f2fs: fix to drop all dirty pages during umount() if cp_error is set

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2023-54124
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-24 13:16:14 UTC
Updated2026-08-04 10:19:30 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: f2fs: fix to drop all dirty pages during umount() if cp_error is set xfstest generic/361 reports a bug as below: f2fs_bug_on(sbi, sbi->fsync_node_num); kernel BUG at fs/f2fs/super.c:1627! RIP: 0010:f2fs_put_super+0x3a8/0x3b0 Call Trace: generic_shutdown_super+0x8c/0x1b0 kill_block_super+0x2b/0x60 kill_f2fs_super+0x87/0x110 deactivate_locked_super+0x39/0x80 deactivate_super+0x46/0x50 cleanup_mnt+0x109/0x170 __cleanup_mnt+0x16/0x20 task_work_run+0x65/0xa0 exit_to_user_mode_prepare+0x175/0x190 syscall_exit_to_user_mode+0x25/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc During umount(), if cp_error is set, f2fs_wait_on_all_pages() should not stop waiting all F2FS_WB_CP_DATA pages to be writebacked, otherwise, fsync_node_num can be non-zero after f2fs_wait_on_all_pages() causing this bug. In this case, to avoid deadloop in f2fs_wait_on_all_pages(), it needs to drop all dirty pages rather than redirtying them.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.001440000 probability, percentile 0.041390000 (date 2026-08-06)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected af697c0f5c5b8798832e651baf23460d588393de 92575f05a32dafb16348bfa5e62478118a9be069 git Not specified
CNA Linux Linux affected af697c0f5c5b8798832e651baf23460d588393de 4ceedc2f8bdffb82e40b7d1bb912304f8e157cb1 git Not specified
CNA Linux Linux affected af697c0f5c5b8798832e651baf23460d588393de ad87bd313f70b51e48019d5ce2d02d73152356b3 git Not specified
CNA Linux Linux affected af697c0f5c5b8798832e651baf23460d588393de d8f4ad5f3979dbd8e6251259562f12472717883a git Not specified
CNA Linux Linux affected af697c0f5c5b8798832e651baf23460d588393de 7741ddc882a0c806a6508ba8203c55a779db7a21 git Not specified
CNA Linux Linux affected af697c0f5c5b8798832e651baf23460d588393de 82c3d6e9db41cbd3af1d4f90bdb441740b5fad10 git Not specified
CNA Linux Linux affected af697c0f5c5b8798832e651baf23460d588393de c9b3649a934d131151111354bcbb638076f03a30 git Not specified
CNA Linux Linux affected 4.19 Not specified
CNA Linux Linux unaffected 4.19 semver Not specified
CNA Linux Linux unaffected 4.19.284 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.244 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.181 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.113 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.30 6.1.* semver Not specified
CNA Linux Linux unaffected 6.3.4 6.3.* semver Not specified
CNA Linux Linux unaffected 6.4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/d8f4ad5f3979dbd8e6251259562f12472717883a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/82c3d6e9db41cbd3af1d4f90bdb441740b5fad10 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7741ddc882a0c806a6508ba8203c55a779db7a21 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ad87bd313f70b51e48019d5ce2d02d73152356b3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c9b3649a934d131151111354bcbb638076f03a30 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/92575f05a32dafb16348bfa5e62478118a9be069 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4ceedc2f8bdffb82e40b7d1bb912304f8e157cb1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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