GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2022-49068 (GCVE-0-2022-49068)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:54 – Updated: 2026-05-23 15:21
VLAI
Title
btrfs: release correct delalloc amount in direct IO write path
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: release correct delalloc amount in direct IO write path Running generic/406 causes the following WARNING in btrfs_destroy_inode() which tells there are outstanding extents left. In btrfs_get_blocks_direct_write(), we reserve a temporary outstanding extents with btrfs_delalloc_reserve_metadata() (or indirectly from btrfs_delalloc_reserve_space(()). We then release the outstanding extents with btrfs_delalloc_release_extents(). However, the "len" can be modified in the COW case, which releases fewer outstanding extents than expected. Fix it by calling btrfs_delalloc_release_extents() for the original length. To reproduce the warning, the filesystem should be 1 GiB. It's triggering a short-write, due to not being able to allocate a large extent and instead allocating a smaller one. WARNING: CPU: 0 PID: 757 at fs/btrfs/inode.c:8848 btrfs_destroy_inode+0x1e6/0x210 [btrfs] Modules linked in: btrfs blake2b_generic xor lzo_compress lzo_decompress raid6_pq zstd zstd_decompress zstd_compress xxhash zram zsmalloc CPU: 0 PID: 757 Comm: umount Not tainted 5.17.0-rc8+ #101 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS d55cb5a 04/01/2014 RIP: 0010:btrfs_destroy_inode+0x1e6/0x210 [btrfs] RSP: 0018:ffffc9000327bda8 EFLAGS: 00010206 RAX: 0000000000000000 RBX: ffff888100548b78 RCX: 0000000000000000 RDX: 0000000000026900 RSI: 0000000000000000 RDI: ffff888100548b78 RBP: ffff888100548940 R08: 0000000000000000 R09: ffff88810b48aba8 R10: 0000000000000001 R11: ffff8881004eb240 R12: ffff88810b48a800 R13: ffff88810b48ec08 R14: ffff88810b48ed00 R15: ffff888100490c68 FS: 00007f8549ea0b80(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f854a09e733 CR3: 000000010a2e9003 CR4: 0000000000370eb0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> destroy_inode+0x33/0x70 dispose_list+0x43/0x60 evict_inodes+0x161/0x1b0 generic_shutdown_super+0x2d/0x110 kill_anon_super+0xf/0x20 btrfs_kill_super+0xd/0x20 [btrfs] deactivate_locked_super+0x27/0x90 cleanup_mnt+0x12c/0x180 task_work_run+0x54/0x80 exit_to_user_mode_prepare+0x152/0x160 syscall_exit_to_user_mode+0x12/0x30 do_syscall_64+0x42/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f854a000fb7
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 5afd80c393f4e87451f14eefb7f2f24daf434e06 , < 07cacfd9d9dc134557ac8866c73d570a59b3d1f3 (git)
Affected: f0bfa76a11e93d0fe2c896fcb566568c5e8b5d3f , < a04d37ddfe4be431b9e52e8504490376ab0a39a4 (git)
Affected: f0bfa76a11e93d0fe2c896fcb566568c5e8b5d3f , < 6d82ad13c4110e73c7b0392f00534a1502a1b520 (git)
Affected: 96f1be29492d9e2fb97bb27f824478ab8cd3ab86 (git)
Affected: 5.15.27 , < 5.15.35 (semver)
Affected: 5.16.13 , < 5.17 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 5.15.35 , ≤ 5.15.* (semver)
Unaffected: 5.17.4 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/inode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "07cacfd9d9dc134557ac8866c73d570a59b3d1f3",
              "status": "affected",
              "version": "5afd80c393f4e87451f14eefb7f2f24daf434e06",
              "versionType": "git"
            },
            {
              "lessThan": "a04d37ddfe4be431b9e52e8504490376ab0a39a4",
              "status": "affected",
              "version": "f0bfa76a11e93d0fe2c896fcb566568c5e8b5d3f",
              "versionType": "git"
            },
            {
              "lessThan": "6d82ad13c4110e73c7b0392f00534a1502a1b520",
              "status": "affected",
              "version": "f0bfa76a11e93d0fe2c896fcb566568c5e8b5d3f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "96f1be29492d9e2fb97bb27f824478ab8cd3ab86",
              "versionType": "git"
