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CVE-2025-38333— f2fs: fix to bail out in get_new_segment()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于f2fs中get_new_segment错误处理不当，可能导致崩溃。

CVSS 7.8 · High EPSS 0.18% · P8

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 98e4da8ca301e062d79ae168c67e56f3c3de3ce4< f0023d7a2a86999c8e1300e911d92f995a5310a8 affected
98e4da8ca301e062d79ae168c67e56f3c3de3ce4< ca860f507a61c7c3d4dde47b830a5c0d555cf83c affected
98e4da8ca301e062d79ae168c67e56f3c3de3ce4< bb5eb8a5b222fa5092f60d5555867a05ebc3bdf2 affected
3.8 affected
< 3.8 unaffected
6.12.35≤ 6.12.* unaffected
6.15.4≤ 6.15.* unaffected
6.16≤ * unaffected
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I. Basic Information for CVE-2025-38333

Vulnerability Information
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Vulnerability Title
f2fs: fix to bail out in get_new_segment()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to bail out in get_new_segment() ------------[ cut here ]------------ WARNING: CPU: 3 PID: 579 at fs/f2fs/segment.c:2832 new_curseg+0x5e8/0x6dc pc : new_curseg+0x5e8/0x6dc Call trace: new_curseg+0x5e8/0x6dc f2fs_allocate_data_block+0xa54/0xe28 do_write_page+0x6c/0x194 f2fs_do_write_node_page+0x38/0x78 __write_node_page+0x248/0x6d4 f2fs_sync_node_pages+0x524/0x72c f2fs_write_checkpoint+0x4bc/0x9b0 __checkpoint_and_complete_reqs+0x80/0x244 issue_checkpoint_thread+0x8c/0xec kthread+0x114/0x1bc ret_from_fork+0x10/0x20 get_new_segment() detects inconsistent status in between free_segmap and free_secmap, let's record such error into super block, and bail out get_new_segment() instead of continue using the segment.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于f2fs中get_new_segment错误处理不当，可能导致崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 98e4da8ca301e062d79ae168c67e56f3c3de3ce4 ~ f0023d7a2a86999c8e1300e911d92f995a5310a8 -
Linux Linux 3.8 -

II. Public POCs for CVE-2025-38333

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III. Intelligence Information for CVE-2025-38333

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Same Patch Batch · Linux · 2025-07-10 · 84 CVEs total

CVE-2025-38325 9.8 CRITICAL ksmbd: add free_transport ops in ksmbd connection
CVE-2025-38292 8.8 HIGH wifi: ath12k: fix invalid access to memory
CVE-2025-38293 8.8 HIGH wifi: ath11k: fix node corruption in ar->arvifs list
CVE-2025-38291 8.8 HIGH wifi: ath12k: Prevent sending WMI commands to firmware during firmware crash
CVE-2025-38290 8.8 HIGH wifi: ath12k: fix node corruption in ar->arvifs list
CVE-2025-38283 8.8 HIGH hisi_acc_vfio_pci: bugfix live migration function without VF device driver
CVE-2025-38343 8.3 HIGH wifi: mt76: mt7996: drop fragments with multicast or broadcast RA
CVE-2025-38306 7.8 HIGH fs/fhandle.c: fix a race in call of has_locked_children()
CVE-2025-38276 7.8 HIGH fs/dax: Fix "don't skip locked entries when scanning entries"
CVE-2025-38341 7.8 HIGH eth: fbnic: avoid double free when failing to DMA-map FW msg
CVE-2025-38346 7.8 HIGH ftrace: Fix UAF when lookup kallsym after ftrace disabled
CVE-2025-38273 7.8 HIGH net: tipc: fix refcount warning in tipc_aead_encrypt
CVE-2025-38270 7.8 HIGH net: drv: netdevsim: don't napi_complete() from netpoll
CVE-2025-38339 7.8 HIGH powerpc/bpf: fix JIT code size calculation of bpf trampoline
CVE-2025-38278 7.8 HIGH octeontx2-pf: QOS: Refactor TC_HTB_LEAF_DEL_LAST callback
CVE-2025-38317 7.8 HIGH wifi: ath12k: Fix buffer overflow in debugfs
CVE-2025-38303 7.8 HIGH Bluetooth: eir: Fix possible crashes on eir_create_adv_data
CVE-2025-38321 7.8 HIGH smb: Log an error when close_all_cached_dirs fails
CVE-2025-38331 7.5 HIGH net: ethernet: cortina: Use TOE/TSO on all TCP
CVE-2025-38287 7.5 HIGH IB/cm: Drop lockdep assert and WARN when freeing old msg

Showing top 20 of 84 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38333

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