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CVE-2026-89888— media: i2c: ov02a10: fix endpoint parsing use-after-free

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 内核中已解决以下漏洞： media: i2c: ov02a10：修复端点（endpoint）解析中的释放后使用（use-after-free）问题 ov02a10_check_hwcfg() 函数在分配并解析端点后，立即调用了 fwnode_handle_put(ep)。然而，随后它又使用同一个 'ep' 句柄调用了 fwnode_property_read_u32()，这可能导致释放后使用（use-after-free）问题。 此外，读取可选属性 'ovti,mipi-clock-voltage' 时

CVSS 7.8 · High EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 91807efbe8ec7f591085067d9f96a112e015274b< 9de48ba68f56de9fe20ebd3f9728d22af25f9a91 affected
91807efbe8ec7f591085067d9f96a112e015274b< 8ddb3b69f67b0632ff3830da18de3e8dcaf5884b affected
91807efbe8ec7f591085067d9f96a112e015274b< 4c2988bf1ad2753240a38db10ce23e87ec542f8f affected
91807efbe8ec7f591085067d9f96a112e015274b< 213b2489130357c8d3e8d4fb2bdab88791ce3185 affected
91807efbe8ec7f591085067d9f96a112e015274b< 90f9b421fc6d4f2edab7521efdb1e58571468d33 affected
91807efbe8ec7f591085067d9f96a112e015274b< 6e13784452785cd8402b228bea53bc6a027ade84 affected
91807efbe8ec7f591085067d9f96a112e015274b< 94971ba0592ca77ec99b292226a4b398763315b8 affected
5.11 affected
… +8 more rows
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I. Basic Information for CVE-2026-89888

Vulnerability Information
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Vulnerability Title
media: i2c: ov02a10: fix endpoint parsing use-after-free
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: i2c: ov02a10: fix endpoint parsing use-after-free The ov02a10_check_hwcfg() function calls fwnode_handle_put(ep) immediately after allocating and parsing the endpoint. However, it subsequently calls fwnode_property_read_u32() using the same 'ep' handle, leading to a potential use-after-free. Additionally, reading the optional 'ovti,mipi-clock-voltage' property used to overwrite the 'ret' variable. If the property was missing, 'ret' would become negative, and this failure code would be incorrectly returned at the end of the function, causing probe to fail entirely. Fix the use-after-free by moving fwnode_property_read_u32() before the endpoint is parsed and freed. Avoid the error leak by not assigning the result of fwnode_property_read_u32() to 'ret'.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 91807efbe8ec7f591085067d9f96a112e015274b ~ 9de48ba68f56de9fe20ebd3f9728d22af25f9a91 -
Linux Linux 5.11 -

II. Public POCs for CVE-2026-89888

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III. Intelligence Information for CVE-2026-89888

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Other References for CVE-2026-89888 (7)

Same Patch Batch · Linux · 2026-09-16 · 276 CVEs total

CVE-2026-90048 9.8 CRITICAL fs/ntfs3: fix slab-out-of-bounds write in ni_create_attr_list()
CVE-2026-90012 9.8 CRITICAL spi: Fix DMA mapping ownership on partial map failure
CVE-2026-89970 9.8 CRITICAL nvmet-auth: Synchronize timeout work during SQ teardown
CVE-2026-89857 9.8 CRITICAL scsi: qla2xxx: Hold qpair lock when sending NVMe LS reject
CVE-2026-89969 9.8 CRITICAL nvmet-tcp: fix out-of-bounds write when receiving an over-long PDU
CVE-2026-89847 9.8 CRITICAL scsi: qla2xxx: Avoid double completion in async IOCB timeout
CVE-2026-89972 9.8 CRITICAL nvme: add missing SRCU grace period in error path
CVE-2026-89990 9.8 CRITICAL ceph: lock mutex in ceph_mds_check_access()
CVE-2026-90036 9.8 CRITICAL NFSD: Prevent client use-after-free during blocked-lock reaping
CVE-2026-90038 9.8 CRITICAL NFSD: Prevent client use-after-free during export state revocation
CVE-2026-90037 9.8 CRITICAL NFSD: Prevent client use-after-free during close_lru reaping
CVE-2026-89788 9.8 CRITICAL ksmbd: fix tree connection use-after-free in smb2_tree_connect()
CVE-2026-89783 9.8 CRITICAL xfrm6: fix out-of-bounds write in xfrm6_input_addr() when secpath is full
CVE-2026-90042 9.8 CRITICAL ceph: properly decrypt filenames in vmalloc() buffers
CVE-2026-89778 9.8 CRITICAL isofs: fix out-of-bounds page array access on empty zisofs block
CVE-2026-89915 9.3 CRITICAL KVM: arm64: Remove VM-wide VNCR mapping counter
CVE-2026-90049 9.3 CRITICAL net: skbuff: don't skb_tx_error() the source skb in skb_zerocopy()
CVE-2026-89775 9.3 CRITICAL KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation
CVE-2026-89916 9.3 CRITICAL KVM: arm64: Make VNCR invalidation participate in MMU invalidation retry
CVE-2026-89930 9.3 CRITICAL KVM: nVMX: Service local TLB flushes on failed nested VM-Enter

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-2026-89888

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