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

Goal: 1000 CNY · Raised: 1325 CNY

100%
Buy Us a Coffee

CVE-2026-46252— regulator: core: fix locking in regulator_resolve_supply() error path

AI Predicted 5.5 Difficulty: Moderate EPSS 0.08% · P0

Possible ATT&CK Techniques 1AI

T1200 · Hardware Additions

Affected Version Matrix 6

VendorProductVersion RangeStatus
LinuxLinux36a1f1b6ddc6d1442424e29548e790633ca39c7b< c66e0db0f37290b53c57994f998bb55590364fd0affected
36a1f1b6ddc6d1442424e29548e790633ca39c7b< 497330b203d2c59c5ff3fa4c34d14494d7203bc3affected
4.2affected
< 4.2unaffected
6.19.4≤ 6.19.*unaffected
7.0≤ *unaffected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-46252

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
regulator: core: fix locking in regulator_resolve_supply() error path
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix locking in regulator_resolve_supply() error path If late enabling of a supply regulator fails in regulator_resolve_supply(), the code currently triggers a lockdep warning: WARNING: drivers/regulator/core.c:2649 at _regulator_put+0x80/0xa0, CPU#6: kworker/u32:4/596 ... Call trace: _regulator_put+0x80/0xa0 (P) regulator_resolve_supply+0x7cc/0xbe0 regulator_register_resolve_supply+0x28/0xb8 as the regulator_list_mutex must be held when calling _regulator_put(). To solve this, simply switch to using regulator_put(). While at it, we should also make sure that no concurrent access happens to our rdev while we clear out the supply pointer. Add appropriate locking to ensure that. While the code in question will be removed altogether in a follow-up commit, I believe it is still beneficial to have this corrected before removal for future reference.
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regulator core模块在regulator_resolve_supply错误路径中未正确持有regulator_list_mutex锁，可能导致锁依赖警告。
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 36a1f1b6ddc6d1442424e29548e790633ca39c7b ~ c66e0db0f37290b53c57994f998bb55590364fd0 -
LinuxLinux 4.2 -

II. Public POCs for CVE-2026-46252

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-46252

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-46252 (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-2026-462537.8 HIGHpstore/ram: fix buffer overflow in persistent_ram_save_old()
CVE-2026-462597.8 HIGHprocfs: fix missing RCU protection when reading real_parent in do_task_stat()
CVE-2026-462607.8 HIGHipv6: Fix out-of-bound access in fib6_add_rt2node().
CVE-2026-462637.8 HIGHdrm/amd/display: Fix out-of-bounds stream encoder index v3
CVE-2026-462717.8 HIGHwifi: ath12k: do WoW offloads only on primary link
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-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-2026-46245drm/amd/display: Fix dc_link NULL handling in HPD init
CVE-2025-71314drm/panthor: Recover from panthor_gpu_flush_caches() failures
CVE-2025-71313PCI: endpoint: Add missing NULL check for alloc_workqueue()
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-2026-46252

No comments yet

Leave a comment