            },
            {
              "lessThan": "5.15.35",
              "status": "affected",
              "version": "5.15.27",
              "versionType": "semver"
            },
            {
              "lessThan": "5.17",
              "status": "affected",
              "version": "5.16.13",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/inode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.35",
                  "versionStartIncluding": "5.15.27",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.4",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.16.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: release correct delalloc amount in direct IO write path\n\nRunning generic/406 causes the following WARNING in btrfs_destroy_inode()\nwhich tells there are outstanding extents left.\n\nIn btrfs_get_blocks_direct_write(), we reserve a temporary outstanding\nextents with btrfs_delalloc_reserve_metadata() (or indirectly from\nbtrfs_delalloc_reserve_space(()). We then release the outstanding extents\nwith btrfs_delalloc_release_extents(). However, the \"len\" can be modified\nin the COW case, which releases fewer outstanding extents than expected.\n\nFix it by calling btrfs_delalloc_release_extents() for the original length.\n\nTo reproduce the warning, the filesystem should be 1 GiB.  It\u0027s\ntriggering a short-write, due to not being able to allocate a large\nextent and instead allocating a smaller one.\n\n  WARNING: CPU: 0 PID: 757 at fs/btrfs/inode.c:8848 btrfs_destroy_inode+0x1e6/0x210 [btrfs]\n  Modules linked in: btrfs blake2b_generic xor lzo_compress\n  lzo_decompress raid6_pq zstd zstd_decompress zstd_compress xxhash zram\n  zsmalloc\n  CPU: 0 PID: 757 Comm: umount Not tainted 5.17.0-rc8+ #101\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS d55cb5a 04/01/2014\n  RIP: 0010:btrfs_destroy_inode+0x1e6/0x210 [btrfs]\n  RSP: 0018:ffffc9000327bda8 EFLAGS: 00010206\n  RAX: 0000000000000000 RBX: ffff888100548b78 RCX: 0000000000000000\n  RDX: 0000000000026900 RSI: 0000000000000000 RDI: ffff888100548b78\n  RBP: ffff888100548940 R08: 0000000000000000 R09: ffff88810b48aba8\n  R10: 0000000000000001 R11: ffff8881004eb240 R12: ffff88810b48a800\n  R13: ffff88810b48ec08 R14: ffff88810b48ed00 R15: ffff888100490c68\n  FS:  00007f8549ea0b80(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000\n  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  CR2: 00007f854a09e733 CR3: 000000010a2e9003 CR4: 0000000000370eb0\n  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n  Call Trace:\n   \u003cTASK\u003e\n   destroy_inode+0x33/0x70\n   dispose_list+0x43/0x60\n   evict_inodes+0x161/0x1b0\n   generic_shutdown_super+0x2d/0x110\n   kill_anon_super+0xf/0x20\n   btrfs_kill_super+0xd/0x20 [btrfs]\n   deactivate_locked_super+0x27/0x90\n   cleanup_mnt+0x12c/0x180\n   task_work_run+0x54/0x80\n   exit_to_user_mode_prepare+0x152/0x160\n   syscall_exit_to_user_mode+0x12/0x30\n   do_syscall_64+0x42/0x80\n   entry_SYSCALL_64_after_hwframe+0x44/0xae\n   RIP: 0033:0x7f854a000fb7"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:21:30.120Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/07cacfd9d9dc134557ac8866c73d570a59b3d1f3"
        },
        {
          "url": "https://git.kernel.org/stable/c/a04d37ddfe4be431b9e52e8504490376ab0a39a4"
        },
        {
          "url": "https://git.kernel.org/stable/c/6d82ad13c4110e73c7b0392f00534a1502a1b520"
        }
      ],
      "title": "btrfs: release correct delalloc amount in direct IO write path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49068",
    "datePublished": "2025-02-26T01:54:35.340Z",
    "dateReserved": "2025-02-26T01:49:39.244Z",
    "dateUpdated": "2026-05-23T15:21:30.120Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49068",
      "date": "2026-09-17",
      "epss": "0.00253",
