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CVE-2026-53016— crypto: ccp - copy IV using skcipher ivsize

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基金会开源的操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ccp_aes_complete()恢复IV时使用错误的字节数，可能导致缓冲区溢出。以下版本受到影响：3.14版本。

CVSS 7.8 · High EPSS 0.14% · P3

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 2b789435d7f36ed918d92db647f3a2f3fec9bb1f< 939061b2d0f7f15114e34b4ce878ef50ff4089c3 affected
2b789435d7f36ed918d92db647f3a2f3fec9bb1f< 798d409a8949f3f495f238549b86de2886b129bd affected
2b789435d7f36ed918d92db647f3a2f3fec9bb1f< dfb2cf434829819268fe50f41542aad318ad62b2 affected
2b789435d7f36ed918d92db647f3a2f3fec9bb1f< eecee15e263ccb8cd77170a56ab6c969cb54dd6a affected
2b789435d7f36ed918d92db647f3a2f3fec9bb1f< bb01d8f1f385bc9034ca114d3508c7fdea24fc9a affected
2b789435d7f36ed918d92db647f3a2f3fec9bb1f< df9784bb5b637ac80f4a2768a58ca9a50bef28a9 affected
2b789435d7f36ed918d92db647f3a2f3fec9bb1f< 227c1e1d9e2aa4cfc65ba446d5690da1f546cda4 affected
2b789435d7f36ed918d92db647f3a2f3fec9bb1f< a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4 affected
… +10 more rows
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I. Basic Information for CVE-2026-53016

Vulnerability Information
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Vulnerability Title
crypto: ccp - copy IV using skcipher ivsize
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - copy IV using skcipher ivsize AF_ALG rfc3686-ctr-aes-ccp requests pass an 8-byte IV to the driver. ccp_aes_complete() restores AES_BLOCK_SIZE bytes into the caller's IV buffer while RFC3686 skciphers expose an 8-byte IV, so the restore overruns the provided buffer. Use crypto_skcipher_ivsize() to copy only the algorithm's IV length.
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基金会开源的操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ccp_aes_complete()恢复IV时使用错误的字节数，可能导致缓冲区溢出。以下版本受到影响：3.14版本。
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 2b789435d7f36ed918d92db647f3a2f3fec9bb1f ~ 939061b2d0f7f15114e34b4ce878ef50ff4089c3 -
Linux Linux 3.14 -

II. Public POCs for CVE-2026-53016

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III. Intelligence Information for CVE-2026-53016

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Patches & Fixes for CVE-2026-53016 (8)

Same Patch Batch · Linux · 2026-06-24 · 219 CVEs total

CVE-2026-53049 9.8 CRITICAL gfs2: add some missing log locking
CVE-2026-52993 9.8 CRITICAL tipc: fix double-free in tipc_buf_append()
CVE-2026-52989 9.8 CRITICAL nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers
CVE-2026-52986 9.8 CRITICAL netfilter: nf_conntrack_sip: don't use simple_strtoul
CVE-2026-52982 9.8 CRITICAL net: usb: rtl8150: fix use-after-free in rtl8150_start_xmit()
CVE-2026-53002 9.8 CRITICAL netfilter: conntrack: remove sprintf usage
CVE-2026-53086 9.8 CRITICAL net: bcmgenet: fix racing timeout handler
CVE-2026-53045 9.8 CRITICAL memory: tegra124-emc: Fix dll_change check
CVE-2026-53006 9.8 CRITICAL ipv6: fix possible UAF in icmpv6_rcv()
CVE-2026-53046 9.8 CRITICAL ksmbd: fix use-after-free from async crypto on Qualcomm crypto engine
CVE-2026-52955 9.8 CRITICAL libceph: Fix potential out-of-bounds access in crush_decode()
CVE-2026-53010 9.8 CRITICAL ksmbd: fix use-after-free in smb2_open during durable reconnect
CVE-2026-53088 9.8 CRITICAL net: bcmgenet: fix off-by-one in bcmgenet_put_txcb
CVE-2026-52924 9.8 CRITICAL sctp: purge outqueue on stale COOKIE-ECHO handling
CVE-2026-52931 9.8 CRITICAL batman-adv: tp_meter: avoid use of uninit sender vars
CVE-2026-53055 9.8 CRITICAL crypto: hisilicon/sec2 - prevent req used-after-free for sec
CVE-2026-52914 9.8 CRITICAL batman-adv: fix fragment reassembly length accounting
CVE-2026-52958 9.1 CRITICAL libceph: Fix potential out-of-bounds access in osdmap_decode()
CVE-2026-53043 9.1 CRITICAL ocfs2/dlm: validate qr_numregions in dlm_match_regions()
CVE-2026-52999 9.1 CRITICAL netfilter: nfnetlink_osf: fix out-of-bounds read on option matching

Showing top 20 of 219 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-53016

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