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CVE-2026-45959— crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree

CVSS 7.8 · High EPSS 0.01% · P2

Possible ATT&CK Techniques 1AI

T1206

Affected Version Matrix 8

VendorProductVersion RangeStatus
LinuxLinuxa71475582ada92ba021852bf3c2b40ab3718549b< 9a3ace9b010ffd8c422c97844ae152f7c53d6b18affected
a71475582ada92ba021852bf3c2b40ab3718549b< 90f9090e3e744a8fe3bb6fa0e61f577347728b0baffected
a71475582ada92ba021852bf3c2b40ab3718549b< d5abcc33ee76bc26d58b39dc1a097e43a99dd438affected
6.17affected
< 6.17unaffected
6.18.14≤ 6.18.*unaffected
6.19.4≤ 6.19.*unaffected
7.0≤ *unaffected
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I. Basic Information for CVE-2026-45959

Vulnerability Information
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Vulnerability Title
crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree Annotating a local pointer variable, which will be assigned with the kmalloc-family functions, with the `__cleanup(kfree)` attribute will make the address of the local variable, rather than the address returned by kmalloc, passed to kfree directly and lead to a crash due to invalid deallocation of stack address. According to other places in the repo, the correct usage should be `__free(kfree)`. The code coincidentally compiled because the parameter type `void *` of kfree is compatible with the desired type `struct { ... } **`.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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crypto/ccp驱动中错误使用__cleanup(kfree)属性导致kfree接收栈地址，可能导致崩溃。
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 a71475582ada92ba021852bf3c2b40ab3718549b ~ 9a3ace9b010ffd8c422c97844ae152f7c53d6b18 -
LinuxLinux 6.17 -

II. Public POCs for CVE-2026-45959

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III. Intelligence Information for CVE-2026-45959

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Patches & Fixes for CVE-2026-45959 (3)

Same Patch Batch · Linux · 2026-05-27 · 276 CVEs total

CVE-2026-458989.8 CRITICALRDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-459889.8 CRITICALrxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-459729.8 CRITICALsmb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-460399.8 CRITICALrxgk: Fix potential integer overflow in length check
CVE-2026-460439.1 CRITICALRDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-459458.8 HIGHiommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-460568.8 HIGHBluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2026-460378.2 HIGHipv4: icmp: validate reply type before using icmp_pointers
CVE-2026-458438.2 HIGHslip: bound decode() reads against the compressed packet length
CVE-2026-460998.1 HIGHnet: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-460108.1 HIGHrxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-460767.9 HIGHKVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-460657.8 HIGHfbdev: defio: Disconnect deferred I/O from the lifetime of struct fb_info
CVE-2026-460367.8 HIGHvfio/cdx: Serialize VFIO_DEVICE_SET_IRQS with a per-device mutex
CVE-2026-459317.8 HIGHaccel/amdxdna: Hold mm structure across iommu_sva_unbind_device()
CVE-2026-459297.8 HIGHovpn: fix possible use-after-free in ovpn_net_xmit
CVE-2026-458527.8 HIGHRDMA/rxe: Fix double free in rxe_srq_from_init
CVE-2026-458617.8 HIGHgfs2: Fix slab-use-after-free in qd_put
CVE-2026-460627.8 HIGHntfs3: fix integer overflow in run_unpack() volume boundary check
CVE-2026-458627.8 HIGHiommu/vt-d: Flush cache for PASID table before using it

Showing top 20 of 276 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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