CVE-2024-48875 (GCVE-0-2024-48875)

Vulnerability from cvelistv5 – Published: 2025-01-11 12:25 – Updated: 2026-05-11 20:40
VLAI
Title
btrfs: don't take dev_replace rwsem on task already holding it
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: don't take dev_replace rwsem on task already holding it Running fstests btrfs/011 with MKFS_OPTIONS="-O rst" to force the usage of the RAID stripe-tree, we get the following splat from lockdep: BTRFS info (device sdd): dev_replace from /dev/sdd (devid 1) to /dev/sdb started ============================================ WARNING: possible recursive locking detected 6.11.0-rc3-btrfs-for-next #599 Not tainted -------------------------------------------- btrfs/2326 is trying to acquire lock: ffff88810f215c98 (&fs_info->dev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250 but task is already holding lock: ffff88810f215c98 (&fs_info->dev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&fs_info->dev_replace.rwsem); lock(&fs_info->dev_replace.rwsem); *** DEADLOCK *** May be due to missing lock nesting notation 1 lock held by btrfs/2326: #0: ffff88810f215c98 (&fs_info->dev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250 stack backtrace: CPU: 1 UID: 0 PID: 2326 Comm: btrfs Not tainted 6.11.0-rc3-btrfs-for-next #599 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 Call Trace: <TASK> dump_stack_lvl+0x5b/0x80 __lock_acquire+0x2798/0x69d0 ? __pfx___lock_acquire+0x10/0x10 ? __pfx___lock_acquire+0x10/0x10 lock_acquire+0x19d/0x4a0 ? btrfs_map_block+0x39f/0x2250 ? __pfx_lock_acquire+0x10/0x10 ? find_held_lock+0x2d/0x110 ? lock_is_held_type+0x8f/0x100 down_read+0x8e/0x440 ? btrfs_map_block+0x39f/0x2250 ? __pfx_down_read+0x10/0x10 ? do_raw_read_unlock+0x44/0x70 ? _raw_read_unlock+0x23/0x40 btrfs_map_block+0x39f/0x2250 ? btrfs_dev_replace_by_ioctl+0xd69/0x1d00 ? btrfs_bio_counter_inc_blocked+0xd9/0x2e0 ? __kasan_slab_alloc+0x6e/0x70 ? __pfx_btrfs_map_block+0x10/0x10 ? __pfx_btrfs_bio_counter_inc_blocked+0x10/0x10 ? kmem_cache_alloc_noprof+0x1f2/0x300 ? mempool_alloc_noprof+0xed/0x2b0 btrfs_submit_chunk+0x28d/0x17e0 ? __pfx_btrfs_submit_chunk+0x10/0x10 ? bvec_alloc+0xd7/0x1b0 ? bio_add_folio+0x171/0x270 ? __pfx_bio_add_folio+0x10/0x10 ? __kasan_check_read+0x20/0x20 btrfs_submit_bio+0x37/0x80 read_extent_buffer_pages+0x3df/0x6c0 btrfs_read_extent_buffer+0x13e/0x5f0 read_tree_block+0x81/0xe0 read_block_for_search+0x4bd/0x7a0 ? __pfx_read_block_for_search+0x10/0x10 btrfs_search_slot+0x78d/0x2720 ? __pfx_btrfs_search_slot+0x10/0x10 ? lock_is_held_type+0x8f/0x100 ? kasan_save_track+0x14/0x30 ? __kasan_slab_alloc+0x6e/0x70 ? kmem_cache_alloc_noprof+0x1f2/0x300 btrfs_get_raid_extent_offset+0x181/0x820 ? __pfx_lock_acquire+0x10/0x10 ? __pfx_btrfs_get_raid_extent_offset+0x10/0x10 ? down_read+0x194/0x440 ? __pfx_down_read+0x10/0x10 ? do_raw_read_unlock+0x44/0x70 ? _raw_read_unlock+0x23/0x40 btrfs_map_block+0x5b5/0x2250 ? __pfx_btrfs_map_block+0x10/0x10 scrub_submit_initial_read+0x8fe/0x11b0 ? __pfx_scrub_submit_initial_read+0x10/0x10 submit_initial_group_read+0x161/0x3a0 ? lock_release+0x20e/0x710 ? __pfx_submit_initial_group_read+0x10/0x10 ? __pfx_lock_release+0x10/0x10 scrub_simple_mirror.isra.0+0x3eb/0x580 scrub_stripe+0xe4d/0x1440 ? lock_release+0x20e/0x710 ? __pfx_scrub_stripe+0x10/0x10 ? __pfx_lock_release+0x10/0x10 ? do_raw_read_unlock+0x44/0x70 ? _raw_read_unlock+0x23/0x40 scrub_chunk+0x257/0x4a0 scrub_enumerate_chunks+0x64c/0xf70 ? __mutex_unlock_slowpath+0x147/0x5f0 ? __pfx_scrub_enumerate_chunks+0x10/0x10 ? bit_wait_timeout+0xb0/0x170 ? __up_read+0x189/0x700 ? scrub_workers_get+0x231/0x300 ? up_write+0x490/0x4f0 btrfs_scrub_dev+0x52e/0xcd0 ? create_pending_snapshots+0x230/0x250 ? __pfx_btrfs_scrub_dev+0x10/0x10 btrfs_dev_replace_by_ioctl+0xd69/0x1d00 ? lock_acquire+0x19d/0x4a0 ? __pfx_btrfs_dev_replace_by_ioctl+0x10/0x10 ? ---truncated---
