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

Vulnerability from cvelistv5 – Published: 2026-08-15 05:51 – Updated: 2026-08-18 06:56
VLAI
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
References
Impacted products
Vendor Product Version CPE status
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)
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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)
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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": [
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              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "version": "351df4b201157351c7d26bf12c3eeb9dbce98854",
              "versionType": "git"
            },
            {
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              "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",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-68460",
      "date": "2026-08-24",
      "epss": "0.00177",
      "percentile": "0.07216"
    },
    "microsoft_vex": {
      "current_release_date": "2026-08-23T14:53:16.000Z",
      "cve": "CVE-2026-68460",
      "id": "msrc_CVE-2026-68460",
      "initial_release_date": "2026-08-23T14:53:16.000Z",
      "product_status:known_not_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "f2fs: fix potential deadlock in f2fs_balance_fs()",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-68460.json",
      "version": "1"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-68460\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-08-15T06:18:22.117\",\"lastModified\":\"2026-08-18T07:16:52.383\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"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---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"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\",\"versions\":[{\"version\":\"351df4b201157351c7d26bf12c3eeb9dbce98854\",\"lessThan\":\"162d57d8eb8440ad2d90469bf2c116abb04a9d33\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"351df4b201157351c7d26bf12c3eeb9dbce98854\",\"lessThan\":\"f51db99287b5acf81513ece82a0c95eb5db008e3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"351df4b201157351c7d26bf12c3eeb9dbce98854\",\"lessThan\":\"e273116fbb6dfd7f027c0623e7c5109241be1919\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"351df4b201157351c7d26bf12c3eeb9dbce98854\",\"lessThan\":\"345c1d1ff751104ebdc32c145be80de566c5150f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"351df4b201157351c7d26bf12c3eeb9dbce98854\",\"lessThan\":\"44480f7e3f8369671452c0d262831c51aa5a9c20\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"351df4b201157351c7d26bf12c3eeb9dbce98854\",\"lessThan\":\"998536c96b6ad9d99cd85dea11452ab83dc7c88d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"351df4b201157351c7d26bf12c3eeb9dbce98854\",\"lessThan\":\"cf8b5937b7b258927ccca267995e13e76a07b38e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"351df4b201157351c7d26bf12c3eeb9dbce98854\",\"lessThan\":\"dd3114870771562036fdcf5abe813956f36d224d\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"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\",\"versions\":[{\"version\":\"3.8\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.8\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.261\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.212\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.178\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.145\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.96\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.39\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.5\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/162d57d8eb8440ad2d90469bf2c116abb04a9d33\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/345c1d1ff751104ebdc32c145be80de566c5150f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/44480f7e3f8369671452c0d262831c51aa5a9c20\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/998536c96b6ad9d99cd85dea11452ab83dc7c88d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cf8b5937b7b258927ccca267995e13e76a07b38e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dd3114870771562036fdcf5abe813956f36d224d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e273116fbb6dfd7f027c0623e7c5109241be1919\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f51db99287b5acf81513ece82a0c95eb5db008e3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-17T14:59:58+00:00",
      "cve": "CVE-2026-68460",
      "id": "CVE-2026-68460",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: f2fs: fix potential deadlock in f2fs_balance_fs()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68460.json",
      "version": "3"
    }
  }
}



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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.