\\n   ==================================================================\\n   BUG: KASAN: slab-use-after-free in ib_destroy_qp_user (drivers/infiniband/core/verbs.c:2073)\\n   Read of size 8 at addr ffff88810da310a8 by task repro_upstream/1642\\n\\n   Call Trace:\\n   \u003cTASK\u003e\\n   kasan_report (mm/kasan/report.c:590)\\n   ib_destroy_qp_user (drivers/infiniband/core/verbs.c:2073)\\n   mlx5r_umr_resource_cleanup (drivers/infiniband/hw/mlx5/umr.c:198)\\n   __mlx5_ib_add (drivers/infiniband/hw/mlx5/main.c:4178)\\n   mlx5r_probe (drivers/infiniband/hw/mlx5/main.c:4402)\\n   ...\\n   \u003c/TASK\u003e\\n\\n   Allocated by task 1642:\\n   __kmalloc (./include/linux/kasan.h:198 mm/slab_common.c:1026\\n   mm/slab_common.c:1039)\\n   create_qp (./include/linux/slab.h:603 ./include/linux/slab.h:720\\n   ./include/rdma/ib_verbs.h:2795 drivers/infiniband/core/verbs.c:1209)\\n   ib_create_qp_kernel (drivers/infiniband/core/verbs.c:1347)\\n   mlx5r_umr_resource_init (drivers/infiniband/hw/mlx5/umr.c:164)\\n   mlx5_ib_stage_post_ib_reg_umr_init (drivers/infiniband/hw/mlx5/main.c:4070)\\n   __mlx5_ib_add (drivers/infiniband/hw/mlx5/main.c:4168)\\n   mlx5r_probe (drivers/infiniband/hw/mlx5/main.c:4402)\\n   ...\\n\\n   Freed by task 1642:\\n   __kmem_cache_free (mm/slub.c:1826 mm/slub.c:3809 mm/slub.c:3822)\\n   ib_destroy_qp_user (drivers/infiniband/core/verbs.c:2112)\\n   mlx5r_umr_resource_cleanup (drivers/infiniband/hw/mlx5/umr.c:198)\\n   mlx5_ib_stage_post_ib_reg_umr_init (drivers/infiniband/hw/mlx5/main.c:4076\\n   drivers/infiniband/hw/mlx5/main.c:4065)\\n   __mlx5_ib_add (drivers/infiniband/hw/mlx5/main.c:4168)\\n   mlx5r_probe (drivers/infiniband/hw/mlx5/main.c:4402)\\n   ...\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: IB/mlx5: corrige el manejo de errores de la etapa inicial para evitar la doble liberaci\u00f3n del mismo QP y UAF. En el improbable caso de que la asignaci\u00f3n de la cola de trabajo falle y devuelva NULL en mlx5_mkey_cache_init(), elimine la llamada a mlx5r_umr_resource_cleanup() (que libera el QP) en mlx5_ib_stage_post_ib_reg_umr_init(). Esto evitar\u00e1 intentos de double free del mismo QP cuando __mlx5_ib_add() realice su limpieza. Resuelve un problema: Syzkaller inform\u00f3 un UAF en ib_destroy_qp_user workqueue: No se pudo crear un kthread de rescate para wq \\\"mkey_cache\\\": -EINTR infiniband mlx5_0: mlx5_mkey_cache_init:981:(pid 1642): no se pudo crear la cola de trabajo infiniband mlx5_0: mlx5_ib_stage_post_ib_reg_umr_ inicio: 4075: (pid 1642): el inicio de cach\u00e9 de mr fall\u00f3 -12 ========================================= =========================== BUG: KASAN: uso de losa despu\u00e9s de la liberaci\u00f3n en ib_destroy_qp_user (drivers/infiniband/core/verbs.c :2073) Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff88810da310a8 mediante la tarea repro_upstream/1642 Rastreo de llamadas:  kasan_report (mm/kasan/report.c:590) ib_destroy_qp_user (drivers/infiniband/core/verbs.c:2073) mlx5r_umr_resource_cleanup (drivers /infiniband/hw/mlx5/umr.c:198) __mlx5_ib_add (drivers/infiniband/hw/mlx5/main.c:4178) mlx5r_probe (drivers/infiniband/hw/mlx5/main.c:4402) ...  Asignado por la tarea 1642: __kmalloc (./include/linux/kasan.h:198 mm/slab_common.c:1026 mm/slab_common.c:1039) create_qp (./include/linux/slab.h:603 ./ include/linux/slab.h:720 ./include/rdma/ib_verbs.h:2795 drivers/infiniband/core/verbs.c:1209) ib_create_qp_kernel (drivers/infiniband/core/verbs.c:1347) mlx5r_umr_resource_init (drivers/ infiniband/hw/mlx5/umr.c:164) mlx5_ib_stage_post_ib_reg_umr_init (drivers/infiniband/hw/mlx5/main.c:4070) __mlx5_ib_add (drivers/infiniband/hw/mlx5/main.c:4168) mlx5r_probe (drivers/infiniband/ hw/mlx5/main.c:4402) ... Liberado por la tarea 1642: __kmem_cache_free (mm/slub.c:1826 mm/slub.c:3809 mm/slub.c:3822) ib_destroy_qp_user (drivers/infiniband/core/ verbs.c:2112) mlx5r_umr_resource_cleanup (drivers/infiniband/hw/mlx5/umr.c:198) mlx5_ib_stage_post_ib_reg_umr_init (drivers/infiniband/hw/mlx5/main.c:4076 drivers/infiniband/hw/mlx5/main.c:4065 ) __mlx5_ib_add (controladores/infiniband/hw/mlx5/main.c:4168) mlx5r_probe (controladores/infiniband/hw/mlx5/main.c:4402) ...\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2ef422f063b74adcc4a4a9004b0a87bb55e0a836\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/437f033e30c897bb3723eac9e9003cd9f88d00a3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4f4a7a7d1404297f2a92df0046f7e64dc5c52dd9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6387f269d84e6e149499408c4d1fc805017729b2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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