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 (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 10e27980f2ff66ba0c6da55f33b4814d5bc86573 , < a2e99dcd7aafa9d474f7d9b0740b8f93c4e156c2 (git)
Affected: 10e27980f2ff66ba0c6da55f33b4814d5bc86573 , < 8cca35cb29f81eba3e96ec44dad8696c8a2f9138 (git)
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Linux Linux Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 6.12.5 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-48875",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:55:40.762435Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-667",
                "description": "CWE-667 Improper Locking",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:57:22.119Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/dev-replace.c",
            "fs/btrfs/fs.h",
            "fs/btrfs/volumes.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a2e99dcd7aafa9d474f7d9b0740b8f93c4e156c2",
              "status": "affected",
              "version": "10e27980f2ff66ba0c6da55f33b4814d5bc86573",
              "versionType": "git"
            },
            {
              "lessThan": "8cca35cb29f81eba3e96ec44dad8696c8a2f9138",
              "status": "affected",
              "version": "10e27980f2ff66ba0c6da55f33b4814d5bc86573",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/dev-replace.c",
            "fs/btrfs/fs.h",
            "fs/btrfs/volumes.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.5",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: don\u0027t take dev_replace rwsem on task already holding it\n\nRunning fstests btrfs/011 with MKFS_OPTIONS=\"-O rst\" to force the usage of\nthe RAID stripe-tree, we get the following splat from lockdep:\n\n BTRFS info (device sdd): dev_replace from /dev/sdd (devid 1) to /dev/sdb started\n\n ============================================\n WARNING: possible recursive locking detected\n 6.11.0-rc3-btrfs-for-next #599 Not tainted\n --------------------------------------------\n btrfs/2326 is trying to acquire lock:\n ffff88810f215c98 (\u0026fs_info-\u003edev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250\n\n but task is already holding lock:\n ffff88810f215c98 (\u0026fs_info-\u003edev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250\n\n other info that might help us debug this:\n  Possible unsafe locking scenario:\n\n        CPU0\n        ----\n   lock(\u0026fs_info-\u003edev_replace.rwsem);\n   lock(\u0026fs_info-\u003edev_replace.rwsem);\n\n  *** DEADLOCK ***\n\n  May be due to missing lock nesting notation\n\n 1 lock held by btrfs/2326:\n  #0: ffff88810f215c98 (\u0026fs_info-\u003edev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250\n\n stack backtrace:\n CPU: 1 UID: 0 PID: 2326 Comm: btrfs Not tainted 6.11.0-rc3-btrfs-for-next #599\n Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011\n Call Trace:\n  \u003cTASK\u003e\n  dump_stack_lvl+0x5b/0x80\n  __lock_acquire+0x2798/0x69d0\n  ? __pfx___lock_acquire+0x10/0x10\n  ? __pfx___lock_acquire+0x10/0x10\n  lock_acquire+0x19d/0x4a0\n  ? btrfs_map_block+0x39f/0x2250\n  ? __pfx_lock_acquire+0x10/0x10\n  ? find_held_lock+0x2d/0x110\n  ? lock_is_held_type+0x8f/0x100\n  down_read+0x8e/0x440\n  ? btrfs_map_block+0x39f/0x2250\n  ? __pfx_down_read+0x10/0x10\n  ? do_raw_read_unlock+0x44/0x70\n  ? _raw_read_unlock+0x23/0x40\n  btrfs_map_block+0x39f/0x2250\n  ? btrfs_dev_replace_by_ioctl+0xd69/0x1d00\n  ? btrfs_bio_counter_inc_blocked+0xd9/0x2e0\n  ? __kasan_slab_alloc+0x6e/0x70\n  ? __pfx_btrfs_map_block+0x10/0x10\n  ? __pfx_btrfs_bio_counter_inc_blocked+0x10/0x10\n  ? kmem_cache_alloc_noprof+0x1f2/0x300\n  ? mempool_alloc_noprof+0xed/0x2b0\n  btrfs_submit_chunk+0x28d/0x17e0\n  ? __pfx_btrfs_submit_chunk+0x10/0x10\n  ? bvec_alloc+0xd7/0x1b0\n  ? bio_add_folio+0x171/0x270\n  ? __pfx_bio_add_folio+0x10/0x10\n  ? __kasan_check_read+0x20/0x20\n  btrfs_submit_bio+0x37/0x80\n  read_extent_buffer_pages+0x3df/0x6c0\n  btrfs_read_extent_buffer+0x13e/0x5f0\n  