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EUVD-2026-354824

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 08:26

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

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{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T08:26:23.693603+00:00",
  "id": "EUVD-2026-354824"
}

CVE-2026-68460 (GCVE-0-2026-68460)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:51 – Updated: 2026-08-18 06:56

Title

f2fs: fix potential deadlock in f2fs_balance_fs()

Summary

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix potential deadlock in f2fs_balance_fs() When the f2fs filesystem space is nearly exhausted, we encounter deadlock issues as below: INFO: task A:1890 blocked for more than 120 seconds. Tainted: G O 6.12.41-g3fe07ddf05ab #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:A state:D stack:0 pid:1890 tgid:1626 ppid:1153 flags:0x00000204 Call trace: __switch_to+0xf4/0x158 __schedule+0x27c/0x908 schedule+0x3c/0x118 io_schedule+0x44/0x68 folio_wait_bit_common+0x174/0x370 folio_wait_bit+0x20/0x38 folio_wait_writeback+0x54/0xc8 truncate_inode_partial_folio+0x70/0x1e0 truncate_inode_pages_range+0x1b0/0x450 truncate_pagecache+0x54/0x88 f2fs_file_write_iter+0x3e8/0xb80 do_iter_readv_writev+0xf0/0x1e0 vfs_writev+0x138/0x2c8 do_writev+0x88/0x130 __arm64_sys_writev+0x28/0x40 invoke_syscall+0x50/0x120 el0_svc_common.constprop.0+0xc8/0xf0 do_el0_svc+0x24/0x38 el0_svc+0x30/0xf8 el0t_64_sync_handler+0x120/0x130 el0t_64_sync+0x190/0x198 INFO: task kworker/u8:11:2680853 blocked for more than 120 seconds. Tainted: G O 6.12.41-g3fe07ddf05ab #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:11 state:D stack:0 pid:2680853 tgid:2680853 ppid:2 flags:0x00000208 Workqueue: writeback wb_workfn (flush-254:0) Call trace: __switch_to+0xf4/0x158 __schedule+0x27c/0x908 schedule+0x3c/0x118 io_schedule+0x44/0x68 folio_wait_bit_common+0x174/0x370 __filemap_get_folio+0x214/0x348 pagecache_get_page+0x20/0x70 f2fs_get_read_data_page+0x150/0x3e8 f2fs_get_lock_data_page+0x2c/0x160 move_data_page+0x50/0x478 do_garbage_collect+0xd38/0x1528 f2fs_gc+0x240/0x7e0 f2fs_balance_fs+0x1a0/0x208 f2fs_write_single_data_page+0x6e4/0x730 f2fs_write_cache_pages+0x378/0x9b0 f2fs_write_data_pages+0x2e4/0x388 do_writepages+0x8c/0x2c8 __writeback_single_inode+0x4c/0x498 writeback_sb_inodes+0x234/0x4a8 __writeback_inodes_wb+0x58/0x118 wb_writeback+0x2f8/0x3c0 wb_workfn+0x2c4/0x508 process_one_work+0x180/0x408 worker_thread+0x258/0x368 kthread+0x118/0x128 ret_from_fork+0x10/0x200 INFO: task kworker/u8:8:2641297 blocked for more than 120 seconds. Tainted: G O 6.12.41-g3fe07ddf05ab #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:8 state:D stack:0 pid:2641297 tgid:2641297 ppid:2 flags:0x00000208 Workqueue: writeback wb_workfn (flush-254:0) Call trace: __switch_to+0xf4/0x158 __schedule+0x27c/0x908 rt_mutex_schedule+0x30/0x60 __rt_mutex_slowlock_locked.constprop.0+0x460/0x8a8 rwbase_write_lock+0x24c/0x378 down_write+0x1c/0x30 f2fs_balance_fs+0x184/0x208 f2fs_write_inode+0xf4/0x328 __writeback_single_inode+0x370/0x498 writeback_sb_inodes+0x234/0x4a8 __writeback_inodes_wb+0x58/0x118 wb_writeback+0x2f8/0x3c0 wb_workfn+0x2c4/0x508 process_one_work+0x180/0x408 worker_thread+0x258/0x368 kthread+0x118/0x128 ret_from_fork+0x10/0x20 INFO: task B:1902 blocked for more than 120 seconds. Tainted: G O 6.12.41-g3fe07ddf05ab #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:B state:D stack:0 pid:1902 tgid:1626 ppid:1153 flags:0x0000020c Call trace: __switch_to+0xf4/0x158 __schedule+0x27c/0x908 rt_mutex_schedule+0x30/0x60 __rt_mutex_slowlock_locked.constprop.0+0x460/0x8a8 rwbase_write_lock+0x24c/0x378 down_write+0x1c/0x30 f2fs_balance_fs+0x184/0x208 f2fs_map_blocks+0x94c/0x1110 f2fs_file_write_iter+0x228/0xb80 do_iter_readv_writev+0xf0/0x1e0 vfs_writev+0x138/0x2c8 do_writev+0x88/0x130 __arm64_sys_writev+0x28/0x40 invoke_syscall+0x50/0x120 el0_svc_common.constprop.0+0xc8/0xf0 do_el0_svc+0x24/0x38 el0_svc+0x30/0xf8 el0t_64_sync_handler+0x120/0x130 el0t_64_sync+0x190/0x198 INFO: task sync:2769849 blocked for more than 120 seconds. Tainted: G ---truncated---

