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CVE-2022-50388 (GCVE-0-2022-50388)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-05-11 19:18
VLAI
Title
nvme: fix multipath crash caused by flush request when blktrace is enabled
Summary
In the Linux kernel, the following vulnerability has been resolved: nvme: fix multipath crash caused by flush request when blktrace is enabled The flush request initialized by blk_kick_flush has NULL bio, and it may be dealt with nvme_end_req during io completion. When blktrace is enabled, nvme_trace_bio_complete with multipath activated trying to access NULL pointer bio from flush request results in the following crash: [ 2517.831677] BUG: kernel NULL pointer dereference, address: 000000000000001a [ 2517.835213] #PF: supervisor read access in kernel mode [ 2517.838724] #PF: error_code(0x0000) - not-present page [ 2517.842222] PGD 7b2d51067 P4D 0 [ 2517.845684] Oops: 0000 [#1] SMP NOPTI [ 2517.849125] CPU: 2 PID: 732 Comm: kworker/2:1H Kdump: loaded Tainted: G S 5.15.67-0.cl9.x86_64 #1 [ 2517.852723] Hardware name: XFUSION 2288H V6/BC13MBSBC, BIOS 1.13 07/27/2022 [ 2517.856358] Workqueue: nvme_tcp_wq nvme_tcp_io_work [nvme_tcp] [ 2517.859993] RIP: 0010:blk_add_trace_bio_complete+0x6/0x30 [ 2517.863628] Code: 1f 44 00 00 48 8b 46 08 31 c9 ba 04 00 10 00 48 8b 80 50 03 00 00 48 8b 78 50 e9 e5 fe ff ff 0f 1f 44 00 00 41 54 49 89 f4 55 <0f> b6 7a 1a 48 89 d5 e8 3e 1c 2b 00 48 89 ee 4c 89 e7 5d 89 c1 ba [ 2517.871269] RSP: 0018:ff7f6a008d9dbcd0 EFLAGS: 00010286 [ 2517.875081] RAX: ff3d5b4be00b1d50 RBX: 0000000002040002 RCX: ff3d5b0a270f2000 [ 2517.878966] RDX: 0000000000000000 RSI: ff3d5b0b021fb9f8 RDI: 0000000000000000 [ 2517.882849] RBP: ff3d5b0b96a6fa00 R08: 0000000000000001 R09: 0000000000000000 [ 2517.886718] R10: 000000000000000c R11: 000000000000000c R12: ff3d5b0b021fb9f8 [ 2517.890575] R13: 0000000002000000 R14: ff3d5b0b021fb1b0 R15: 0000000000000018 [ 2517.894434] FS: 0000000000000000(0000) GS:ff3d5b42bfc80000(0000) knlGS:0000000000000000 [ 2517.898299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2517.902157] CR2: 000000000000001a CR3: 00000004f023e005 CR4: 0000000000771ee0 [ 2517.906053] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2517.909930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2517.913761] PKRU: 55555554 [ 2517.917558] Call Trace: [ 2517.921294] <TASK> [ 2517.924982] nvme_complete_rq+0x1c3/0x1e0 [nvme_core] [ 2517.928715] nvme_tcp_recv_pdu+0x4d7/0x540 [nvme_tcp] [ 2517.932442] nvme_tcp_recv_skb+0x4f/0x240 [nvme_tcp] [ 2517.936137] ? nvme_tcp_recv_pdu+0x540/0x540 [nvme_tcp] [ 2517.939830] tcp_read_sock+0x9c/0x260 [ 2517.943486] nvme_tcp_try_recv+0x65/0xa0 [nvme_tcp] [ 2517.947173] nvme_tcp_io_work+0x64/0x90 [nvme_tcp] [ 2517.950834] process_one_work+0x1e8/0x390 [ 2517.954473] worker_thread+0x53/0x3c0 [ 2517.958069] ? process_one_work+0x390/0x390 [ 2517.961655] kthread+0x10c/0x130 [ 2517.965211] ? set_kthread_struct+0x40/0x40 [ 2517.968760] ret_from_fork+0x1f/0x30 [ 2517.972285] </TASK> To avoid this situation, add a NULL check for req->bio before calling trace_block_bio_complete.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:49 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd , < f13301a69ababa6c2236fb4f0393b7e914e7e1e0 (git)
Affected: 35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd , < 4df413d46960f11c8c105238cfc3f5ff4c95c003 (git)
Affected: 35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd , < fcd2d199486033223e9b2a6a7f9a01dd0327eac3 (git)