read_tree_block+0x81/0xe0\n  read_block_for_search+0x4bd/0x7a0\n  ? __pfx_read_block_for_search+0x10/0x10\n  btrfs_search_slot+0x78d/0x2720\n  ? __pfx_btrfs_search_slot+0x10/0x10\n  ? lock_is_held_type+0x8f/0x100\n  ? kasan_save_track+0x14/0x30\n  ? __kasan_slab_alloc+0x6e/0x70\n  ? kmem_cache_alloc_noprof+0x1f2/0x300\n  btrfs_get_raid_extent_offset+0x181/0x820\n  ? __pfx_lock_acquire+0x10/0x10\n  ? __pfx_btrfs_get_raid_extent_offset+0x10/0x10\n  ? down_read+0x194/0x440\n  ? __pfx_down_read+0x10/0x10\n  ? do_raw_read_unlock+0x44/0x70\n  ? _raw_read_unlock+0x23/0x40\n  btrfs_map_block+0x5b5/0x2250\n  ? __pfx_btrfs_map_block+0x10/0x10\n  scrub_submit_initial_read+0x8fe/0x11b0\n  ? __pfx_scrub_submit_initial_read+0x10/0x10\n  submit_initial_group_read+0x161/0x3a0\n  ? lock_release+0x20e/0x710\n  ? __pfx_submit_initial_group_read+0x10/0x10\n  ? __pfx_lock_release+0x10/0x10\n  scrub_simple_mirror.isra.0+0x3eb/0x580\n  scrub_stripe+0xe4d/0x1440\n  ? lock_release+0x20e/0x710\n  ? __pfx_scrub_stripe+0x10/0x10\n  ? __pfx_lock_release+0x10/0x10\n  ? do_raw_read_unlock+0x44/0x70\n  ? _raw_read_unlock+0x23/0x40\n  scrub_chunk+0x257/0x4a0\n  scrub_enumerate_chunks+0x64c/0xf70\n  ? __mutex_unlock_slowpath+0x147/0x5f0\n  ? __pfx_scrub_enumerate_chunks+0x10/0x10\n  ? bit_wait_timeout+0xb0/0x170\n  ? __up_read+0x189/0x700\n  ? scrub_workers_get+0x231/0x300\n  ? up_write+0x490/0x4f0\n  btrfs_scrub_dev+0x52e/0xcd0\n  ? create_pending_snapshots+0x230/0x250\n  ? __pfx_btrfs_scrub_dev+0x10/0x10\n  btrfs_dev_replace_by_ioctl+0xd69/0x1d00\n  ? lock_acquire+0x19d/0x4a0\n  ? __pfx_btrfs_dev_replace_by_ioctl+0x10/0x10\n  ?\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:40:16.557Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a2e99dcd7aafa9d474f7d9b0740b8f93c4e156c2"
        },
        {
          "url": "https://git.kernel.org/stable/c/8cca35cb29f81eba3e96ec44dad8696c8a2f9138"
        }
      ],
      "title": "btrfs: don\u0027t take dev_replace rwsem on task already holding it",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-48875",
    "datePublished": "2025-01-11T12:25:16.981Z",
    "dateReserved": "2025-01-09T09:51:32.472Z",
    "dateUpdated": "2026-05-11T20:40:16.557Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-48875",
      "date": "2026-07-23",
      "epss": "0.00143",
      "percentile": "0.0403"
    },
    "fkie_nvd": {
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: don\u0027t take dev_replace rwsem on task already holding it\\n\\nRunning fstests btrfs/011 with MKFS_OPTIONS=\\\"-O rst\\\" to force the usage of\\nthe RAID stripe-tree, we get the following splat from lockdep:\\n\\n BTRFS info (device sdd): dev_replace from /dev/sdd (devid 1) to /dev/sdb started\\n\\n ============================================\\n WARNING: possible recursive locking detected\\n 6.11.0-rc3-btrfs-for-next #599 Not tainted\\n --------------------------------------------\\n btrfs/2326 is trying to acquire lock:\\n ffff88810f215c98 (\u0026fs_info-\u003edev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250\\n\\n but task is already holding lock:\\n ffff88810f215c98 (\u0026fs_info-\u003edev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250\\n\\n other info that might help us debug this:\\n  Possible unsafe locking scenario:\\n\\n        CPU0\\n        ----\\n   lock(\u0026fs_info-\u003edev_replace.rwsem);\\n   lock(\u0026fs_info-\u003edev_replace.rwsem);\\n\\n  *** DEADLOCK ***\\n\\n  May be due to missing lock nesting notation\\n\\n 1 lock held by btrfs/2326:\\n  #0: ffff88810f215c98 (\u0026fs_info-\u003edev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250\\n\\n stack backtrace:\\n CPU: 1 UID: 0 PID: 2326 Comm: btrfs Not tainted 6.11.0-rc3-btrfs-for-next #599\\n Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011\\n Call Trace:\\n  \u003cTASK\u003e\\n  dump_stack_lvl+0x5b/0x80\\n  __lock_acquire+0x2798/0x69d0\\n  ? __pfx___lock_acquire+0x10/0x10\\n  ? __pfx___lock_acquire+0x10/0x10\\n  lock_acquire+0x19d/0x4a0\\n  ? btrfs_map_block+0x39f/0x2250\\n  ? __pfx_lock_acquire+0x10/0x10\\n  ? find_held_lock+0x2d/0x110\\n  ? lock_is_held_type+0x8f/0x100\\n  down_read+0x8e/0x440\\n  ? btrfs_map_block+0x39f/0x2250\\n  ? __pfx_down_read+0x10/0x10\\n  ? do_raw_read_unlock+0x44/0x70\\n  ? _raw_read_unlock+0x23/0x40\\n  btrfs_map_block+0x39f/0x2250\\n  ? btrfs_dev_replace_by_ioctl+0xd69/0x1d00\\n  ? btrfs_bio_counter_inc_blocked+0xd9/0x2e0\\n  ? __kasan_slab_alloc+0x6e/0x70\\n  ? __pfx_btrfs_map_block+0x10/0x10\\n  ? __pfx_btrfs_bio_counter_inc_blocked+0x10/0x10\\n  ? kmem_cache_alloc_noprof+0x1f2/0x300\\n  ? mempool_alloc_noprof+0xed/0x2b0\\n  btrfs_submit_chunk+0x28d/0x17e0\\n  ? __pfx_btrfs_submit_chunk+0x10/0x10\\n  ? bvec_alloc+0xd7/0x1b0\\n  ? bio_add_folio+0x171/0x270\\n  ? __pfx_bio_add_folio+0x10/0x10\\n  ? __kasan_check_read+0x20/0x20\\n  btrfs_submit_bio+0x37/0x80\\n  read_extent_buffer_pages+0x3df/0x6c0\\n  btrfs_read_extent_buffer+0x13e/0x5f0\\n  read_tree_block+0x81/0xe0\\n  read_block_for_search+0x4bd/0x7a0\\n  ? __pfx_read_block_for_search+0x10/0x10\\n  btrfs_search_slot+0x78d/0x2720\\n  ? __pfx_btrfs_search_slot+0x10/0x10\\n  ? lock_is_held_type+0x8f/0x100\\n  ? kasan_save_track+0x14/0x30\\n  ? __kasan_slab_alloc+0x6e/0x70\\n  ? kmem_cache_alloc_noprof+0x1f2/0x300\\n  btrfs_get_raid_extent_offset+0x181/0x820\\n  ? __pfx_lock_acquire+0x10/0x10\\n  ? __pfx_btrfs_get_raid_extent_offset+0x10/0x10\\n  ? down_read+0x194/0x440\\n  ? __pfx_down_read+0x10/0x10\\n  ? do_raw_read_unlock+0x44/0x70\\n  ? _raw_read_unlock+0x23/0x40\\n  btrfs_map_block+0x5b5/0x2250\\n  ? __pfx_btrfs_map_block+0x10/0x10\\n  scrub_submit_initial_read+0x8fe/0x11b0\\n  ? __pfx_scrub_submit_initial_read+0x10/0x10\\n  submit_initial_group_read+0x161/0x3a0\\n  ? lock_release+0x20e/0x710\\n  ? __pfx_submit_initial_group_read+0x10/0x10\\n  ? __pfx_lock_release+0x10/0x10\\n  scrub_simple_mirror.isra.0+0x3eb/0x580\\n  scrub_stripe+0xe4d/0x1440\\n  ? lock_release+0x20e/0x710\\n  ? __pfx_scrub_stripe+0x10/0x10\\n  ? __pfx_lock_release+0x10/0x10\\n  ? do_raw_read_unlock+0x44/0x70\\n  ? _raw_read_unlock+0x23/0x40\\n  scrub_chunk+0x257/0x4a0\\n  scrub_enumerate_chunks+0x64c/0xf70\\n  ? __mutex_unlock_slowpath+0x147/0x5f0\\n  ? __pfx_scrub_enumerate_chunks+0x10/0x10\\n  ? bit_wait_timeout+0xb0/0x170\\n  ? __up_read+0x189/0x700\\n  ? scrub_workers_get+0x231/0x300\\n  ? up_write+0x490/0x4f0\\n  btrfs_scrub_dev+0x52e/0xcd0\\n  ? create_pending_snapshots+0x230/0x250\\n  ? __pfx_btrfs_scrub_dev+0x10/0x10\\n  btrfs_dev_replace_by_ioctl+0xd69/0x1d00\\n  ? lock_acquire+0x19d/0x4a0\\n  ? __pfx_btrfs_dev_replace_by_ioctl+0x10/0x10\\n  ?\\n---truncated---\"}]",
      "id": "CVE-2024-48875",
      "lastModified": "2025-01-11T13:15:22.933",
      "published": "2025-01-11T13:15:22.933",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/8cca35cb29f81eba3e96ec44dad8696c8a2f9138\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/a2e99dcd7aafa9d474f7d9b0740b8f93c4e156c2\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/a5bc4e030f50fdbb1fbc69acc1e0c5f57c79d044\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Received"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-48875\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-01-11T13:15:22.933\",\"lastModified\":\"2026-06-17T07:58:56.987\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: don\u0027t take dev_replace rwsem on task already holding it\\n\\nRunning fstests btrfs/011 with MKFS_OPTIONS=\\\"-O rst\\\" to force the usage of\\nthe RAID stripe-tree, we get the following splat from lockdep:\\n\\n BTRFS info (device sdd): dev_replace from /dev/sdd (devid 1) to /dev/sdb started\\n\\n ============================================\\n WARNING: possible recursive locking detected\\n 6.11.0-rc3-btrfs-for-next #599 Not tainted\\n --------------------------------------------\\n btrfs/2326 