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CVE-2026-89883— media: rc: sunxi-cir: Unregister rc device on probe failure

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，已修复以下漏洞： 媒体：远程控制器（rc）：sunxi-cir：在探测失败时注销 rc 设备 当 成功后，若后续探测过程发生失败，必须通过 撤销该注册。而当前的错误处理路径会直接跳转到资源分配清理标签，仅调用 ，却遗漏了由 创建的 rc 设备注册及其相关资源，导致资源泄漏或状态不一致。 为此，新增一个“已注册设备”的逆序清理（unwind）标签，用于处理中断（IRQ）查找、IRQ 请求以及硬件初始化等失败场景。对于发生在 成功之前的失败，则继续保留使用 进行清理。

CVSS 7.8 · High EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1611 · Escape to Host

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f< 4655a591478e4b31a3396695a2457daad9d4c899 affected
b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f< 4efd7146dcf959afe64e9c51531cd8f82e60eab6 affected
b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f< 826763adbd8bd3137c5b3756650da473dc6216d5 affected
b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f< 59951b8a87ef4fb4b5b9409f70ba07663681a040 affected
b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f< 5b58d8c206f37525c8217171e1f3e91dd2fa55e5 affected
b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f< 5e6f5bffaa80fc8ecce348ec0e34fed9d843e47e affected
b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f< 479aa6fa8c50f1052f1451326ef7d4d586d340c3 affected
3.17 affected
… +8 more rows
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I. Basic Information for CVE-2026-89883

Vulnerability Information
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Vulnerability Title
media: rc: sunxi-cir: Unregister rc device on probe failure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: rc: sunxi-cir: Unregister rc device on probe failure After rc_register_device() succeeds, later probe failures must undo the registration with rc_unregister_device(). The current error path jumps to the allocation cleanup label and only calls rc_free_device(), leaving the rc device registration and resources created by rc_register_device() behind. Add a registered-device unwind label for the IRQ lookup, IRQ request, and hardware initialization failure paths. Keep rc_free_device() for failures before rc_register_device() succeeds.
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 b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f ~ 4655a591478e4b31a3396695a2457daad9d4c899 -
Linux Linux 3.17 -

II. Public POCs for CVE-2026-89883

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III. Intelligence Information for CVE-2026-89883

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Other References for CVE-2026-89883 (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

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