Affected: 35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd , < 183c2aaef40a91acbaae45c3824d6cde7bb62b10 (git)
Affected: 35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd , < 3659fb5ac29a5e6102bebe494ac789fd47fb78f4 (git)
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Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.87 , ≤ 5.15.* (semver)
Unaffected: 6.0.19 , ≤ 6.0.* (semver)
Unaffected: 6.1.5 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
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              "content": {
                "id": "CVE-2022-50388",
                "options": [
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                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:49:41.132180Z",
                "version": "2.0.3"
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          "dateUpdated": "2026-01-14T18:53:04.992Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
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    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/host/nvme.h"
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              "versionType": "git"
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.4"
            },
            {
              "lessThan": "5.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.87",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.163",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.87",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.19",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.5",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: fix multipath crash caused by flush request when blktrace is enabled\n\nThe flush request initialized by blk_kick_flush has NULL bio,\nand it may be dealt with nvme_end_req during io completion.\nWhen blktrace is enabled, nvme_trace_bio_complete with multipath\nactivated trying to access NULL pointer bio from flush request\nresults in the following crash:\n\n[ 2517.831677] BUG: kernel NULL pointer dereference, address: 000000000000001a\n[ 2517.835213] #PF: supervisor read access in kernel mode\n[ 2517.838724] #PF: error_code(0x0000) - not-present page\n[ 2517.842222] PGD 7b2d51067 P4D 0\n[ 2517.845684] Oops: 0000 [#1] SMP NOPTI\n[ 2517.849125] CPU: 2 PID: 732 Comm: kworker/2:1H Kdump: loaded Tainted: G S                5.15.67-0.cl9.x86_64 #1\n[ 2517.852723] Hardware name: XFUSION 2288H V6/BC13MBSBC, BIOS 1.13 07/27/2022\n[ 2517.856358] Workqueue: nvme_tcp_wq nvme_tcp_io_work [nvme_tcp]\n[ 2517.859993] RIP: 0010:blk_add_trace_bio_complete+0x6/0x30\n[ 2517.863628] Code: 1f 44 00 00 48 8b 46 08 31 c9 ba 04 00 10 00 48 8b 80 50 03 00 00 48 8b 78 50 e9 e5 fe ff ff 0f 1f 44 00 00 41 54 49 89 f4 55 \u003c0f\u003e b6 7a 1a 48 89 d5 e8 3e 1c 2b 00 48 89 ee 4c 89 e7 5d 89 c1 ba\n[ 2517.871269] RSP: 0018:ff7f6a008d9dbcd0 EFLAGS: 00010286\n[ 2517.875081] RAX: ff3d5b4be00b1d50 RBX: 0000000002040002 RCX: ff3d5b0a270f2000\n[ 2517.878966] RDX: 0000000000000000 RSI: ff3d5b0b021fb9f8 RDI: 0000000000000000\n[ 2517.882849] RBP: ff3d5b0b96a6fa00 R08: 0000000000000001 R09: 0000000000000000\n[ 2517.886718] R10: 000000000000000c R11: 000000000000000c R12: ff3d5b0b021fb9f8\n[ 2517.890575] R13: 0000000002000000 R14: ff3d5b0b021fb1b0 R15: 0000000000000018\n[ 2517.894434] FS:  0000000000000000(0000) GS:ff3d5b42bfc80000(0000) knlGS:0000000000000000\n[ 2517.898299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 2517.902157] CR2: 000000000000001a CR3: 00000004f023e005 CR4: 0000000000771ee0\n[ 