CVE-2024-56582 (GCVE-0-2024-56582)

Vulnerability from cvelistv5 – Published: 2024-12-27 14:23 – Updated: 2026-05-11 20:55
VLAI
Title
btrfs: fix use-after-free in btrfs_encoded_read_endio()
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix use-after-free in btrfs_encoded_read_endio() Shinichiro reported the following use-after free that sometimes is happening in our CI system when running fstests' btrfs/284 on a TCMU runner device: BUG: KASAN: slab-use-after-free in lock_release+0x708/0x780 Read of size 8 at addr ffff888106a83f18 by task kworker/u80:6/219 CPU: 8 UID: 0 PID: 219 Comm: kworker/u80:6 Not tainted 6.12.0-rc6-kts+ #15 Hardware name: Supermicro Super Server/X11SPi-TF, BIOS 3.3 02/21/2020 Workqueue: btrfs-endio btrfs_end_bio_work [btrfs] Call Trace: <TASK> dump_stack_lvl+0x6e/0xa0 ? lock_release+0x708/0x780 print_report+0x174/0x505 ? lock_release+0x708/0x780 ? __virt_addr_valid+0x224/0x410 ? lock_release+0x708/0x780 kasan_report+0xda/0x1b0 ? lock_release+0x708/0x780 ? __wake_up+0x44/0x60 lock_release+0x708/0x780 ? __pfx_lock_release+0x10/0x10 ? __pfx_do_raw_spin_lock+0x10/0x10 ? lock_is_held_type+0x9a/0x110 _raw_spin_unlock_irqrestore+0x1f/0x60 __wake_up+0x44/0x60 btrfs_encoded_read_endio+0x14b/0x190 [btrfs] btrfs_check_read_bio+0x8d9/0x1360 [btrfs] ? lock_release+0x1b0/0x780 ? trace_lock_acquire+0x12f/0x1a0 ? __pfx_btrfs_check_read_bio+0x10/0x10 [btrfs] ? process_one_work+0x7e3/0x1460 ? lock_acquire+0x31/0xc0 ? process_one_work+0x7e3/0x1460 process_one_work+0x85c/0x1460 ? __pfx_process_one_work+0x10/0x10 ? assign_work+0x16c/0x240 worker_thread+0x5e6/0xfc0 ? __pfx_worker_thread+0x10/0x10 kthread+0x2c3/0x3a0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x31/0x70 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> Allocated by task 3661: kasan_save_stack+0x30/0x50 kasan_save_track+0x14/0x30 __kasan_kmalloc+0xaa/0xb0 btrfs_encoded_read_regular_fill_pages+0x16c/0x6d0 [btrfs] send_extent_data+0xf0f/0x24a0 [btrfs] process_extent+0x48a/0x1830 [btrfs] changed_cb+0x178b/0x2ea0 [btrfs] btrfs_ioctl_send+0x3bf9/0x5c20 [btrfs] _btrfs_ioctl_send+0x117/0x330 [btrfs] btrfs_ioctl+0x184a/0x60a0 [btrfs] __x64_sys_ioctl+0x12e/0x1a0 do_syscall_64+0x95/0x180 entry_SYSCALL_64_after_hwframe+0x76/0x7e Freed by task 3661: kasan_save_stack+0x30/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x70 __kasan_slab_free+0x4f/0x70 kfree+0x143/0x490 btrfs_encoded_read_regular_fill_pages+0x531/0x6d0 [btrfs] send_extent_data+0xf0f/0x24a0 [btrfs] process_extent+0x48a/0x1830 [btrfs] changed_cb+0x178b/0x2ea0 [btrfs] btrfs_ioctl_send+0x3bf9/0x5c20 [btrfs] _btrfs_ioctl_send+0x117/0x330 [btrfs] btrfs_ioctl+0x184a/0x60a0 [btrfs] __x64_sys_ioctl+0x12e/0x1a0 do_syscall_64+0x95/0x180 entry_SYSCALL_64_after_hwframe+0x76/0x7e The buggy address belongs to the object at ffff888106a83f00 which belongs to the cache kmalloc-rnd-07-96 of size 96 The buggy address is located 24 bytes inside of freed 96-byte region [ffff888106a83f00, ffff888106a83f60) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888106a83800 pfn:0x106a83 flags: 0x17ffffc0000000(node=0|zone=2|lastcpupid=0x1fffff) page_type: f5(slab) raw: 0017ffffc0000000 ffff888100053680 ffffea0004917200 0000000000000004 