{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-68460", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.395Z", "datePublished": "2026-08-15T05:51:20.463Z", "dateUpdated": "2026-08-18T06:56:06.773Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-18T06:56:06.773Z" }, "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---" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/f2fs/data.c", "fs/f2fs/f2fs.h", "fs/f2fs/segment.c" ], "versions": [ { "version": "351df4b201157351c7d26bf12c3eeb9dbce98854", "lessThan": "162d57d8eb8440ad2d90469bf2c116abb04a9d33", "status": "affected", "versionType": "git" }, { "version": "351df4b201157351c7d26bf12c3eeb9dbce98854", "lessThan": "f51db99287b5acf81513ece82a0c95eb5db008e3", "status": "affected", "versionType": "git" }, { "version": "351df4b201157351c7d26bf12c3eeb9dbce98854", "lessThan": "e273116fbb6dfd7f027c0623e7c5109241be1919", "status": "affected", "versionType": "git" }, { "version": "351df4b201157351c7d26bf12c3eeb9dbce98854", "lessThan": "345c1d1ff751104ebdc32c145be80de566c5150f", "status": "affected", "versionType": "git" }, { "version": "351df4b201157351c7d26bf12c3eeb9dbce98854", "lessThan": "44480f7e3f8369671452c0d262831c51aa5a9c20", "status": "affected", "versionType": "git" }, { "version": "351df4b201157351c7d26bf12c3eeb9dbce98854", "lessThan": "998536c96b6ad9d99cd85dea11452ab83dc7c88d", "status": "affected", "versionType": "git" }, { "version": "351df4b201157351c7d26bf12c3eeb9dbce98854", "lessThan": "cf8b5937b7b258927ccca267995e13e76a07b38e", "status": "affected", "versionType": "git" }, { "version": "351df4b201157351c7d26bf12c3eeb9dbce98854", "lessThan": "dd3114870771562036fdcf5abe813956f36d224d", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/f2fs/data.c", "fs/f2fs/f2fs.h", "fs/f2fs/segment.c" ], "versions": [ { "version": "3.8", "status": "affected" }, { "version": "0", "lessThan": "3.8", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.261", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.96", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.39", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "5.10.261" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "5.15.212" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "6.1.178" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "6.6.145" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "6.12.96" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "6.18.39" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "7.1.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "7.2" } ] } ] } ], "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" } } } }