{"id":"CVE-2025-68769","state":"PUBLISHED","title":"f2fs: fix return value of f2fs_recover_fsync_data()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix return value of f2fs_recover_fsync_data()\n\nWith below scripts, it will trigger panic in f2fs:\n\nmkfs.f2fs -f /dev/vdd\nmount /dev/vdd /mnt/f2fs\ntouch /mnt/f2fs/foo\nsync\necho 111 >> /mnt/f2fs/foo\nf2fs_io fsync /mnt/f2fs/foo\nf2fs_io shutdown 2 /mnt/f2fs\numount /mnt/f2fs\nmount -o ro,norecovery /dev/vdd /mnt/f2fs\nor\nmount -o ro,disable_roll_forward /dev/vdd /mnt/f2fs\n\nF2FS-fs (vdd): f2fs_recover_fsync_data: recovery fsync data, check_only: 0\nF2FS-fs (vdd): Mounted with checkpoint version = 7f5c361f\nF2FS-fs (vdd): Stopped filesystem due to reason: 0\nF2FS-fs (vdd): f2fs_recover_fsync_data: recovery fsync data, check_only: 1\nFilesystem f2fs get_tree() didn't set fc->root, returned 1\n------------[ cut here ]------------\nkernel BUG at fs/super.c:1761!\nOops: invalid opcode: 0000 [#1] SMP PTI\nCPU: 3 UID: 0 PID: 722 Comm: mount Not tainted 6.18.0-rc2+ #721 PREEMPT(voluntary)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nRIP: 0010:vfs_get_tree.cold+0x18/0x1a\nCall Trace:\n <TASK>\n fc_mount+0x13/0xa0\n path_mount+0x34e/0xc50\n __x64_sys_mount+0x121/0x150\n do_syscall_64+0x84/0x800\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\nRIP: 0033:0x7fa6cc126cfe\n\nThe root cause is we missed to handle error number returned from\nf2fs_recover_fsync_data() when mounting image w/ ro,norecovery or\nro,disable_roll_forward mount option, result in returning a positive\nerror number to vfs_get_tree(), fix it.","publishedAt":"2026-01-13T15:28:47.798Z","updatedAt":"2026-05-23T16:02:51.005Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"e6ac31abd30e9fd2ef5f0819ce7f3f932be3b725","versionType":"git"},{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"0de4977a1eeafe9d77701e3c031a1bcdba389243","versionType":"git"},{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"9bc246018aaa3b46a7710428d0a2196c229f9d49","versionType":"git"},{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"a4c67d96f92eefcfa5596a08f069e77b743c5865","versionType":"git"},{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"473550e715654ad7612aa490d583cb7c25fe2ff3","versionType":"git"},{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"4560db9678a2c5952b6205fbca468c6805c2ba2a","versionType":"git"},{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"01fba45deaddcce0d0b01c411435d1acf6feab7b","versionType":"git"},{"version":"1499d39b74f5957e932639a86487ccea5a0a9740","status":"affected","versionType":"git"},{"version":"4.4.172","status":"affected","lessThan":"4.5","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/super.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.7","versionType":"semver"},{"version":"5.10.248","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.198","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.160","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.120","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.64","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.3","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/super.c"]}],"references":["https://git.kernel.org/stable/c/e6ac31abd30e9fd2ef5f0819ce7f3f932be3b725","https://git.kernel.org/stable/c/0de4977a1eeafe9d77701e3c031a1bcdba389243","https://git.kernel.org/stable/c/9bc246018aaa3b46a7710428d0a2196c229f9d49","https://git.kernel.org/stable/c/a4c67d96f92eefcfa5596a08f069e77b743c5865","https://git.kernel.org/stable/c/473550e715654ad7612aa490d583cb7c25fe2ff3","https://git.kernel.org/stable/c/4560db9678a2c5952b6205fbca468c6805c2ba2a","https://git.kernel.org/stable/c/01fba45deaddcce0d0b01c411435d1acf6feab7b"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:56.034Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/68xxx/CVE-2025-68769.