{"api_version":"1","generated_at":"2026-09-20T02:46:49+00:00","cve":"CVE-2026-90173","urls":{"html":"https://cve.report/CVE-2026-90173","api":"https://cve.report/api/cve/CVE-2026-90173.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-90173","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-90173"},"summary":{"title":"smb: smbdirect: free completion queues with ib_free_cq()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: smbdirect: free completion queues with ib_free_cq()\n\nsmbdirect_connection_destroy_qp() creates the send and receive completion\nqueues with ib_alloc_cq_any(), which for IB_POLL_WORKQUEUE arms an\ninternal completion handler that runs ib_cq_poll_work() on a workqueue.\nTearing those CQs down with ib_destroy_cq() frees them without first\ncancelling that poll work.\n\nIf the provider posts a completion late -- for example Soft-RoCE (rxe)\nposting an RNR error from rxe_receiver() after rdma_destroy_qp() -- the\nhandler re-queues ib_cq_poll_work() on the already-freed CQ, and a\nfollow-on access faults in rxe_req_notify_cq().\n\nUse ib_free_cq(), which cancel_work_sync()es the poll work before freeing\nthe CQ, so no completion handler can run against a freed queue.\n\n[ 1236.599526] ==================================================================\n[ 1236.602142] BUG: KASAN: slab-use-after-free in ib_cq_poll_work+0xd0/0x1a0\n[ 1236.605524] Read of size 8 at addr ffff888111865800 by task kworker/4:1H/82\n[ 1236.609017]\n[ 1236.609270] CPU: 4 UID: 0 PID: 82 Comm: kworker/4:1H Not tainted 7.2.0-rc3-next-20260717-virtme #110 PREEMPT(lazy)\n[ 1236.609287] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-debian-1.17.0-1 04/01/2014\n[ 1236.609498] Workqueue: ib-comp-wq ib_cq_poll_work\n[ 1236.609525] Call Trace:\n[ 1236.609536]  <TASK>\n[ 1236.609545]  __dump_stack+0x21/0x60\n[ 1236.609562]  dump_stack_lvl+0xc2/0x100\n[ 1236.609573]  print_address_description+0x77/0x200\n[ 1236.609587]  ? ib_cq_poll_work+0xd0/0x1a0\n[ 1236.609597]  print_report+0x58/0x70\n[ 1236.609607]  kasan_report+0x117/0x150\n[ 1236.609623]  ? ib_cq_poll_work+0xd0/0x1a0\n[ 1236.609636]  ? process_scheduled_works+0x954/0x1600\n[ 1236.609650]  ib_cq_poll_work+0xd0/0x1a0\n[ 1236.609662]  ? process_scheduled_works+0x954/0x1600\n[ 1236.609674]  process_scheduled_works+0xc22/0x1600\n[ 1236.609698]  ? __pfx_process_scheduled_works+0x10/0x10\n[ 1236.609713]  ? __pfx_assign_work+0x10/0x10\n[ 1236.609726]  ? lock_is_held_type+0x7b/0x110\n[ 1236.609741]  worker_thread+0x975/0xee0\n[ 1236.609757]  ? __pfx_do_raw_spin_lock+0x10/0x10\n[ 1236.609775]  ? __kthread_parkme+0x21e/0x260\n[ 1236.609789]  kthread+0x3a6/0x490\n[ 1236.609800]  ? __pfx_worker_thread+0x10/0x10\n[ 1236.609809]  ? __pfx_kthread+0x10/0x10\n[ 1236.609820]  ret_from_fork+0x55a/0xa20\n[ 1236.609835]  ? __pfx_ret_from_fork+0x10/0x10\n[ 1236.609850]  ? __pfx_kthread+0x10/0x10\n[ 1236.609861]  ret_from_fork_asm+0x1a/0x30\n[ 1236.609880]  </TASK>\n[ 1236.609886]\n[ 1236.661292] Allocated by task 5076:\n[ 1236.662640]  kasan_save_track+0x3e/0x80\n[ 1236.663842]  __kasan_kmalloc+0x72/0x90\n[ 1236.664763]  __kmalloc_noprof+0x2b0/0x5d0\n[ 1236.665356]  __ib_alloc_cq+0x284/0x1000\n[ 1236.666573]  __ib_alloc_cq_any+0x23e/0x340\n[ 1236.668654]  smbdirect_connection_create_qp+0x6f7/0x1070\n[ 1236.669757]  smbdirect_accept_connect_request+0x500/0x1ca0\n[ 1236.672625]  smbdirect_listen_rdma_event_handler+0x1655/0x1c50\n[ 1236.673930]  cma_listen_handler+0x1bf/0x260\n[ 1236.674923]  cma_cm_event_handler+0x128/0x380\n[ 