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CVE-2026-80524— optee: ffa: Add NULL check in optee_ffa_lend_protmem

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.

在 Linux 内核中，以下漏洞已得到修复： optee: ffa: 在 中增加 NULL 指针检查 Sashiko（本地）报告称，由于未对分配得到的指针进行校验，在内存压力较大时可能引发空指针引用（null dereference）问题。 该修复通过在 函数中补充缺失的 NULL 检查来解决此问题。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.15% · P5

Possible ATT&CK Techniques 1 AI

T1069 · Permission Groups Discovery

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux 2b78d79cdf963e09ec8b90c55216b6ab5a83dbaf< 94bf4fe0e46349c4e73df66dcda073187bc90cc1 affected
2b78d79cdf963e09ec8b90c55216b6ab5a83dbaf< 650c88738ae8976f46ba71b24dd8aa311adc6fde affected
6.18 affected
< 6.18 unaffected
7.1.10≤ 7.1.* unaffected
7.2≤ * unaffected
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I. Basic Information for CVE-2026-80524

Vulnerability Information
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Vulnerability Title
optee: ffa: Add NULL check in optee_ffa_lend_protmem
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: optee: ffa: Add NULL check in optee_ffa_lend_protmem Sashiko (locally) reports a possible null dereference under memory pressure due to the lack of validation of the allocated pointer. Fix that by adding the missing check.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 2b78d79cdf963e09ec8b90c55216b6ab5a83dbaf ~ 94bf4fe0e46349c4e73df66dcda073187bc90cc1 -
Linux Linux 6.18 -

II. Public POCs for CVE-2026-80524

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III. Intelligence Information for CVE-2026-80524

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Patches & Fixes for CVE-2026-80524 (2)

Same Patch Batch · Linux · 2026-08-26 · 92 CVEs total

CVE-2026-80557 9.8 CRITICAL libceph: fix OOB read in decode_watchers() via missing bounds check
CVE-2026-80528 9.8 CRITICAL ceph: avoid fs reclaim while using current->journal_info
CVE-2026-74746 9.8 CRITICAL netfilter: flowtable: publish GC-visible tuple last
CVE-2026-80561 9.8 CRITICAL libceph: fix multiple unsafe decodes in decode_locker()
CVE-2026-74744 9.8 CRITICAL ipvlan: inherit needed_headroom and needed_tailroom from phy_dev
CVE-2026-74743 9.8 CRITICAL macvlan: inherit needed_headroom and needed_tailroom from lowerdev
CVE-2026-80558 9.8 CRITICAL libceph: Avoid using invalid osd indices from primary_temp
CVE-2026-74752 9.8 CRITICAL sctp: validate cookie AUTH state before use
CVE-2026-80587 9.8 CRITICAL mptcp: avoid combining some incoming suboptions
CVE-2026-80586 9.8 CRITICAL mptcp: options: reset DSS fields in case of unexpected size
CVE-2026-74737 9.8 CRITICAL net: ethernet: ti: am65-cpsw-nuss: Fix port_id extraction from SRC TAG
CVE-2026-80589 9.8 CRITICAL block: stop the timeout timer when releasing a never added disk
CVE-2026-80519 9.8 CRITICAL ovpn: finish crypto callback cleanup before peer release
CVE-2026-74751 9.4 CRITICAL riscv: lib: Fix ZBB strnlen reading past count boundary
CVE-2026-80585 9.4 CRITICAL mptcp: fastopen: only mark MPTFO subflows with SYN data
CVE-2026-80554 9.3 CRITICAL s390/vfio_ccw: Limit the number of channel program segments
CVE-2026-80551 9.3 CRITICAL s390/vfio_ccw: Ensure first IDAW remains constant
CVE-2026-80553 8.8 HIGH s390/vfio_ccw: Cancel existing workqueues
CVE-2026-80576 8.8 HIGH drm/amdgpu: reject oversized IBs with per-ring packet limits
CVE-2026-80547 8.8 HIGH s390/vfio_ccw: Implement a crw lock

Showing top 20 of 92 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-80524

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