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CVE-2025-38608— bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls

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bpf, ktls模块在使用bpf_msg_pop_data时可能导致数据损坏。

CVSS 8.6 · High EPSS 0.40% · P33

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 7246d8ed4dcce23f7509949a77be15fa9f0e3d28< 6ba20ff3cdb96a908b9dc93cf247d0b087672e7c affected
7246d8ed4dcce23f7509949a77be15fa9f0e3d28< 849d24dc5aed45ebeb3490df429356739256ac40 affected
7246d8ed4dcce23f7509949a77be15fa9f0e3d28< 73fc5d04009d3969ff8e8574f0fd769f04124e59 affected
7246d8ed4dcce23f7509949a77be15fa9f0e3d28< 16aca8bb4ad0d8a13c8b6da4007f4e52d53035bb affected
7246d8ed4dcce23f7509949a77be15fa9f0e3d28< 0e853c1464bcf61207f8b5c32d2ac5ee495e859d affected
7246d8ed4dcce23f7509949a77be15fa9f0e3d28< ee03766d79de0f61ea29ffb6ab1c7b196ea1b02e affected
7246d8ed4dcce23f7509949a77be15fa9f0e3d28< 90d6ef67440cec2a0aad71a0108c8f216437345c affected
7246d8ed4dcce23f7509949a77be15fa9f0e3d28< 1e480387d4b42776f8957fb148af9d75ce93b96d affected
… +12 more rows
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I. Basic Information for CVE-2025-38608

Vulnerability Information
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Vulnerability Title
bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls When sending plaintext data, we initially calculated the corresponding ciphertext length. However, if we later reduced the plaintext data length via socket policy, we failed to recalculate the ciphertext length. This results in transmitting buffers containing uninitialized data during ciphertext transmission. This causes uninitialized bytes to be appended after a complete "Application Data" packet, leading to errors on the receiving end when parsing TLS record.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
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bpf, ktls模块在使用bpf_msg_pop_data时可能导致数据损坏。
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 7246d8ed4dcce23f7509949a77be15fa9f0e3d28 ~ 6ba20ff3cdb96a908b9dc93cf247d0b087672e7c -
Linux Linux 5.0 -

II. Public POCs for CVE-2025-38608

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III. Intelligence Information for CVE-2025-38608

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Same Patch Batch · Linux · 2025-08-19 · 59 CVEs total

CVE-2025-38561 9.8 CRITICAL ksmbd: fix Preauh_HashValue race condition
CVE-2025-38566 9.8 CRITICAL sunrpc: fix handling of server side tls alerts
CVE-2025-38560 9.3 CRITICAL x86/sev: Evict cache lines during SNP memory validation
CVE-2025-38601 8.8 HIGH wifi: ath11k: clear initialized flag for deinit-ed srng lists
CVE-2025-38600 8.8 HIGH wifi: mt76: mt7925: fix off by one in mt7925_mcu_hw_scan()
CVE-2025-38599 8.8 HIGH wifi: mt76: mt7996: Fix possible OOB access in mt7996_tx()
CVE-2025-38592 8.8 HIGH Bluetooth: hci_devcd_dump: fix out-of-bounds via dev_coredumpv
CVE-2025-38574 8.6 HIGH pptp: ensure minimal skb length in pptp_xmit()
CVE-2025-38571 8.2 HIGH sunrpc: fix client side handling of tls alerts
CVE-2025-38586 7.8 HIGH bpf, arm64: Fix fp initialization for exception boundary
CVE-2025-38555 7.8 HIGH usb: gadget : fix use-after-free in composite_dev_cleanup()
CVE-2025-38607 7.8 HIGH bpf: handle jset (if a & b ...) as a jump in CFG computation
CVE-2025-38614 7.8 HIGH eventpoll: Fix semi-unbounded recursion
CVE-2025-38615 7.8 HIGH fs/ntfs3: cancle set bad inode after removing name fails
CVE-2025-38604 7.8 HIGH wifi: rtl818x: Kill URBs before clearing tx status queue
CVE-2025-38593 7.8 HIGH Bluetooth: hci_sync: fix double free in 'hci_discovery_filter_clear()'
CVE-2025-38595 7.8 HIGH xen: fix UAF in dmabuf_exp_from_pages()
CVE-2025-38582 7.8 HIGH RDMA/hns: Fix double destruction of rsv_qp
CVE-2025-38580 7.8 HIGH ext4: fix inode use after free in ext4_end_io_rsv_work()
CVE-2025-38579 7.8 HIGH f2fs: fix KMSAN uninit-value in extent_info usage

Showing top 20 of 59 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38608

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