is trying to acquire lock:\\n ffff88810f215c98 (\u0026fs_info-\u003edev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250\\n\\n but task is already holding lock:\\n ffff88810f215c98 (\u0026fs_info-\u003edev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250\\n\\n other info that might help us debug this:\\n  Possible unsafe locking scenario:\\n\\n        CPU0\\n        ----\\n   lock(\u0026fs_info-\u003edev_replace.rwsem);\\n   lock(\u0026fs_info-\u003edev_replace.rwsem);\\n\\n  *** DEADLOCK ***\\n\\n  May be due to missing lock nesting notation\\n\\n 1 lock held by btrfs/2326:\\n  #0: ffff88810f215c98 (\u0026fs_info-\u003edev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250\\n\\n stack backtrace:\\n CPU: 1 UID: 0 PID: 2326 Comm: btrfs Not tainted 6.11.0-rc3-btrfs-for-next #599\\n Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011\\n Call Trace:\\n  \u003cTASK\u003e\\n  dump_stack_lvl+0x5b/0x80\\n  __lock_acquire+0x2798/0x69d0\\n  ? __pfx___lock_acquire+0x10/0x10\\n  ? __pfx___lock_acquire+0x10/0x10\\n  lock_acquire+0x19d/0x4a0\\n  ? btrfs_map_block+0x39f/0x2250\\n  ? __pfx_lock_acquire+0x10/0x10\\n  ? find_held_lock+0x2d/0x110\\n  ? lock_is_held_type+0x8f/0x100\\n  down_read+0x8e/0x440\\n  ? btrfs_map_block+0x39f/0x2250\\n  ? __pfx_down_read+0x10/0x10\\n  ? do_raw_read_unlock+0x44/0x70\\n  ? _raw_read_unlock+0x23/0x40\\n  btrfs_map_block+0x39f/0x2250\\n  ? btrfs_dev_replace_by_ioctl+0xd69/0x1d00\\n  ? btrfs_bio_counter_inc_blocked+0xd9/0x2e0\\n  ? __kasan_slab_alloc+0x6e/0x70\\n  ? __pfx_btrfs_map_block+0x10/0x10\\n  ? __pfx_btrfs_bio_counter_inc_blocked+0x10/0x10\\n  ? kmem_cache_alloc_noprof+0x1f2/0x300\\n  ? mempool_alloc_noprof+0xed/0x2b0\\n  btrfs_submit_chunk+0x28d/0x17e0\\n  ? __pfx_btrfs_submit_chunk+0x10/0x10\\n  ? bvec_alloc+0xd7/0x1b0\\n  ? bio_add_folio+0x171/0x270\\n  ? __pfx_bio_add_folio+0x10/0x10\\n  ? __kasan_check_read+0x20/0x20\\n  btrfs_submit_bio+0x37/0x80\\n  read_extent_buffer_pages+0x3df/0x6c0\\n  btrfs_read_extent_buffer+0x13e/0x5f0\\n  read_tree_block+0x81/0xe0\\n  read_block_for_search+0x4bd/0x7a0\\n  ? __pfx_read_block_for_search+0x10/0x10\\n  btrfs_search_slot+0x78d/0x2720\\n  ? __pfx_btrfs_search_slot+0x10/0x10\\n  ? lock_is_held_type+0x8f/0x100\\n  ? kasan_save_track+0x14/0x30\\n  ? __kasan_slab_alloc+0x6e/0x70\\n  ? kmem_cache_alloc_noprof+0x1f2/0x300\\n  btrfs_get_raid_extent_offset+0x181/0x820\\n  ? __pfx_lock_acquire+0x10/0x10\\n  ? __pfx_btrfs_get_raid_extent_offset+0x10/0x10\\n  ? down_read+0x194/0x440\\n  ? __pfx_down_read+0x10/0x10\\n  ? do_raw_read_unlock+0x44/0x70\\n  ? _raw_read_unlock+0x23/0x40\\n  btrfs_map_block+0x5b5/0x2250\\n  ? __pfx_btrfs_map_block+0x10/0x10\\n  scrub_submit_initial_read+0x8fe/0x11b0\\n  ? __pfx_scrub_submit_initial_read+0x10/0x10\\n  submit_initial_group_read+0x161/0x3a0\\n  ? lock_release+0x20e/0x710\\n  ? __pfx_submit_initial_group_read+0x10/0x10\\n  ? __pfx_lock_release+0x10/0x10\\n  scrub_simple_mirror.isra.0+0x3eb/0x580\\n  scrub_stripe+0xe4d/0x1440\\n  ? lock_release+0x20e/0x710\\n  ? __pfx_scrub_stripe+0x10/0x10\\n  ? __pfx_lock_release+0x10/0x10\\n  ? do_raw_read_unlock+0x44/0x70\\n  ? _raw_read_unlock+0x23/0x40\\n  scrub_chunk+0x257/0x4a0\\n  scrub_enumerate_chunks+0x64c/0xf70\\n  ? __mutex_unlock_slowpath+0x147/0x5f0\\n  ? __pfx_scrub_enumerate_chunks+0x10/0x10\\n  ? bit_wait_timeout+0xb0/0x170\\n  ? __up_read+0x189/0x700\\n  ? scrub_workers_get+0x231/0x300\\n  ? up_write+0x490/0x4f0\\n  btrfs_scrub_dev+0x52e/0xcd0\\n  ? create_pending_snapshots+0x230/0x250\\n  ? __pfx_btrfs_scrub_dev+0x10/0x10\\n  btrfs_dev_replace_by_ioctl+0xd69/0x1d00\\n  ? lock_acquire+0x19d/0x4a0\\n  ? __pfx_btrfs_dev_replace_by_ioctl+0x10/0x10\\n  ?