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EUVD-2026-346006
European Vulnerability Database identifier assigned by ENISAReserved
2026-10-02 08:06
Assigner
ENISA
Alias of
a CVE record, shown under related vulnerabilities.
This identifier carries no description, severity or references of its own:
they belong to that CVE.
{
"assigner": "ENISA",
"date_reserved": "2026-10-02T08:06:31.987569+00:00",
"id": "EUVD-2026-346006"
}
CVE-2024-42297 (GCVE-0-2024-42297)
Vulnerability from cvelistv5 – Published: 2024-08-17 09:09 – Updated: 2026-08-05 11:36
VLAI
EPSS
VEX
Title
f2fs: fix to don't dirty inode for readonly filesystem
Summary
In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to don't dirty inode for readonly filesystem
syzbot reports f2fs bug as below:
kernel BUG at fs/f2fs/inode.c:933!
RIP: 0010:f2fs_evict_inode+0x1576/0x1590 fs/f2fs/inode.c:933
Call Trace:
evict+0x2a4/0x620 fs/inode.c:664
dispose_list fs/inode.c:697 [inline]
evict_inodes+0x5f8/0x690 fs/inode.c:747
generic_shutdown_super+0x9d/0x2c0 fs/super.c:675
kill_block_super+0x44/0x90 fs/super.c:1667
kill_f2fs_super+0x303/0x3b0 fs/f2fs/super.c:4894
deactivate_locked_super+0xc1/0x130 fs/super.c:484
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256
task_work_run+0x24a/0x300 kernel/task_work.c:180
ptrace_notify+0x2cd/0x380 kernel/signal.c:2399
ptrace_report_syscall include/linux/ptrace.h:411 [inline]
ptrace_report_syscall_exit include/linux/ptrace.h:473 [inline]
syscall_exit_work kernel/entry/common.c:251 [inline]
syscall_exit_to_user_mode_prepare kernel/entry/common.c:278 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x15c/0x280 kernel/entry/common.c:296
do_syscall_64+0x50/0x110 arch/x86/entry/common.c:88
entry_SYSCALL_64_after_hwframe+0x63/0x6b
The root cause is:
- do_sys_open
- f2fs_lookup
- __f2fs_find_entry
- f2fs_i_depth_write
- f2fs_mark_inode_dirty_sync
- f2fs_dirty_inode
- set_inode_flag(inode, FI_DIRTY_INODE)
- umount
- kill_f2fs_super
- kill_block_super
- generic_shutdown_super
- sync_filesystem
: sb is readonly, skip sync_filesystem()
- evict_inodes
- iput
- f2fs_evict_inode
- f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE))
: trigger kernel panic
When we try to repair i_current_depth in readonly filesystem, let's
skip dirty inode to avoid panic in later f2fs_evict_inode().
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:10 UTC
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < 2d2916516577f2239b3377d9e8d12da5e6ccdfcf
(git)
Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < 54162974aea37a8cae00742470a78c7f6bd6f915 (git) Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < 54bc4e88447e385c4d4ffa85d93e0dce628fcfa6 (git) Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < ec56571b4b146a1cfbedab49d5fcaf19fe8bf4f1 (git) Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < 9ce8135accf103f7333af472709125878704fdd4 (git) Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < e62ff092a42f4a1bae3b310cf46673b4f3aac3b5 (git) Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < 2434344559f6743efb3ac15d11af9a0db9543bd3 (git) Affected: 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 , < 192b8fb8d1c8ca3c87366ebbef599fa80bb626b8 (git) |
|
| Linux | Linux |
Affected:
3.8
Unaffected: 0 , < 3.8 (semver) Unaffected: 4.19.320 , ≤ 4.19.* (semver) Unaffected: 5.4.282 , ≤ 5.4.* (semver) Unaffected: 5.10.224 , ≤ 5.10.* (semver) Unaffected: 5.15.165 , ≤ 5.15.* (semver) Unaffected: 6.1.103 , ≤ 6.1.* (semver) Unaffected: 6.6.44 , ≤ 6.6.* (semver) Unaffected: 6.10.3 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
{
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"metrics": [
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"id": "CVE-2024-42297",
"options": [
{
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}
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"role": "CISA Coordinator",
"timestamp": "2024-09-10T16:10:44.574818Z",
"version": "2.0.3"
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"dateUpdated": "2024-09-12T17:33:28.885Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-11-03T22:03:58.483Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/f2fs/inode.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "2d2916516577f2239b3377d9e8d12da5e6ccdfcf",
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"versionType": "git"
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{
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"status": "affected",
"version": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4",
"versionType": "git"
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{
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{
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"versions": [
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{
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"version": "5.10.224",
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{
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{
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"version": "6.11",
"versionType": "original_commit_for_fix"
}
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}
],
"cpeApplicability": [
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"nodes": [
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"versionEndExcluding": "4.19.320",
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"vulnerable": true
},
{