      "percentile": "0.1706"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49068\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:00:44.027\",\"lastModified\":\"2026-06-17T05:16:59.537\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: release correct delalloc amount in direct IO write path\\n\\nRunning generic/406 causes the following WARNING in btrfs_destroy_inode()\\nwhich tells there are outstanding extents left.\\n\\nIn btrfs_get_blocks_direct_write(), we reserve a temporary outstanding\\nextents with btrfs_delalloc_reserve_metadata() (or indirectly from\\nbtrfs_delalloc_reserve_space(()). We then release the outstanding extents\\nwith btrfs_delalloc_release_extents(). However, the \\\"len\\\" can be modified\\nin the COW case, which releases fewer outstanding extents than expected.\\n\\nFix it by calling btrfs_delalloc_release_extents() for the original length.\\n\\nTo reproduce the warning, the filesystem should be 1 GiB.  It\u0027s\\ntriggering a short-write, due to not being able to allocate a large\\nextent and instead allocating a smaller one.\\n\\n  WARNING: CPU: 0 PID: 757 at fs/btrfs/inode.c:8848 btrfs_destroy_inode+0x1e6/0x210 [btrfs]\\n  Modules linked in: btrfs blake2b_generic xor lzo_compress\\n  lzo_decompress raid6_pq zstd zstd_decompress zstd_compress xxhash zram\\n  zsmalloc\\n  CPU: 0 PID: 757 Comm: umount Not tainted 5.17.0-rc8+ #101\\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS d55cb5a 04/01/2014\\n  RIP: 0010:btrfs_destroy_inode+0x1e6/0x210 [btrfs]\\n  RSP: 0018:ffffc9000327bda8 EFLAGS: 00010206\\n  RAX: 0000000000000000 RBX: ffff888100548b78 RCX: 0000000000000000\\n  RDX: 0000000000026900 RSI: 0000000000000000 RDI: ffff888100548b78\\n  RBP: ffff888100548940 R08: 0000000000000000 R09: ffff88810b48aba8\\n  R10: 0000000000000001 R11: ffff8881004eb240 R12: ffff88810b48a800\\n  R13: ffff88810b48ec08 R14: ffff88810b48ed00 R15: ffff888100490c68\\n  FS:  00007f8549ea0b80(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000\\n  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n  CR2: 00007f854a09e733 CR3: 000000010a2e9003 CR4: 0000000000370eb0\\n  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n  Call Trace:\\n   \u003cTASK\u003e\\n   destroy_inode+0x33/0x70\\n   dispose_list+0x43/0x60\\n   evict_inodes+0x161/0x1b0\\n   generic_shutdown_super+0x2d/0x110\\n   kill_anon_super+0xf/0x20\\n   btrfs_kill_super+0xd/0x20 [btrfs]\\n   deactivate_locked_super+0x27/0x90\\n   cleanup_mnt+0x12c/0x180\\n   task_work_run+0x54/0x80\\n   exit_to_user_mode_prepare+0x152/0x160\\n   syscall_exit_to_user_mode+0x12/0x30\\n   do_syscall_64+0x42/0x80\\n   entry_SYSCALL_64_after_hwframe+0x44/0xae\\n   RIP: 0033:0x7f854a000fb7\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: libera la cantidad correcta de delalloc en la ruta de escritura de E/S directa. La ejecuci\u00f3n de generic/406 provoca la siguiente ADVERTENCIA en btrfs_destroy_inode() que indica que quedan extensiones pendientes. En btrfs_get_blocks_direct_write(), reservamos extensiones pendientes temporalmente con btrfs_delalloc_reserve_metadata() (o indirectamente desde btrfs_delalloc_reserve_space()). Luego, liberamos las extensiones pendientes con btrfs_delalloc_release_extents(). Sin embargo, la \\\"longitud\\\" se puede modificar en el caso de COW, que libera menos extensiones pendientes de lo esperado. Arr\u00e9glelo llamando a btrfs_delalloc_release_extents() para la longitud original. Para reproducir la advertencia, el sistema de archivos debe ser de 1 GiB. Est\u00e1 activando una escritura corta, debido a que no se puede asignar una extensi\u00f3n grande y, en su lugar, se asigna una m\u00e1s peque\u00f1a. ADVERTENCIA: CPU: 0 PID: 757 en fs/btrfs/inode.c:8848 btrfs_destroy_inode+0x1e6/0x210 [btrfs] M\u00f3dulos vinculados en: btrfs blake2b_generic xor lzo_compress lzo_decompress raid6_pq zstd zstd_decompress zstd_compress xxhash zram