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CVE-2026-23156— efivarfs: fix error propagation in efivar_entry_get()

EPSS 0.02% · P5

Affected Version Matrix 12

VendorProductVersion RangeStatus
LinuxLinux2d82e6227ea189c0589e7383a36616ac2a2d248c< 3960f1754664661a970dc9ebbab44ff93a0b4c42affected
2d82e6227ea189c0589e7383a36616ac2a2d248c< 510a16f1c5c1690b33504052bc13fbc2772c23f8affected
2d82e6227ea189c0589e7383a36616ac2a2d248c< 89b8ca709eeeabcc11ebba64806677873a2787a8affected
2d82e6227ea189c0589e7383a36616ac2a2d248c< e4e15a0a4403c96d9898d8398f0640421df9cb16affected
2d82e6227ea189c0589e7383a36616ac2a2d248c< 4b22ec1685ce1fc0d862dcda3225d852fb107995affected
6.0affected
< 6.0unaffected
6.1.162≤ 6.1.*unaffected
… +4 more rows
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I. Basic Information for CVE-2026-23156

Vulnerability Information
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Vulnerability Title
efivarfs: fix error propagation in efivar_entry_get()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: efivarfs: fix error propagation in efivar_entry_get() efivar_entry_get() always returns success even if the underlying __efivar_entry_get() fails, masking errors. This may result in uninitialized heap memory being copied to userspace in the efivarfs_file_read() path. Fix it by returning the error from __efivar_entry_get().
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和ux 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efivar_entry_get函数错误传播不当，可能导致未初始化内存泄露。
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 2d82e6227ea189c0589e7383a36616ac2a2d248c ~ 3960f1754664661a970dc9ebbab44ff93a0b4c42 -
LinuxLinux 6.0 -

II. Public POCs for CVE-2026-23156

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III. Intelligence Information for CVE-2026-23156

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Same Patch Batch · Linux · 2026-02-14 · 108 CVEs total

CVE-2026-231938.8 HIGHscsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count()
CVE-2026-231728.4 HIGHnet: wwan: t7xx: fix potential skb->frags overflow in RX path
CVE-2026-232097.8 HIGHmacvlan: fix error recovery in macvlan_common_newlink()
CVE-2026-231787.8 HIGHHID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()
CVE-2026-231847.8 HIGHbinder: fix UAF in binder_netlink_report()
CVE-2026-231857.8 HIGHwifi: iwlwifi: mld: cancel mlo_scan_start_wk
CVE-2026-231717.8 HIGHbonding: fix use-after-free due to enslave fail after slave array update
CVE-2026-231697.8 HIGHmptcp: fix race in mptcp_pm_nl_flush_addrs_doit()
CVE-2026-231917.8 HIGHALSA: aloop: Fix racy access at PCM trigger
CVE-2026-231927.8 HIGHlinkwatch: use __dev_put() in callers to prevent UAF
CVE-2026-231987.8 HIGHKVM: Don't clobber irqfd routing type when deassigning irqfd
CVE-2026-231367.5 HIGHlibceph: reset sparse-read state in osd_fault()
CVE-2026-231487.5 HIGHnvmet: fix race in nvmet_bio_done() leading to NULL pointer dereference
CVE-2026-231397.5 HIGHnetfilter: nf_conncount: update last_gc only when GC has been performed
CVE-2026-231617.3 HIGHmm/shmem, swap: fix race of truncate and swap entry split
CVE-2026-232047.1 HIGHnet/sched: cls_u32: use skb_header_pointer_careful()
CVE-2026-231957.0 HIGHcgroup/dmem: avoid pool UAF
CVE-2026-231807.0 HIGHdpaa2-switch: add bounds check for if_id in IRQ handler
CVE-2026-231757.0 HIGHnet: cpsw: Execute ndo_set_rx_mode callback in a work queue
CVE-2025-71202iommu/sva: invalidate stale IOTLB entries for kernel address space

Showing top 20 of 108 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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