{"api_version":"1","generated_at":"2026-08-18T11:35:09+00:00","cve":"CVE-2026-68460","urls":{"html":"https://cve.report/CVE-2026-68460","api":"https://cve.report/api/cve/CVE-2026-68460.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-68460","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68460"},"summary":{"title":"f2fs: fix potential deadlock in f2fs_balance_fs()","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---","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:18:22","updated_at":"2026-08-18 07:16:52"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/e273116fbb6dfd7f027c0623e7c5109241be1919","name":"https://git.kernel.org/stable/c/e273116fbb6dfd7f027c0623e7c5109241be1919","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/345c1d1ff751104ebdc32c145be80de566c5150f","name":"https://git.kernel.org/stable/c/345c1d1ff751104ebdc32c145be80de566c5150f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dd3114870771562036fdcf5abe813956f36d224d","name":"https://git.kernel.org/stable/c/dd3114870771562036fdcf5abe813956f36d224d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cf8b5937b7b258927ccca267995e13e76a07b38e","name":"https://git.kernel.org/stable/c/cf8b5937b7b258927ccca267995e13e76a07b38e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f51db99287b5acf81513ece82a0c95eb5db008e3","name":"https://git.kernel.org/stable/c/f51db99287b5acf81513ece82a0c95eb5db008e3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/162d57d8eb8440ad2d90469bf2c116abb04a9d33","name":"https://git.kernel.org/stable/c/162d57d8eb8440ad2d90469bf2c116abb04a9d33","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/998536c96b6ad9d99cd85dea11452ab83dc7c88d","name":"https://git.kernel.org/stable/c/998536c96b6ad9d99cd85dea11452ab83dc7c88d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/44480f7e3f8369671452c0d262831c51aa5a9c20","name":"https://git.kernel.org/stable/c/44480f7e3f8369671452c0d262831c51aa5a9c20","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68460","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68460","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 351df4b201157351c7d26bf12c3eeb9dbce98854 162d57d8eb8440ad2d90469bf2c116abb04a9d33 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 351df4b201157351c7d26bf12c3eeb9dbce98854 f51db99287b5acf81513ece82a0c95eb5db008e3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 351df4b201157351c7d26bf12c3eeb9dbce98854 e273116fbb6dfd7f027c0623e7c5109241be1919 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 351df4b201157351c7d26bf12c3eeb9dbce98854 345c1d1ff751104ebdc32c145be80de566c5150f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 351df4b201157351c7d26bf12c3eeb9dbce98854 44480f7e3f8369671452c0d262831c51aa5a9c20 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 351df4b201157351c7d26bf12c3eeb9dbce98854 998536c96b6ad9d99cd85dea11452ab83dc7c88d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 351df4b201157351c7d26bf12c3eeb9dbce98854 cf8b5937b7b258927ccca267995e13e76a07b38e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 351df4b201157351c7d26bf12c3eeb9dbce98854 dd3114870771562036fdcf5abe813956f36d224d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.8","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.8 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.261 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.212 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.96 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.39 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"68460","cve":"CVE-2026-68460","epss":"0.001760000","percentile":"0.074660000","score_date":"2026-08-17","updated_at":"2026-08-18 00:11:47"},"legacy_qids":[]},"source_records":{"cve_program":{"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 > /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---"}],"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"},"nvd":{"publishedDate":"2026-08-15 06:18:22","lastModifiedDate":"2026-08-18 07:16:52","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"68460","Ordinal":"1","Title":"f2fs: fix potential deadlock in f2fs_balance_fs()","CVE":"CVE-2026-68460","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"68460","Ordinal":"1","NoteData":"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---","Type":"Description","Title":"f2fs: fix potential deadlock in f2fs_balance_fs()"}]}}}