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CVE-2022-50752 (GCVE-0-2022-50752)

Vulnerability from cvelistv5 – Published: 2025-12-24 13:05 – Updated: 2026-08-05 08:59
VLAI
Title
md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk()
Summary
In the Linux kernel, the following vulnerability has been resolved: md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk() When running chunk-sized reads on disks with badblocks duplicate bio free/puts are observed: ============================================================================= BUG bio-200 (Not tainted): Object already free ----------------------------------------------------------------------------- Allocated in mempool_alloc_slab+0x17/0x20 age=3 cpu=2 pid=7504 __slab_alloc.constprop.0+0x5a/0xb0 kmem_cache_alloc+0x31e/0x330 mempool_alloc_slab+0x17/0x20 mempool_alloc+0x100/0x2b0 bio_alloc_bioset+0x181/0x460 do_mpage_readpage+0x776/0xd00 mpage_readahead+0x166/0x320 blkdev_readahead+0x15/0x20 read_pages+0x13f/0x5f0 page_cache_ra_unbounded+0x18d/0x220 force_page_cache_ra+0x181/0x1c0 page_cache_sync_ra+0x65/0xb0 filemap_get_pages+0x1df/0xaf0 filemap_read+0x1e1/0x700 blkdev_read_iter+0x1e5/0x330 vfs_read+0x42a/0x570 Freed in mempool_free_slab+0x17/0x20 age=3 cpu=2 pid=7504 kmem_cache_free+0x46d/0x490 mempool_free_slab+0x17/0x20 mempool_free+0x66/0x190 bio_free+0x78/0x90 bio_put+0x100/0x1a0 raid5_make_request+0x2259/0x2450 md_handle_request+0x402/0x600 md_submit_bio+0xd9/0x120 __submit_bio+0x11f/0x1b0 submit_bio_noacct_nocheck+0x204/0x480 submit_bio_noacct+0x32e/0xc70 submit_bio+0x98/0x1a0 mpage_readahead+0x250/0x320 blkdev_readahead+0x15/0x20 read_pages+0x13f/0x5f0 page_cache_ra_unbounded+0x18d/0x220 Slab 0xffffea000481b600 objects=21 used=0 fp=0xffff8881206d8940 flags=0x17ffffc0010201(locked|slab|head|node=0|zone=2|lastcpupid=0x1fffff) CPU: 0 PID: 34525 Comm: kworker/u24:2 Not tainted 6.0.0-rc2-localyes-265166-gf11c5343fa3f #143 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Workqueue: raid5wq raid5_do_work Call Trace: <TASK> dump_stack_lvl+0x5a/0x78 dump_stack+0x10/0x16 print_trailer+0x158/0x165 object_err+0x35/0x50 free_debug_processing.cold+0xb7/0xbe __slab_free+0x1ae/0x330 kmem_cache_free+0x46d/0x490 mempool_free_slab+0x17/0x20 mempool_free+0x66/0x190 bio_free+0x78/0x90 bio_put+0x100/0x1a0 mpage_end_io+0x36/0x150 bio_endio+0x2fd/0x360 md_end_io_acct+0x7e/0x90 bio_endio+0x2fd/0x360 handle_failed_stripe+0x960/0xb80 handle_stripe+0x1348/0x3760 handle_active_stripes.constprop.0+0x72a/0xaf0 raid5_do_work+0x177/0x330 process_one_work+0x616/0xb20 worker_thread+0x2bd/0x6f0 kthread+0x179/0x1b0 ret_from_fork+0x22/0x30 </TASK> The double free is caused by an unnecessary bio_put() in the if(is_badblock(...)) error path in raid5_read_one_chunk(). The error path was moved ahead of bio_alloc_clone() in c82aa1b76787c ("md/raid5: move checking badblock before clone bio in raid5_read_one_chunk"). The previous code checked and freed align_bio which required a bio_put. After the move that is no longer needed as raid_bio is returned to the control of the common io path which performs its own endio resulting in a double free on bad device blocks.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c82aa1b76787c34fd02374e519b6f52cdeb2f54b , < 7a37c58ee72e1fadd22c4ee990cb74c2ca2280e7 (git)
Affected: c82aa1b76787c34fd02374e519b6f52cdeb2f54b , < c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdf (git)
Affected: c82aa1b76787c34fd02374e519b6f52cdeb2f54b , < 21a9c7354aa59e97e26ece5f0a609c8bfa43020d (git)
Affected: c82aa1b76787c34fd02374e519b6f52cdeb2f54b , < c66a6f41e09ad386fd2cce22b9cded837bbbc704 (git)
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Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.75 , ≤ 5.15.* (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/raid5.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "c82aa1b76787c34fd02374e519b6f52cdeb2f54b",
              "versionType": "git"
            },
            {
              "lessThan": "c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdf",