2517.906053] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 2517.909930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 2517.913761] PKRU: 55555554\n[ 2517.917558] Call Trace:\n[ 2517.921294]  \u003cTASK\u003e\n[ 2517.924982]  nvme_complete_rq+0x1c3/0x1e0 [nvme_core]\n[ 2517.928715]  nvme_tcp_recv_pdu+0x4d7/0x540 [nvme_tcp]\n[ 2517.932442]  nvme_tcp_recv_skb+0x4f/0x240 [nvme_tcp]\n[ 2517.936137]  ? nvme_tcp_recv_pdu+0x540/0x540 [nvme_tcp]\n[ 2517.939830]  tcp_read_sock+0x9c/0x260\n[ 2517.943486]  nvme_tcp_try_recv+0x65/0xa0 [nvme_tcp]\n[ 2517.947173]  nvme_tcp_io_work+0x64/0x90 [nvme_tcp]\n[ 2517.950834]  process_one_work+0x1e8/0x390\n[ 2517.954473]  worker_thread+0x53/0x3c0\n[ 2517.958069]  ? process_one_work+0x390/0x390\n[ 2517.961655]  kthread+0x10c/0x130\n[ 2517.965211]  ? set_kthread_struct+0x40/0x40\n[ 2517.968760]  ret_from_fork+0x1f/0x30\n[ 2517.972285]  \u003c/TASK\u003e\n\nTo avoid this situation, add a NULL check for req-\u003ebio before\ncalling trace_block_bio_complete."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:18:34.280Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f13301a69ababa6c2236fb4f0393b7e914e7e1e0"
        },
        {
          "url": "https://git.kernel.org/stable/c/4df413d46960f11c8c105238cfc3f5ff4c95c003"
        },
        {
          "url": "https://git.kernel.org/stable/c/fcd2d199486033223e9b2a6a7f9a01dd0327eac3"
        },
        {
          "url": "https://git.kernel.org/stable/c/183c2aaef40a91acbaae45c3824d6cde7bb62b10"
        },
        {
          "url": "https://git.kernel.org/stable/c/3659fb5ac29a5e6102bebe494ac789fd47fb78f4"
        }
      ],
      "title": "nvme: fix multipath crash caused by flush request when blktrace is enabled",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50388",
    "datePublished": "2025-09-18T13:33:08.612Z",
    "dateReserved": "2025-09-17T14:53:06.997Z",
    "dateUpdated": "2026-05-11T19:18:34.280Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-50388",
      "date": "2026-09-15",
      "epss": "0.00155",
      "percentile": "0.0503"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50388\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-18T14:15:37.723\",\"lastModified\":\"2026-06-17T05:23:24.610\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnvme: fix multipath crash caused by flush request when blktrace is enabled\\n\\nThe flush request initialized by blk_kick_flush has NULL bio,\\nand it may be dealt with nvme_end_req during io completion.\\nWhen blktrace is enabled, nvme_trace_bio_complete with multipath\\nactivated trying to access NULL pointer bio from flush request\\nresults in the following crash:\\n\\n[ 2517.831677] BUG: kernel NULL pointer dereference, address: 000000000000001a\\n[ 2517.835213] #PF: supervisor read access in kernel mode\\n[ 2517.838724] #PF: error_code(0x0000) - not-present page\\n[ 2517.842222] PGD 7b2d51067 P4D 0\\n[ 2517.845684] Oops: 0000 [#1] SMP NOPTI\\n[ 2517.849125] CPU: 2 PID: 732 Comm: kworker/2:1H Kdump: loaded Tainted: G S                5.15.67-0.cl9.x86_64 #1\\n[ 2517.852723] Hardware name: XFUSION 2288H V6/BC13MBSBC, BIOS 1.13 07/27/2022\\n[ 2517.856358] Workqueue: nvme_tcp_wq nvme_tcp_io_work [nvme_tcp]\\n[ 2517.859993] RIP: 0010:blk_add_trace_bio_complete+0x6/0x30\\n[ 2517.863628] Code: 1f 44 00 00 48 8b 46 08 31 c9 ba 04 00 10 00 48 8b 80 50 03 00 00 48 8b 78 50 e9 e5 fe ff ff 0f 1f 44 00 00 41 54 49 89 f4 55 \u003c0f\u003e b6 7a 1a 48 89 d5 e8 3e 1c 2b 00 48 89 ee 4c 89 e7 5d 89 c1 ba\\n[ 2517.871269] RSP: 0018:ff7f6a008d9dbcd0 