zsmalloc CPU: 0 PID: 757 Comm: umount No contaminado 5.17.0-rc8+ #101 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS d55cb5a 01/04/2014 RIP: 0010:btrfs_destroy_inode+0x1e6/0x210 [btrfs] RSP: 0018:ffffc9000327bda8 EFLAGS: 00010206 RAX: 000000000000000 RBX: ffff888100548b78 RCX: 0000000000000000 RDX: 0000000000026900 RSI: 0000000000000000 RDI: ffff888100548b78 RBP: ffff888100548940 R08: 0000000000000000 R09: ffff88810b48aba8 R10: 0000000000000001 R11: ffff8881004eb240 R12: ffff88810b48a800 R13: ffff88810b48ec08 R14: ffff88810b48ed00 R15: ffff888100490c68 FS: 00007f8549ea0b80(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f854a09e733 CR3: 000000010a2e9003 CR4: 0000000000370eb0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Seguimiento de llamadas:  destroy_inode+0x33/0x70 dispose_list+0x43/0x60 evict_inodes+0x161/0x1b0 generic_shutdown_super+0x2d/0x110 kill_anon_super+0xf/0x20 btrfs_kill_super+0xd/0x20 [btrfs] deactivate_locked_super+0x27/0x90 cleanup_mnt+0x12c/0x180 task_work_run+0x54/0x80 exit_to_user_mode_prepare+0x152/0x160 syscall_exit_to_user_mode+0x12/0x30 do_syscall_64+0x42/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f854a000fb7\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/btrfs/inode.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5afd80c393f4e87451f14eefb7f2f24daf434e06\",\"lessThan\":\"07cacfd9d9dc134557ac8866c73d570a59b3d1f3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f0bfa76a11e93d0fe2c896fcb566568c5e8b5d3f\",\"lessThan\":\"a04d37ddfe4be431b9e52e8504490376ab0a39a4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f0bfa76a11e93d0fe2c896fcb566568c5e8b5d3f\",\"lessThan\":\"6d82ad13c4110e73c7b0392f00534a1502a1b520\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"96f1be29492d9e2fb97bb27f824478ab8cd3ab86\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5.15.27\",\"lessThan\":\"5.15.35\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.16.13\",\"lessThan\":\"5.17\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/btrfs/inode.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.17\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.17\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.35\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.17.4\",\"lessThanOrEqual\":\"5.17.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.18\",\"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}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.15.27\",\"versionEndExcluding\":\"5.15.35\",\"matchCriteriaId\":\"4960A935-FD5B-4178-93FD-54F8B8F87E05\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16.13\",\"versionEndExcluding\":\"5.17.4\",\"matchCriteriaId\":\"38DDBA33-1800-441A-9B01-A0A816DFB0C4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"6AD94161-84BB-42E6-9882-4FC0C42E9FC1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"7AB06DDF-3C2B-416D-B448-E990D8FF67A9\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/07cacfd9d9dc134557ac8866c73d570a59b3d1f3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6d82ad13c4110e73c7b0392f00534a1502a1b520\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a04d37ddfe4be431b9e52e8504490376ab0a39a4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T20:55:23+00:00",
      "cve": "CVE-2022-49068",
      "id": "CVE-2022-49068",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "232",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: btrfs: release correct delalloc amount in direct IO write path",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49068.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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

Sightings

Author Source Type Date Other

Nomenclature

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


Detection rules are retrieved from Rulezet.


Related by attack behaviour

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