1236.676926]  cma_ib_req_handler+0x2d3d/0x4de0\n[ 1236.678368]  cm_process_work+0xb0/0x530\n[ 1236.680454]  cm_queue_work_unlock+0xb1/0x230\n[ 1236.681673]  cm_work_handler+0x969f/0xdca0\n[ 1236.682704]  process_scheduled_works+0xc22/0x1600\n[ 1236.683447]  worker_thread+0x975/0xee0\n[ 1236.685901]  kthread+0x3a6/0x490\n[ 1236.688164]  ret_from_fork+0x55a/0xa20\n[ 1236.689522]  ret_from_fork_asm+0x1a/0x30\n[ 1236.690073]\n[ 1236.690378] Freed by task 5137:\n[ 1236.692242]  kasan_save_track+0x3e/0x80\n[ 1236.694272]  kasan_save_free_info+0x40/0x50\n[ 1236.695514]  __kasan_slab_free+0x3a/0x60\n[ 1236.696773]  kfree+0x14e/0x4e0\n[ 1236.697216]  ib_destroy_cq_user+0x18d/0x250\n[ 1236.699817]  smbdirect_connection_destroy_qp+0xf2/0x280\n[ 1236.702115]  smbdirect_socket_destroy_sync+0x1607/0x2720\n[ 1236.704062]  smbdirect_socket_release+0x140/0x280\n[ 1236.705286]  smb_direct_free_transpor\n---truncated---","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:10","updated_at":"2026-09-18 18:17:45"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"9.8","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"9.8","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/fe2c0cacbcff9d56c03b296f68f22151c4223b04","name":"https://git.kernel.org/stable/c/fe2c0cacbcff9d56c03b296f68f22151c4223b04","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8a953b1a47fffb71e70767bc1e914401e3c2f27f","name":"https://git.kernel.org/stable/c/8a953b1a47fffb71e70767bc1e914401e3c2f27f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90173","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90173","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6073eb3e31756d569c4853fb22724525739d0e0c 8a953b1a47fffb71e70767bc1e914401e3c2f27f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6073eb3e31756d569c4853fb22724525739d0e0c fe2c0cacbcff9d56c03b296f68f22151c4223b04 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.1","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"90173","cve":"CVE-2026-90173","epss":"0.005160000","percentile":"0.428860000","score_date":"2026-09-19","updated_at":"2026-09-20 00:14:30"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/smbdirect/connection.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8a953b1a47fffb71e70767bc1e914401e3c2f27f","status":"affected","version":"6073eb3e31756d569c4853fb22724525739d0e0c","versionType":"git"},{"lessThan":"fe2c0cacbcff9d56c03b296f68f22151c4223b04","status":"affected","version":"6073eb3e31756d569c4853fb22724525739d0e0c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/smbdirect/connection.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.1"},{"lessThan":"7.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"7.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"7.1","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: smbdirect: free completion queues with ib_free_cq()\n\nsmbdirect_connection_destroy_qp() creates the send and receive completion\nqueues with ib_alloc_cq_any(), which for IB_POLL_WORKQUEUE arms an\ninternal completion handler that runs ib_cq_poll_work() on a workqueue.\nTearing those CQs down with ib_destroy_cq() frees them without first\ncancelling that poll work.\n\nIf the provider posts a completion late -- for example Soft-RoCE (rxe)\nposting an RNR error from rxe_receiver() after rdma_destroy_qp() -- the\nhandler re-queues ib_cq_poll_work() on the already-freed CQ, and a\nfollow-on access faults in rxe_req_notify_cq().