media: chips-media: wave5: Resume device before setting EOS flag

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Summary

CVECVE-2026-89866
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-16 11:16:54 UTC
Updated2026-09-16 11:16:54 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: media: chips-media: wave5: Resume device before setting EOS flag Setting the EOS flag talks to the firmware via send_firmware_command(), which accesses VPU registers. Both the STREAMOFF path (wave5_vpu_dec_job_abort()) and the V4L2_DEC_CMD_STOP path (wave5_vpu_dec_stop()) can run while the device is runtime suspended, so those register accesses hit powered-down hardware and the SoC raises an asynchronous SError, panicking the kernel: SError Interrupt on CPU3, code 0x00000000bf000000 -- SError send_firmware_command+0x2c/0x160 [wave5] wave5_vpu_dec_set_bitstream_flag+0x6c/0x80 [wave5] wave5_vpu_dec_update_bitstream_buffer+0x80/0xec [wave5] wave5_vpu_dec_job_abort+0x44/0xa0 [wave5] v4l2_m2m_cancel_job+0x110/0x19c [v4l2_mem2mem] v4l2_m2m_streamoff+0x24/0x140 [v4l2_mem2mem] Resume the device with pm_runtime_resume_and_get() around the EOS firmware command and release it with pm_runtime_put_autosuspend(), matching the runtime PM handling already done in wave5_vpu_dec_device_run().

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 9707a6254a8a6b978bde811a44fe07d86c229d1c 2215e55ee1e5e69ad53862d968360c5aa63dd3a7 git Not specified
CNA Linux Linux affected 9707a6254a8a6b978bde811a44fe07d86c229d1c a52e6f7923c17a672135b485ffd96fbd72f46267 git Not specified
CNA Linux Linux affected 6.8 Not specified
CNA Linux Linux unaffected 6.8 semver Not specified
CNA Linux Linux unaffected 7.2.5 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/a52e6f7923c17a672135b485ffd96fbd72f46267 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2215e55ee1e5e69ad53862d968360c5aa63dd3a7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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