CVE-2023-53537— f2fs: fix to avoid use-after-free for cached IPU bio
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I. Basic Information for CVE-2023-53537
Vulnerability Information
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Vulnerability Title
f2fs: fix to avoid use-after-free for cached IPU bio
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
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，该漏洞源于缓存IPU bio存在释放后重用问题，可能导致系统崩溃。
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
II. Public POCs for CVE-2023-53537
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Same Patch Batch · Linux · 2025-10-04 · 144 CVEs total
| CVE-2025-39946 | 9.8 CRITICAL | tls: make sure to abort the stream if headers are bogus |
| CVE-2022-50491 | coresight: cti: Fix hang in cti_disable_hw() | |
| CVE-2023-53581 | net/mlx5e: Check for NOT_READY flag state after locking | |
| CVE-2023-53580 | USB: Gadget: core: Help prevent panic during UVC unconfigure | |
| CVE-2022-50507 | fs/ntfs3: Validate data run offset | |
| CVE-2022-50508 | wifi: mt76: mt76x0: fix oob access in mt76x0_phy_get_target_power | |
| CVE-2022-50506 | drbd: only clone bio if we have a backing device | |
| CVE-2022-50504 | powerpc/rtas: avoid scheduling in rtas_os_term() | |
| CVE-2022-50505 | iommu/amd: Fix pci device refcount leak in ppr_notifier() | |
| CVE-2022-50503 | mtd: lpddr2_nvm: Fix possible null-ptr-deref | |
| CVE-2022-50501 | media: coda: Add check for dcoda_iram_alloc | |
| CVE-2022-50500 | netdevsim: fix memory leak in nsim_drv_probe() when nsim_dev_resources_register() failed | |
| CVE-2022-50499 | media: dvb-core: Fix double free in dvb_register_device() | |
| CVE-2022-50497 | binfmt_misc: fix shift-out-of-bounds in check_special_flags | |
| CVE-2022-50498 | eth: alx: take rtnl_lock on resume | |
| CVE-2022-50496 | dm cache: Fix UAF in destroy() | |
| CVE-2022-50494 | thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash | |
| CVE-2022-50493 | scsi: qla2xxx: Fix crash when I/O abort times out | |
| CVE-2022-50492 | drm/msm: fix use-after-free on probe deferral | |
| CVE-2023-53572 | clk: imx: scu: use _safe list iterator to avoid a use after free |
Showing top 20 of 144 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-2023-53537
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