EFLAGS: 00010286\\n[ 2517.875081] RAX: ff3d5b4be00b1d50 RBX: 0000000002040002 RCX: ff3d5b0a270f2000\\n[ 2517.878966] RDX: 0000000000000000 RSI: ff3d5b0b021fb9f8 RDI: 0000000000000000\\n[ 2517.882849] RBP: ff3d5b0b96a6fa00 R08: 0000000000000001 R09: 0000000000000000\\n[ 2517.886718] R10: 000000000000000c R11: 000000000000000c R12: ff3d5b0b021fb9f8\\n[ 2517.890575] R13: 0000000002000000 R14: ff3d5b0b021fb1b0 R15: 0000000000000018\\n[ 2517.894434] FS:  0000000000000000(0000) GS:ff3d5b42bfc80000(0000) knlGS:0000000000000000\\n[ 2517.898299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[ 2517.902157] CR2: 000000000000001a CR3: 00000004f023e005 CR4: 0000000000771ee0\\n[ 2517.906053] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n[ 2517.909930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n[ 2517.913761] PKRU: 55555554\\n[ 2517.917558] Call Trace:\\n[ 2517.921294]  \u003cTASK\u003e\\n[ 2517.924982]  nvme_complete_rq+0x1c3/0x1e0 [nvme_core]\\n[ 2517.928715]  nvme_tcp_recv_pdu+0x4d7/0x540 [nvme_tcp]\\n[ 2517.932442]  nvme_tcp_recv_skb+0x4f/0x240 [nvme_tcp]\\n[ 2517.936137]  ? nvme_tcp_recv_pdu+0x540/0x540 [nvme_tcp]\\n[ 2517.939830]  tcp_read_sock+0x9c/0x260\\n[ 2517.943486]  nvme_tcp_try_recv+0x65/0xa0 [nvme_tcp]\\n[ 2517.947173]  nvme_tcp_io_work+0x64/0x90 [nvme_tcp]\\n[ 2517.950834]  process_one_work+0x1e8/0x390\\n[ 2517.954473]  worker_thread+0x53/0x3c0\\n[ 2517.958069]  ? process_one_work+0x390/0x390\\n[ 2517.961655]  kthread+0x10c/0x130\\n[ 2517.965211]  ? set_kthread_struct+0x40/0x40\\n[ 2517.968760]  ret_from_fork+0x1f/0x30\\n[ 2517.972285]  \u003c/TASK\u003e\\n\\nTo avoid this situation, add a NULL check for req-\u003ebio before\\ncalling trace_block_bio_complete.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/nvme/host/nvme.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\",\"lessThan\":\"f13301a69ababa6c2236fb4f0393b7e914e7e1e0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\",\"lessThan\":\"4df413d46960f11c8c105238cfc3f5ff4c95c003\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\",\"lessThan\":\"fcd2d199486033223e9b2a6a7f9a01dd0327eac3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\",\"lessThan\":\"183c2aaef40a91acbaae45c3824d6cde7bb62b10\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\",\"lessThan\":\"3659fb5ac29a5e6102bebe494ac789fd47fb78f4\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/nvme/host/nvme.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.4\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.4\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.163\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.87\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.0.19\",\"lessThanOrEqual\":\"6.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.5\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"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},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-01-14T18:49:41.132180Z\",\"id\":\"CVE-2022-50388\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.4\",\"versionEndExcluding\":\"5.10.163\",\"matchCriteriaId\":\"F56DD7B2-AA89-4C12-B73E-25994038AC69\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.87\",\"matchCriteriaId\":\"7B9E5B1C-CD46-4790-9500-615863850401\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.0.19\",\"matchCriteriaId\":\"B70FF53F-1F99-4483-9376-CBA1A4EE0351\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1\",\"versionEndExcluding\":\"6.1.5\",\"matchCriteriaId\":\"8C1E7766-4310-43F9-BAC4-3763A36C043A