CVE-2025-68769 (GCVE-0-2025-68769)

Vulnerability from cvelistv5 – Published: 2026-01-13 15:28 – Updated: 2026-05-23 16:02
VLAI
Title
f2fs: fix return value of f2fs_recover_fsync_data()
Summary
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix return value of f2fs_recover_fsync_data() With below scripts, it will trigger panic in f2fs: mkfs.f2fs -f /dev/vdd mount /dev/vdd /mnt/f2fs touch /mnt/f2fs/foo sync echo 111 >> /mnt/f2fs/foo f2fs_io fsync /mnt/f2fs/foo f2fs_io shutdown 2 /mnt/f2fs umount /mnt/f2fs mount -o ro,norecovery /dev/vdd /mnt/f2fs or mount -o ro,disable_roll_forward /dev/vdd /mnt/f2fs F2FS-fs (vdd): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 F2FS-fs (vdd): Mounted with checkpoint version = 7f5c361f F2FS-fs (vdd): Stopped filesystem due to reason: 0 F2FS-fs (vdd): f2fs_recover_fsync_data: recovery fsync data, check_only: 1 Filesystem f2fs get_tree() didn't set fc->root, returned 1 ------------[ cut here ]------------ kernel BUG at fs/super.c:1761! Oops: invalid opcode: 0000 [#1] SMP PTI CPU: 3 UID: 0 PID: 722 Comm: mount Not tainted 6.18.0-rc2+ #721 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:vfs_get_tree.cold+0x18/0x1a Call Trace: <TASK> fc_mount+0x13/0xa0 path_mount+0x34e/0xc50 __x64_sys_mount+0x121/0x150 do_syscall_64+0x84/0x800 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7fa6cc126cfe The root cause is we missed to handle error number returned from f2fs_recover_fsync_data() when mounting image w/ ro,norecovery or ro,disable_roll_forward mount option, result in returning a positive error number to vfs_get_tree(), fix it.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 6781eabba1bdb133eb9125c4acf6704ccbe4df02 , < e6ac31abd30e9fd2ef5f0819ce7f3f932be3b725 (git)
Affected: 6781eabba1bdb133eb9125c4acf6704ccbe4df02 , < 0de4977a1eeafe9d77701e3c031a1bcdba389243 (git)
Affected: 6781eabba1bdb133eb9125c4acf6704ccbe4df02 , < 9bc246018aaa3b46a7710428d0a2196c229f9d49 (git)
Affected: 6781eabba1bdb133eb9125c4acf6704ccbe4df02 , < a4c67d96f92eefcfa5596a08f069e77b743c5865 (git)
Affected: 6781eabba1bdb133eb9125c4acf6704ccbe4df02 , < 473550e715654ad7612aa490d583cb7c25fe2ff3 (git)
Affected: 6781eabba1bdb133eb9125c4acf6704ccbe4df02 , < 4560db9678a2c5952b6205fbca468c6805c2ba2a (git)
Affected: 6781eabba1bdb133eb9125c4acf6704ccbe4df02 , < 01fba45deaddcce0d0b01c411435d1acf6feab7b (git)
Affected: 1499d39b74f5957e932639a86487ccea5a0a9740 (git)
Affected: 4.4.172 , < 4.5 (semver)
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Linux Linux Affected: 4.7
Unaffected: 0 , < 4.7 (semver)
Unaffected: 5.10.248 , ≤ 5.10.* (semver)
Unaffected: 5.15.198 , ≤ 5.15.* (semver)
Unaffected: 6.1.160 , ≤ 6.1.* (semver)
Unaffected: 6.6.120 , ≤ 6.6.* (semver)
Unaffected: 6.12.64 , ≤ 6.12.* (semver)
Unaffected: 6.18.3 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
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{
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        {
          "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 \u003e\u003e /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\u0027t set fc-\u003eroot, 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 \u003cTASK\u003e\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."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-05-23T16:02:51.005Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/e6ac31abd30e9fd2ef5f0819ce7f3f932be3b725"
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        {
          "url": "https://git.kernel.org/stable/c/01fba45deaddcce0d0b01c411435d1acf6feab7b"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68769",
    "datePublished": "2026-01-13T15:28:47.798Z",
    "dateReserved": "2025-12-24T10:30:51.034Z",
    "dateUpdated": "2026-05-23T16:02:51.005Z",
    "state": "PUBLISHED"
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      "cve": "CVE-2025-68769",
      "date": "2026-07-19",
      "epss": "0.00173",
      "percentile": "0.06878"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-68769\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-01-13T16:15:56.353\",\"lastModified\":\"2026-06-17T09:59:33.410\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"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 \u003e\u003e /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\u0027t set fc-\u003eroot, 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 \u003cTASK\u003e\\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.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\\n\\nf2fs: corrige el valor de retorno de f2fs_recover_fsync_data()\\n\\nCon los siguientes scripts, se activar\u00e1 un p\u00e1nico en f2fs:\\n\\nmkfs.f2fs -f /dev/vdd\\nmount /dev/vdd /mnt/f2fs\\ntouch /mnt/f2fs/foo\\nsync\\necho 111 \u0026gt;\u0026gt; /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\u0027t set fc-\u0026gt;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 \\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\\nLa causa ra\u00edz es que omitimos manejar el n\u00famero de error devuelto por f2fs_recover_fsync_data() al montar la imagen con la opci\u00f3n de montaje ro,norecovery o ro,disable_roll_forward, lo que resulta en la devoluci\u00f3n de un n\u00famero de error positivo a vfs_get_tree(), se corrige.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/f2fs/super.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6781eabba1bdb133eb9125c4acf6704ccbe4df02\",\"lessThan\":\"e6ac31abd30e9fd2ef5f0819ce7f3f932be3b725\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6781eabba1bdb133eb9125c4acf6704ccbe4df02\",\"lessThan\":\"0de4977a1eeafe9d77701e3c031a1bcdba389243\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6781eabba1bdb133eb9125c4acf6704ccbe4df02\",\"lessThan\":\"9bc246018aaa3b46a7710428d0a2196c229f9d49\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6781eabba1bdb133eb9125c4acf6704ccbe4df02\",\"lessThan\":\"a4c67d96f92eefcfa5596a08f069e77b743c5865\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6781eabba1bdb133eb9125c4acf6704ccbe4df02\",\"lessThan\":\"473550e715654ad7612aa490d583cb7c25fe2ff3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6781eabba1bdb133eb9125c4acf6704ccbe4df02\",\"lessThan\":\"4560db9678a2c5952b6205fbca468c6805c2ba2a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6781eabba1bdb133eb9125c4acf6704ccbe4df02\",\"lessThan\":\"01fba45deaddcce0d0b01c411435d1acf6feab7b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1499d39b74f5957e932639a86487ccea5a0a9740\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4.4.172\",\"lessThan\":\"4.5\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/f2fs/super.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.7\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.7\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.248\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.198\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.160\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.120\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.64\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.3\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/01fba45deaddcce0d0b01c411435d1acf6feab7b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0de4977a1eeafe9d77701e3c031a1bcdba389243\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4560db9678a2c5952b6205fbca468c6805c2ba2a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/473550e715654ad7612aa490d583cb7c25fe2ff3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9bc246018aaa3b46a7710428d0a2196c229f9d49\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a4c67d96f92eefcfa5596a08f069e77b743c5865\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e6ac31abd30e9fd2ef5f0819ce7f3f932be3b725\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T07:11:06+00:00",
      "cve": "CVE-2025-68769",
      "id": "CVE-2025-68769",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: f2fs: fix return value of f2fs_recover_fsync_data()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68769.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.