              "status": "affected",
              "version": "c82aa1b76787c34fd02374e519b6f52cdeb2f54b",
              "versionType": "git"
            },
            {
              "lessThan": "21a9c7354aa59e97e26ece5f0a609c8bfa43020d",
              "status": "affected",
              "version": "c82aa1b76787c34fd02374e519b6f52cdeb2f54b",
              "versionType": "git"
            },
            {
              "lessThan": "c66a6f41e09ad386fd2cce22b9cded837bbbc704",
              "status": "affected",
              "version": "c82aa1b76787c34fd02374e519b6f52cdeb2f54b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/raid5.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.75",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.17",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.3",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk()\n\nWhen running chunk-sized reads on disks with badblocks duplicate bio\nfree/puts are observed:\n\n   =============================================================================\n   BUG bio-200 (Not tainted): Object already free\n   -----------------------------------------------------------------------------\n   Allocated in mempool_alloc_slab+0x17/0x20 age=3 cpu=2 pid=7504\n    __slab_alloc.constprop.0+0x5a/0xb0\n    kmem_cache_alloc+0x31e/0x330\n    mempool_alloc_slab+0x17/0x20\n    mempool_alloc+0x100/0x2b0\n    bio_alloc_bioset+0x181/0x460\n    do_mpage_readpage+0x776/0xd00\n    mpage_readahead+0x166/0x320\n    blkdev_readahead+0x15/0x20\n    read_pages+0x13f/0x5f0\n    page_cache_ra_unbounded+0x18d/0x220\n    force_page_cache_ra+0x181/0x1c0\n    page_cache_sync_ra+0x65/0xb0\n    filemap_get_pages+0x1df/0xaf0\n    filemap_read+0x1e1/0x700\n    blkdev_read_iter+0x1e5/0x330\n    vfs_read+0x42a/0x570\n   Freed in mempool_free_slab+0x17/0x20 age=3 cpu=2 pid=7504\n    kmem_cache_free+0x46d/0x490\n    mempool_free_slab+0x17/0x20\n    mempool_free+0x66/0x190\n    bio_free+0x78/0x90\n    bio_put+0x100/0x1a0\n    raid5_make_request+0x2259/0x2450\n    md_handle_request+0x402/0x600\n    md_submit_bio+0xd9/0x120\n    __submit_bio+0x11f/0x1b0\n    submit_bio_noacct_nocheck+0x204/0x480\n    submit_bio_noacct+0x32e/0xc70\n    submit_bio+0x98/0x1a0\n    mpage_readahead+0x250/0x320\n    blkdev_readahead+0x15/0x20\n    read_pages+0x13f/0x5f0\n    page_cache_ra_unbounded+0x18d/0x220\n   Slab 0xffffea000481b600 objects=21 used=0 fp=0xffff8881206d8940 flags=0x17ffffc0010201(locked|slab|head|node=0|zone=2|lastcpupid=0x1fffff)\n   CPU: 0 PID: 34525 Comm: kworker/u24:2 Not tainted 6.0.0-rc2-localyes-265166-gf11c5343fa3f #143\n   Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-1ubuntu1.1 04/01/2014\n   Workqueue: raid5wq raid5_do_work\n   Call Trace:\n    \u003cTASK\u003e\n    dump_stack_lvl+0x5a/0x78\n    dump_stack+0x10/0x16\n    print_trailer+0x158/0x165\n    object_err+0x35/0x50\n    free_debug_processing.cold+0xb7/0xbe\n    __slab_free+0x1ae/0x330\n    kmem_cache_free+0x46d/0x490\n    mempool_free_slab+0x17/0x20\n    mempool_free+0x66/0x190\n    bio_free+0x78/0x90\n    bio_put+0x100/0x1a0\n    mpage_end_io+0x36/0x150\n    bio_endio+0x2fd/0x360\n    md_end_io_acct+0x7e/0x90\n    bio_endio+0x2fd/0x360\n    handle_failed_stripe+0x960/0xb80\n    handle_stripe+0x1348/0x3760\n    handle_active_stripes.constprop.0+0x72a/0xaf0\n    raid5_do_work+0x177/0x330\n    process_one_work+0x616/0xb20\n    worker_thread+0x2bd/0x6f0\n    kthread+0x179/0x1b0\n    ret_from_fork+0x22/0x30\n    \u003c/TASK\u003e\n\nThe double free is caused by an unnecessary bio_put() in the\nif(is_badblock(...)) error path in raid5_read_one_chunk().\n\nThe error path was moved ahead of bio_alloc_clone() in c82aa1b76787c\n(\"md/raid5: move checking badblock before clone bio in\nraid5_read_one_chunk\"). The previous code checked and freed align_bio\nwhich required a bio_put. After the move that is no longer needed as\nraid_bio is returned to the control of the common io path which\nperforms its own endio resulting in a double free on bad device blocks."