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

References

8 references

URL	Tags
https://git.kernel.org/stable/c/162d57d8eb8440ad2…
https://git.kernel.org/stable/c/f51db99287b5acf81…
https://git.kernel.org/stable/c/e273116fbb6dfd7f0…
https://git.kernel.org/stable/c/345c1d1ff751104eb…
https://git.kernel.org/stable/c/44480f7e3f8369671…
https://git.kernel.org/stable/c/998536c96b6ad9d99…
https://git.kernel.org/stable/c/cf8b5937b7b258927…
https://git.kernel.org/stable/c/dd311487077156203…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 351df4b201157351c7d26bf12c3eeb9dbce98854 , < 162d57d8eb8440ad2d90469bf2c116abb04a9d33 (git) Affected: 351df4b201157351c7d26bf12c3eeb9dbce98854 , < f51db99287b5acf81513ece82a0c95eb5db008e3 (git) Affected: 351df4b201157351c7d26bf12c3eeb9dbce98854 , < e273116fbb6dfd7f027c0623e7c5109241be1919 (git) Affected: 351df4b201157351c7d26bf12c3eeb9dbce98854 , < 345c1d1ff751104ebdc32c145be80de566c5150f (git) Affected: 351df4b201157351c7d26bf12c3eeb9dbce98854 , < 44480f7e3f8369671452c0d262831c51aa5a9c20 (git) Affected: 351df4b201157351c7d26bf12c3eeb9dbce98854 , < 998536c96b6ad9d99cd85dea11452ab83dc7c88d (git) Affected: 351df4b201157351c7d26bf12c3eeb9dbce98854 , < cf8b5937b7b258927ccca267995e13e76a07b38e (git) Affected: 351df4b201157351c7d26bf12c3eeb9dbce98854 , < dd3114870771562036fdcf5abe813956f36d224d (git)
Linux	Linux	Affected: 3.8 Unaffected: 0 , < 3.8 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/f2fs/data.c",
            "fs/f2fs/f2fs.h",
            "fs/f2fs/segment.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "162d57d8eb8440ad2d90469bf2c116abb04a9d33",
              "status": "affected",
              "version": "351df4b201157351c7d26bf12c3eeb9dbce98854",
              "versionType": "git"
            },
            {
              "lessThan": "f51db99287b5acf81513ece82a0c95eb5db008e3",
              "status": "affected",
              "version": "351df4b201157351c7d26bf12c3eeb9dbce98854",
              "versionType": "git"
            },
            {
              "lessThan": "e273116fbb6dfd7f027c0623e7c5109241be1919",
              "status": "affected",
              "version": "351df4b201157351c7d26bf12c3eeb9dbce98854",
              "versionType": "git"
            },
            {
              "lessThan": "345c1d1ff751104ebdc32c145be80de566c5150f",
              "status": "affected",
              "version": "351df4b201157351c7d26bf12c3eeb9dbce98854",
              "versionType": "git"
            },
            {
              "lessThan": "44480f7e3f8369671452c0d262831c51aa5a9c20",
              "status": "affected",
              "version": "351df4b201157351c7d26bf12c3eeb9dbce98854",
              "versionType": "git"
            },
            {
              "lessThan": "998536c96b6ad9d99cd85dea11452ab83dc7c88d",
              "status": "affected",
              "version": "351df4b201157351c7d26bf12c3eeb9dbce98854",
              "versionType": "git"
            },
            {
              "lessThan": "cf8b5937b7b258927ccca267995e13e76a07b38e",
