{"id":"CVE-2024-56586","state":"PUBLISHED","title":"f2fs: fix f2fs_bug_on when uninstalling filesystem call f2fs_evict_inode.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix f2fs_bug_on when uninstalling filesystem call f2fs_evict_inode.\n\ncreating a large files during checkpoint disable until it runs out of\nspace and then delete it, then remount to enable checkpoint again, and\nthen unmount the filesystem triggers the f2fs_bug_on as below:\n\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/inode.c:896!\nCPU: 2 UID: 0 PID: 1286 Comm: umount Not tainted 6.11.0-rc7-dirty #360\nOops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\nRIP: 0010:f2fs_evict_inode+0x58c/0x610\nCall Trace:\n __die_body+0x15/0x60\n die+0x33/0x50\n do_trap+0x10a/0x120\n f2fs_evict_inode+0x58c/0x610\n do_error_trap+0x60/0x80\n f2fs_evict_inode+0x58c/0x610\n exc_invalid_op+0x53/0x60\n f2fs_evict_inode+0x58c/0x610\n asm_exc_invalid_op+0x16/0x20\n f2fs_evict_inode+0x58c/0x610\n evict+0x101/0x260\n dispose_list+0x30/0x50\n evict_inodes+0x140/0x190\n generic_shutdown_super+0x2f/0x150\n kill_block_super+0x11/0x40\n kill_f2fs_super+0x7d/0x140\n deactivate_locked_super+0x2a/0x70\n cleanup_mnt+0xb3/0x140\n task_work_run+0x61/0x90\n\nThe root cause is: creating large files during disable checkpoint\nperiod results in not enough free segments, so when writing back root\ninode will failed in f2fs_enable_checkpoint. When umount the file\nsystem after enabling checkpoint, the root inode is dirty in\nf2fs_evict_inode function, which triggers BUG_ON. The steps to\nreproduce are as follows:\n\ndd if=/dev/zero of=f2fs.img bs=1M count=55\nmount f2fs.img f2fs_dir -o checkpoint=disable:10%\ndd if=/dev/zero of=big bs=1M count=50\nsync\nrm big\nmount -o remount,checkpoint=enable f2fs_dir\numount f2fs_dir\n\nLet's redirty inode when there is not free segments during checkpoint\nis disable.","publishedAt":"2024-12-27T14:50:54.378Z","updatedAt":"2026-05-11T20:55:19.450Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"ac8aaf78bd039fa1be0acaa8e84a56499f79d721","versionType":"git"},{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"dff561e4060d28edc9a2960d4a87f3c945a96aa3","versionType":"git"},{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"a365de2fbfbe1e6740bfb75ab5c3245cf7bbe4d7","versionType":"git"},{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"ef517d2d21c3d8e2ad35b2bb728bd1c90a31e617","versionType":"git"},{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"9669b28f81e0ec6305af7773846fbe2cef1e7d61","versionType":"git"},{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"9e28513fd2858911dcf47b84160a8824587536b6","versionType":"git"},{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"d5c367ef8287fb4d235c46a2f8c8d68715f3a0ca","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/inode.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.8","versionType":"semver"},{"version":"5.4.287","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.231","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.174","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.120","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.66","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.5","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/inode.c"]}],"references":["https://git.kernel.org/stable/c/ac8aaf78bd039fa1be0acaa8e84a56499f79d721","https://git.kernel.org/stable/c/dff561e4060d28edc9a2960d4a87f3c945a96aa3","https://git.kernel.org/stable/c/a365de2fbfbe1e6740bfb75ab5c3245cf7bbe4d7","https://git.kernel.org/stable/c/ef517d2d21c3d8e2ad35b2bb728bd1c90a31e617","https://git.kernel.org/stable/c/9669b28f81e0ec6305af7773846fbe2cef1e7d61","https://git.kernel.org/stable/c/9e28513fd2858911dcf47b84160a8824587536b6","https://git.kernel.org/stable/c/d5c367ef8287fb4d235c46a2f8c8d68715f3a0ca","https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html","https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:08:12.933Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/56xxx/CVE-2024-56586.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-56586","state":"PUBLISHED","datePublished":"2024-12-27T14:50:54.378Z","dateUpdated":"2026-05-11T20:55:19.450Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-27T14:03:06.001Z"},"containers":{"cna":{"title":"f2fs: fix f2fs_bug_on when uninstalling filesystem call f2fs_evict_inode.","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix f2fs_bug_on when uninstalling filesystem call f2fs_evict_inode.