\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: no tome dev_replace rwsem en la tarea que ya lo contiene Al ejecutar fstests btrfs/011 con MKFS_OPTIONS=\\\"-O rst\\\" para forzar el uso del \u00e1rbol de bandas RAID, obtenemos el siguiente mensaje de lockdep: Informaci\u00f3n de BTRFS (dispositivo sdd): dev_replace de /dev/sdd (devid 1) a /dev/sdb iniciado ============================================ ADVERTENCIA: se detect\u00f3 un posible bloqueo recursivo 6.11.0-rc3-btrfs-for-next #599 No contaminado -------------------------------------------- btrfs/2326 est\u00e1 intentando adquirir el bloqueo: ffff88810f215c98 (\u0026amp;fs_info-\u0026gt;dev_replace.rwsem){++++}-{3:3}, en: btrfs_map_block+0x39f/0x2250 pero la tarea ya tiene el bloqueo: ffff88810f215c98 (\u0026amp;fs_info-\u0026gt;dev_replace.rwsem){++++}-{3:3}, en: btrfs_map_block+0x39f/0x2250 otra informaci\u00f3n que podr\u00eda ayudarnos a depurar esto: Posible escenario de bloqueo inseguro: CPU0 ---- lock(\u0026amp;fs_info-\u0026gt;dev_replace.rwsem); lock(\u0026amp;fs_info-\u0026gt;dev_replace.rwsem); *** BLOQUEO INTERMEDIO *** Puede deberse a la falta de notaci\u00f3n de anidamiento de bloqueo 1 bloqueo mantenido por btrfs/2326: #0: ffff88810f215c98 (\u0026amp;fs_info-\u0026gt;dev_replace.rwsem){++++}-{3:3}, en: btrfs_map_block+0x39f/0x2250 seguimiento de pila: CPU: 1 UID: 0 PID: 2326 Comm: btrfs No contaminado 6.11.0-rc3-btrfs-for-next #599 Nombre del hardware: Bochs Bochs, BIOS Bochs 01/01/2011 Seguimiento de llamadas:  dump_stack_lvl+0x5b/0x80 __lock_acquire+0x2798/0x69d0 ? __pfx___lock_acquire+0x10/0x10 ? __pfx___lock_acquire+0x10/0x10 lock_acquire+0x19d/0x4a0 ? btrfs_map_block+0x39f/0x2250 ? __pfx_lock_acquire+0x10/0x10 ? find_held_lock+0x2d/0x110 ? lock_is_held_type+0x8f/0x100 down_read+0x8e/0x440 ? btrfs_map_block+0x39f/0x2250 ? __pfx_down_read+0x10/0x10 ? do_raw_read_unlock+0x44/0x70 ? kmem_cache_alloc_noprof+0x1f2/0x300 ? bvec_alloc+0xd7/0x1b0 ? bio_add_folio+0x171/0x270 ? __pfx_bio_add_folio+0x10/0x10 ? __kasan_check_read+0x20/0x20 btrfs_submit_bio+0x37/0x80 lectura_extensi\u00f3n_b\u00fafer_p\u00e1ginas+0x3df/0x6c0 btrfs_lectura_extensi\u00f3n_b\u00fafer+0x13e/0x5f0 lectura_\u00e1rbol_bloque+0x81/0xe0 lectura_bloque_para_b\u00fasqueda+0x4bd/0x7a0 ? __pfx_lectura_bloque_para_b\u00fasqueda+0x10/0x10 btrfs_b\u00fasqueda_slot+0x78d/0x2720 ? __pfx_btrfs_b\u00fasqueda_slot+0x10/0x10 ? bloqueo_se_retiene_tipo+0x8f/0x100 ? kasan_guardar_pista+0x14/0x30 ? __kasan_slab_alloc+0x6e/0x70 ? kmem_cache_alloc_noprof+0x1f2/0x300 btrfs_get_raid_extent_offset+0x181/0x820 ? __pfx_lock_acquire+0x10/0x10 ? __pfx_btrfs_get_raid_extent_offset+0x10/0x10 ? down_read+0x194/0x440 ? __pfx_down_read+0x10/0x10 ? do_raw_read_unlock+0x44/0x70 ? _raw_read_unlock+0x23/0x40 btrfs_map_block+0x5b5/0x2250 ? liberaci\u00f3n de bloqueo+0x20e/0x710 ? __pfx_scrub_stripe+0x10/0x10 ? __pfx_lock_release+0x10/0x10 ? hacer_desbloqueo_lectura_sin_encriptar+0x44/0x70 ? _desbloqueo_lectura_sin_encriptar+0x23/0x40 fragmento_de_scruzamiento+0x257/0x4a0 fragmento_de_scruzamiento_enumerar+0x64c/0xf70 ? __mutex_unlock_slowpath+0x147/0x5f0 ? __pfx_scrub_enumerar_chunks+0x10/0x10 ? tiempo_de_espera_bit+0xb0/0x170 ? __up_read+0x189/0x700 ? obtenci\u00f3n_trabajadores_de_scruzamiento+0x231/0x300 ? up_write+0x490/0x4f0 btrfs_scrub_dev+0x52e/0xcd0 ? create_pending_snapshots+0x230/0x250 ? __pfx_btrfs_scrub_dev+0x10/0x10 btrfs_dev_replace_by_ioctl+0xd69/0x1d00 ? lock_acquire+0x19d/0x4a0 ? __pfx_btrfs_dev_replace_by_ioctl+0x10/0x10 ? ---truncado---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/btrfs/dev-replace.c\",\"fs/btrfs/fs.h\",\"fs/btrfs/volumes.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"10e27980f2ff66ba0c6da55f33b4814d5bc86573\",\"lessThan\":\"a2e99dcd7aafa9d474f7d9b0740b8f93c4e156c2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"10e27980f2ff66ba0c6da55f33b4814d5bc86573\",\"lessThan\":\"8cca35cb29f81eba3e96ec44dad8696c8a2f9138\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/btrfs/dev-replace.c\",\"fs/btrfs/fs.h\",\"fs/btrfs/volumes.