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CVE-2023-54317— dm flakey: don't corrupt the zero page

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于损坏了零页内容，可能导致用户空间程序崩溃。

CVSS 7.8 · High EPSS 0.15% · P4

Affected Version Matrix 22

VendorProduct Version RangeStatus
Linux Linux c6cd92fcabd6cc78bb1808c6a18245c842722fc1< b7f8892f672222dbfcc721f51edc03963212b249 affected
d4c637af2e56ee1ec66ee34d0ac5a13c75911aec< 98e311be44dbe31ad9c42aa067b2359bac451fda affected
a00f5276e26636cbf72f24f79831026d2e2868e7< 3c4a56ef7c538d16c1738ba0ccea9e7146105b5a affected
a00f5276e26636cbf72f24f79831026d2e2868e7< f2b478228bfdd11e358c5bc197561331f5d5c394 affected
a00f5276e26636cbf72f24f79831026d2e2868e7< ff60b2bb680ebcaf8890814dd51084a022891469 affected
a00f5276e26636cbf72f24f79831026d2e2868e7< be360c83f2d810493c04f999d69ec9152981e0c0 affected
a00f5276e26636cbf72f24f79831026d2e2868e7< 63d31617883d64b43b0e2d529f0751f40713ecae affected
a00f5276e26636cbf72f24f79831026d2e2868e7< f50714b57aecb6b3dc81d578e295f86d9c73f078 affected
… +14 more rows
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I. Basic Information for CVE-2023-54317

Vulnerability Information
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Vulnerability Title
dm flakey: don't corrupt the zero page
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: dm flakey: don't corrupt the zero page When we need to zero some range on a block device, the function __blkdev_issue_zero_pages submits a write bio with the bio vector pointing to the zero page. If we use dm-flakey with corrupt bio writes option, it will corrupt the content of the zero page which results in crashes of various userspace programs. Glibc assumes that memory returned by mmap is zeroed and it uses it for calloc implementation; if the newly mapped memory is not zeroed, calloc will return non-zeroed memory. Fix this bug by testing if the page is equal to ZERO_PAGE(0) and avoiding the corruption in this case.
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，该漏洞源于损坏了零页内容，可能导致用户空间程序崩溃。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux c6cd92fcabd6cc78bb1808c6a18245c842722fc1 ~ b7f8892f672222dbfcc721f51edc03963212b249 -
Linux Linux 5.0 -

II. Public POCs for CVE-2023-54317

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III. Intelligence Information for CVE-2023-54317

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Other References for CVE-2023-54317 (8)

Same Patch Batch · Linux · 2025-12-30 · 244 CVEs total

CVE-2023-54184 9.8 CRITICAL scsi: target: iscsit: Free cmds before session free
CVE-2023-54223 9.8 CRITICAL net/mlx5e: xsk: Fix invalid buffer access for legacy rq
CVE-2023-54237 9.8 CRITICAL net/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()
CVE-2023-54257 9.8 CRITICAL net: macb: fix a memory corruption in extended buffer descriptor mode
CVE-2023-54258 9.8 CRITICAL cifs: fix potential oops in cifs_oplock_break
CVE-2023-54269 9.8 CRITICAL SUNRPC: double free xprt_ctxt while still in use
CVE-2023-54280 9.8 CRITICAL cifs: fix potential race when tree connecting ipc
CVE-2023-54292 9.8 CRITICAL RDMA/irdma: Fix data race on CQP request done
CVE-2023-54203 9.1 CRITICAL ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr
CVE-2023-54162 8.8 HIGH ksmbd: fix possible memory leak in smb2_lock()
CVE-2023-54318 8.8 HIGH net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add
CVE-2023-54214 8.8 HIGH Bluetooth: L2CAP: Fix potential user-after-free
CVE-2022-50880 8.8 HIGH wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state()
CVE-2023-54262 8.8 HIGH net/mlx5e: Don't clone flow post action attributes second time
CVE-2023-54250 8.2 HIGH ksmbd: avoid out of bounds access in decode_preauth_ctxt()
CVE-2023-54164 8.0 HIGH Bluetooth: ISO: fix iso_conn related locking and validity issues
CVE-2023-54210 7.8 HIGH Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()
CVE-2023-54243 7.8 HIGH netfilter: ebtables: fix table blob use-after-free
CVE-2023-54206 7.8 HIGH net/sched: flower: fix filter idr initialization
CVE-2023-54201 7.8 HIGH RDMA/efa: Fix wrong resources deallocation order

Showing top 20 of 244 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-54317

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