{
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        {
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          "product": "Linux",
          "programFiles": [
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          ],
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            "drivers/scsi/storvsc_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "version": "4.11"
            },
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            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.19",
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              "status": "unaffected",
              "version": "6.19.9",
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            {
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              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: storvsc: Fix scheduling while atomic on PREEMPT_RT\n\nThis resolves the follow splat and lock-up when running with PREEMPT_RT\nenabled on Hyper-V:\n\n[  415.140818] BUG: scheduling while atomic: stress-ng-iomix/1048/0x00000002\n[  415.140822] INFO: lockdep is turned off.\n[  415.140823] Modules linked in: intel_rapl_msr intel_rapl_common intel_uncore_frequency_common intel_pmc_core pmt_telemetry pmt_discovery pmt_class intel_pmc_ssram_telemetry intel_vsec ghash_clmulni_intel aesni_intel rapl binfmt_misc nls_ascii nls_cp437 vfat fat snd_pcm hyperv_drm snd_timer drm_client_lib drm_shmem_helper snd sg soundcore drm_kms_helper pcspkr hv_balloon hv_utils evdev joydev drm configfs efi_pstore nfnetlink vsock_loopback vmw_vsock_virtio_transport_common hv_sock vmw_vsock_vmci_transport vsock vmw_vmci efivarfs autofs4 ext4 crc16 mbcache jbd2 sr_mod sd_mod cdrom hv_storvsc serio_raw hid_generic scsi_transport_fc hid_hyperv scsi_mod hid hv_netvsc hyperv_keyboard scsi_common\n[  415.140846] Preemption disabled at:\n[  415.140847] [\u003cffffffffc0656171\u003e] storvsc_queuecommand+0x2e1/0xbe0 [hv_storvsc]\n[  415.140854] CPU: 8 UID: 0 PID: 1048 Comm: stress-ng-iomix Not tainted 6.19.0-rc7 #30 PREEMPT_{RT,(full)}\n[  415.140856] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 09/04/2024\n[  415.140857] Call Trace:\n[  415.140861]  \u003cTASK\u003e\n[  415.140861]  ? storvsc_queuecommand+0x2e1/0xbe0 [hv_storvsc]\n[  415.140863]  dump_stack_lvl+0x91/0xb0\n[  415.140870]  __schedule_bug+0x9c/0xc0\n[  415.140875]  __schedule+0xdf6/0x1300\n[  415.140877]  ? rtlock_slowlock_locked+0x56c/0x1980\n[  415.140879]  ? rcu_is_watching+0x12/0x60\n[  415.140883]  schedule_rtlock+0x21/0x40\n[  415.140885]  rtlock_slowlock_locked+0x502/0x1980\n[  415.140891]  rt_spin_lock+0x89/0x1e0\n[  415.140893]  hv_ringbuffer_write+0x87/0x2a0\n[  415.140899]  vmbus_sendpacket_mpb_desc+0xb6/0xe0\n[  415.140900]  ? rcu_is_watching+0x12/0x60\n[  415.140902]  storvsc_queuecommand+0x669/0xbe0 [hv_storvsc]\n[  415.140904]  ? HARDIRQ_verbose+0x10/0x10\n[  415.140908]  ? __rq_qos_issue+0x28/0x40\n[  415.140911]  scsi_queue_rq+0x760/0xd80 [scsi_mod]\n[  415.140926]  __blk_mq_issue_directly+0x4a/0xc0\n[  415.140928]  blk_mq_issue_direct+0x87/0x2b0\n[  415.140931]  blk_mq_dispatch_queue_requests+0x120/0x440\n[  415.140933]  blk_mq_flush_plug_list+0x7a/0x1a0\n[  415.140935]  __blk_flush_plug+0xf4/0x150\n[  415.140940]  __submit_bio+0x2b2/0x5c0\n[  415.140944]  ? submit_bio_noacct_nocheck+0x272/0x360\n[  415.140946]  submit_bio_noacct_nocheck+0x272/0x360\n[  415.140951]  ext4_read_bh_lock+0x3e/0x60 [ext4]\n[  415.140995]  ext4_block_write_begin+0x396/0x650 [ext4]\n[  415.141018]  ? __pfx_ext4_da_get_block_prep+0x10/0x10 [ext4]\n[  415.141038]  ext4_da_write_begin+0x1c4/0x350 [ext4]\n[  415.141060]  generic_perform_write+0x14e/0x2c0\n[  415.141065]  ext4_buffered_write_iter+0x6b/0x120 [ext4]\n[  415.141083]  vfs_write+0x2ca/0x570\n[  415.141087]  ksys_write+0x76/0xf0\n[  415.141089]  do_syscall_64+0x99/0x1490\n[  415.141093]  ? rcu_is_watching+0x12/0x60\n[  415.141095]  ? finish_task_switch.isra.0+0xdf/0x3d0\n[  415.141097]  ? rcu_is_watching+0x12/0x60\n[  415.141098]  ? lock_release+0x1f0/0x2a0\n[  415.141100]  ? rcu_is_watching+0x12/0x60\n[  415.141101]  ? finish_task_switch.isra.0+0xe4/0x3d0\n[  415.141103]  ? rcu_is_watching+0x12/0x60\n[  415.141104]  ? __schedule+0xb34/0x1300\n[  415.141106]  ? hrtimer_try_to_cancel+0x1d/0x170\n[  415.141109]  ? do_nanosleep+0x8b/0x160\n[  415.141111]  ? hrtimer_nanosleep+0x89/0x100\n[  415.141114]  ? __pfx_hrtimer_wakeup+0x10/0x10\n[  415.141116]  ? xfd_validate_state+0x26/0x90\n[  415.141118]  ? rcu_is_watching+0x12/0x60\n[  415.141120]  ? do_syscall_64+0x1e0/0x1490\n[  415.141121]  ? do_syscall_64+0x1e0/0x1490\n[  415.141123]  ? rcu_is_watching+0x12/0x60\n[  415.141124]  ? do_syscall_64+0x1e0/0x1490\n[  415.141125]  ? do_syscall_64+0x1e0/0x1490\n[  415.141127]  ? irqentry_exit+0x140/0\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:25:19.772Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/cf00cb15f2515e38d3b7571bf6800b7c6ce70a84"
        },
        {
          "url": "https://git.kernel.org/stable/c/b82462af23e45e066dd56d2736ea70159a6ad647"
        },
        {
          "url": "https://git.kernel.org/stable/c/91ab59f76d0866079420ebff1c7959fcd87a242e"
        },
        {
          "url": "https://git.kernel.org/stable/c/e7919a293f9b6101e38bde0d8613daea6c9955df"
        },
        {
          "url": "https://git.kernel.org/stable/c/f8db760f4f52a73a022a3d6c84c488ead952a9b5"
        },
        {
          "url": "https://git.kernel.org/stable/c/c2e73d8acd056347a70047e6be7cd98e0e811dfa"
        },
        {
          "url": "https://git.kernel.org/stable/c/c7984d196476adcbd51c0ce386d7e90277198d57"
        },
        {
          "url": "https://git.kernel.org/stable/c/57297736c08233987e5d29ce6584c6ca2a831b12"
        }
      ],
      "title": "scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43475",
    "datePublished": "2026-05-08T14:22:33.553Z",
    "dateReserved": "2026-05-01T14:12:56.011Z",
    "dateUpdated": "2026-05-11T22:25:19.772Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
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          "vendor": "Linux",
          "versions": [
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            },
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            },
            {
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              "status": "unaffected",
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            },
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              "status": "unaffected",
              "version": "6.12.77",
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            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.17",
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            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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                {
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                {
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                {
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                  "vulnerable": true
                },
                {
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: rawsock: cancel tx_work before socket teardown\n\nIn rawsock_release(), cancel any pending tx_work and purge the write\nqueue before orphaning the socket.  rawsock_tx_work runs on the system\nworkqueue and calls nfc_data_exchange which dereferences the NCI\ndevice.  Without synchronization, tx_work can race with socket and\ndevice teardown when a process is killed (e.g. by SIGKILL), leading\nto use-after-free or leaked references.\n\nSet SEND_SHUTDOWN first so that if tx_work is already running it will\nsee the flag and skip transmitting, then use cancel_work_sync to wait\nfor any in-progress execution to finish, and finally purge any\nremaining queued skbs."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The attacker needs local access to create an AF_NFC socket and perform socket operations (connect, sendmsg, close). NFC is the affected subsystem but the exploit entry is through local syscalls.