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CVE-2026-64316— crypto: caam - use print_hex_dump_devel to guard key hex dumps

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基金会开源的一款操作系统内核。 Linux kernel 5.3版本存在安全漏洞，该漏洞源于使用print_hex_dump_devel()转储敏感密钥材料时，在CONFIG_DYNAMIC_DEBUG启用情况下可能导致秘密泄露。

AI Predicted 6.5 Difficulty: Trivial EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1003 · OS Credential Dumping

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 6e005503199b9bf1b385949c05897fd6567b5af4< 45c0e3615e5bca5f1fc93357af8d19975c092d4f affected
6e005503199b9bf1b385949c05897fd6567b5af4< 8b56ba10105ca34a4b75f7e33d41d96a63815591 affected
6e005503199b9bf1b385949c05897fd6567b5af4< 9a53dc0a0ae0486e164e5af3de5f99ab42c5a23e affected
6e005503199b9bf1b385949c05897fd6567b5af4< ebd37eef6e4f435e18829c0c0c9ba3a6618cb2dd affected
6e005503199b9bf1b385949c05897fd6567b5af4< cea7302d5d05df74cfb4107897b1ca34163c06b9 affected
6e005503199b9bf1b385949c05897fd6567b5af4< 6f7b8e0321f3a8fbbd267d2ac15c671ab59e919e affected
6e005503199b9bf1b385949c05897fd6567b5af4< 8cf5fb0503129e53052fe29302379cf83891d0fb affected
6e005503199b9bf1b385949c05897fd6567b5af4< 3f57657b6ea23f933371f2c2846322f441773cee affected
… +10 more rows
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I. Basic Information for CVE-2026-64316

Vulnerability Information
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Vulnerability Title
crypto: caam - use print_hex_dump_devel to guard key hex dumps
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: caam - use print_hex_dump_devel to guard key hex dumps Use print_hex_dump_devel() for dumping sensitive key material in *_setkey() and gen_split_key() to avoid leaking secrets at runtime when CONFIG_DYNAMIC_DEBUG is enabled.
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基金会开源的一款操作系统内核。 Linux kernel 5.3版本存在安全漏洞，该漏洞源于使用print_hex_dump_devel()转储敏感密钥材料时，在CONFIG_DYNAMIC_DEBUG启用情况下可能导致秘密泄露。
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 6e005503199b9bf1b385949c05897fd6567b5af4 ~ 45c0e3615e5bca5f1fc93357af8d19975c092d4f -
Linux Linux 5.3 -

II. Public POCs for CVE-2026-64316

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III. Intelligence Information for CVE-2026-64316

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Patches & Fixes for CVE-2026-64316 (8)

Same Patch Batch · Linux · 2026-07-25 · 274 CVEs total

CVE-2026-64355 9.8 CRITICAL bpf: Reject fragmented frames in devmap
CVE-2026-64459 9.8 CRITICAL tcp: restore RCU grace period in tcp_ao_destroy_sock
CVE-2026-64303 9.8 CRITICAL spi: fsl-lpspi: terminate the RX channel on TX prepare failure path
CVE-2026-64439 9.8 CRITICAL crypto: krb5 - filter out async aead implementations at alloc
CVE-2026-64410 9.8 CRITICAL netfilter: flowtable: IPIP tunnel hardware offload is not yet support
CVE-2026-64399 9.8 CRITICAL ksmbd: add permission checks for FSCTL_DUPLICATE_EXTENTS_TO_FILE
CVE-2026-64397 9.8 CRITICAL ksmbd: serialize QUERY_DIRECTORY requests per file
CVE-2026-64391 9.8 CRITICAL ksmbd: use opener credentials for ADS I/O
CVE-2026-64387 9.8 CRITICAL smb: client: fix query directory replay double-free
CVE-2026-64386 9.8 CRITICAL smb: client: fix query_info() replay double-free
CVE-2026-64385 9.8 CRITICAL smb: client: fix double-free in SMB2_ioctl() replay
CVE-2026-64383 9.8 CRITICAL smb: client: fix double-free in SMB2_flush() replay
CVE-2026-64384 9.8 CRITICAL smb: client: fix change notify replay double-free
CVE-2026-64268 9.8 CRITICAL RDMA/siw: bound Read Response placement to the RREAD length
CVE-2026-64523 9.8 CRITICAL net/handshake: Take a long-lived file reference at submit
CVE-2026-64269 9.1 CRITICAL RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg
CVE-2026-64320 9.1 CRITICAL nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page
CVE-2026-64319 9.1 CRITICAL nvmet-auth: validate reply message payload bounds against transfer length
CVE-2026-64257 9.1 CRITICAL smb: client: reject overlapping data areas in SMB2 responses
CVE-2026-64393 9.1 CRITICAL ksmbd: run set info with opener credentials

Showing top 20 of 274 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-64316

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