              "status": "affected",
              "version": "351df4b201157351c7d26bf12c3eeb9dbce98854",
              "versionType": "git"
            },
            {
              "lessThan": "dd3114870771562036fdcf5abe813956f36d224d",
              "status": "affected",
              "version": "351df4b201157351c7d26bf12c3eeb9dbce98854",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/f2fs/data.c",
            "fs/f2fs/f2fs.h",
            "fs/f2fs/segment.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.8"
            },
            {
              "lessThan": "3.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.96",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.39",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "3.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix potential deadlock in f2fs_balance_fs()\n\nWhen the f2fs filesystem space is nearly exhausted, we encounter deadlock\nissues as below:\n\nINFO: task A:1890 blocked for more than 120 seconds.\n      Tainted: G           O       6.12.41-g3fe07ddf05ab #1\n\"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\ntask:A    state:D stack:0     pid:1890  tgid:1626  ppid:1153   flags:0x00000204\nCall trace:\n __switch_to+0xf4/0x158\n __schedule+0x27c/0x908\n schedule+0x3c/0x118\n io_schedule+0x44/0x68\n folio_wait_bit_common+0x174/0x370\n folio_wait_bit+0x20/0x38\n folio_wait_writeback+0x54/0xc8\n truncate_inode_partial_folio+0x70/0x1e0\n truncate_inode_pages_range+0x1b0/0x450\n truncate_pagecache+0x54/0x88\n f2fs_file_write_iter+0x3e8/0xb80\n do_iter_readv_writev+0xf0/0x1e0\n vfs_writev+0x138/0x2c8\n do_writev+0x88/0x130\n __arm64_sys_writev+0x28/0x40\n invoke_syscall+0x50/0x120\n el0_svc_common.constprop.0+0xc8/0xf0\n do_el0_svc+0x24/0x38\n el0_svc+0x30/0xf8\n el0t_64_sync_handler+0x120/0x130\n el0t_64_sync+0x190/0x198\n\nINFO: task kworker/u8:11:2680853 blocked for more than 120 seconds.\n      Tainted: G           O       6.12.41-g3fe07ddf05ab #1\n\"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\ntask:kworker/u8:11   state:D stack:0     pid:2680853 tgid:2680853 ppid:2      flags:0x00000208\nWorkqueue: writeback wb_workfn (flush-254:0)\nCall trace:\n __switch_to+0xf4/0x158\n __schedule+0x27c/0x908\n schedule+0x3c/0x118\n io_schedule+0x44/0x68\n folio_wait_bit_common+0x174/0x370\n __filemap_get_folio+0x214/0x348\n pagecache_get_page+0x20/0x70\n f2fs_get_read_data_page+0x150/0x3e8\n f2fs_get_lock_data_page+0x2c/0x160\n move_data_page+0x50/0x478\n do_garbage_collect+0xd38/0x1528\n f2fs_gc+0x240/0x7e0\n f2fs_balance_fs+0x1a0/0x208\n f2fs_write_single_data_page+0x6e4/0x730\n f2fs_write_cache_pages+0x378/0x9b0\n f2fs_write_data_pages+0x2e4/0x388\n do_writepages+0x8c/0x2c8\n __writeback_single_inode+0x4c/0x498\n writeback_sb_inodes+0x234/0x4a8\n __writeback_inodes_wb+0x58/0x118\n wb_writeback+0x2f8/0x3c0\n wb_workfn+0x2c4/0x508\n process_one_work+0x180/0x408\n worker_thread+0x258/0x368\n kthread+0x118/0x128\n ret_from_fork+0x10/0x200\n\nINFO: task kworker/u8:8:2641297 blocked for more than 120 seconds.