\nAC:L - The attacker controls both sides of the race \u2014 they schedule tx_work via sendmsg() then immediately close the socket. The race is reliably triggerable by the attacker.\nPR:L - Creating a SOCK_SEQPACKET NFC socket requires no capabilities (only SOCK_RAW requires CAP_NET_RAW). Any unprivileged local user in the init network namespace can create and use these sockets.\nUI:N - No user interaction needed. The attacker opens, connects, sends, and closes the NFC socket entirely on their own.\nS:U - Standard kernel use-after-free within the same security authority (kernel privilege escalation). No cross-boundary escape such as VM or sandbox escape.\nC:H - UAF on a struct containing function pointers (nfc_dev with dev-\u003eops) allows an attacker to read arbitrary kernel memory via heap spray techniques placing controlled data in the freed allocation.\nI:H - The UAF dereferences dev-\u003eops-\u003eim_transceive, a function pointer on freed memory. Via heap spraying, the attacker can hijack this function pointer to achieve arbitrary code execution in kernel context.\nA:H - Use-after-free on kernel objects causes kernel crash/oops when the freed memory is dereferenced, leading to denial of service."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:21:18.928Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9b2d23cd09e1cb56bdf0e4d5614703094159f16c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Reject MPA FPDU length underflow before signed receive math\n\nA malicious connected siw peer can send an iWARP FPDU whose MPA length\nfield (c_hdr-\u003empa_len, 16 bit big-endian, peer-controlled) is smaller\nthan the fixed DDP/RDMAP header for the announced opcode. Soft-iWARP\nparses the full header in siw_get_hdr() based on iwarp_pktinfo[opcode]\n.hdr_len, but never compares mpa_len against that header length.\n\nsiw_tcp_rx_data() then derives\n\n    srx-\u003efpdu_part_rem = be16_to_cpu(mpa_len) - fpdu_part_rcvd\n                         + MPA_HDR_SIZE;\n\nwhere fpdu_part_rcvd equals iwarp_pktinfo[opcode].hdr_len at this\npoint. For a tagged WRITE (hdr_len 16, MPA_HDR_SIZE 2) the smallest\non-wire mpa_len of 0 yields fpdu_part_rem = -14, and any mpa_len below\nhdr_len - MPA_HDR_SIZE underflows to a negative int.\n\nThe signed value then flows into siw_proc_write()/siw_proc_rresp() as\n\n    bytes = min(srx-\u003efpdu_part_rem, srx-\u003eskb_new);\n\nis handed to siw_check_mem() as an int len (whose interval check\naddr + len \u003e mem-\u003eva + mem-\u003elen is satisfied for a valid base when\nlen is negative), and reaches siw_rx_data() -\u003e siw_rx_kva() /\nsiw_rx_umem() -\u003e skb_copy_bits() as a signed copy length. The header\ncopy branch in skb_copy_bits() promotes that to size_t, producing a\nmulti-gigabyte read.\n\nKASAN under a KUnit harness that drives the real kernel TCP receive\npath -- a loopback AF_INET socketpair, the malformed FPDU written via\nkernel_sendmsg, sk_data_ready firing in softirq, tcp_read_sock\ndispatching to siw_tcp_rx_data -- reports:\n\n    BUG: KASAN: use-after-free in skb_copy_bits+0x284/0x480\n    Read of size 4294967295 at addr ffff888...\n    Call Trace:\n     skb_copy_bits\n     siw_rx_kva\n     siw_rx_data\n     siw_check_mem\n     siw_proc_write\n     siw_tcp_rx_data\n     __tcp_read_sock\n     siw_qp_llp_data_ready\n     tcp_data_ready\n     tcp_data_queue\n\nAdd the missing invariant at the earliest point where the peer header\nis fully assembled. iwarp_pktinfo[*].hdr_len - MPA_HDR_SIZE is exactly\nthe value the siw transmitter uses as the minimum mpa_len for each\nopcode (drivers/infiniband/sw/siw/siw_qp.c:33), so this matches the\nprotocol contract. Out-of-range FPDUs terminate the connection with\nTERM_ERROR_LAYER_LLP / LLP_ETYPE_MPA / LLP_ECODE_FPDU_START -- which\nis RFC 5044 Section 8 error code 3 (\"Marker and ULPDU Length fields\ndo not agree on the start of an FPDU\"), the correct framing-error\nclass for this inconsistency."
