CVE-2025-71107— f2fs: ensure node page reads complete before f2fs_put_super() finishes
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I. Basic Information for CVE-2025-71107
Vulnerability Information
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Vulnerability Title
f2fs: ensure node page reads complete before f2fs_put_super() finishes
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: ensure node page reads complete before f2fs_put_super() finishes Xfstests generic/335, generic/336 sometimes crash with the following message: F2FS-fs (dm-0): detect filesystem reference count leak during umount, type: 9, count: 1 ------------[ cut here ]------------ kernel BUG at fs/f2fs/super.c:1939! Oops: invalid opcode: 0000 [#1] SMP NOPTI CPU: 1 UID: 0 PID: 609351 Comm: umount Tainted: G W 6.17.0-rc5-xfstests-g9dd1835ecda5 #1 PREEMPT(none) Tainted: [W]=WARN Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:f2fs_put_super+0x3b3/0x3c0 Call Trace: <TASK> generic_shutdown_super+0x7e/0x190 kill_block_super+0x1a/0x40 kill_f2fs_super+0x9d/0x190 deactivate_locked_super+0x30/0xb0 cleanup_mnt+0xba/0x150 task_work_run+0x5c/0xa0 exit_to_user_mode_loop+0xb7/0xc0 do_syscall_64+0x1ae/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e </TASK> ---[ end trace 0000000000000000 ]--- It appears that sometimes it is possible that f2fs_put_super() is called before all node page reads are completed. Adding a call to f2fs_wait_on_all_pages() for F2FS_RD_NODE fixes the problem.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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，该漏洞源于节点页读取未在f2fs_put_super完成前结束，可能导致文件系统引用计数泄漏。
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
II. Public POCs for CVE-2025-71107
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Same Patch Batch · Linux · 2026-01-14 · 43 CVEs total
| CVE-2025-71113 | crypto: af_alg - zero initialize memory allocated via sock_kmalloc | |
| CVE-2025-71123 | ext4: fix string copying in parse_apply_sb_mount_options() | |
| CVE-2025-71110 | mm/slub: reset KASAN tag in defer_free() before accessing freed memory | |
| CVE-2025-71111 | hwmon: (w83791d) Convert macros to functions to avoid TOCTOU | |
| CVE-2025-71108 | usb: typec: ucsi: Handle incorrect num_connectors capability | |
| CVE-2025-71105 | f2fs: use global inline_xattr_slab instead of per-sb slab cache | |
| CVE-2025-71104 | KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer | |
| CVE-2025-71103 | drm/msm: adreno: fix deferencing ifpc_reglist when not declared | |
| CVE-2025-71102 | scs: fix a wrong parameter in __scs_magic | |
| CVE-2025-71106 | fs: PM: Fix reverse check in filesystems_freeze_callback() | |
| CVE-2025-71112 | net: hns3: add VLAN id validation before using | |
| CVE-2025-71114 | via_wdt: fix critical boot hang due to unnamed resource allocation | |
| CVE-2025-71115 | um: init cpu_tasks[] earlier | |
| CVE-2025-71116 | libceph: make decode_pool() more resilient against corrupted osdmaps | |
| CVE-2025-71117 | block: Remove queue freezing from several sysfs store callbacks | |
| CVE-2025-71118 | ACPICA: Avoid walking the Namespace if start_node is NULL | |
| CVE-2025-71120 | SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf | |
| CVE-2025-71119 | powerpc/kexec: Enable SMT before waking offline CPUs | |
| CVE-2025-71121 | parisc: Do not reprogram affinitiy on ASP chip | |
| CVE-2025-71122 | iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED |
Showing top 20 of 43 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2025-71107
Anonymous User
2026-01-15 06:08:19Zaproxy alias impedit expedita quisquam pariatur exercitationem. Nemo rerum eveniet dolores rem quia dignissimos.