\n\nUse ib_free_cq(), which cancel_work_sync()es the poll work before freeing\nthe CQ, so no completion handler can run against a freed queue.\n\n[ 1236.599526] ==================================================================\n[ 1236.602142] BUG: KASAN: slab-use-after-free in ib_cq_poll_work+0xd0/0x1a0\n[ 1236.605524] Read of size 8 at addr ffff888111865800 by task kworker/4:1H/82\n[ 1236.609017]\n[ 1236.609270] CPU: 4 UID: 0 PID: 82 Comm: kworker/4:1H Not tainted 7.2.0-rc3-next-20260717-virtme #110 PREEMPT(lazy)\n[ 1236.609287] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-debian-1.17.0-1 04/01/2014\n[ 1236.609498] Workqueue: ib-comp-wq ib_cq_poll_work\n[ 1236.609525] Call Trace:\n[ 1236.609536]  <TASK>\n[ 1236.609545]  __dump_stack+0x21/0x60\n[ 1236.609562]  dump_stack_lvl+0xc2/0x100\n[ 1236.609573]  print_address_description+0x77/0x200\n[ 1236.609587]  ? ib_cq_poll_work+0xd0/0x1a0\n[ 1236.609597]  print_report+0x58/0x70\n[ 1236.609607]  kasan_report+0x117/0x150\n[ 1236.609623]  ? ib_cq_poll_work+0xd0/0x1a0\n[ 1236.609636]  ? process_scheduled_works+0x954/0x1600\n[ 1236.609650]  ib_cq_poll_work+0xd0/0x1a0\n[ 1236.609662]  ? process_scheduled_works+0x954/0x1600\n[ 1236.609674]  process_scheduled_works+0xc22/0x1600\n[ 1236.609698]  ? __pfx_process_scheduled_works+0x10/0x10\n[ 1236.609713]  ? __pfx_assign_work+0x10/0x10\n[ 1236.609726]  ? lock_is_held_type+0x7b/0x110\n[ 1236.609741]  worker_thread+0x975/0xee0\n[ 1236.609757]  ? __pfx_do_raw_spin_lock+0x10/0x10\n[ 1236.609775]  ? __kthread_parkme+0x21e/0x260\n[ 1236.609789]  kthread+0x3a6/0x490\n[ 1236.609800]  ? __pfx_worker_thread+0x10/0x10\n[ 1236.609809]  ? __pfx_kthread+0x10/0x10\n[ 1236.609820]  ret_from_fork+0x55a/0xa20\n[ 1236.609835]  ? __pfx_ret_from_fork+0x10/0x10\n[ 1236.609850]  ? __pfx_kthread+0x10/0x10\n[ 1236.609861]  ret_from_fork_asm+0x1a/0x30\n[ 1236.609880]  </TASK>\n[ 1236.609886]\n[ 1236.661292] Allocated by task 5076:\n[ 1236.662640]  kasan_save_track+0x3e/0x80\n[ 1236.663842]  __kasan_kmalloc+0x72/0x90\n[ 1236.664763]  __kmalloc_noprof+0x2b0/0x5d0\n[ 1236.665356]  __ib_alloc_cq+0x284/0x1000\n[ 1236.666573]  __ib_alloc_cq_any+0x23e/0x340\n[ 1236.668654]  smbdirect_connection_create_qp+0x6f7/0x1070\n[ 1236.669757]  smbdirect_accept_connect_request+0x500/0x1ca0\n[ 1236.672625]  smbdirect_listen_rdma_event_handler+0x1655/0x1c50\n[ 1236.673930]  cma_listen_handler+0x1bf/0x260\n[ 1236.674923]  cma_cm_event_handler+0x128/0x380\n[ 1236.676926]  cma_ib_req_handler+0x2d3d/0x4de0\n[ 1236.678368]  cm_process_work+0xb0/0x530\n[ 1236.680454]  cm_queue_work_unlock+0xb1/0x230\n[ 1236.681673]  cm_work_handler+0x969f/0xdca0\n[ 1236.682704]  process_scheduled_works+0xc22/0x1600\n[ 1236.683447]  worker_thread+0x975/0xee0\n[ 1236.685901]  kthread+0x3a6/0x490\n[ 1236.688164]  ret_from_fork+0x55a/0xa20\n[ 1236.689522]  ret_from_fork_asm+0x1a/0x30\n[ 1236.690073]\n[ 1236.690378] Freed by task 5137:\n[ 1236.692242]  kasan_save_track+0x3e/0x80\n[ 1236.694272]  kasan_save_free_info+0x40/0x50\n[ 1236.695514]  __kasan_slab_free+0x3a/0x60\n[ 1236.696773]  kfree+0x14e/0x4e0\n[ 1236.697216]  ib_destroy_cq_user+0x18d/0x250\n[ 1236.699817]  smbdirect_connection_destroy_qp+0xf2/0x280\n[ 1236.702115]  smbdirect_socket_destroy_sync+0x1607/0x2720\n[ 1236.704062]  smbdirect_socket_release+0x140/0x280\n[ 1236.705286]  smb_direct_free_transpor\n---truncated---"}],"metrics":[{"cvssV3_1":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"scenarios":[{"lang":"en","value":"AV:N - A remote InfiniBand CM CONNECT_REQUEST handled by smbdirect_listen_rdma_event_handler() reaches smbdirect_accept_connect_request(), which allocates the CQs; the same peer's later RDMA packets make rxe_receiver() post a completion after rdma_destroy_qp(), use-after-freeing them. ksmbd listens for this on RoCE/IB port 445 and iWARP port 5445.