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{
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}
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"negate": false,
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to don\u0027t dirty inode for readonly filesystem\n\nsyzbot reports f2fs bug as below:\n\nkernel BUG at fs/f2fs/inode.c:933!\nRIP: 0010:f2fs_evict_inode+0x1576/0x1590 fs/f2fs/inode.c:933\nCall Trace:\n evict+0x2a4/0x620 fs/inode.c:664\n dispose_list fs/inode.c:697 [inline]\n evict_inodes+0x5f8/0x690 fs/inode.c:747\n generic_shutdown_super+0x9d/0x2c0 fs/super.c:675\n kill_block_super+0x44/0x90 fs/super.c:1667\n kill_f2fs_super+0x303/0x3b0 fs/f2fs/super.c:4894\n deactivate_locked_super+0xc1/0x130 fs/super.c:484\n cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256\n task_work_run+0x24a/0x300 kernel/task_work.c:180\n ptrace_notify+0x2cd/0x380 kernel/signal.c:2399\n ptrace_report_syscall include/linux/ptrace.h:411 [inline]\n ptrace_report_syscall_exit include/linux/ptrace.h:473 [inline]\n syscall_exit_work kernel/entry/common.c:251 [inline]\n syscall_exit_to_user_mode_prepare kernel/entry/common.c:278 [inline]\n __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]\n syscall_exit_to_user_mode+0x15c/0x280 kernel/entry/common.c:296\n do_syscall_64+0x50/0x110 arch/x86/entry/common.c:88\n entry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nThe root cause is:\n- do_sys_open\n - f2fs_lookup\n - __f2fs_find_entry\n - f2fs_i_depth_write\n - f2fs_mark_inode_dirty_sync\n - f2fs_dirty_inode\n - set_inode_flag(inode, FI_DIRTY_INODE)\n\n- umount\n - kill_f2fs_super\n - kill_block_super\n - generic_shutdown_super\n - sync_filesystem\n : sb is readonly, skip sync_filesystem()\n - evict_inodes\n - iput\n - f2fs_evict_inode\n - f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE))\n : trigger kernel panic\n\nWhen we try to repair i_current_depth in readonly filesystem, let\u0027s\nskip dirty inode to avoid panic in later f2fs_evict_inode()."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerability is reached through local filesystem operations on a mounted f2fs volume \u2014 a path lookup, posix_fadvise(POSIX_FADV_WILLNEED), F2FS_IOC_PRECACHE_EXTENTS, or fiemap \u2014 with the assertion firing during inode eviction. There is no network-facing path into fs/f2fs/inode.c.\nAC:L - The trigger is fully deterministic with no race: one dirtying operation on a read-only f2fs mount guarantees FI_DIRTY_INODE survives to f2fs_evict_inode, since sync_filesystem() is unconditionally skipped for read-only superblocks. CONFIG_F2FS_CHECK_FS turns it into a hard BUG(), but the defect is not conditional on it \u2014 default configs still WARN and free the inode with a dangling sbi-\u003einode_list[DIRTY_META] entry.\nPR:L - An unprivileged local user with only read access to a file on a read-only f2fs mount can dirty the inode; f2fs_ioc_precache_extents() and f2fs_file_fadvise() perform no capability, ownership, or mnt_want_write check, and the __f2fs_find_entry depth-repair path needs nothing beyond stat(). Read-only f2fs volumes are routine on Android and embedded systems where any app can reach them.\nUI:N - The attacker performs the entire dirtying step alone; the eviction that fires the assertion happens during ordinary automatic system activity \u2014 volume unmount by vold/udisks2, media eject, or shutdown \u2014 rather than requiring a victim to be tricked into any action. On desktops where udisks2 permits console-user mount/unmount of removable media, the attacker controls the whole chain unaided.\nS:U - The corruption and its consequences are confined to the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - In default configurations f2fs_bug_on degrades to WARN_ON, so execution continues and f2fs_free_inode() releases the 1200-byte f2fs_inode_info while fi-\u003egdirty_list is still linked into sbi-\u003einode_list[DIRTY_META]; subsequent traversal of that list (f2fs_sync_inode_meta) reads through the freed, sprayable slab object. This is the same stale-gdirty_list use-after-free syzbot reported at this assertion site.\nI:H - The dangling DIRTY_META list node gives a write primitive \u2014 the next f2fs_inode_dirtied(sync=true) performs list_add_tail(), whose __list_add() writes a kernel pointer through head-\u003eprev into the freed and potentially reallocated f2fs_inode_cache object. Heap-sprayable slab corruption of this kind is exploitable for control-flow hijacking.\nA:H - With CONFIG_F2FS_CHECK_FS the f2fs_bug_on at fs/f2fs/inode.c:933 is a BUG_ON that panics the kernel mid-unmount, exactly as syzbot reported; without it the WARN_ON still panics under panic_on_warn and leaves the filesystem flagged SBI_NEED_FSCK. Either way the result is a full denial of service."
}
]
}
],
"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"references": [
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"title": "f2fs: fix to don\u0027t dirty inode for readonly filesystem",
"x_generator": {
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"cveMetadata": {
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"cveId": "CVE-2024-42297",
"datePublished": "2024-08-17T09:09:05.076Z",
"dateReserved": "2024-07-30T07:40:12.269Z",
"dateUpdated": "2026-08-05T11:36:27.711Z",
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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