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CVE-2026-89896— media: cedrus: fix memory leak in cedrus_init_ctrls()

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.

在 Linux 内核中，以下漏洞已得到修复： 媒体：cedrus：修复 中的内存泄漏 在 函数中，V4L2 控件句柄（control handler）在 的内存分配之前就已初始化。如果 的内存分配失败，函数会返回 ，但不会释放之前已分配的句柄资源，从而导致内存泄漏。 修复方式： 在 分配失败的路径上调用 来释放资源。 该漏洞最初是由我们在分析 v6.13-rc1 内核时使用的实验性分析工具发现的。该工具旨在检测内核内存管理方面的缺陷，目前仍处于开发阶段，尚未公开发布。经人工复查确认，该缺陷在 v7.1.1 版本中依

AI Predicted 3.7 Difficulty: Moderate EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1611 · Escape to Host

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1< 6fabacc3b79a528450aef4c32464da2ec681049e affected
50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1< 729a1ffab968b3c493f61d1cd683f5bafec500ea affected
50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1< ce5693b6e3a693fcdc3800af309363f6250104c8 affected
50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1< 22441be29ec27c693f40c1ef499093275ef529d1 affected
50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1< 79fd0b0161506fc9507bf7a6fe4c975a857a5be8 affected
50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1< f78cf36cabf911da348ea80e4e9f430d74f6905c affected
50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1< 81aa608ac3a56cdd4aab0bd12442ed529a24ba31 affected
50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1< 9df2fbe563194da1967a5db083442186c1323efe affected
… +10 more rows
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I. Basic Information for CVE-2026-89896

Vulnerability Information
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Vulnerability Title
media: cedrus: fix memory leak in cedrus_init_ctrls()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: cedrus: fix memory leak in cedrus_init_ctrls() In cedrus_init_ctrls(), the V4L2 control handler is initialized before allocating memory for ctx->ctrls. If this allocation fails, the function returns -ENOMEM without freeing the previously allocated handler resources, leading to a memory leak. Fix this by calling v4l2_ctrl_handler_free() on the ctx->ctrls allocation failure path. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1.1. An x86_64 allyesconfig build showed no new warnings. As we do not have an Allwinner SoC or board with a Cedrus VPU available to test with, no runtime testing was able to be performed.
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 ~ 6fabacc3b79a528450aef4c32464da2ec681049e -
Linux Linux 4.20 -

II. Public POCs for CVE-2026-89896

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III. Intelligence Information for CVE-2026-89896

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Other References for CVE-2026-89896 (8)

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-2026-89896

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