        }
      ],
      "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 vulnerable path is reached through local block I/O to an md RAID5/6 device (raw /dev/md* or filesystem reads backed by the array) via md_submit_bio \u2192 raid5_make_request \u2192 raid5_read_one_chunk; md/raid5 is not itself a network protocol handler.\nAC:L - Once a non-degraded RAID5/6 array has badblocks on the target chunk, a chunk-aligned read reliably hits the is_badblock() path and the erroneous bio_put(); the attacker can discover badblock LBAs from world-readable sysfs and issue the reads directly, with no attacker-uncontrollable race.\nPR:L - Array creation and bad_blocks sysfs writes require CAP_SYS_ADMIN, but exploitation only requires issuing reads to an already-affected array (e.g., reading files on a RAID-backed filesystem or an accessible md block device), which an unprivileged local user can do.\nUI:N - The attacker triggers the bug by performing their own reads against the affected md device or filesystem; no separate victim action is required.\nS:U - This is standard host-kernel heap corruption within the same security authority as the md/block layer; it does not cross a VM, IOMMU, or other separate boundary.\nC:H - The bug frees the original bio then continues using it in the stripe path, which is a kernel slab use-after-free/double-free; per scoring guidance, UAF enables high-impact information disclosure primitives.\nI:H - Double-free of a bio slab object enables heap reuse and memory corruption suitable for control-flow hijacking or arbitrary write primitives; UAF/double-free warrants High integrity impact.\nA:H - The reported failure is a kernel slab \u0027Object already free\u0027 bug leading to oops/panic on the second bio_put during handle_failed_stripe completion; any such crash is High availability impact."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:59:39.128Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7a37c58ee72e1fadd22c4ee990cb74c2ca2280e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdf"
        },
        {
          "url": "https://git.kernel.org/stable/c/21a9c7354aa59e97e26ece5f0a609c8bfa43020d"
        },
        {
          "url": "https://git.kernel.org/stable/c/c66a6f41e09ad386fd2cce22b9cded837bbbc704"
        }
      ],
      "title": "md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50752",
    "datePublished": "2025-12-24T13:05:46.881Z",
    "dateReserved": "2025-12-24T13:02:21.544Z",
    "dateUpdated": "2026-08-05T08:59:39.128Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-50752",
      "date": "2026-09-16",
      "epss": "0.00191",
      "percentile": "0.09035"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50752\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-24T13:16:01.930\",\"lastModified\":\"2026-08-04T10:18:23.233\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmd/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk()\\n\\nWhen running chunk-sized reads on disks with badblocks duplicate bio\\nfree/puts are observed:\\n\\n   =============================================================================\\n   BUG bio-200 (Not tainted): Object already free\\n   -----------------------------------------------------------------------------\\n   Allocated in mempool_alloc_slab+0x17/0x20 age=3 cpu=2 pid=7504\\n    __slab_alloc.constprop.0+0x5a/0xb0\\n    kmem_cache_alloc+0x31e/0x330\\n    mempool_alloc_slab+0x17/0x20\\n    mempool_alloc+0x100/0x2b0\\n    bio_alloc_bioset+0x181/0x460\\n    do_mpage_readpage+0x776/0xd00\\n    mpage_readahead+0x166/0x320\\n    blkdev_readahead+0x15/0x20\\n    read_pages+0x13f/0x5f0\\n    page_cache_ra_unbounded+0x18d/0x220\\n    force_page_cache_ra+0x181/0x1c0\\n    page_cache_sync_ra+0x65/0xb0\\n    filemap_get_pages+0x1df/0xaf0\\n    filemap_read+0x1e1/0x700\\n    blkdev_read_iter+0x1e5/0x330\\n    vfs_read+0x42a/0x570\\n   Freed in mempool_free_slab+0x17/0x20 age=3 cpu=2 pid=7504\\n    kmem_cache_free+0x46d/0x490\\n    mempool_free_slab+0x17/0x20\\n    mempool_free+0x66/0x190\\n    bio_free+0x78/0x90\\n    bio_put+0x100/0x1a0\\n    raid5_make_request+0x2259/0x2450\\n    md_handle_request+0x402/0x600\\n    md_submit_bio+0xd9/0x120\\n    __submit_bio+0x11f/0x1b0\\n    submit_bio_noacct_nocheck+0x204/0x480\\n    submit_bio_noacct+0x32e/0xc70\\n    submit_bio+0x98/0x1a0\\n    mpage_readahead+0x250/0x320\\n    blkdev_readahead+0x15/0x20\\n    read_pages+0x13f/0x5f0\\n    