\nAC:L - The attacker controls both sides: they send the CONNECT_REQUEST that creates the CQs in smbdirect_connection_create_qp(), then disconnect or keep sending RDMA packets so rxe_receiver() queues ib_cq_poll_work() while smbdirect_connection_destroy_qp() frees the CQ with ib_destroy_cq() instead of ib_free_cq(), skipping cancel_work_sync().\nPR:N - CQ allocation runs in smbdirect_accept_connect_request() on the unauthenticated RDMA CM CONNECT_REQUEST path, before SMB Direct negotiate completes and before any SMB2 SESSION_SETUP. Connection teardown through __ksmbd_conn_release_work() likewise needs no credentials.\nUI:N - The attacker alone sends the RDMA CM CONNECT_REQUEST to the ksmbd listener started by smb_direct_listen() and later drops that connection so ksmbd_conn_handler_loop() calls smbdirect_connection_destroy_qp(); no local user mount, click, or prompt is required.\nS:U - The use-after-free is of the kernel struct ib_cq allocated by __ib_alloc_cq() and later touched by ib_cq_poll_work() on the same host; it does not cross a VM, IOMMU, or sandbox boundary.\nC:H - ib_cq_poll_work() reads a kmalloc-freed struct ib_cq (cq->wc and cq->device) after ib_destroy_cq_user(); reclaiming that slab object lets the attacker supply a fake ib_device and obtain a kernel read primitive through the poll/notify path.\nI:H - The same reclaimed ib_cq is used as cq->device->ops.poll_cq and req_notify_cq from ib_cq_poll_work(), so a sprayed fake ops table yields a kernel function-pointer hijack, not merely a crash.\nA:H - The demonstrated KASAN use-after-free in ib_cq_poll_work() and the follow-on oops in rxe_req_notify_cq() crash the kernel; a remote peer can repeat connect-and-teardown against the ksmbd SMB Direct listener."}]}],"providerMetadata":{"dateUpdated":"2026-09-18T17:53:33.402Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/8a953b1a47fffb71e70767bc1e914401e3c2f27f"},{"url":"https://git.kernel.org/stable/c/fe2c0cacbcff9d56c03b296f68f22151c4223b04"}],"title":"smb: smbdirect: free completion queues with ib_free_cq()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-90173","datePublished":"2026-09-17T16:07:00.463Z","dateReserved":"2026-09-11T19:38:34.791Z","dateUpdated":"2026-09-18T17:53:33.402Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:10","lastModifiedDate":"2026-09-18 18:17:45","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"90173","Ordinal":"1","Title":"smb: smbdirect: free completion queues with ib_free_cq()","CVE":"CVE-2026-90173","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"90173","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: smbdirect: free completion queues with ib_free_cq()\n\nsmbdirect_connection_destroy_qp() creates the send and receive completion\nqueues with ib_alloc_cq_any(), which for IB_POLL_WORKQUEUE arms an\ninternal completion handler that runs ib_cq_poll_work() on a workqueue.\nTearing those CQs down with ib_destroy_cq() frees them without first\ncancelling that poll work.\n\nIf the provider posts a completion late -- for example Soft-RoCE (rxe)\nposting an RNR error from rxe_receiver() after rdma_destroy_qp() -- the\nhandler re-queues ib_cq_poll_work() on the already-freed CQ, and a\nfollow-on access faults in rxe_req_notify_cq().