raw: ffff888106a83800 0000000080200019 00000001f5000000 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888106a83e00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff888106a83e80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff888106a83f00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff888106a83f80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff888106a84000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== Further analyzing the trace and ---truncated---
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1881fba89bd5dcd364d2e1bf561912a90a11c21a , < a40de0330af4fb7bc6b354250c24f294f8b826a0 (git)
Affected: 1881fba89bd5dcd364d2e1bf561912a90a11c21a , < 6228f13f1996a4feb9b601d6644bf0bfe03671dd (git)
Affected: 1881fba89bd5dcd364d2e1bf561912a90a11c21a , < f8a5129e4a9fc3f6aa3f137513253b51b31b94d4 (git)
Affected: 1881fba89bd5dcd364d2e1bf561912a90a11c21a , < 05b36b04d74a517d6675bf2f90829ff1ac7e28dc (git)
Create a notification for this product.
Linux Linux Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 6.1.124 , ≤ 6.1.* (semver)
Unaffected: 6.6.70 , ≤ 6.6.* (semver)
Unaffected: 6.12.4 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
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                "id": "CVE-2024-56582",
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          "dateUpdated": "2025-02-11T15:45:24.334Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix use-after-free in btrfs_encoded_read_endio()\n\nShinichiro reported the following use-after free that sometimes is\nhappening in our CI system when running fstests\u0027 btrfs/284 on a TCMU\nrunner device:\n\n  BUG: KASAN: slab-use-after-free in lock_release+0x708/0x780\n  Read of size 8 at addr ffff888106a83f18 by task kworker/u80:6/219\n\n  CPU: 8 UID: 0 PID: 219 Comm: kworker/u80:6 Not tainted 6.12.0-rc6-kts+ #15\n  Hardware name: Supermicro Super Server/X11SPi-TF, BIOS 3.3 02/21/2020\n  Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]\n  Call Trace:\n   \u003cTASK\u003e\n   dump_stack_lvl+0x6e/0xa0\n   ? lock_release+0x708/0x780\n   print_report+0x174/0x505\n   ? lock_release+0x708/0x780\n   ? __virt_addr_valid+0x224/0x410\n   ? lock_release+0x708/0x780\n   kasan_report+0xda/0x1b0\n   ? lock_release+0x708/0x780\n   ? __wake_up+0x44/0x60\n   lock_release+0x708/0x780\n   ? __pfx_lock_release+0x10/0x10\n   ? __pfx_do_raw_spin_lock+0x10/0x10\n   ? lock_is_held_type+0x9a/0x110\n   _raw_spin_unlock_irqrestore+0x1f/0x60\n   __wake_up+0x44/0x60\n   btrfs_encoded_read_endio+0x14b/0x190 [btrfs]\n   btrfs_check_read_bio+0x8d9/0x1360 [btrfs]\n   ? lock_release+0x1b0/0x780\n   ? trace_lock_acquire+0x12f/0x1a0\n   ? __pfx_btrfs_check_read_bio+0x10/0x10 [btrfs]\n   ? process_one_work+0x7e3/0x1460\n   ? lock_acquire+0x31/0xc0\n   ? process_one_work+0x7e3/0x1460\n   process_one_work+0x85c/0x1460\n   ? __pfx_process_one_work+0x10/0x10\n   ? assign_work+0x16c/0x240\n   worker_thread+0x5e6/0xfc0\n   ? __pfx_worker_thread+0x10/0x10\n   kthread+0x2c3/0x3a0\n   ? __pfx_kthread+0x10/0x10\n   ret_from_fork+0x31/0x70\n   ? __pfx_kthread+0x10/0x10\n   ret_from_fork_asm+0x1a/0x30\n   \u003c/TASK\u003e\n\n  Allocated by task 3661:\n   kasan_save_stack+0x30/0x50\n   