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CVE-2023-54123— md/raid10: fix memleak for 'conf->bio_split'

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raid10_run错误路径中未释放conf->bio_split，可能导致内存泄漏。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux fc9977dd069e4f82fcacb262652117c488647319< 133008af833b4f2e021d2c294c29c70364a3f0ba affected
fc9977dd069e4f82fcacb262652117c488647319< b6460f68c1cc95a80d089af402be501619f228e4 affected
fc9977dd069e4f82fcacb262652117c488647319< 6361b0592b46c465ac926c1f3105d66c30d9658b affected
fc9977dd069e4f82fcacb262652117c488647319< 7f673fa34c0e3f95ee951a1bbf61791164871d2e affected
fc9977dd069e4f82fcacb262652117c488647319< b21019a220d9cac08819bb6c63000de9ee61eb9e affected
fc9977dd069e4f82fcacb262652117c488647319< 5cba3e26c073b535e4e3b825ea481fb29c53943b affected
fc9977dd069e4f82fcacb262652117c488647319< e2fec8d95353a48634b085011626ba3ec8ab8b1c affected
fc9977dd069e4f82fcacb262652117c488647319< c9ac2acde53f5385de185bccf6aaa91cf9ac1541 affected
… +10 more rows
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I. Basic Information for CVE-2023-54123

Vulnerability Information
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Vulnerability Title
md/raid10: fix memleak for 'conf->bio_split'
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix memleak for 'conf->bio_split' In the error path of raid10_run(), 'conf' need be freed, however, 'conf->bio_split' is missed and memory will be leaked. Since there are 3 places to free 'conf', factor out a helper to fix the problem.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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raid10_run错误路径中未释放conf->bio_split，可能导致内存泄漏。
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 fc9977dd069e4f82fcacb262652117c488647319 ~ 133008af833b4f2e021d2c294c29c70364a3f0ba -
Linux Linux 4.12 -

II. Public POCs for CVE-2023-54123

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III. Intelligence Information for CVE-2023-54123

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Other References for CVE-2023-54123 (4)

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

CVE-2023-54076 9.8 CRITICAL smb: client: fix missed ses refcounting
CVE-2022-50717 9.8 CRITICAL nvmet-tcp: add bounds check on Transfer Tag
CVE-2025-68745 9.8 CRITICAL scsi: qla2xxx: Clear cmds after chip reset
CVE-2025-68741 9.8 CRITICAL scsi: qla2xxx: Fix improper freeing of purex item
CVE-2023-54090 9.8 CRITICAL ixgbe: Fix panic during XDP_TX with > 64 CPUs
CVE-2023-54094 9.8 CRITICAL net: prevent skb corruption on frag list segmentation
CVE-2023-53867 9.8 CRITICAL ceph: fix potential use-after-free bug when trimming caps
CVE-2025-68359 9.8 CRITICAL btrfs: fix double free of qgroup record after failure to add delayed ref head
CVE-2025-68726 9.8 CRITICAL crypto: aead - Fix reqsize handling
CVE-2023-53996 9.3 CRITICAL x86/sev: Make enc_dec_hypercall() accept a size instead of npages
CVE-2023-54071 8.8 HIGH wifi: rtw88: use work to update rate to avoid RCU warning
CVE-2023-54060 8.8 HIGH iommufd: Set end correctly when doing batch carry
CVE-2023-54043 8.8 HIGH iommufd: Do not add the same hwpt to the ioas->hwpt_list twice
CVE-2022-50732 8.8 HIGH staging: rtl8192u: Fix use after free in ieee80211_rx()
CVE-2025-68736 8.8 HIGH landlock: Fix handling of disconnected directories
CVE-2023-54040 8.8 HIGH ice: fix wrong fallback logic for FDIR
CVE-2023-54092 8.8 HIGH KVM: s390: pv: fix index value of replaced ASCE
CVE-2023-54120 8.8 HIGH Bluetooth: Fix race condition in hidp_session_thread
CVE-2023-53986 8.6 HIGH mips: bmips: BCM6358: disable RAC flush for TP1
CVE-2022-50746 8.4 HIGH erofs: 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

V. Comments for CVE-2023-54123

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