CVE-2023-53626— ext4: fix possible double unlock when moving a directory
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，该漏洞源于移动目录时可能发生双重解锁。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 11
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 8dac5a63cf79707b547ea3d425fead5f4482198f< c16cbd8233d6c58fc488545393e49b5d55729990 |
affected |
0c440f14558bfacd22c6935ae1fd4b2a09e96b5d< 020166bc6669ca9fb267ebd96bd88c4fb64a5d46 |
affected | ||
c50fc503ee1b97f12c98e26afc39fdaebebcf04f< 1c93c42c7bb23057bde8a0a2ab834927ff64d20c |
affected | ||
b0bb13612292ca90fa4c2a7e425375649bc50d3e< e71eb4dca41f0f36823724ced0406bb2dbdd5506 |
affected | ||
291cd19d107e197306869cb3237c1bba62d13182< 43ce288ab5d7274a4a141d7f5e3ed2ab7b41f8a2 |
affected | ||
0813299c586b175d7edb25f56412c54b812d0379< 70e42feab2e20618ddd0cbfc4ab4b08628236ecd |
affected | ||
5.4.237< 5.4.238 |
affected | ||
5.10.175< 5.10.176 |
affected | ||
| … +3 more rows | |||
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I. Basic Information for CVE-2023-53626
Vulnerability Information
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Vulnerability Title
ext4: fix possible double unlock when moving a directory
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix possible double unlock when moving a directory
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，该漏洞源于移动目录时可能发生双重解锁。
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-2023-53626
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · Linux · 2025-10-07 · 118 CVEs total
| CVE-2023-53629 | 9.8 CRITICAL | fs: dlm: fix use after free in midcomms commit |
| CVE-2023-53630 | 8.8 HIGH | iommufd: Fix unpinning of pages when an access is present |
| CVE-2023-53676 | 8.8 HIGH | scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() |
| CVE-2023-53675 | 8.8 HIGH | scsi: ses: Fix possible desc_ptr out-of-bounds accesses |
| CVE-2023-53673 | 8.8 HIGH | Bluetooth: hci_event: call disconnect callback before deleting conn |
| CVE-2023-53679 | 8.3 HIGH | wifi: mt7601u: fix an integer underflow |
| CVE-2023-53635 | 8.2 HIGH | netfilter: conntrack: fix wrong ct->timeout value |
| CVE-2022-50555 | 7.8 HIGH | tipc: fix a null-ptr-deref in tipc_topsrv_accept |
| CVE-2023-53619 | 7.8 HIGH | netfilter: conntrack: Avoid nf_ct_helper_hash uses after free |
| CVE-2023-53659 | 7.8 HIGH | iavf: Fix out-of-bounds when setting channels on remove |
| CVE-2023-53643 | 7.8 HIGH | nvme-tcp: don't access released socket during error recovery |
| CVE-2023-53660 | 7.8 HIGH | bpf, cpumap: Handle skb as well when clean up ptr_ring |
| CVE-2023-53645 | 7.8 HIGH | bpf: Make bpf_refcount_acquire fallible for non-owning refs |
| CVE-2023-53646 | 7.8 HIGH | drm/i915/perf: add sentinel to xehp_oa_b_counters |
| CVE-2023-53669 | 7.8 HIGH | tcp: fix skb_copy_ubufs() vs BIG TCP |
| CVE-2023-53627 | 7.8 HIGH | scsi: hisi_sas: Grab sas_dev lock when traversing the members of sas_dev.list |
| CVE-2022-50528 | 7.8 HIGH | drm/amdkfd: Fix memory leakage |
| CVE-2022-50517 | 7.8 HIGH | mm/huge_memory: do not clobber swp_entry_t during THP split |
| CVE-2022-50518 | 7.8 HIGH | parisc: Fix locking in pdc_iodc_print() firmware call |
| CVE-2022-50543 | 7.8 HIGH | RDMA/rxe: Fix mr->map double free |
Showing top 20 of 118 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
-
CVE-2023-7356
Bluetooth: ISO: Copy BASE if service data matches EIR_BAA_SE -
CVE-2026-98869
bpf: Infer zext_dst based on static register liveness analys -
CVE-2026-98868
dm-pcache: reject a kset that overruns its segment -
CVE-2026-98867
dm-pcache: bound the logical key offset from persistent memo -
CVE-2026-98866
sched/cache: Introduce task_struct->sched_cache_grp to fix U
Same vendor: Linux
-
CVE-2023-7356
Bluetooth: ISO: Copy BASE if service data matches EIR_BAA_SE -
CVE-2026-98869
bpf: Infer zext_dst based on static register liveness analys -
CVE-2026-98868
dm-pcache: reject a kset that overruns its segment -
CVE-2026-98867
dm-pcache: bound the logical key offset from persistent memo -
CVE-2026-98866
sched/cache: Introduce task_struct->sched_cache_grp to fix U
V. Comments for CVE-2023-53626
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