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.7\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.7\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.5\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.13\",\"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\":\"2025-10-01T19:55:40.762435Z\",\"id\":\"CVE-2024-48875\",\"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-667\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-667\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.6.66\",\"matchCriteriaId\":\"90A079EF-8212-45DF-84FB-C525A64635B0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.5\",\"matchCriteriaId\":\"9501D045-7A94-42CA-8B03-821BE94A65B7\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/8cca35cb29f81eba3e96ec44dad8696c8a2f9138\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a2e99dcd7aafa9d474f7d9b0740b8f93c4e156c2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T13:51:14+00:00",
      "cve": "CVE-2024-48875",
      "id": "CVE-2024-48875",
      "initial_release_date": "2024-01-01T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "156",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: btrfs: don\u0027t take dev_replace rwsem on task already holding it",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-48875.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-05-11T14:45:19Z",
      "cve": "CVE-2024-48875",
      "id": "CVE-2024-48875",
      "initial_release_date": "2025-01-12T00:18:00Z",
      "product_status:known_not_affected": "332",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-48875",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-48875.json",
      "version": "24"
    },
    "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-2024-48875\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:55:40.762435Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-667\", \"description\": \"CWE-667 Improper Locking\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T15:52:44.261Z\"}}], \"cna\": {\"title\": \"btrfs: don\u0027t take dev_replace rwsem on task already holding it\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"10e27980f2ff66ba0c6da55f33b4814d5bc86573\", \"lessThan\": \"a2e99dcd7aafa9d474f7d9b0740b8f93c4e156c2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"10e27980f2ff66ba0c6da55f33b4814d5bc86573\", \"lessThan\": \"8cca35cb29f81eba3e96ec44dad8696c8a2f9138\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/btrfs/dev-replace.c\", \"fs/btrfs/fs.h\", \"fs/btrfs/volumes.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.7\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.7\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.12.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/btrfs/dev-replace.c\", \"fs/btrfs/fs.h\", \"fs/btrfs/volumes.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/a2e99dcd7aafa9d474f7d9b0740b8f93c4e156c2\"}, {\"url\": \"https://git.kernel.org/stable/c/8cca35cb29f81eba3e96ec44dad8696c8a2f9138\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: don\u0027t take dev_replace rwsem on task already holding it\\n\\nRunning fstests btrfs/011 with MKFS_OPTIONS=\\\"-O rst\\\" to force the usage of\\nthe RAID stripe-tree, we get the following splat from lockdep:\\n\\n BTRFS info (device sdd): dev_replace from /dev/sdd (devid 1) to /dev/sdb started\\n\\n ============================================\\n WARNING: possible recursive locking detected\\n 6.11.0-rc3-btrfs-for-next #599 Not tainted\\n --------------------------------------------\\n btrfs/2326 is trying to acquire lock:\\n ffff88810f215c98 (\u0026fs_info-\u003edev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250\\n\\n but task is already holding lock:\\n ffff88810f215c98 (\u0026fs_info-\u003edev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250\\n\\n other info that might help us debug this:\\n  Possible unsafe locking scenario:\\n\\n        CPU0\\n        ----\\n   lock(\u0026fs_info-\u003edev_replace.rwsem);\\n   lock(\u0026fs_info-\u003edev_replace.rwsem);\\n\\n  *** DEADLOCK ***\\n\\n  May be due to missing lock nesting notation\\n\\n 1 lock held by btrfs/2326:\\n  #0: ffff88810f215c98 (\u0026fs_info-\u003edev_replace.rwsem){++++}-{3:3}, at: btrfs_map_block+0x39f/0x2250\\n\\n stack backtrace:\\n CPU: 1 UID: 0 PID: 2326 Comm: btrfs Not tainted 6.11.0-rc3-btrfs-for-next #599\\n Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011\\n Call Trace:\\n  \u003cTASK\u003e\\n  dump_stack_lvl+0x5b/0x80\\n  __lock_acquire+0x2798/0x69d0\\n  ? __pfx___lock_acquire+0x10/0x10\\n  ? __pfx___lock_acquire+0x10/0x10\\n  lock_acquire+0x19d/0x4a0\\n  ? btrfs_map_block+0x39f/0x2250\\n  ? __pfx_lock_acquire+0x10/0x10\\n  ? find_held_lock+0x2d/0x110\\n  ? lock_is_held_type+0x8f/0x100\\n  down_read+0x8e/0x440\\n  ? btrfs_map_block+0x39f/0x2250\\n  ? __pfx_down_read+0x10/0x10\\n  ? do_raw_read_unlock+0x44/0x70\\n  ? _raw_read_unlock+0x23/0x40\\n  btrfs_map_block+0x39f/0x2250\\n  ? btrfs_dev_replace_by_ioctl+0xd69/0x1d00\\n  ? btrfs_bio_counter_inc_blocked+0xd9/0x2e0\\n  ? __kasan_slab_alloc+0x6e/0x70\\n  ? __pfx_btrfs_map_block+0x10/0x10\\n  ? __pfx_btrfs_bio_counter_inc_blocked+0x10/0x10\\n  ? kmem_cache_alloc_noprof+0x1f2/0x300\\n  ? mempool_alloc_noprof+0xed/0x2b0\\n  btrfs_submit_chunk+0x28d/0x17e0\\n  ? __pfx_btrfs_submit_chunk+0x10/0x10\\n  ? bvec_alloc+0xd7/0x1b0\\n  ? bio_add_folio+0x171/0x270\\n  ? __pfx_bio_add_folio+0x10/0x10\\n  ? __kasan_check_read+0x20/0x20\\n  btrfs_submit_bio+0x37/0x80\\n  read_extent_buffer_pages+0x3df/0x6c0\\n  btrfs_read_extent_buffer+0x13e/0x5f0\\n  read_tree_block+0x81/0xe0\\n  read_block_for_search+0x4bd/0x7a0\\n  ? __pfx_read_block_for_search+0x10/0x10\\n  btrfs_search_slot+0x78d/0x2720\\n  ? __pfx_btrfs_search_slot+0x10/0x10\\n  ? lock_is_held_type+0x8f/0x100\\n  ? kasan_save_track+0x14/0x30\\n  ? __kasan_slab_alloc+0x6e/0x70\\n  ? kmem_cache_alloc_noprof+0x1f2/0x300\\n  btrfs_get_raid_extent_offset+0x181/0x820\\n  ? __pfx_lock_acquire+0x10/0x10\\n  ? __pfx_btrfs_get_raid_extent_offset+0x10/0x10\\n  ? down_read+0x194/0x440\\n  ? __pfx_down_read+0x10/0x10\\n  ? do_raw_read_unlock+0x44/0x70\\n  ? _raw_read_unlock+0x23/0x40\\n  btrfs_map_block+0x5b5/0x2250\\n  ? __pfx_btrfs_map_block+0x10/0x10\\n  scrub_submit_initial_read+0x8fe/0x11b0\\n  ? __pfx_scrub_submit_initial_read+0x10/0x10\\n  submit_initial_group_read+0x161/0x3a0\\n  ? lock_release+0x20e/0x710\\n  ? __pfx_submit_initial_group_read+0x10/0x10\\n  ? __pfx_lock_release+0x10/0x10\\n  scrub_simple_mirror.isra.0+0x3eb/0x580\\n  scrub_stripe+0xe4d/0x1440\\n  ? lock_release+0x20e/0x710\\n  ? __pfx_scrub_stripe+0x10/0x10\\n  ? __pfx_lock_release+0x10/0x10\\n  ? do_raw_read_unlock+0x44/0x70\\n  ? _raw_read_unlock+0x23/0x40\\n  scrub_chunk+0x257/0x4a0\\n  scrub_enumerate_chunks+0x64c/0xf70\\n  ? __mutex_unlock_slowpath+0x147/0x5f0\\n  ? __pfx_scrub_enumerate_chunks+0x10/0x10\\n  ? bit_wait_timeout+0xb0/0x170\\n  ? __up_read+0x189/0x700\\n  ? scrub_workers_get+0x231/0x300\\n  ? up_write+0x490/0x4f0\\n  btrfs_scrub_dev+0x52e/0xcd0\\n  ? create_pending_snapshots+0x230/0x250\\n  ? __pfx_btrfs_scrub_dev+0x10/0x10\\n  btrfs_dev_replace_by_ioctl+0xd69/0x1d00\\n  ? lock_acquire+0x19d/0x4a0\\n  ? __pfx_btrfs_dev_replace_by_ioctl+0x10/0x10\\n  ?\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.5\", \"versionStartIncluding\": \"6.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13\", \"versionStartIncluding\": \"6.7\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:40:16.557Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-48875\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:40:16.557Z\", \"dateReserved\": \"2025-01-09T09:51:32.472Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-01-11T12:25:16.981Z\", \"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.

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  • 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.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.