{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-52851", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T15:19:24.255Z", "datePublished": "2024-05-21T15:31:47.220Z", "dateUpdated": "2024-12-19T08:27:11.680Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T08:27:11.680Z"}, "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 <TASK>\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 </TASK>\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 ..."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/hw/mlx5/main.c"], "versions": [{"version": "04876c12c19e94bbbc94bb0446c7bc7cd75163de", "lessThan": "437f033e30c897bb3723eac9e9003cd9f88d00a3", "status": "affected", "versionType": "git"}, {"version": "04876c12c19e94bbbc94bb0446c7bc7cd75163de", "lessThan": "4f4a7a7d1404297f2a92df0046f7e64dc5c52dd9", "status": "affected", "versionType": "git"}, {"version": "04876c12c19e94bbbc94bb0446c7bc7cd75163de", "lessThan": "6387f269d84e6e149499408c4d1fc805017729b2", "status": "affected", "versionType": "git"}, {"version": "04876c12c19e94bbbc94bb0446c7bc7cd75163de", "lessThan": "2ef422f063b74adcc4a4a9004b0a87bb55e0a836", "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/infiniband/hw/mlx5/main.c"], "versions": [{"version": "5.19", "status": "affected"}, {"version": "0", "lessThan": "5.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.63", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5.12", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.2", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.7", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/437f033e30c897bb3723eac9e9003cd9f88d00a3"}, {"url": "https://git.kernel.org/stable/c/4f4a7a7d1404297f2a92df0046f7e64dc5c52dd9"}, {"url": "https://git.kernel.org/stable/c/6387f269d84e6e149499408c4d1fc805017729b2"}, {"url": "https://git.kernel.org/stable/c/2ef422f063b74adcc4a4a9004b0a87bb55e0a836"}], "title": "IB/mlx5: Fix init stage error handling to avoid double free of same QP and UAF", "x_generator": {"engine": "bippy-5f407fcff5a0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52851", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-22T18:56:10.534699Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:22:32.402Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:11:36.176Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/437f033e30c897bb3723eac9e9003cd9f88d00a3", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4f4a7a7d1404297f2a92df0046f7e64dc5c52dd9", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/6387f269d84e6e149499408c4d1fc805017729b2", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/2ef422f063b74adcc4a4a9004b0a87bb55e0a836", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/437f033e30c897bb3723eac9e9003cd9f88d00a3", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4f4a7a7d1404297f2a92df0046f7e64dc5c52dd9", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/6387f269d84e6e149499408c4d1fc805017729b2", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/2ef422f063b74adcc4a4a9004b0a87bb55e0a836", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:11:36.176Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52851", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-22T18:56:10.534699Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-22T18:56:16.549Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "IB/mlx5: Fix init stage error handling to avoid double free of same QP and UAF", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "04876c12c19e", "lessThan": "437f033e30c8", "versionType": "git"}, {"status": "affected", "version": "04876c12c19e", "lessThan": "4f4a7a7d1404", "versionType": "git"}, {"status": "affected", "version": "04876c12c19e", "lessThan": "6387f269d84e", "versionType": "git"}, {"status": "affected", "version": "04876c12c19e", "lessThan": "2ef422f063b7", "versionType": "git"}], "programFiles": ["drivers/infiniband/hw/mlx5/main.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.19"}, {"status": "unaffected", "version": "0", "lessThan": "5.19", "versionType": "custom"}, {"status": "unaffected", "version": "6.1.63", "versionType": "custom", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.5.12", "versionType": "custom", "lessThanOrEqual": "6.5.*"}, {"status": "unaffected", "version": "6.6.2", "versionType": "custom", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.7", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/infiniband/hw/mlx5/main.