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CVE-2026-64358— media: mtk-jpeg: cancel workqueue on release for supported platforms only

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基金会开源的一款操作系统内核。 Linux kernel 7.1版本存在安全漏洞，该漏洞源于在mtk_jpeg_release函数中无条件调用cancel_work_sync，对于不使用workqueue的变体，导致内核警告。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1053 · Scheduled Task/Job

Affected Version Matrix 17

VendorProduct Version RangeStatus
Linux Linux 2209fdae5c2f615930c9af1379c1cfca199ec5d8< 0fed0fc34ce734b4b8c2f6a467d38bddcb21dda9 affected
0498b27a1542021d90269d58347501d4c3ccd84e< ac0774961a6ea174a71d4ffa39966edafbf7662d affected
26506a30e0e26d612f82a7bf0e395626968a44e6< 973408ceab14555a8548b97c8cc7b54208c3f251 affected
34c519feef3e4fcff1078dc8bdb25fbbbd10303f< 4c4b4af4a9f278da096f0dbdb6b59594701d29bf affected
34c519feef3e4fcff1078dc8bdb25fbbbd10303f< b1845a227fda37b2fe5327df3ca0015d7e290235 affected
e78c39f720679fcf3a2eacd82725ec3ea2648301 affected
6.6.140< 6.6.145 affected
6.12.86< 6.12.96 affected
… +9 more rows
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I. Basic Information for CVE-2026-64358

Vulnerability Information
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Vulnerability Title
media: mtk-jpeg: cancel workqueue on release for supported platforms only
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: mtk-jpeg: cancel workqueue on release for supported platforms only Since a recent fix the mtk_jpeg_release function cancels any pending or running work present in the driver workqueue using cancel_work_sync function. Currently, only the multicore based variants use this workqueue and they have the jpeg_worker platform data field initialized with a workqueue callback function. For the others, this field value remain NULL by default. The cancel_work_sync function is unconditionally called in mtk_jpeg_release function, even for the variants that do not use the workqueue. This call generates a WARN_ON print in __flush_work because the workqueue callback function presence check fails in __flush_work function (used by cancel_work_sync). So, to avoid these warnings, call cancel_work_sync only if a workqueue callback is defined in platform data.
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基金会开源的一款操作系统内核。 Linux kernel 7.1版本存在安全漏洞，该漏洞源于在mtk_jpeg_release函数中无条件调用cancel_work_sync，对于不使用workqueue的变体，导致内核警告。
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 2209fdae5c2f615930c9af1379c1cfca199ec5d8 ~ 0fed0fc34ce734b4b8c2f6a467d38bddcb21dda9 -
Linux Linux 7.1 -

II. Public POCs for CVE-2026-64358

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III. Intelligence Information for CVE-2026-64358

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Patches & Fixes for CVE-2026-64358 (5)

Same Patch Batch · Linux · 2026-07-25 · 274 CVEs total

CVE-2026-64355 9.8 CRITICAL bpf: Reject fragmented frames in devmap
CVE-2026-64459 9.8 CRITICAL tcp: restore RCU grace period in tcp_ao_destroy_sock
CVE-2026-64303 9.8 CRITICAL spi: fsl-lpspi: terminate the RX channel on TX prepare failure path
CVE-2026-64439 9.8 CRITICAL crypto: krb5 - filter out async aead implementations at alloc
CVE-2026-64410 9.8 CRITICAL netfilter: flowtable: IPIP tunnel hardware offload is not yet support
CVE-2026-64399 9.8 CRITICAL ksmbd: add permission checks for FSCTL_DUPLICATE_EXTENTS_TO_FILE
CVE-2026-64397 9.8 CRITICAL ksmbd: serialize QUERY_DIRECTORY requests per file
CVE-2026-64391 9.8 CRITICAL ksmbd: use opener credentials for ADS I/O
CVE-2026-64387 9.8 CRITICAL smb: client: fix query directory replay double-free
CVE-2026-64386 9.8 CRITICAL smb: client: fix query_info() replay double-free
CVE-2026-64385 9.8 CRITICAL smb: client: fix double-free in SMB2_ioctl() replay
CVE-2026-64383 9.8 CRITICAL smb: client: fix double-free in SMB2_flush() replay
CVE-2026-64384 9.8 CRITICAL smb: client: fix change notify replay double-free
CVE-2026-64268 9.8 CRITICAL RDMA/siw: bound Read Response placement to the RREAD length
CVE-2026-64523 9.8 CRITICAL net/handshake: Take a long-lived file reference at submit
CVE-2026-64269 9.1 CRITICAL RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg
CVE-2026-64257 9.1 CRITICAL smb: client: reject overlapping data areas in SMB2 responses
CVE-2026-64319 9.1 CRITICAL nvmet-auth: validate reply message payload bounds against transfer length
CVE-2026-64320 9.1 CRITICAL nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page
CVE-2026-64393 9.1 CRITICAL ksmbd: run set info with opener credentials

Showing top 20 of 274 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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