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CVE-2026-46291— crypto: caam - guard HMAC key hex dumps in hash_digest_key

AI Predicted 5.3 Difficulty: Theoretical EPSS 0.17% · P6

Possible ATT&CK Techniques 1AI

T1081

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinux045e36780f11523e26d1e4a8c78bdc57f4003bd0< e8e72fdf47bd5ef7abe642b034c6178a61a8580aaffected
045e36780f11523e26d1e4a8c78bdc57f4003bd0< cd849c07b8d706425e60a4dfcef54b7b67c967ceaffected
045e36780f11523e26d1e4a8c78bdc57f4003bd0< a9207798fe619cbc85c8744a9b9e2af1db2b6e1aaffected
045e36780f11523e26d1e4a8c78bdc57f4003bd0< 2adbfca7452eeac45117b8e803288a2767f7075faffected
045e36780f11523e26d1e4a8c78bdc57f4003bd0< c7e52fe3f7901ccb9cd29b3f7c683d809ba87e48affected
045e36780f11523e26d1e4a8c78bdc57f4003bd0< 5cffe3c136891aa4d579bf5c079a68f7cb371b0caffected
045e36780f11523e26d1e4a8c78bdc57f4003bd0< b8f12d9b00c1950779e5679b9c13908584682bb6affected
045e36780f11523e26d1e4a8c78bdc57f4003bd0< 177730a273b18e195263ed953853273e901b5064affected
… +10 more rows
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I. Basic Information for CVE-2026-46291

Vulnerability Information
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Vulnerability Title
crypto: caam - guard HMAC key hex dumps in hash_digest_key
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: caam - guard HMAC key hex dumps in hash_digest_key Use print_hex_dump_devel() for dumping sensitive HMAC key bytes in hash_digest_key() to avoid leaking secrets at runtime when CONFIG_DYNAMIC_DEBUG is enabled.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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caam驱动中HMAC密钥十六进制转储，可能导致密钥泄露。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 045e36780f11523e26d1e4a8c78bdc57f4003bd0 ~ e8e72fdf47bd5ef7abe642b034c6178a61a8580a -
LinuxLinux 3.6 -

II. Public POCs for CVE-2026-46291

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III. Intelligence Information for CVE-2026-46291

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Patches & Fixes for CVE-2026-46291 (8)

Same Patch Batch · Linux · 2026-06-08 · 41 CVEs total

CVE-2026-462899.8 CRITICALlib/scatterlist: fix length calculations in extract_kvec_to_sg
CVE-2026-462888.4 HIGHof: unittest: fix use-after-free in of_unittest_changeset()
CVE-2026-463078.3 HIGHwifi: ath5k: do not access array OOB
CVE-2026-463038.2 HIGHisofs: validate Rock Ridge CE continuation extent against volume size
CVE-2026-462747.8 HIGHio-wq: check that the predecessor is hashed in io_wq_remove_pending()
CVE-2026-463117.8 HIGHdrm/amdgpu/userq: fix access to stale wptr mapping
CVE-2026-462757.8 HIGHBluetooth: hci_uart: fix UAFs and race conditions in close and init paths
CVE-2026-462777.8 HIGHmm/zone_device: do not touch device folio after calling ->folio_free()
CVE-2026-462807.8 HIGHlib: test_hmm: evict device pages on file close to avoid use-after-free
CVE-2026-463067.5 HIGHflow_dissector: do not dissect PPPoE PFC frames
CVE-2026-463047.5 HIGHnvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free
CVE-2026-462997.0 HIGHhfsplus: fix held lock freed on hfsplus_fill_super()
CVE-2026-46287net: txgbe: fix RTNL assertion warning when remove module
CVE-2026-46286leds: qcom-lpg: Check for array overflow when selecting the high resolution
CVE-2026-46279mm/alloc_tag: clear codetag for pages allocated before page_ext initialization
CVE-2026-46285mtd: docg3: fix use-after-free in docg3_release()
CVE-2026-46284mm/hugetlb: fix early boot crash on parameters without '=' separator
CVE-2026-46283tpm: Use kfree_sensitive() to free auth session in tpm_dev_release()
CVE-2026-46282iio: frequency: admv1013: fix NULL pointer dereference on str
CVE-2026-46281vmalloc: fix buffer overflow in vrealloc_node_align()

Showing top 20 of 41 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46291

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