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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 CPE status
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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{
  "containers": {
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          "product": "Linux",
          "programFiles": [
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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."
        }
      ],
      "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/01fba45deaddcce0d0b01c411435d1acf6feab7b"
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    "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",
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      "epss": "0.00202",
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    "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"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-30T01:41:55Z",
      "cve": "CVE-2025-68769",
      "id": "CVE-2025-68769",
      "initial_release_date": "2026-01-14T00:26:16Z",
      "product_status:known_affected": "61",
      "product_status:known_not_affected": "396",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-68769",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-68769.json",
      "version": "10"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.