\n\ncreating a large files during checkpoint disable until it runs out of\nspace and then delete it, then remount to enable checkpoint again, and\nthen unmount the filesystem triggers the f2fs_bug_on as below:\n\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/inode.c:896!\nCPU: 2 UID: 0 PID: 1286 Comm: umount Not tainted 6.11.0-rc7-dirty #360\nOops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\nRIP: 0010:f2fs_evict_inode+0x58c/0x610\nCall Trace:\n __die_body+0x15/0x60\n die+0x33/0x50\n do_trap+0x10a/0x120\n f2fs_evict_inode+0x58c/0x610\n do_error_trap+0x60/0x80\n f2fs_evict_inode+0x58c/0x610\n exc_invalid_op+0x53/0x60\n f2fs_evict_inode+0x58c/0x610\n asm_exc_invalid_op+0x16/0x20\n f2fs_evict_inode+0x58c/0x610\n evict+0x101/0x260\n dispose_list+0x30/0x50\n evict_inodes+0x140/0x190\n generic_shutdown_super+0x2f/0x150\n kill_block_super+0x11/0x40\n kill_f2fs_super+0x7d/0x140\n deactivate_locked_super+0x2a/0x70\n cleanup_mnt+0xb3/0x140\n task_work_run+0x61/0x90\n\nThe root cause is: creating large files during disable checkpoint\nperiod results in not enough free segments, so when writing back root\ninode will failed in f2fs_enable_checkpoint. When umount the file\nsystem after enabling checkpoint, the root inode is dirty in\nf2fs_evict_inode function, which triggers BUG_ON. The steps to\nreproduce are as follows:\n\ndd if=/dev/zero of=f2fs.img bs=1M count=55\nmount f2fs.img f2fs_dir -o checkpoint=disable:10%\ndd if=/dev/zero of=big bs=1M count=50\nsync\nrm big\nmount -o remount,checkpoint=enable f2fs_dir\numount f2fs_dir\n\nLet's redirty inode when there is not free segments during checkpoint\nis disable."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"ac8aaf78bd039fa1be0acaa8e84a56499f79d721","versionType":"git"},{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"dff561e4060d28edc9a2960d4a87f3c945a96aa3","versionType":"git"},{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"a365de2fbfbe1e6740bfb75ab5c3245cf7bbe4d7","versionType":"git"},{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"ef517d2d21c3d8e2ad35b2bb728bd1c90a31e617","versionType":"git"},{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"9669b28f81e0ec6305af7773846fbe2cef1e7d61","versionType":"git"},{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"9e28513fd2858911dcf47b84160a8824587536b6","versionType":"git"},{"version":"98e4da8ca301e062d79ae168c67e56f3c3de3ce4","status":"affected","lessThan":"d5c367ef8287fb4d235c46a2f8c8d68715f3a0ca","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/inode.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.8","versionType":"semver"},{"version":"5.4.287","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.231","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.174","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.120","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.66","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.5","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/inode.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ac8aaf78bd039fa1be0acaa8e84a56499f79d721"},{"url":"https://git.kernel.org/stable/c/dff561e4060d28edc9a2960d4a87f3c945a96aa3"},{"url":"https://git.kernel.org/stable/c/a365de2fbfbe1e6740bfb75ab5c3245cf7bbe4d7"},{"url":"https://git.kernel.org/stable/c/ef517d2d21c3d8e2ad35b2bb728bd1c90a31e617"},{"url":"https://git.kernel.org/stable/c/9669b28f81e0ec6305af7773846fbe2cef1e7d61"},{"url":"https://git.kernel.org/stable/c/9e28513fd2858911dcf47b84160a8824587536b6"},{"url":"https://git.kernel.org/stable/c/d5c367ef8287fb4d235c46a2f8c8d68715f3a0ca"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:55:19.450Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"5.4.287"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"5.10.231"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"5.15.174"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.1.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.6.66"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.12.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.8","versionEndExcluding":"6.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T20:50:06.930Z"}}]}}}