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CVE-2023-53687— tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() when iterating clk

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s3c24xx_serial_getclk函数迭代时钟时未释放内存，可能导致内存泄漏。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1564.004 · NTFS File Attributes

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 5f5a7a5578c5885201cf9c85856f023fe8b81765< 933e5b2998bc3a527d15efbf1e97c9e63297aa3c affected
5f5a7a5578c5885201cf9c85856f023fe8b81765< 01dd8a43a84616c830782166ba3cceb01ad95363 affected
5f5a7a5578c5885201cf9c85856f023fe8b81765< 46574e5a0a2aee41e6ebb979cfe1dbaea8693e16 affected
5f5a7a5578c5885201cf9c85856f023fe8b81765< 1962717c4649e026a4252fe6625175affd28a593 affected
5f5a7a5578c5885201cf9c85856f023fe8b81765< 9dd8091959bc41fee51d0827276a2b982e84adf0 affected
5f5a7a5578c5885201cf9c85856f023fe8b81765< f0bf102ef9b05d7294bd8d506755465f6867d944 affected
5f5a7a5578c5885201cf9c85856f023fe8b81765< 1f426293fef1c13742b2a685bf7e363f51f6ee03 affected
5f5a7a5578c5885201cf9c85856f023fe8b81765< 832e231cff476102e8204a9e7bddfe5c6154a375 affected
… +10 more rows
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I. Basic Information for CVE-2023-53687

Vulnerability Information
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Vulnerability Title
tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() when iterating clk
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() when iterating clk When the best clk is searched, we iterate over all possible clk. If we find a better match, the previous one, if any, needs to be freed. If a better match has already been found, we still need to free the new one, otherwise it leaks.
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s3c24xx_serial_getclk函数迭代时钟时未释放内存，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 5f5a7a5578c5885201cf9c85856f023fe8b81765 ~ 933e5b2998bc3a527d15efbf1e97c9e63297aa3c -
Linux Linux 3.3 -

II. Public POCs for CVE-2023-53687

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III. Intelligence Information for CVE-2023-53687

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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-2023-53669 7.8 HIGH tcp: fix skb_copy_ubufs() vs BIG TCP
CVE-2022-50555 7.8 HIGH tipc: fix a null-ptr-deref in tipc_topsrv_accept
CVE-2023-53627 7.8 HIGH scsi: hisi_sas: Grab sas_dev lock when traversing the members of sas_dev.list
CVE-2023-53626 7.8 HIGH ext4: fix possible double unlock when moving a directory
CVE-2023-53660 7.8 HIGH bpf, cpumap: Handle skb as well when clean up ptr_ring
CVE-2023-53659 7.8 HIGH iavf: Fix out-of-bounds when setting channels on remove
CVE-2023-53619 7.8 HIGH netfilter: conntrack: Avoid nf_ct_helper_hash uses after free
CVE-2023-53643 7.8 HIGH nvme-tcp: don't access released socket during error recovery
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-2022-50528 7.8 HIGH drm/amdkfd: Fix memory leakage
CVE-2023-53651 7.8 HIGH Input: exc3000 - properly stop timer on shutdown
CVE-2023-53674 7.8 HIGH clk: Fix memory leak in devm_clk_notifier_register()

Showing top 20 of 118 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53687

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