CVE-2026-64358

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux2209fdae5c2f615930c9af1379c1cfca199ec5d8 < 0fed0fc34ce734b4b8c2f6a467d38bddcb21dda9affected
LinuxLinux0498b27a1542021d90269d58347501d4c3ccd84e < ac0774961a6ea174a71d4ffa39966edafbf7662daffected
LinuxLinux26506a30e0e26d612f82a7bf0e395626968a44e6 < 973408ceab14555a8548b97c8cc7b54208c3f251affected
LinuxLinux34c519feef3e4fcff1078dc8bdb25fbbbd10303f < 4c4b4af4a9f278da096f0dbdb6b59594701d29bfaffected
LinuxLinux34c519feef3e4fcff1078dc8bdb25fbbbd10303f < b1845a227fda37b2fe5327df3ca0015d7e290235affected
LinuxLinuxe78c39f720679fcf3a2eacd82725ec3ea2648301affected
LinuxLinux6.6.140 < 6.6.145affected
LinuxLinux6.12.86 < 6.12.96affected
LinuxLinux6.18.27 < 6.18.39affected
LinuxLinux7.0.4 < 7.1affected
LinuxLinux7.1affected
LinuxLinux0 < 7.1unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.96 <= 6.12.*unaffected
LinuxLinux6.18.39 <= 6.18.*unaffected
LinuxLinux7.1.4 <= 7.1.*unaffected
LinuxLinux7.2-rc1 <= *unaffected

Weaknesses

References