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"FF501633-2F44-4913-A8EE-B021929F49F6\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/183c2aaef40a91acbaae45c3824d6cde7bb62b10\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3659fb5ac29a5e6102bebe494ac789fd47fb78f4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4df413d46960f11c8c105238cfc3f5ff4c95c003\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f13301a69ababa6c2236fb4f0393b7e914e7e1e0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fcd2d199486033223e9b2a6a7f9a01dd0327eac3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:49:12+00:00",
      "cve": "CVE-2022-50388",
      "id": "CVE-2022-50388",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "321",
      "product_status:known_affected": "38",
      "product_status:known_not_affected": "118",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nvme: fix multipath crash caused by flush request when blktrace is enabled",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50388.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-31T01:24:10Z",
      "cve": "CVE-2022-50388",
      "id": "CVE-2022-50388",
      "initial_release_date": "2025-09-22T23:42:25Z",
      "product_status:known_affected": "344",
      "product_status:known_not_affected": "352",
      "product_status:recommended": "340",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50388",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50388.json",
      "version": "45"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-50388\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:49:41.132180Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-476\", \"description\": \"CWE-476 NULL Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:49:37.080Z\"}}], \"cna\": {\"title\": \"nvme: fix multipath crash caused by flush request when blktrace is enabled\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\", \"lessThan\": \"f13301a69ababa6c2236fb4f0393b7e914e7e1e0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\", \"lessThan\": \"4df413d46960f11c8c105238cfc3f5ff4c95c003\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\", \"lessThan\": \"fcd2d199486033223e9b2a6a7f9a01dd0327eac3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\", \"lessThan\": \"183c2aaef40a91acbaae45c3824d6cde7bb62b10\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"35fe0d12c8a3d5e45f297562732ddc9ba9dc58dd\", \"lessThan\": \"3659fb5ac29a5e6102bebe494ac789fd47fb78f4\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/nvme/host/nvme.h\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.4\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.4\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.163\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.87\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.19\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/nvme/host/nvme.h\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/f13301a69ababa6c2236fb4f0393b7e914e7e1e0\"}, {\"url\": \"https://git.kernel.org/stable/c/4df413d46960f11c8c105238cfc3f5ff4c95c003\"}, {\"url\": \"https://git.kernel.org/stable/c/fcd2d199486033223e9b2a6a7f9a01dd0327eac3\"}, {\"url\": \"https://git.kernel.org/stable/c/183c2aaef40a91acbaae45c3824d6cde7bb62b10\"}, {\"url\": \"https://git.kernel.org/stable/c/3659fb5ac29a5e6102bebe494ac789fd47fb78f4\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnvme: fix multipath crash caused by flush request when blktrace is enabled\\n\\nThe flush request initialized by blk_kick_flush has NULL bio,\\nand it may be dealt with nvme_end_req during io completion.