CVE-2025-38677

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2025-08-30. NVD baseline CVSS 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to avoid out-of-boundary access in dnode page

As Jiaming Zhang reported:

__dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x1c1/0x2a0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0x17e/0x800 mm/kasan/report.c:480 kasan_report+0x147/0x180 mm/kasan/report.c:593 data_blkaddr fs/f2fs/f2fs.h:3053 [inline] f2fs_data_blkaddr fs/f2fs/f2fs.h:3058 [inline] f2fs_get_dnode_of_data+0x1a09/0x1c40 fs/f2fs/node.c:855 f2fs_reserve_block+0x53/0x310 fs/f2fs/data.c:1195 prepare_write_begin fs/f2fs/data.c:3395 [inline] f2fs_write_begin+0xf39/0x2190 fs/f2fs/data.c:3594 generic_perform_write+0x2c7/0x910 mm/filemap.c:4112 f2fs_buffered_write_iter fs/f2fs/file.c:4988 [inline] f2fs_file_write_iter+0x1ec8/0x2410 fs/f2fs/file.c:5216 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x546/0xa90 fs/read_write.c:686 ksys_write+0x149/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x3d0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The root cause is in the corrupted image, there is a dnode has the same node id w/ its inode, so during f2fs_get_dnode_of_data(), it tries to access block address in dnode at offset 934, however it parses the dnode as inode node, so that get_dnode_addr() returns 360, then it tries to access page address from 360 + 934 * 4 = 4096 w/ 4 bytes.

To fix this issue, let's add sanity check for node id of all direct nodes during f2fs_get_dnode_of_data().

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity71% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

August 30, 2025

Last Modified

August 5, 2026

Advisory Details (10)

Auto-updated Aug 2, 2026
Patch available.
generic Patch Available

[SECURITY] [DLA 4328-1] linux-6.1 security update

https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
generic Patch Available

[SECURITY] [DLA 4327-1] linux security update

https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
generic

f2fs: fix to avoid out-of-boundary access in dnode page - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f1d5093d9fe9f3c74c123741c88666cc853b79c5
generic

f2fs: fix to avoid out-of-boundary access in dnode page - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ee4d13f5407cbdf1216cc258f45492075713889a
generic

f2fs: fix to avoid out-of-boundary access in dnode page - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a650654365c57407413e9b1f6ff4d539bf2e99ca
generic

f2fs: fix to avoid out-of-boundary access in dnode page - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/92ef491b506a0f4dd971a3a76f86f2d8f5370180
generic

f2fs: fix to avoid out-of-boundary access in dnode page - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/901f62efd6e855f93d8b1175540f29f4dc45ba55
generic

f2fs: fix to avoid out-of-boundary access in dnode page - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/888aa660144bcb6ec07839da756ee46bfcf7fc53
generic

f2fs: fix to avoid out-of-boundary access in dnode page - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/77de19b6867f2740cdcb6c9c7e50d522b47847a4
generic

f2fs: fix to avoid out-of-boundary access in dnode page - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6b7784ea07e6aa044f74b39d6b5af5e28746fc81