kasan_save_track+0x14/0x30\n   __kasan_kmalloc+0xaa/0xb0\n   btrfs_encoded_read_regular_fill_pages+0x16c/0x6d0 [btrfs]\n   send_extent_data+0xf0f/0x24a0 [btrfs]\n   process_extent+0x48a/0x1830 [btrfs]\n   changed_cb+0x178b/0x2ea0 [btrfs]\n   btrfs_ioctl_send+0x3bf9/0x5c20 [btrfs]\n   _btrfs_ioctl_send+0x117/0x330 [btrfs]\n   btrfs_ioctl+0x184a/0x60a0 [btrfs]\n   __x64_sys_ioctl+0x12e/0x1a0\n   do_syscall_64+0x95/0x180\n   entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\n  Freed by task 3661:\n   kasan_save_stack+0x30/0x50\n   kasan_save_track+0x14/0x30\n   kasan_save_free_info+0x3b/0x70\n   __kasan_slab_free+0x4f/0x70\n   kfree+0x143/0x490\n   btrfs_encoded_read_regular_fill_pages+0x531/0x6d0 [btrfs]\n   send_extent_data+0xf0f/0x24a0 [btrfs]\n   process_extent+0x48a/0x1830 [btrfs]\n   changed_cb+0x178b/0x2ea0 [btrfs]\n   btrfs_ioctl_send+0x3bf9/0x5c20 [btrfs]\n   _btrfs_ioctl_send+0x117/0x330 [btrfs]\n   btrfs_ioctl+0x184a/0x60a0 [btrfs]\n   __x64_sys_ioctl+0x12e/0x1a0\n   do_syscall_64+0x95/0x180\n   entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\n  The buggy address belongs to the object at ffff888106a83f00\n   which belongs to the cache kmalloc-rnd-07-96 of size 96\n  The buggy address is located 24 bytes inside of\n   freed 96-byte region [ffff888106a83f00, ffff888106a83f60)\n\n  The buggy address belongs to the physical page:\n  page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888106a83800 pfn:0x106a83\n  flags: 0x17ffffc0000000(node=0|zone=2|lastcpupid=0x1fffff)\n  page_type: f5(slab)\n  raw: 0017ffffc0000000 ffff888100053680 ffffea0004917200 0000000000000004\n  raw: ffff888106a83800 0000000080200019 00000001f5000000 0000000000000000\n  page dumped because: kasan: bad access detected\n\n  Memory state around the buggy address:\n   ffff888106a83e00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\n   ffff888106a83e80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\n  \u003effff888106a83f00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\n                              ^\n   ffff888106a83f80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\n   ffff888106a84000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n  ==================================================================\n\nFurther analyzing the trace and \n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:55:14.844Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a40de0330af4fb7bc6b354250c24f294f8b826a0"
        },
        {
          "url": "https://git.kernel.org/stable/c/6228f13f1996a4feb9b601d6644bf0bfe03671dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/f8a5129e4a9fc3f6aa3f137513253b51b31b94d4"
        },
        {
          "url": "https://git.kernel.org/stable/c/05b36b04d74a517d6675bf2f90829ff1ac7e28dc"
        }
      ],
      "title": "btrfs: fix use-after-free in btrfs_encoded_read_endio()",
      "x_generator": {
        "engine": "bippy-1.2.0"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56582",
    "datePublished": "2024-12-27T14:23:23.851Z",
    "dateReserved": "2024-12-27T14:03:06.000Z",
    "dateUpdated": "2026-05-11T20:55:14.844Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-56582",
      "date": "2026-05-30",
