CVE-2023-53537

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Source
https://cve.org/CVERecord?id=CVE-2023-53537
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53537.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-53537
Downstream
Published
2025-10-04T15:16:48Z
Modified
2026-08-12T03:51:43Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
f2fs: fix to avoid use-after-free for cached IPU bio
Details

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

f2fs: fix to avoid use-after-free for cached IPU bio

xfstest generic/019 reports a bug:

kernel BUG at mm/filemap.c:1619! RIP: 0010:folio_end_writeback+0x8a/0x90 Call Trace: end_page_writeback+0x1c/0x60 f2fs_write_end_io+0x199/0x420 bio_endio+0x104/0x180 submit_bio_noacct+0xa5/0x510 submit_bio+0x48/0x80 f2fs_submit_write_bio+0x35/0x300 f2fs_submit_merged_ipu_write+0x2a0/0x2b0 f2fs_write_single_data_page+0x838/0x8b0 f2fs_write_cache_pages+0x379/0xa30 f2fs_write_data_pages+0x30c/0x340 do_writepages+0xd8/0x1b0 __writeback_single_inode+0x44/0x370 writeback_sb_inodes+0x233/0x4d0 __writeback_inodes_wb+0x56/0xf0 wb_writeback+0x1dd/0x2d0 wb_workfn+0x367/0x4a0 process_one_work+0x21d/0x430 worker_thread+0x4e/0x3c0 kthread+0x103/0x130 ret_from_fork+0x2c/0x50

The root cause is: after cp_error is set, f2fs_submit_merged_ipu_write() in f2fs_write_single_data_page() tries to flush IPU bio in cache, however f2fs_submit_merged_ipu_write() missed to check validity of @bio parameter, result in submitting random cached bio which belong to other IO context, then it will cause use-after-free issue, fix it by adding additional validity check.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53537.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0b20fcec8651569935a10afe03fedc0b812d044e
Fixed
b2f423fda64fb49213aa0ed5056079cf295a5df2
Fixed
9a7f63283af6befc0f91d549f4f6917dff7479a9
Fixed
7d058f0ab161437369ad6e45a4b67c2886e71373
Fixed
97ec6f1788cc6bee3f8c89cb908e1a2a1cd859bb
Fixed
af4ce124d7bd74cb839bbdaccffbb416771a56b5
Fixed
5cdb422c839134273866208dad5360835ddb9794

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53537.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.180
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.111
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.28
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.2.15
Type
ECOSYSTEM
Events
Introduced
6.3.0
Fixed
6.3.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53537.json"