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/437f033e30c897bb3723eac9e9003cd9f88d00a3"}, {"url": "https://git.kernel.org/stable/c/4f4a7a7d1404297f2a92df0046f7e64dc5c52dd9"}, {"url": "https://git.kernel.org/stable/c/6387f269d84e6e149499408c4d1fc805017729b2"}, {"url": "https://git.kernel.org/stable/c/2ef422f063b74adcc4a4a9004b0a87bb55e0a836"}], "x_generator": {"engine": "bippy-a5840b7849dd"}, "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 <TASK>\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 </TASK>\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 ..."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:18:27.094Z"}}}, "cveMetadata": {"cveId": "CVE-2023-52851", "state": "PUBLISHED", "dateUpdated": "2024-08-02T23:11:36.176Z", "dateReserved": "2024-05-21T15:19:24.255Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-21T15:31:47.220Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"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 <TASK>\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 </TASK>\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) ..."}], "id": "CVE-2023-52851", "lastModified": "2024-11-21T08:40:43.290", "metrics": {}, "published": "2024-05-21T16:15:22.160", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "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": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/2ef422f063b74adcc4a4a9004b0a87bb55e0a836"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/437f033e30c897bb3723eac9e9003cd9f88d00a3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/4f4a7a7d1404297f2a92df0046f7e64dc5c52dd9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/6387f269d84e6e149499408c4d1fc805017729b2"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: IB/mlx5: Fix init stage error handling to avoid double free of same QP and UAF", "id": "2282667", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282667"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-415", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nIB/mlx5: Fix init stage error handling to avoid double free of same QP and UAF\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.\nResolves a splat:\nSyzkaller reported a UAF in ib_destroy_qp_user\nworkqueue: Failed to create a rescuer kthread for wq \"mkey_cache\": -EINTR\ninfiniband mlx5_0: mlx5_mkey_cache_init:981:(pid 1642):\nfailed to create work queue\ninfiniband mlx5_0: mlx5_ib_stage_post_ib_reg_umr_init:4075:(pid 1642):\nmr cache init failed -12\n==================================================================\nBUG: KASAN: slab-use-after-free in ib_destroy_qp_user (drivers/infiniband/core/verbs.c:2073)\nRead of size 8 at addr ffff88810da310a8 by task repro_upstream/1642\nCall Trace:\n<TASK>\nkasan_report (mm/kasan/report.c:590)\nib_destroy_qp_user (drivers/infiniband/core/verbs.c:2073)\nmlx5r_umr_resource_cleanup (drivers/infiniband/hw/mlx5/umr.c:198)\n__mlx5_ib_add (drivers/infiniband/hw/mlx5/main.c:4178)\nmlx5r_probe (drivers/infiniband/hw/mlx5/main.c:4402)\n...\n</TASK>\nAllocated by task 1642:\n__kmalloc (./include/linux/kasan.h:198 mm/slab_common.c:1026\nmm/slab_common.c:1039)\ncreate_qp (./include/linux/slab.h:603 ./include/linux/slab.h:720\n./include/rdma/ib_verbs.h:2795 drivers/infiniband/core/verbs.c:1209)\nib_create_qp_kernel (drivers/infiniband/core/verbs.c:1347)\nmlx5r_umr_resource_init (drivers/infiniband/hw/mlx5/umr.c:164)\nmlx5_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)\nmlx5r_probe (drivers/infiniband/hw/mlx5/main.c:4402)\n...\nFreed by task 1642:\n__kmem_cache_free (mm/slub.c:1826 mm/slub.c:3809 mm/slub.c:3822)\nib_destroy_qp_user (drivers/infiniband/core/verbs.c:2112)\nmlx5r_umr_resource_cleanup (drivers/infiniband/hw/mlx5/umr.c:198)\nmlx5_ib_stage_post_ib_reg_umr_init (drivers/infiniband/hw/mlx5/main.c:4076\ndrivers/infiniband/hw/mlx5/main.c:4065)\n__mlx5_ib_add (drivers/infiniband/hw/mlx5/main.c:4168)\nmlx5r_probe (drivers/infiniband/hw/mlx5/main.c:4402)\n..."], "name": "CVE-2023-52851", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52851\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52851\nhttps://lore.kernel.org/linux-cve-announce/2024052114-CVE-2023-52851-b53c@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 6.1.63, kernel 6.5.12, kernel 6.6.2, kernel 6.7"}