page_cache_ra_unbounded+0x18d/0x220\\n   Slab 0xffffea000481b600 objects=21 used=0 fp=0xffff8881206d8940 flags=0x17ffffc0010201(locked|slab|head|node=0|zone=2|lastcpupid=0x1fffff)\\n   CPU: 0 PID: 34525 Comm: kworker/u24:2 Not tainted 6.0.0-rc2-localyes-265166-gf11c5343fa3f #143\\n   Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-1ubuntu1.1 04/01/2014\\n   Workqueue: raid5wq raid5_do_work\\n   Call Trace:\\n    \u003cTASK\u003e\\n    dump_stack_lvl+0x5a/0x78\\n    dump_stack+0x10/0x16\\n    print_trailer+0x158/0x165\\n    object_err+0x35/0x50\\n    free_debug_processing.cold+0xb7/0xbe\\n    __slab_free+0x1ae/0x330\\n    kmem_cache_free+0x46d/0x490\\n    mempool_free_slab+0x17/0x20\\n    mempool_free+0x66/0x190\\n    bio_free+0x78/0x90\\n    bio_put+0x100/0x1a0\\n    mpage_end_io+0x36/0x150\\n    bio_endio+0x2fd/0x360\\n    md_end_io_acct+0x7e/0x90\\n    bio_endio+0x2fd/0x360\\n    handle_failed_stripe+0x960/0xb80\\n    handle_stripe+0x1348/0x3760\\n    handle_active_stripes.constprop.0+0x72a/0xaf0\\n    raid5_do_work+0x177/0x330\\n    process_one_work+0x616/0xb20\\n    worker_thread+0x2bd/0x6f0\\n    kthread+0x179/0x1b0\\n    ret_from_fork+0x22/0x30\\n    \u003c/TASK\u003e\\n\\nThe double free is caused by an unnecessary bio_put() in the\\nif(is_badblock(...)) error path in raid5_read_one_chunk().\\n\\nThe error path was moved ahead of bio_alloc_clone() in c82aa1b76787c\\n(\\\"md/raid5: move checking badblock before clone bio in\\nraid5_read_one_chunk\\\"). The previous code checked and freed align_bio\\nwhich required a bio_put. After the move that is no longer needed as\\nraid_bio is returned to the control of the common io path which\\nperforms its own endio resulting in a double free on bad device blocks.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/md/raid5.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"c82aa1b76787c34fd02374e519b6f52cdeb2f54b\",\"lessThan\":\"7a37c58ee72e1fadd22c4ee990cb74c2ca2280e7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c82aa1b76787c34fd02374e519b6f52cdeb2f54b\",\"lessThan\":\"c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdf\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c82aa1b76787c34fd02374e519b6f52cdeb2f54b\",\"lessThan\":\"21a9c7354aa59e97e26ece5f0a609c8bfa43020d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c82aa1b76787c34fd02374e519b6f52cdeb2f54b\",\"lessThan\":\"c66a6f41e09ad386fd2cce22b9cded837bbbc704\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/md/raid5.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.14\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.14\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.75\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.19.17\",\"lessThanOrEqual\":\"5.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.0.3\",\"lessThanOrEqual\":\"6.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/21a9c7354aa59e97e26ece5f0a609c8bfa43020d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7a37c58ee72e1fadd22c4ee990cb74c2ca2280e7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c0fd5d4d8fd7b1a50306d7a23c720cf808f41fdf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c66a6f41e09ad386fd2cce22b9cded837bbbc704\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-04T22:58:35+00:00",
      "cve": "CVE-2022-50752",
      "id": "CVE-2022-50752",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "321",
      "product_status:known_affected": "52",
      "product_status:known_not_affected": "104",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: md/raid5: Remove unnecessary bio_put() in raid5_read_one_chunk()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50752.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-03T16:56:20Z",
      "cve": "CVE-2022-50752",
      "id": "CVE-2022-50752",
      "initial_release_date": "2025-12-25T01:04:11Z",
      "product_status:known_affected": "354",
      "product_status:known_not_affected": "432",
      "product_status:recommended": "243",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50752",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50752.json",
      "version": "26"
    }
  }
}



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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.

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Detection rules are retrieved from Rulezet.


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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.