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              "value": "AV:N - A remote attacker triggers this by sending a malformed iWARP FPDU over an established TCP connection; the kernel processes it in the TCP softirq receive path via siw_tcp_rx_data without any local access.\nAC:L - The attacker fully controls the peer-supplied mpa_len field and can reliably underflow fpdu_part_rem with a single crafted packet (e.g., mpa_len=0 on a tagged WRITE with hdr_len=16); no races or uncontrollable memory layout are required.\nPR:N - Exploitation requires only network reachability to a host running an iWARP listener (e.g., SMB Direct/RDMA-over-TCP on siw); completing the MPA/TCP handshake does not require any local account or elevated privileges on the victim system.\nUI:N - No victim user interaction is needed; the malformed FPDU is processed automatically when received on the connected TCP socket during normal kernel softirq handling.\nS:U - Impact is confined to kernel memory and RDMA-registered buffers on the victim host; this is standard in-kernel memory corruption without crossing a VM, container, or IOMMU security boundary.\nC:H - The negative copy length is promoted to a huge unsigned value in skb_copy_bits, producing a multi-gigabyte out-of-bounds read; KASAN confirmed use-after-free with a 4294967295-byte read, enabling arbitrary kernel memory disclosure.\nI:H - The same corrupted length drives skb_copy_bits writes into RDMA target memory (siw_rx_kva/siw_rx_umem) after siw_check_mem is bypassed by negative len, enabling out-of-bounds writes exploitable for memory corruption and potential code execution.\nA:H - KASAN reports use-after-free in skb_copy_bits during normal receive processing, and this class of kernel memory corruption reliably causes oops/panic or exploitable instability under attacker control."
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      "descriptions": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()\n\ndrm_gem_fb_init_with_funcs() computes sub-sampled plane dimensions\nusing plain integer division:\n\n  unsigned int width  = mode_cmd-\u003ewidth  / (i ? info-\u003ehsub : 1);\n  unsigned int height = mode_cmd-\u003eheight / (i ? info-\u003evsub : 1);\n\nHowever, the ioctl-level framebuffer_check() in drm_framebuffer.c uses\ndrm_format_info_plane_width/height() which round up dimensions via\nDIV_ROUND_UP(). This inconsistency corrupts the subsequent GEM object\nsize check for certain pixel format and dimension combinations.\n\nFor example, with NV12 (vsub=2) and a 1-pixel-tall framebuffer the\nGEM size validation path sees height=0 instead of height=1. The\nexpression (height - 1) then wraps to UINT_MAX as an unsigned int,\ncausing min_size to overflow and wrap back to a small value. A tiny\nGEM object therefore passes the size guard, yet when the GPU accesses\nthe chroma plane it will read or write memory beyond the object\u0027s\nbounds.\n\nFix by replacing the open-coded divisions with drm_format_info_plane_width()\nand drm_format_info_plane_height(), which use DIV_ROUND_UP() and match\nthe calculation already used in framebuffer_check()."
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      "metrics": [
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          "cvssV3_1": {
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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              "value": "AV:L - Reached only via the local DRM_IOCTL_MODE_ADDFB2 ioctl on /dev/dri/cardN; there is no network path.\nAC:L - The attacker fully controls pixel format, dimensions, pitch, offset, and GEM object size, so the integer underflow and undersized-object bypass are triggered deterministically.\nPR:L - ADDFB2 carries no DRM_MASTER/root flag, so any local unprivileged user with access to the primary DRM node can create the malformed framebuffer and (as session master on their own VT) drive the OOB access.\nUI:N - No victim interaction is required; the attacker creates and uses the framebuffer entirely on their own.\nS:U - The out-of-bounds access stays within the kernel\u0027s own memory authority with no crossing of a security boundary such as a VM or IOMMU domain.\nC:H - GPU access to the undersized chroma plane reads adjacent memory over an attacker-controlled, potentially large span, exposing kernel/GPU-visible memory contents.\nI:H - The same out-of-bounds chroma access can write past the GEM object, corrupting adjacent memory and providing a controllable write primitive.\nA:H - Out-of-bounds reads/writes of GPU-accessible memory readily cause kernel oops/panic, yielding a denial of service."
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        },
        {
          "url": "https://git.kernel.org/stable/c/3d4c2268bd7243c3780fe32bf24ff876da272acf"
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      "title": "drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()",
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