{"id":"CVE-2026-68460","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-68460","generatedAt":"2026-10-28T09:26:28.124Z","title":"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…","description":"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 > /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 > /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 > /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 > /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---","published":"2026-08-15T06:18:22.000Z","lastModified":"2026-08-18T07:16:52.000Z","status":"Received","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":null,"cwe":[],"affected":[],"epss":{"score":0.0022,"percentile":0.12391,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"unknown","text":"Not yet scored. NVD analysis is pending; check back once CVSS and EPSS values are published."},"changes":[],"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"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68460","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}