      "epss": "0.00013",
      "percentile": "0.02465"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-56582\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-27T15:15:17.333\",\"lastModified\":\"2025-11-03T21:17:59.353\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: fix use-after-free in btrfs_encoded_read_endio()\\n\\nShinichiro reported the following use-after free that sometimes is\\nhappening in our CI system when running fstests\u0027 btrfs/284 on a TCMU\\nrunner device:\\n\\n  BUG: KASAN: slab-use-after-free in lock_release+0x708/0x780\\n  Read of size 8 at addr ffff888106a83f18 by task kworker/u80:6/219\\n\\n  CPU: 8 UID: 0 PID: 219 Comm: kworker/u80:6 Not tainted 6.12.0-rc6-kts+ #15\\n  Hardware name: Supermicro Super Server/X11SPi-TF, BIOS 3.3 02/21/2020\\n  Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]\\n  Call Trace:\\n   \u003cTASK\u003e\\n   dump_stack_lvl+0x6e/0xa0\\n   ? lock_release+0x708/0x780\\n   print_report+0x174/0x505\\n   ? lock_release+0x708/0x780\\n   ? __virt_addr_valid+0x224/0x410\\n   ? lock_release+0x708/0x780\\n   kasan_report+0xda/0x1b0\\n   ? lock_release+0x708/0x780\\n   ? __wake_up+0x44/0x60\\n   lock_release+0x708/0x780\\n   ? __pfx_lock_release+0x10/0x10\\n   ? __pfx_do_raw_spin_lock+0x10/0x10\\n   ? lock_is_held_type+0x9a/0x110\\n   _raw_spin_unlock_irqrestore+0x1f/0x60\\n   __wake_up+0x44/0x60\\n   btrfs_encoded_read_endio+0x14b/0x190 [btrfs]\\n   btrfs_check_read_bio+0x8d9/0x1360 [btrfs]\\n   ? lock_release+0x1b0/0x780\\n   ? trace_lock_acquire+0x12f/0x1a0\\n   ? __pfx_btrfs_check_read_bio+0x10/0x10 [btrfs]\\n   ? process_one_work+0x7e3/0x1460\\n   ? lock_acquire+0x31/0xc0\\n   ? process_one_work+0x7e3/0x1460\\n   process_one_work+0x85c/0x1460\\n   ? __pfx_process_one_work+0x10/0x10\\n   ? assign_work+0x16c/0x240\\n   worker_thread+0x5e6/0xfc0\\n   ? __pfx_worker_thread+0x10/0x10\\n   kthread+0x2c3/0x3a0\\n   ? __pfx_kthread+0x10/0x10\\n   ret_from_fork+0x31/0x70\\n   ? __pfx_kthread+0x10/0x10\\n   ret_from_fork_asm+0x1a/0x30\\n   \u003c/TASK\u003e\\n\\n  Allocated by task 3661:\\n   kasan_save_stack+0x30/0x50\\n   kasan_save_track+0x14/0x30\\n   __kasan_kmalloc+0xaa/0xb0\\n   btrfs_encoded_read_regular_fill_pages+0x16c/0x6d0 [btrfs]\\n   send_extent_data+0xf0f/0x24a0 [btrfs]\\n   process_extent+0x48a/0x1830 [btrfs]\\n   changed_cb+0x178b/0x2ea0 [btrfs]\\n   btrfs_ioctl_send+0x3bf9/0x5c20 [btrfs]\\n   _btrfs_ioctl_send+0x117/0x330 [btrfs]\\n   btrfs_ioctl+0x184a/0x60a0 [btrfs]\\n   __x64_sys_ioctl+0x12e/0x1a0\\n   do_syscall_64+0x95/0x180\\n   entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n\\n  Freed by task 3661:\\n   kasan_save_stack+0x30/0x50\\n   kasan_save_track+0x14/0x30\\n   kasan_save_free_info+0x3b/0x70\\n   __kasan_slab_free+0x4f/0x70\\n   kfree+0x143/0x490\\n   btrfs_encoded_read_regular_fill_pages+0x531/0x6d0 [btrfs]\\n   send_extent_data+0xf0f/0x24a0 [btrfs]\\n   process_extent+0x48a/0x1830 [btrfs]\\n   changed_cb+0x178b/0x2ea0 [btrfs]\\n   btrfs_ioctl_send+0x3bf9/0x5c20 [btrfs]\\n   _btrfs_ioctl_send+0x117/0x330 [btrfs]\\n   btrfs_ioctl+0x184a/0x60a0 [btrfs]\\n   __x64_sys_ioctl+0x12e/0x1a0\\n   do_syscall_64+0x95/0x180\\n   entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n\\n  The buggy address belongs to the object at ffff888106a83f00\\n   which belongs to the cache kmalloc-rnd-07-96 of size 96\\n  The buggy address is located 24 bytes inside of\\n   freed 96-byte region [ffff888106a83f00, ffff888106a83f60)\\n\\n  The buggy address belongs to the physical page:\\n  page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888106a83800 pfn:0x106a83\\n  flags: 0x17ffffc0000000(node=0|zone=2|lastcpupid=0x1fffff)\\n  page_type: f5(slab)\\n  raw: 0017ffffc0000000 ffff888100053680 ffffea0004917200 0000000000000004\\n  raw: ffff888106a83800 0000000080200019 00000001f5000000 0000000000000000\\n  page dumped because: kasan: bad access detected\\n\\n  Memory state around the buggy address:\\n   ffff888106a83e00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\\n   ffff888106a83e80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\\n  \u003effff888106a83f00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\\n                              ^\\n   ffff888106a83f80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\\n   ffff888106a84000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\\n  ==================================================================\\n\\nFurther analyzing the trace and \\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: correcci\u00f3n de use-after-free en btrfs_encoded_read_endio() Shinichiro inform\u00f3 el siguiente use-after-free que a veces sucede en nuestro sistema CI cuando se ejecuta btrfs/284 de fstests en un dispositivo ejecutor de TCMU: ERROR: KASAN: slab-use-after-free en lock_release+0x708/0x780 Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff888106a83f18 por la tarea kworker/u80:6/219 CPU: 8 UID: 0 PID: 219 Comm: kworker/u80:6 No contaminado 6.12.0-rc6-kts+ #15 Nombre del hardware: Supermicro Super Server/X11SPi-TF, BIOS 3.3 21/02/2020 Cola de trabajo: btrfs-endio btrfs_end_bio_work [btrfs] Seguimiento de llamadas:  dump_stack_lvl+0x6e/0xa0 ? lock_release+0x708/0x780 print_report+0x174/0x505 ? lock_release+0x708/0x780 ? __virt_addr_valid+0x224/0x410 ? lock_release+0x708/0x780 kasan_report+0xda/0x1b0 ? lock_release+0x708/0x780 ? __wake_up+0x44/0x60 lock_release+0x708/0x780 ? __pfx_lock_release+0x10/0x10 ? __pfx_do_raw_spin_lock+0x10/0x10 ? bloqueo_se_retiene_tipo+0x9a/0x110 _raw_spin_unlock_irqrestore+0x1f/0x60 __wake_up+0x44/0x60 btrfs_encoded_read_endio+0x14b/0x190 [btrfs] btrfs_check_read_bio+0x8d9/0x1360 [btrfs] ? bloqueo_liberaci\u00f3n+0x1b0/0x780 ? trace_lock_acquire+0x12f/0x1a0 ? __pfx_btrfs_check_read_bio+0x10/0x10 [btrfs] ? proceso_una_obra+0x7e3/0x1460 ? bloqueo_adquirir+0x31/0xc0 ? proceso_uno_trabajo+0x7e3/0x1460 proceso_uno_trabajo+0x85c/0x1460 ? __pfx_proceso_uno_trabajo+0x10/0x10 ? asignar_trabajo+0x16c/0x240 subproceso_trabajador+0x5e6/0xfc0 ? __pfx_subproceso_trabajador+0x10/0x10 kthread+0x2c3/0x3a0 ? __pfx_kthread+0x10/0x10 retirar_de_bifurcaci\u00f3n+0x31/0x70 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30  Asignado por la tarea 3661: kasan_save_stack+0x30/0x50 kasan_save_track+0x14/0x30 __kasan_kmalloc+0xaa/0xb0 btrfs_encoded_read_regular_fill_pages+0x16c/0x6d0 [btrfs] send_extent_data+0xf0f/0x24a0 [btrfs] process_extent+0x48a/0x1830 [btrfs] changed_cb+0x178b/0x2ea0 [btrfs] btrfs_ioctl_send+0x3bf9/0x5c20 [btrfs] _btrfs_ioctl_send+0x117/0x330 [btrfs] btrfs_ioctl+0x184a/0x60a0 [btrfs] __x64_sys_ioctl+0x12e/0x1a0 do_syscall_64+0x95/0x180 entry_SYSCALL_64_after_hwframe+0x76/0x7e Liberado por la tarea 3661: kasan_save_stack+0x30/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x70 __kasan_slab_free+0x4f/0x70 kfree+0x143/0x490 btrfs_encoded_read_regular_fill_pages+0x531/0x6d0 [btrfs] enviar_datos_de_extensi\u00f3n+0xf0f/0x24a0 [btrfs] procesar_extensi\u00f3n+0x48a/0x1830 [btrfs] cambiar_cb+0x178b/0x2ea0 [btrfs] btrfs_ioctl_send+0x3bf9/0x5c20 [btrfs] _btrfs_ioctl_send+0x117/0x330 [btrfs] btrfs_ioctl+0x184a/0x60a0 [btrfs] __x64_sys_ioctl+0x12e/0x1a0 hacer_llamada_al_sistema_64+0x95/0x180 entry_SYSCALL_64_after_hwframe+0x76/0x7e La direcci\u00f3n con errores pertenece al objeto en ffff888106a83f00 que pertenece a la cach\u00e9 kmalloc-rnd-07-96 de tama\u00f1o 96 La direcci\u00f3n con errores se encuentra 24 bytes dentro de la regi\u00f3n liberada de 96 bytes [ffff888106a83f00, ffff888106a83f60) La direcci\u00f3n con errores pertenece a la p\u00e1gina f\u00edsica: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888106a83800 pfn:0x106a83 flags: 0x17ffffc0000000(node=0|zone=2|lastcpupid=0x1fffff) page_type: f5(slab) raw: 0017ffffc0000000 ffff888100053680 ffffea0004917200 0000000000000004 sin procesar: ffff888106a83800 0000000080200019 00000001f5000000 0000000000000000 p\u00e1gina volcada porque: kasan: se detect\u00f3 un acceso incorrecto Estado de la memoria alrededor de la direcci\u00f3n con errores: ffff888106a83e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc ffff888106a83e80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc \u0026gt;ffff888106a83f00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff888106a83f80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc ffff888106a84000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 == ...\"}],\"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: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},{\"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: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}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.18\",\"versionEndExcluding\":\"6.1.124\",\"matchCriteriaId\":\"FBF74D22-8ED5-4148-92BD-FFCDBB9D35CA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.70\",\"matchCriteriaId\":\"51E6CFF2-92AA-4936-95AB-2D068168A696\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.4\",\"matchCriteriaId\":\"04756810-D093-4B43-B1D9-CF5035968061\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"62567B3C-6CEE-46D0-BC2E-B3717FBF7D13\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/05b36b04d74a517d6675bf2f90829ff1ac7e28dc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6228f13f1996a4feb9b601d6644bf0bfe03671dd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a40de0330af4fb7bc6b354250c24f294f8b826a0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f8a5129e4a9fc3f6aa3f137513253b51b31b94d4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T20:49:59.647Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-56582\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-11T15:42:35.022378Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-11T15:42:36.415Z\"}}], \"cna\": {\"title\": \"btrfs: