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CVE-2026-45885— power: supply: cpcap-battery: Fix use-after-free in power_supply_changed()

AI Predicted 7.8 Difficulty: Moderate EPSS 0.03% · P10

Possible ATT&CK Techniques 1AI

T1498 · Network Denial of Service

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinux874b2adbed1253a11549cb9b7b912ab65fea9cf2< c549dd3de4b3f6e726d1b8386d40ccf7d3abdbe4affected
874b2adbed1253a11549cb9b7b912ab65fea9cf2< 3ff75cba1c98349a23a8f9333981deba1972cc11affected
874b2adbed1253a11549cb9b7b912ab65fea9cf2< 2ce2334be155bd8bad6377e99984246ce4dbd08caffected
874b2adbed1253a11549cb9b7b912ab65fea9cf2< cbb9b07f88a9ef6518934c41eb3e8cf840d657d5affected
874b2adbed1253a11549cb9b7b912ab65fea9cf2< f3fbe309c9bfe1aac1e2b26543e9dc4829f3275aaffected
874b2adbed1253a11549cb9b7b912ab65fea9cf2< 2841bbb5a35c4449c0a0458e8e476b2a62f95147affected
874b2adbed1253a11549cb9b7b912ab65fea9cf2< e261be6f18929f2397cd54cd583a2df624c129c1affected
874b2adbed1253a11549cb9b7b912ab65fea9cf2< 642f33e34b969eedec334738fd5df95d2dc42742affected
… +10 more rows
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I. Basic Information for CVE-2026-45885

Vulnerability Information
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Vulnerability Title
power: supply: cpcap-battery: Fix use-after-free in power_supply_changed()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: power: supply: cpcap-battery: Fix use-after-free in power_supply_changed() Using the `devm_` variant for requesting IRQ _before_ the `devm_` variant for allocating/registering the `power_supply` handle, means that the `power_supply` handle will be deallocated/unregistered _before_ the interrupt handler (since `devm_` naturally deallocates in reverse allocation order). This means that during removal, there is a race condition where an interrupt can fire just _after_ the `power_supply` handle has been freed, *but* just _before_ the corresponding unregistration of the IRQ handler has run. This will lead to the IRQ handler calling `power_supply_changed()` with a freed `power_supply` handle. Which usually crashes the system or otherwise silently corrupts the memory... Note that there is a similar situation which can also happen during `probe()`; the possibility of an interrupt firing _before_ registering the `power_supply` handle. This would then lead to the nasty situation of using the `power_supply` handle *uninitialized* in `power_supply_changed()`. Fix this racy use-after-free by making sure the IRQ is requested _after_ the registration of the `power_supply` handle.
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，该漏洞源于电源管理驱动中IRQ请求与power_supply句柄分配顺序不当，导致释放后重用，可能引发系统崩溃或内存损坏。
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 874b2adbed1253a11549cb9b7b912ab65fea9cf2 ~ c549dd3de4b3f6e726d1b8386d40ccf7d3abdbe4 -
LinuxLinux 4.13 -

II. Public POCs for CVE-2026-45885

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III. Intelligence Information for CVE-2026-45885

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Patches & Fixes for CVE-2026-45885 (8)

Same Patch Batch · Linux · 2026-05-27 · 276 CVEs total

CVE-2026-460399.8 CRITICALrxgk: Fix potential integer overflow in length check
CVE-2026-458989.8 CRITICALRDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-459889.8 CRITICALrxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-459729.8 CRITICALsmb: client: fix potential UAF and double free in smb2_open_file()
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-2026-458787.8 HIGHdrm/amdkfd: Fix watch_id bounds checking in debug address watch v2
CVE-2026-459597.8 HIGHcrypto: ccp - Fix a crash due to incorrect cleanup usage of kfree
CVE-2026-460117.8 HIGHmedia: mtk-jpeg: fix use-after-free in release path due to uncancelled work
CVE-2026-458947.8 HIGHiommu/vt-d: Clear Present bit before tearing down PASID entry
CVE-2026-460157.8 HIGHtcp: call sk_data_ready() after listener migration
CVE-2026-458527.8 HIGHRDMA/rxe: Fix double free in rxe_srq_from_init
CVE-2026-458627.8 HIGHiommu/vt-d: Flush cache for PASID table before using it
CVE-2026-458617.8 HIGHgfs2: Fix slab-use-after-free in qd_put

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-2026-45885

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