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-68769","state":"PUBLISHED","datePublished":"2026-01-13T15:28:47.798Z","dateUpdated":"2026-05-23T16:02:51.005Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-24T10:30:51.034Z"},"containers":{"cna":{"title":"f2fs: fix return value of f2fs_recover_fsync_data()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix return value of f2fs_recover_fsync_data()\n\nWith below scripts, it will trigger panic in f2fs:\n\nmkfs.f2fs -f /dev/vdd\nmount /dev/vdd /mnt/f2fs\ntouch /mnt/f2fs/foo\nsync\necho 111 >> /mnt/f2fs/foo\nf2fs_io fsync /mnt/f2fs/foo\nf2fs_io shutdown 2 /mnt/f2fs\numount /mnt/f2fs\nmount -o ro,norecovery /dev/vdd /mnt/f2fs\nor\nmount -o ro,disable_roll_forward /dev/vdd /mnt/f2fs\n\nF2FS-fs (vdd): f2fs_recover_fsync_data: recovery fsync data, check_only: 0\nF2FS-fs (vdd): Mounted with checkpoint version = 7f5c361f\nF2FS-fs (vdd): Stopped filesystem due to reason: 0\nF2FS-fs (vdd): f2fs_recover_fsync_data: recovery fsync data, check_only: 1\nFilesystem f2fs get_tree() didn't set fc->root, returned 1\n------------[ cut here ]------------\nkernel BUG at fs/super.c:1761!\nOops: invalid opcode: 0000 [#1] SMP PTI\nCPU: 3 UID: 0 PID: 722 Comm: mount Not tainted 6.18.0-rc2+ #721 PREEMPT(voluntary)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nRIP: 0010:vfs_get_tree.cold+0x18/0x1a\nCall Trace:\n <TASK>\n fc_mount+0x13/0xa0\n path_mount+0x34e/0xc50\n __x64_sys_mount+0x121/0x150\n do_syscall_64+0x84/0x800\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\nRIP: 0033:0x7fa6cc126cfe\n\nThe root cause is we missed to handle error number returned from\nf2fs_recover_fsync_data() when mounting image w/ ro,norecovery or\nro,disable_roll_forward mount option, result in returning a positive\nerror number to vfs_get_tree(), fix it."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"e6ac31abd30e9fd2ef5f0819ce7f3f932be3b725","versionType":"git"},{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"0de4977a1eeafe9d77701e3c031a1bcdba389243","versionType":"git"},{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"9bc246018aaa3b46a7710428d0a2196c229f9d49","versionType":"git"},{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"a4c67d96f92eefcfa5596a08f069e77b743c5865","versionType":"git"},{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"473550e715654ad7612aa490d583cb7c25fe2ff3","versionType":"git"},{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"4560db9678a2c5952b6205fbca468c6805c2ba2a","versionType":"git"},{"version":"6781eabba1bdb133eb9125c4acf6704ccbe4df02","status":"affected","lessThan":"01fba45deaddcce0d0b01c411435d1acf6feab7b","versionType":"git"},{"version":"1499d39b74f5957e932639a86487ccea5a0a9740","status":"affected","versionType":"git"},{"version":"4.4.172","status":"affected","lessThan":"4.5","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/super.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.7","versionType":"semver"},{"version":"5.10.248","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.198","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.160","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.120","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.64","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.3","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/super.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/e6ac31abd30e9fd2ef5f0819ce7f3f932be3b725"},{"url":"https://git.kernel.org/stable/c/0de4977a1eeafe9d77701e3c031a1bcdba389243"},{"url":"https://git.kernel.org/stable/c/9bc246018aaa3b46a7710428d0a2196c229f9d49"},{"url":"https://git.kernel.org/stable/c/a4c67d96f92eefcfa5596a08f069e77b743c5865"},{"url":"https://git.kernel.org/stable/c/473550e715654ad7612aa490d583cb7c25fe2ff3"},{"url":"https://git.kernel.org/stable/c/4560db9678a2c5952b6205fbca468c6805c2ba2a"},{"url":"https://git.kernel.org/stable/c/01fba45deaddcce0d0b01c411435d1acf6feab7b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T16:02:51.005Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"5.10.248"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"5.15.198"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.1.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.6.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.12.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.18.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4.172"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}