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CVE-2026-53055— crypto: hisilicon/sec2 - prevent req used-after-free for sec

CVSS 9.8 · Critical EPSS 0.43% · P35

Possible ATT&CK Techniques 1AI

T1211 · Exploitation for Stealth

Affected Version Matrix 8

VendorProductVersion RangeStatus
LinuxLinuxf0ae287c50455f7be0d8dd45a803d403c7aa4d2e< b375c3c7209cc59e40e97998aa9bc768369cca0eaffected
f0ae287c50455f7be0d8dd45a803d403c7aa4d2e< ad73563f3a1edbfddf2724136c6a15826b354e18affected
f0ae287c50455f7be0d8dd45a803d403c7aa4d2e< 67b53a660e6bf0da2fa8d8872e897a14d8059eafaffected
6.17affected
< 6.17unaffected
6.18.33≤ 6.18.*unaffected
7.0.10≤ 7.0.*unaffected
7.1≤ *unaffected
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I. Basic Information for CVE-2026-53055

Vulnerability Information
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Vulnerability Title
crypto: hisilicon/sec2 - prevent req used-after-free for sec
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/sec2 - prevent req used-after-free for sec During packet transmission, if the system is under heavy load, the hardware might complete processing the packet and free the request memory (req) before the transmission function finishes. If the software subsequently accesses this req, a use-after-free error will occur. The qp_ctx memory exists throughout the packet sending process, so replace the req with the qp_ctx.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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，该漏洞源于硬件在高负载下可能在传输结束前释放请求内存，导致释放后重用错误。
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 f0ae287c50455f7be0d8dd45a803d403c7aa4d2e ~ b375c3c7209cc59e40e97998aa9bc768369cca0e -
LinuxLinux 6.17 -

II. Public POCs for CVE-2026-53055

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III. Intelligence Information for CVE-2026-53055

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Patches & Fixes for CVE-2026-53055 (2)

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

CVE-2026-530029.8 CRITICALnetfilter: conntrack: remove sprintf usage
CVE-2026-529869.8 CRITICALnetfilter: nf_conntrack_sip: don't use simple_strtoul
CVE-2026-529829.8 CRITICALnet: usb: rtl8150: fix use-after-free in rtl8150_start_xmit()
CVE-2026-529899.8 CRITICALnvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers
CVE-2026-530869.8 CRITICALnet: bcmgenet: fix racing timeout handler
CVE-2026-529939.8 CRITICALtipc: fix double-free in tipc_buf_append()
CVE-2026-530459.8 CRITICALmemory: tegra124-emc: Fix dll_change check
CVE-2026-529559.8 CRITICALlibceph: Fix potential out-of-bounds access in crush_decode()
CVE-2026-530469.8 CRITICALksmbd: fix use-after-free from async crypto on Qualcomm crypto engine
CVE-2026-530499.8 CRITICALgfs2: add some missing log locking
CVE-2026-530889.8 CRITICALnet: bcmgenet: fix off-by-one in bcmgenet_put_txcb
CVE-2026-530109.8 CRITICALksmbd: fix use-after-free in smb2_open during durable reconnect
CVE-2026-529149.8 CRITICALbatman-adv: fix fragment reassembly length accounting
CVE-2026-530069.8 CRITICALipv6: fix possible UAF in icmpv6_rcv()
CVE-2026-529319.8 CRITICALbatman-adv: tp_meter: avoid use of uninit sender vars
CVE-2026-529249.8 CRITICALsctp: purge outqueue on stale COOKIE-ECHO handling
CVE-2026-529589.1 CRITICALlibceph: Fix potential out-of-bounds access in osdmap_decode()
CVE-2026-530439.1 CRITICALocfs2/dlm: validate qr_numregions in dlm_match_regions()
CVE-2026-529999.1 CRITICALnetfilter: nfnetlink_osf: fix out-of-bounds read on option matching
CVE-2026-530538.8 HIGHiommu/amd: Fix clone_alias() to use the original device's devid

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-2026-53055

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