\n\nUse ib_free_cq(), which cancel_work_sync()es the poll work before freeing\nthe CQ, so no completion handler can run against a freed queue.\n\n[ 1236.599526] ==================================================================\n[ 1236.602142] BUG: KASAN: slab-use-after-free in ib_cq_poll_work+0xd0/0x1a0\n[ 1236.605524] Read of size 8 at addr ffff888111865800 by task kworker/4:1H/82\n[ 1236.609017]\n[ 1236.609270] CPU: 4 UID: 0 PID: 82 Comm: kworker/4:1H Not tainted 7.2.0-rc3-next-20260717-virtme #110 PREEMPT(lazy)\n[ 1236.609287] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-debian-1.17.0-1 04/01/2014\n[ 1236.609498] Workqueue: ib-comp-wq ib_cq_poll_work\n[ 1236.609525] Call Trace:\n[ 1236.609536]  <TASK>\n[ 1236.609545]  __dump_stack+0x21/0x60\n[ 1236.609562]  dump_stack_lvl+0xc2/0x100\n[ 1236.609573]  print_address_description+0x77/0x200\n[ 1236.609587]  ? ib_cq_poll_work+0xd0/0x1a0\n[ 1236.609597]  print_report+0x58/0x70\n[ 1236.609607]  kasan_report+0x117/0x150\n[ 1236.609623]  ? ib_cq_poll_work+0xd0/0x1a0\n[ 1236.609636]  ? process_scheduled_works+0x954/0x1600\n[ 1236.609650]  ib_cq_poll_work+0xd0/0x1a0\n[ 1236.609662]  ? process_scheduled_works+0x954/0x1600\n[ 1236.609674]  process_scheduled_works+0xc22/0x1600\n[ 1236.609698]  ? __pfx_process_scheduled_works+0x10/0x10\n[ 1236.609713]  ? __pfx_assign_work+0x10/0x10\n[ 1236.609726]  ? lock_is_held_type+0x7b/0x110\n[ 1236.609741]  worker_thread+0x975/0xee0\n[ 1236.609757]  ? __pfx_do_raw_spin_lock+0x10/0x10\n[ 1236.609775]  ? __kthread_parkme+0x21e/0x260\n[ 1236.609789]  kthread+0x3a6/0x490\n[ 1236.609800]  ? __pfx_worker_thread+0x10/0x10\n[ 1236.609809]  ? __pfx_kthread+0x10/0x10\n[ 1236.609820]  ret_from_fork+0x55a/0xa20\n[ 1236.609835]  ? __pfx_ret_from_fork+0x10/0x10\n[ 1236.609850]  ? __pfx_kthread+0x10/0x10\n[ 1236.609861]  ret_from_fork_asm+0x1a/0x30\n[ 1236.609880]  </TASK>\n[ 1236.609886]\n[ 1236.661292] Allocated by task 5076:\n[ 1236.662640]  kasan_save_track+0x3e/0x80\n[ 1236.663842]  __kasan_kmalloc+0x72/0x90\n[ 1236.664763]  __kmalloc_noprof+0x2b0/0x5d0\n[ 1236.665356]  __ib_alloc_cq+0x284/0x1000\n[ 1236.666573]  __ib_alloc_cq_any+0x23e/0x340\n[ 1236.668654]  smbdirect_connection_create_qp+0x6f7/0x1070\n[ 1236.669757]  smbdirect_accept_connect_request+0x500/0x1ca0\n[ 1236.672625]  smbdirect_listen_rdma_event_handler+0x1655/0x1c50\n[ 1236.673930]  cma_listen_handler+0x1bf/0x260\n[ 1236.674923]  cma_cm_event_handler+0x128/0x380\n[ 1236.676926]  cma_ib_req_handler+0x2d3d/0x4de0\n[ 1236.678368]  cm_process_work+0xb0/0x530\n[ 1236.680454]  cm_queue_work_unlock+0xb1/0x230\n[ 1236.681673]  cm_work_handler+0x969f/0xdca0\n[ 1236.682704]  process_scheduled_works+0xc22/0x1600\n[ 1236.683447]  worker_thread+0x975/0xee0\n[ 1236.685901]  kthread+0x3a6/0x490\n[ 1236.688164]  ret_from_fork+0x55a/0xa20\n[ 1236.689522]  ret_from_fork_asm+0x1a/0x30\n[ 1236.690073]\n[ 1236.690378] Freed by task 5137:\n[ 1236.692242]  kasan_save_track+0x3e/0x80\n[ 1236.694272]  kasan_save_free_info+0x40/0x50\n[ 1236.695514]  __kasan_slab_free+0x3a/0x60\n[ 1236.696773]  kfree+0x14e/0x4e0\n[ 1236.697216]  ib_destroy_cq_user+0x18d/0x250\n[ 1236.699817]  smbdirect_connection_destroy_qp+0xf2/0x280\n[ 1236.702115]  smbdirect_socket_destroy_sync+0x1607/0x2720\n[ 1236.704062]  smbdirect_socket_release+0x140/0x280\n[ 1236.705286]  smb_direct_free_transpor\n---truncated---","Type":"Description","Title":"smb: smbdirect: free completion queues with ib_free_cq()"}]}}}