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CVE-2025-68808— media: vidtv: initialize local pointers upon transfer of memory ownership

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，该漏洞源于转移内存所有权后未将本地指针初始化为NULL，可能导致释放后重用和双重释放。

CVSS 7.8 · High EPSS 0.13% · P3

Possible ATT&CK Techniques 1 AI

T1135 · Network Share Discovery

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 3be8037960bccd13052cfdeba8805ad785041d70< c342e294dac4988c8ada759b2f057246e48c5108 affected
3be8037960bccd13052cfdeba8805ad785041d70< 12ab6ebb37789b84073e83e4d9b14a5e0d133323 affected
3be8037960bccd13052cfdeba8805ad785041d70< 3caa18d35f1dabe85a3dd31bc387f391ac9f9b4e affected
3be8037960bccd13052cfdeba8805ad785041d70< fb9bd6d8d314b748e946ed6555eb4a956ee8c4d8 affected
3be8037960bccd13052cfdeba8805ad785041d70< a69c7fd603bf5ad93177394fbd9711922ee81032 affected
3be8037960bccd13052cfdeba8805ad785041d70< 30f4d4e5224a9e44e9ceb3956489462319d804ce affected
3be8037960bccd13052cfdeba8805ad785041d70< 98aabfe2d79f74613abc2b0b1cef08f97eaf5322 affected
5.10 affected
… +8 more rows
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I. Basic Information for CVE-2025-68808

Vulnerability Information
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Vulnerability Title
media: vidtv: initialize local pointers upon transfer of memory ownership
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: vidtv: initialize local pointers upon transfer of memory ownership vidtv_channel_si_init() creates a temporary list (program, service, event) and ownership of the memory itself is transferred to the PAT/SDT/EIT tables through vidtv_psi_pat_program_assign(), vidtv_psi_sdt_service_assign(), vidtv_psi_eit_event_assign(). The problem here is that the local pointer where the memory ownership transfer was completed is not initialized to NULL. This causes the vidtv_psi_pmt_create_sec_for_each_pat_entry() function to fail, and in the flow that jumps to free_eit, the memory that was freed by vidtv_psi_*_table_destroy() can be accessed again by vidtv_psi_*_event_destroy() due to the uninitialized local pointer, so it is freed once again. Therefore, to prevent use-after-free and double-free vulnerability, local pointers must be initialized to NULL when transferring memory ownership.
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，该漏洞源于转移内存所有权后未将本地指针初始化为NULL，可能导致释放后重用和双重释放。
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 3be8037960bccd13052cfdeba8805ad785041d70 ~ c342e294dac4988c8ada759b2f057246e48c5108 -
Linux Linux 5.10 -

II. Public POCs for CVE-2025-68808

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III. Intelligence Information for CVE-2025-68808

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Same Patch Batch · Linux · 2026-01-13 · 93 CVEs total

CVE-2025-71068 9.8 CRITICAL svcrdma: bound check rq_pages index in inline path
CVE-2025-68794 9.8 CRITICAL iomap: adjust read range correctly for non-block-aligned positions
CVE-2025-68811 9.8 CRITICAL svcrdma: use rc_pageoff for memcpy byte offset
CVE-2025-68817 9.8 CRITICAL ksmbd: fix use-after-free in ksmbd_tree_connect_put under concurrency
CVE-2025-68775 9.8 CRITICAL net/handshake: duplicate handshake cancellations leak socket
CVE-2025-68809 9.1 CRITICAL ksmbd: vfs: fix race on m_flags in vfs_cache
CVE-2025-71093 9.1 CRITICAL e1000: fix OOB in e1000_tbi_should_accept()
CVE-2025-71095 9.1 CRITICAL net: stmmac: fix the crash issue for zero copy XDP_TX action
CVE-2025-68818 8.8 HIGH scsi: Revert "scsi: qla2xxx: Perform lockless command completion in abort path"
CVE-2025-71072 8.2 HIGH shmem: fix recovery on rename failures
CVE-2025-68799 8.1 HIGH caif: fix integer underflow in cffrml_receive()
CVE-2025-68803 8.0 HIGH NFSD: NFSv4 file creation neglects setting ACL
CVE-2025-71078 7.8 HIGH powerpc/64s/slb: Fix SLB multihit issue during SLB preload
CVE-2025-68801 7.8 HIGH mlxsw: spectrum_router: Fix neighbour use-after-free
CVE-2025-71082 7.8 HIGH Bluetooth: btusb: revert use of devm_kzalloc in btusb
CVE-2025-68795 7.8 HIGH ethtool: Avoid overflowing userspace buffer on stats query
CVE-2025-68793 7.8 HIGH drm/amdgpu: fix a job->pasid access race in gpu recovery
CVE-2025-68822 7.8 HIGH Input: alps - fix use-after-free bugs caused by dev3_register_work
CVE-2025-68792 7.8 HIGH tpm2-sessions: Fix out of range indexing in name_size
CVE-2025-71066 7.8 HIGH net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change

Showing top 20 of 93 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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