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CVE-2026-45916— power: supply: sbs-battery: Fix use-after-free in power_supply_changed()

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.

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sbs-battery电源管理驱动中IRQ请求与power_supply注册顺序不当，导致在移除设备时存在竞争条件，中断处理函数可能在power_supply句柄被释放后调用power_supply_changed，从而引发释放后重用，可能导致系统崩溃或内存损坏。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.16% · P6

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux d2cec82c28802da31596b395ad292cb8f132fd63< ca7dd71773e4e050b0fb98768b7eae60f8d1f38b affected
d2cec82c28802da31596b395ad292cb8f132fd63< f1f472b14ad56104ba228b8fbec60d5b21829913 affected
d2cec82c28802da31596b395ad292cb8f132fd63< 8010b745b436c3e1ca5dd960aa29fa3e0f6d8841 affected
d2cec82c28802da31596b395ad292cb8f132fd63< 2078830c32d1e49ac942c6f8c21f35c806ae5e94 affected
d2cec82c28802da31596b395ad292cb8f132fd63< 82d3eb97a976c9d56bb92b241397610e57a9c629 affected
d2cec82c28802da31596b395ad292cb8f132fd63< 861dda7a9074c0ff67788928165ae39d7f647491 affected
d2cec82c28802da31596b395ad292cb8f132fd63< 14d4dee5d8fb361bfff275832087254beab66d72 affected
d2cec82c28802da31596b395ad292cb8f132fd63< 8d59cf3887fbabacef53bfba473e33e8a8d9d07b affected
… +10 more rows
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I. Basic Information for CVE-2026-45916

Vulnerability Information
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Vulnerability Title
power: supply: sbs-battery: Fix use-after-free in power_supply_changed()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: power: supply: sbs-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. Keep the old behavior of just printing a warning in case of any failures during the IRQ request and finishing the probe successfully.
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
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sbs-battery电源管理驱动中IRQ请求与power_supply注册顺序不当，导致在移除设备时存在竞争条件，中断处理函数可能在power_supply句柄被释放后调用power_supply_changed，从而引发释放后重用，可能导致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

Vendor Product Affected Versions CPE Subscribe
Linux Linux d2cec82c28802da31596b395ad292cb8f132fd63 ~ ca7dd71773e4e050b0fb98768b7eae60f8d1f38b -
Linux Linux 4.9 -

II. Public POCs for CVE-2026-45916

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III. Intelligence Information for CVE-2026-45916

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Patches & Fixes for CVE-2026-45916 (8)

Same Patch Batch · Linux · 2026-05-27 · 275 CVEs total

CVE-2026-46039 9.8 CRITICAL rxgk: Fix potential integer overflow in length check
CVE-2026-45898 9.8 CRITICAL RDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-45988 9.8 CRITICAL rxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-45972 9.8 CRITICAL smb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-46043 9.1 CRITICAL RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-45945 8.8 HIGH iommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-46056 8.8 HIGH Bluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2026-45843 8.2 HIGH slip: bound decode() reads against the compressed packet length
CVE-2025-71311 8.2 HIGH fs/ntfs3: Initialize new folios before use
CVE-2026-46037 8.2 HIGH ipv4: icmp: validate reply type before using icmp_pointers
CVE-2026-46099 8.1 HIGH net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-46010 8.1 HIGH rxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-46076 7.9 HIGH KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-45909 7.8 HIGH clk: mediatek: Drop __initconst from gates
CVE-2026-45862 7.8 HIGH iommu/vt-d: Flush cache for PASID table before using it
CVE-2026-45956 7.8 HIGH drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()
CVE-2026-45910 7.8 HIGH RDMA/rxe: Fix race condition in QP timer handlers
CVE-2026-45942 7.8 HIGH ext4: fix e4b bitmap inconsistency reports
CVE-2026-45894 7.8 HIGH iommu/vt-d: Clear Present bit before tearing down PASID entry
CVE-2026-45933 7.8 HIGH bpf: Preserve id of register in sync_linked_regs()

Showing top 20 of 275 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-45916

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