Patch Availability(26)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1061 (5.15.0-1061.65) @ jammy2026-07-30ubuntu
ubuntulinux-tools-realtime-5.15 (5.15.0.1096.100) @ jammy2026-07-30ubuntu
ubuntulinux-tools-gcp-fips-5.15 (5.15.0.1097.87) @ jammy2026-07-30ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1101.86) @ jammy2026-07-30ubuntu
ubuntulinux-tools-gkeop-5.15 (5.15.0.1080.79) @ jammy2026-07-30ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1101.99) @ jammy2026-07-30ubuntu
ubuntulinux-tools-kvm-5.15 (5.15.0.1089.85) @ jammy2026-07-30ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1091.89) @ jammy2026-07-30ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1102.111~20.04.1) @ focal2026-07-30ubuntu
ubuntulinux-virtual-6.8 (6.8.0-100.100) @ noble2026-07-30ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1041.42~22.04.1) @ jammy2026-07-30ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1047.50~22.04.2) @ jammy2026-07-30ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1041.42) @ noble2026-07-30ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-100.100+fips1) @ noble2026-07-30ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1043.44) @ noble2026-07-30ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1047.50+fips1) @ noble2026-07-30ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-100.100~22.04.1) @ jammy2026-07-30ubuntu
ubuntulinux-tools-gke-64k-6.8 (6.8.0-1043.48) @ noble2026-07-30ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-100.100.1) @ noble2026-07-30ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1046.49.1) @ noble2026-07-30ubuntu
ubuntulinux-tools-ibm-lts-24.04 (6.8.0-1044.44) @ noble2026-07-30ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1023.24) @ noble2026-07-30ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1046.52) @ noble2026-07-30ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1046.52+fips1) @ noble2026-07-30ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1051.57~22.04.1) @ jammy2026-07-30ubuntu
linuxKernel @ 5.4.297—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 8× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 139 total refreshes for this CVE.

  1. 2026-08-06 13:46 UTCEPSS rescore
  2. 2026-08-05 12:59 UTCEG score recompute
  3. 2026-08-05 12:59 UTCVendor advisory
  4. 2026-08-05 12:59 UTCGHSA enrichment
  5. 2026-08-04 15:09 UTCEPSS rescore
  6. 2026-08-04 10:37 UTCEPSS rescore
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  10. 2026-07-30 16:27 UTCEPSS rescore
  11. 2026-07-30 06:58 UTCEG score recompute
  12. 2026-07-30 06:58 UTCVendor advisory
  13. 2026-07-30 06:58 UTCGHSA enrichment
  14. 2026-07-30 01:29 UTCEPSS rescore
  15. 2026-07-28 15:35 UTCEPSS rescore
  16. 2026-07-27 12:46 UTCOSV refresh
  17. 2026-07-25 14:17 UTCEPSS rescore
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  20. 2026-07-23 02:55 UTCEG score recompute
  21. 2026-07-22 14:07 UTCEPSS rescore
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  1. 2026-07-19 14:30 UTCEPSS rescore
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  15. 2026-07-11 08:27 UTCEPSS rescore
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  17. 2026-07-10 07:27 UTCOSV refresh
  18. 2026-07-09 19:09 UTCEPSS rescore
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  20. 2026-07-07 13:45 UTCEPSS rescore
  21. 2026-07-06 16:27 UTCEPSS rescore
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  23. 2026-07-05 02:30 UTCEPSS rescore
  24. 2026-07-04 06:30 UTCEPSS rescore
  25. 2026-07-01 15:06 UTCEPSS rescore
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  27. 2026-06-30 23:22 UTCEPSS rescore
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  43. 2026-06-22 14:25 UTCEPSS rescore
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  45. 2026-06-21 17:42 UTCOSV refresh
  46. 2026-06-21 14:56 UTCEPSS rescore
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  48. 2026-06-21 01:59 UTCEPSS rescore
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  73. 2026-06-02 17:32 UTCOSV refresh
  74. 2026-06-01 13:51 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2025-38677?
CVE-2025-38677 is a high vulnerability published on August 30, 2025. In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid out-of-boundary access in dnode page As Jiaming Zhang reported: <TASK> dumpstack lib/dumpstack.c:94 [inline] dumpstacklvl+0x1c1/0x2a0 lib/dump_stack.c:120 printaddressdescription mm/kasan/report.c:378 [inline]…
When was CVE-2025-38677 disclosed?
CVE-2025-38677 was first published in the National Vulnerability Database on August 30, 2025, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-38677 actively exploited?
CVE-2025-38677 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 93.7% of all scored CVEs.
What is the CVSS score of CVE-2025-38677?
CVE-2025-38677 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2025-38677?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-38677, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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