Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1310 CNY

100%
Buy Us a Coffee

CVE-2026-46096— tpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public()

AI Predicted 7.8 Difficulty: Easy EPSS 0.02% · P6

Possible ATT&CK Techniques 1AI

T1496 · Resource Hijacking

Affected Version Matrix 11

VendorProductVersion RangeStatus
LinuxLinux20eda7c74b69fe9e1caf9b930a5c016bf8d755fa< f8775d9d9062da662cc861f9ff7722a65896d4cdaffected
bda1cbf73c6e241267c286427f2ed52b5735d872< 2f434be87e256fd58254f60ddf5d7d58e775ca0baffected
bda1cbf73c6e241267c286427f2ed52b5735d872< f0f75a3d98b7959a8677b6363e23190f3018636baffected
a3b7eb67225c486a2da357c5db3e386f4e64bcdeaffected
6.18.3< 6.18.27affected
6.12.64< 6.13affected
6.19affected
< 6.19unaffected
… +3 more rows
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-46096

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
tpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public() tpm2_read_public() calls tpm_buf_init() but fails to call tpm_buf_destroy() on two exit paths, leaking a page allocation: 1. When name_size() returns an error (unrecognized hash algorithm), the function returns directly without destroying the buffer. 2. On the success path, the buffer is never destroyed before returning. All other error paths in the function correctly call tpm_buf_destroy() before returning. Fix both by adding the missing tpm_buf_destroy() calls.
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tpm2_read_public()在错误路径和成功路径上未调用tpm_buf_destroy()，可能导致页面分配泄漏。
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 20eda7c74b69fe9e1caf9b930a5c016bf8d755fa ~ f8775d9d9062da662cc861f9ff7722a65896d4cd -
LinuxLinux 6.19 -

II. Public POCs for CVE-2026-46096

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-46096

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-46096 (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-2026-459729.8 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-2026-459889.8 CRITICALrxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-460439.1 CRITICALRDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-460568.8 HIGHBluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2026-459458.8 HIGHiommu/vt-d: Fix race condition during PASID entry replacement
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-2026-460108.1 HIGHrxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-460998.1 HIGHnet: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-460767.9 HIGHKVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-460937.8 HIGHmm/vmalloc: take vmap_purge_lock in shrinker
CVE-2026-459707.8 HIGHbonding: alb: fix UAF in rlb_arp_recv during bond up/down
CVE-2026-459807.8 HIGHaccel/amdxdna: Stop job scheduling across aie2_release_resource()
CVE-2026-459517.8 HIGHbpf: Fix a potential use-after-free of BTF object
CVE-2026-458527.8 HIGHRDMA/rxe: Fix double free in rxe_srq_from_init
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-2026-460657.8 HIGHfbdev: defio: Disconnect deferred I/O from the lifetime of struct fb_info

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46096

No comments yet

Leave a comment