\n      Tainted: G           O       6.12.41-g3fe07ddf05ab #1\n\"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\ntask:kworker/u8:8    state:D stack:0     pid:2641297 tgid:2641297 ppid:2      flags:0x00000208\nWorkqueue: writeback wb_workfn (flush-254:0)\nCall trace:\n __switch_to+0xf4/0x158\n __schedule+0x27c/0x908\n rt_mutex_schedule+0x30/0x60\n __rt_mutex_slowlock_locked.constprop.0+0x460/0x8a8\n rwbase_write_lock+0x24c/0x378\n down_write+0x1c/0x30\n f2fs_balance_fs+0x184/0x208\n f2fs_write_inode+0xf4/0x328\n __writeback_single_inode+0x370/0x498\n writeback_sb_inodes+0x234/0x4a8\n __writeback_inodes_wb+0x58/0x118\n wb_writeback+0x2f8/0x3c0\n wb_workfn+0x2c4/0x508\n process_one_work+0x180/0x408\n worker_thread+0x258/0x368\n kthread+0x118/0x128\n ret_from_fork+0x10/0x20\n\nINFO: task B:1902 blocked for more than 120 seconds.\n      Tainted: G           O       6.12.41-g3fe07ddf05ab #1\n\"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\ntask:B     state:D stack:0     pid:1902  tgid:1626  ppid:1153   flags:0x0000020c\nCall trace:\n __switch_to+0xf4/0x158\n __schedule+0x27c/0x908\n rt_mutex_schedule+0x30/0x60\n __rt_mutex_slowlock_locked.constprop.0+0x460/0x8a8\n rwbase_write_lock+0x24c/0x378\n down_write+0x1c/0x30\n f2fs_balance_fs+0x184/0x208\n f2fs_map_blocks+0x94c/0x1110\n f2fs_file_write_iter+0x228/0xb80\n do_iter_readv_writev+0xf0/0x1e0\n vfs_writev+0x138/0x2c8\n do_writev+0x88/0x130\n __arm64_sys_writev+0x28/0x40\n invoke_syscall+0x50/0x120\n el0_svc_common.constprop.0+0xc8/0xf0\n do_el0_svc+0x24/0x38\n el0_svc+0x30/0xf8\n el0t_64_sync_handler+0x120/0x130\n el0t_64_sync+0x190/0x198\n\nINFO: task sync:2769849 blocked for more than 120 seconds.\n      Tainted: G     \n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-18T06:56:06.773Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/162d57d8eb8440ad2d90469bf2c116abb04a9d33"
        },
        {
          "url": "https://git.kernel.org/stable/c/f51db99287b5acf81513ece82a0c95eb5db008e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/e273116fbb6dfd7f027c0623e7c5109241be1919"
        },
        {
          "url": "https://git.kernel.org/stable/c/345c1d1ff751104ebdc32c145be80de566c5150f"
        },
        {
          "url": "https://git.kernel.org/stable/c/44480f7e3f8369671452c0d262831c51aa5a9c20"
        },
        {
          "url": "https://git.kernel.org/stable/c/998536c96b6ad9d99cd85dea11452ab83dc7c88d"
        },
        {
          "url": "https://git.kernel.org/stable/c/cf8b5937b7b258927ccca267995e13e76a07b38e"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd3114870771562036fdcf5abe813956f36d224d"
        }
      ],
      "title": "f2fs: fix potential deadlock in f2fs_balance_fs()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68460",
    "datePublished": "2026-08-15T05:51:20.463Z",
    "dateReserved": "2026-07-30T09:28:09.395Z",
    "dateUpdated": "2026-08-18T06:56:06.773Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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EUVD-2026-354824

CVE-2026-68460 (GCVE-0-2026-68460)

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