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CVE-2026-46258— gpio: cdev: Avoid NULL dereference in linehandle_create()

AI Predicted 5.5 Difficulty: Moderate EPSS 0.10% · P1

Possible ATT&CK Techniques 1AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 6

VendorProductVersion RangeStatus
LinuxLinuxda7e394bf58f94e9783379fef7c7fb4411b03208< 87b9d7a4cfbed5f42af440372026270af997c766affected
da7e394bf58f94e9783379fef7c7fb4411b03208< 6af6be278e3ba2ffb6af5b796c89dfb3f5d9063eaffected
6.19affected
< 6.19unaffected
6.19.4≤ 6.19.*unaffected
7.0≤ *unaffected
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I. Basic Information for CVE-2026-46258

Vulnerability Information
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Vulnerability Title
gpio: cdev: Avoid NULL dereference in linehandle_create()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: gpio: cdev: Avoid NULL dereference in linehandle_create() In linehandle_create(), there is a statement like this: retain_and_null_ptr(lh); Soon after, there is a debug printout that dereferences "lh", which will crash things. Avoid the crash by using handlereq.lines, which is the same value.
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gpio cdev模块在linehandle_create函数中retain_and_null_ptr后解引用lh指针，可能导致空指针取消引用。
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 da7e394bf58f94e9783379fef7c7fb4411b03208 ~ 87b9d7a4cfbed5f42af440372026270af997c766 -
LinuxLinux 6.19 -

II. Public POCs for CVE-2026-46258

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III. Intelligence Information for CVE-2026-46258

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Patches & Fixes for CVE-2026-46258 (2)

Same Patch Batch · Linux · 2026-06-03 · 32 CVEs total

CVE-2026-462449.1 CRITICALnetfilter: nft_inner: Fix IPv6 inner_thoff desync
CVE-2026-462669.1 CRITICALinet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP
CVE-2026-462648.8 HIGHdrm/xe/pf: Fix sysfs initialization
CVE-2026-462738.6 HIGHibmveth: Disable GSO for packets with small MSS
CVE-2026-462518.4 HIGHbtrfs: fix block_group_tree dirty_list corruption
CVE-2026-462708.4 HIGHpower: supply: rt9455: Fix use-after-free in power_supply_changed()
CVE-2026-462637.8 HIGHdrm/amd/display: Fix out-of-bounds stream encoder index v3
CVE-2026-462607.8 HIGHipv6: Fix out-of-bound access in fib6_add_rt2node().
CVE-2026-462597.8 HIGHprocfs: fix missing RCU protection when reading real_parent in do_task_stat()
CVE-2026-462717.8 HIGHwifi: ath12k: do WoW offloads only on primary link
CVE-2026-462537.8 HIGHpstore/ram: fix buffer overflow in persistent_ram_save_old()
CVE-2026-462657.5 HIGHRDMA/hns: Fix WQ_MEM_RECLAIM warning
CVE-2026-462507.3 HIGHMIPS: Work around LLVM bug when gp is used as global register variable
CVE-2025-71314drm/panthor: Recover from panthor_gpu_flush_caches() failures
CVE-2026-46245drm/amd/display: Fix dc_link NULL handling in HPD init
CVE-2025-71313PCI: endpoint: Add missing NULL check for alloc_workqueue()
CVE-2026-46246power: supply: pm8916_lbc: Fix use-after-free for extcon in IRQ handler
CVE-2026-46247clk: qcom: gfx3d: add parent to parent request map
CVE-2026-46248wifi: ath12k: clear stale link mapping of ahvif->links_map
CVE-2026-46249octeontx2-af: Fix PF driver crash with kexec kernel booting

Showing top 20 of 32 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46258

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