fix use-after-free in btrfs_encoded_read_endio()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"1881fba89bd5dcd364d2e1bf561912a90a11c21a\", \"lessThan\": \"a40de0330af4fb7bc6b354250c24f294f8b826a0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1881fba89bd5dcd364d2e1bf561912a90a11c21a\", \"lessThan\": \"6228f13f1996a4feb9b601d6644bf0bfe03671dd\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1881fba89bd5dcd364d2e1bf561912a90a11c21a\", \"lessThan\": \"f8a5129e4a9fc3f6aa3f137513253b51b31b94d4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1881fba89bd5dcd364d2e1bf561912a90a11c21a\", \"lessThan\": \"05b36b04d74a517d6675bf2f90829ff1ac7e28dc\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/btrfs/inode.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.18\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.18\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.124\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.70\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/btrfs/inode.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/a40de0330af4fb7bc6b354250c24f294f8b826a0\"}, {\"url\": \"https://git.kernel.org/stable/c/6228f13f1996a4feb9b601d6644bf0bfe03671dd\"}, {\"url\": \"https://git.kernel.org/stable/c/f8a5129e4a9fc3f6aa3f137513253b51b31b94d4\"}, {\"url\": \"https://git.kernel.org/stable/c/05b36b04d74a517d6675bf2f90829ff1ac7e28dc\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: fix use-after-free in btrfs_encoded_read_endio()\\n\\nShinichiro reported the following use-after free that sometimes is\\nhappening in our CI system when running fstests\u0027 btrfs/284 on a TCMU\\nrunner device:\\n\\n  BUG: KASAN: slab-use-after-free in lock_release+0x708/0x780\\n  Read of size 8 at addr ffff888106a83f18 by task kworker/u80:6/219\\n\\n  CPU: 8 UID: 0 PID: 219 Comm: kworker/u80:6 Not tainted 6.12.0-rc6-kts+ #15\\n  Hardware name: Supermicro Super Server/X11SPi-TF, BIOS 3.3 02/21/2020\\n  Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]\\n  Call Trace:\\n   \u003cTASK\u003e\\n   dump_stack_lvl+0x6e/0xa0\\n   ? lock_release+0x708/0x780\\n   print_report+0x174/0x505\\n   ? lock_release+0x708/0x780\\n   ? __virt_addr_valid+0x224/0x410\\n   ? lock_release+0x708/0x780\\n   kasan_report+0xda/0x1b0\\n   ? lock_release+0x708/0x780\\n   ? __wake_up+0x44/0x60\\n   lock_release+0x708/0x780\\n   ? __pfx_lock_release+0x10/0x10\\n   ? __pfx_do_raw_spin_lock+0x10/0x10\\n   ? lock_is_held_type+0x9a/0x110\\n   _raw_spin_unlock_irqrestore+0x1f/0x60\\n   __wake_up+0x44/0x60\\n   btrfs_encoded_read_endio+0x14b/0x190 [btrfs]\\n   btrfs_check_read_bio+0x8d9/0x1360 [btrfs]\\n   ? lock_release+0x1b0/0x780\\n   ? trace_lock_acquire+0x12f/0x1a0\\n   ? __pfx_btrfs_check_read_bio+0x10/0x10 [btrfs]\\n   ? process_one_work+0x7e3/0x1460\\n   ? lock_acquire+0x31/0xc0\\n   ? process_one_work+0x7e3/0x1460\\n   process_one_work+0x85c/0x1460\\n   ? __pfx_process_one_work+0x10/0x10\\n   ? assign_work+0x16c/0x240\\n   worker_thread+0x5e6/0xfc0\\n   ? __pfx_worker_thread+0x10/0x10\\n   kthread+0x2c3/0x3a0\\n   ? __pfx_kthread+0x10/0x10\\n   ret_from_fork+0x31/0x70\\n   ? __pfx_kthread+0x10/0x10\\n   ret_from_fork_asm+0x1a/0x30\\n   \u003c/TASK\u003e\\n\\n  Allocated by task 3661:\\n   kasan_save_stack+0x30/0x50\\n   kasan_save_track+0x14/0x30\\n   __kasan_kmalloc+0xaa/0xb0\\n   btrfs_encoded_read_regular_fill_pages+0x16c/0x6d0 [btrfs]\\n   send_extent_data+0xf0f/0x24a0 [btrfs]\\n   process_extent+0x48a/0x1830 [btrfs]\\n   changed_cb+0x178b/0x2ea0 [btrfs]\\n   btrfs_ioctl_send+0x3bf9/0x5c20 [btrfs]\\n   _btrfs_ioctl_send+0x117/0x330 [btrfs]\\n   btrfs_ioctl+0x184a/0x60a0 [btrfs]\\n   __x64_sys_ioctl+0x12e/0x1a0\\n   do_syscall_64+0x95/0x180\\n   entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n\\n  Freed by task 3661:\\n   kasan_save_stack+0x30/0x50\\n   kasan_save_track+0x14/0x30\\n   kasan_save_free_info+0x3b/0x70\\n   __kasan_slab_free+0x4f/0x70\\n   kfree+0x143/0x490\\n   btrfs_encoded_read_regular_fill_pages+0x531/0x6d0 [btrfs]\\n   send_extent_data+0xf0f/0x24a0 [btrfs]\\n   process_extent+0x48a/0x1830 [btrfs]\\n   changed_cb+0x178b/0x2ea0 [btrfs]\\n   btrfs_ioctl_send+0x3bf9/0x5c20 [btrfs]\\n   _btrfs_ioctl_send+0x117/0x330 [btrfs]\\n   btrfs_ioctl+0x184a/0x60a0 [btrfs]\\n   __x64_sys_ioctl+0x12e/0x1a0\\n   do_syscall_64+0x95/0x180\\n   entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n\\n  The buggy address belongs to the object at ffff888106a83f00\\n   which belongs to the cache kmalloc-rnd-07-96 of size 96\\n  The buggy address is located 24 bytes inside of\\n   freed 96-byte region [ffff888106a83f00, ffff888106a83f60)\\n\\n  The buggy address belongs to the physical page:\\n  page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888106a83800 pfn:0x106a83\\n  flags: 0x17ffffc0000000(node=0|zone=2|lastcpupid=0x1fffff)\\n  page_type: f5(slab)\\n  raw: 0017ffffc0000000 ffff888100053680 ffffea0004917200 0000000000000004\\n  raw: ffff888106a83800 0000000080200019 00000001f5000000 0000000000000000\\n  page dumped because: kasan: bad access detected\\n\\n  Memory state around the buggy address:\\n   ffff888106a83e00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\\n   ffff888106a83e80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\\n  \u003effff888106a83f00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\\n                              ^\\n   ffff888106a83f80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\\n   ffff888106a84000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\\n  ==================================================================\\n\\nFurther analyzing the trace and \\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.124\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.70\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.4\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13\", \"versionStartIncluding\": \"5.18\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:55:14.844Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-56582\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:55:14.844Z\", \"dateReserved\": \"2024-12-27T14:03:06.000Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-12-27T14:23:23.851Z\", \"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.