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CVE-2023-54068— f2fs: compress: fix to call f2fs_wait_on_page_writeback() in f2fs_write_raw_pages()

CVSS 7.8 · High EPSS 0.15% · P5

Possible ATT&CK Techniques 1AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 14

VendorProductVersion RangeStatus
LinuxLinux4c8ff7095bef64fc47e996a938f7d57f9e077da3< a8226a45b2a9ce83ba7a167a387a00fecc319e71affected
4c8ff7095bef64fc47e996a938f7d57f9e077da3< 169134da419cb8ffbe3b0743bc24573e16952ea9affected
4c8ff7095bef64fc47e996a938f7d57f9e077da3< 6604df2a9d07ba8f8fb1ac14046c2c83776faa4faffected
4c8ff7095bef64fc47e996a938f7d57f9e077da3< 9940877c4fe752923a53f0f7372f2f152b6eccf0affected
4c8ff7095bef64fc47e996a938f7d57f9e077da3< ad31eed06c3b4d63b2d38322a271d4009aee4bb3affected
4c8ff7095bef64fc47e996a938f7d57f9e077da3< babedcbac164cec970872b8097401ca913a80e61affected
5.6affected
< 5.6unaffected
… +6 more rows
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I. Basic Information for CVE-2023-54068

Vulnerability Information
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Vulnerability Title
f2fs: compress: fix to call f2fs_wait_on_page_writeback() in f2fs_write_raw_pages()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to call f2fs_wait_on_page_writeback() in f2fs_write_raw_pages() BUG_ON() will be triggered when writing files concurrently, because the same page is writtenback multiple times. 1597 void folio_end_writeback(struct folio *folio) 1598 { ...... 1618 if (!__folio_end_writeback(folio)) 1619 BUG(); ...... 1625 } kernel BUG at mm/filemap.c:1619! Call Trace: <TASK> f2fs_write_end_io+0x1a0/0x370 blk_update_request+0x6c/0x410 blk_mq_end_request+0x15/0x130 blk_complete_reqs+0x3c/0x50 __do_softirq+0xb8/0x29b ? sort_range+0x20/0x20 run_ksoftirqd+0x19/0x20 smpboot_thread_fn+0x10b/0x1d0 kthread+0xde/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30 </TASK> Below is the concurrency scenario: [Process A] [Process B] [Process C] f2fs_write_raw_pages() - redirty_page_for_writepage() - unlock page() f2fs_do_write_data_page() - lock_page() - clear_page_dirty_for_io() - set_page_writeback() [1st writeback] ..... - unlock page() generic_perform_write() - f2fs_write_begin() - wait_for_stable_page() - f2fs_write_end() - set_page_dirty() - lock_page() - f2fs_do_write_data_page() - set_page_writeback() [2st writeback] This problem was introduced by the previous commit 7377e853967b ("f2fs: compress: fix potential deadlock of compress file"). All pagelocks were released in f2fs_write_raw_pages(), but whether the page was in the writeback state was ignored in the subsequent writing process. Let's fix it by waiting for the page to writeback before writing.
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，该漏洞源于未等待页面回写完成，可能导致同一页面多次回写并触发BUG_ON。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 4c8ff7095bef64fc47e996a938f7d57f9e077da3 ~ a8226a45b2a9ce83ba7a167a387a00fecc319e71 -
LinuxLinux 5.6 -

II. Public POCs for CVE-2023-54068

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III. Intelligence Information for CVE-2023-54068

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Other References for CVE-2023-54068 (4)

Same Patch Batch · Linux · 2025-12-24 · 322 CVEs total

CVE-2025-687419.8 CRITICALscsi: qla2xxx: Fix improper freeing of purex item
CVE-2023-538679.8 CRITICALceph: fix potential use-after-free bug when trimming caps
CVE-2025-687269.8 CRITICALcrypto: aead - Fix reqsize handling
CVE-2025-687459.8 CRITICALscsi: qla2xxx: Clear cmds after chip reset
CVE-2023-540949.8 CRITICALnet: prevent skb corruption on frag list segmentation
CVE-2023-540909.8 CRITICALixgbe: Fix panic during XDP_TX with > 64 CPUs
CVE-2022-507179.8 CRITICALnvmet-tcp: add bounds check on Transfer Tag
CVE-2023-540769.8 CRITICALsmb: client: fix missed ses refcounting
CVE-2025-683599.8 CRITICALbtrfs: fix double free of qgroup record after failure to add delayed ref head
CVE-2023-539969.3 CRITICALx86/sev: Make enc_dec_hypercall() accept a size instead of npages
CVE-2023-540718.8 HIGHwifi: rtw88: use work to update rate to avoid RCU warning
CVE-2023-541208.8 HIGHBluetooth: Fix race condition in hidp_session_thread
CVE-2023-540438.8 HIGHiommufd: Do not add the same hwpt to the ioas->hwpt_list twice
CVE-2022-507328.8 HIGHstaging: rtl8192u: Fix use after free in ieee80211_rx()
CVE-2023-540928.8 HIGHKVM: s390: pv: fix index value of replaced ASCE
CVE-2023-540608.8 HIGHiommufd: Set end correctly when doing batch carry
CVE-2023-540408.8 HIGHice: fix wrong fallback logic for FDIR
CVE-2025-687368.8 HIGHlandlock: Fix handling of disconnected directories
CVE-2023-539868.6 HIGHmips: bmips: BCM6358: disable RAC flush for TP1
CVE-2022-507468.4 HIGHerofs: validate the extent length for uncompressed pclusters

Showing top 20 of 322 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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