\\nWhen blktrace is enabled, nvme_trace_bio_complete with multipath\\nactivated trying to access NULL pointer bio from flush request\\nresults in the following crash:\\n\\n[ 2517.831677] BUG: kernel NULL pointer dereference, address: 000000000000001a\\n[ 2517.835213] #PF: supervisor read access in kernel mode\\n[ 2517.838724] #PF: error_code(0x0000) - not-present page\\n[ 2517.842222] PGD 7b2d51067 P4D 0\\n[ 2517.845684] Oops: 0000 [#1] SMP NOPTI\\n[ 2517.849125] CPU: 2 PID: 732 Comm: kworker/2:1H Kdump: loaded Tainted: G S                5.15.67-0.cl9.x86_64 #1\\n[ 2517.852723] Hardware name: XFUSION 2288H V6/BC13MBSBC, BIOS 1.13 07/27/2022\\n[ 2517.856358] Workqueue: nvme_tcp_wq nvme_tcp_io_work [nvme_tcp]\\n[ 2517.859993] RIP: 0010:blk_add_trace_bio_complete+0x6/0x30\\n[ 2517.863628] Code: 1f 44 00 00 48 8b 46 08 31 c9 ba 04 00 10 00 48 8b 80 50 03 00 00 48 8b 78 50 e9 e5 fe ff ff 0f 1f 44 00 00 41 54 49 89 f4 55 \u003c0f\u003e b6 7a 1a 48 89 d5 e8 3e 1c 2b 00 48 89 ee 4c 89 e7 5d 89 c1 ba\\n[ 2517.871269] RSP: 0018:ff7f6a008d9dbcd0 EFLAGS: 00010286\\n[ 2517.875081] RAX: ff3d5b4be00b1d50 RBX: 0000000002040002 RCX: ff3d5b0a270f2000\\n[ 2517.878966] RDX: 0000000000000000 RSI: ff3d5b0b021fb9f8 RDI: 0000000000000000\\n[ 2517.882849] RBP: ff3d5b0b96a6fa00 R08: 0000000000000001 R09: 0000000000000000\\n[ 2517.886718] R10: 000000000000000c R11: 000000000000000c R12: ff3d5b0b021fb9f8\\n[ 2517.890575] R13: 0000000002000000 R14: ff3d5b0b021fb1b0 R15: 0000000000000018\\n[ 2517.894434] FS:  0000000000000000(0000) GS:ff3d5b42bfc80000(0000) knlGS:0000000000000000\\n[ 2517.898299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[ 2517.902157] CR2: 000000000000001a CR3: 00000004f023e005 CR4: 0000000000771ee0\\n[ 2517.906053] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n[ 2517.909930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n[ 2517.913761] PKRU: 55555554\\n[ 2517.917558] Call Trace:\\n[ 2517.921294]  \u003cTASK\u003e\\n[ 2517.924982]  nvme_complete_rq+0x1c3/0x1e0 [nvme_core]\\n[ 2517.928715]  nvme_tcp_recv_pdu+0x4d7/0x540 [nvme_tcp]\\n[ 2517.932442]  nvme_tcp_recv_skb+0x4f/0x240 [nvme_tcp]\\n[ 2517.936137]  ? nvme_tcp_recv_pdu+0x540/0x540 [nvme_tcp]\\n[ 2517.939830]  tcp_read_sock+0x9c/0x260\\n[ 2517.943486]  nvme_tcp_try_recv+0x65/0xa0 [nvme_tcp]\\n[ 2517.947173]  nvme_tcp_io_work+0x64/0x90 [nvme_tcp]\\n[ 2517.950834]  process_one_work+0x1e8/0x390\\n[ 2517.954473]  worker_thread+0x53/0x3c0\\n[ 2517.958069]  ? process_one_work+0x390/0x390\\n[ 2517.961655]  kthread+0x10c/0x130\\n[ 2517.965211]  ? set_kthread_struct+0x40/0x40\\n[ 2517.968760]  ret_from_fork+0x1f/0x30\\n[ 2517.972285]  \u003c/TASK\u003e\\n\\nTo avoid this situation, add a NULL check for req-\u003ebio before\\ncalling trace_block_bio_complete.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.163\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.87\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.19\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.5\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2\", \"versionStartIncluding\": \"5.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T19:18:34.280Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-50388\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T19:18:34.280Z\", \"dateReserved\": \"2025-09-17T14:53:06.997Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-18T13:33:08.612Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.