CVE-2024-56577 in Linux
الملخص
بحسب VulDB • 06/06/2026
في نواة لينكس، تم حل الثغرة التالية:
media: mtk-jpeg: إصلاح خطأ null-ptr-deref أثناء إلغاء تحميل الوحدة النمطية
يجب تدمير workqueue في ملف mtk_jpeg_core.c منذ الإصدار 09aea13ecf6f ("media: mtk-jpeg: refactor some variables")، وإلا فإن تتبع المكالمات أدناه يمكن أن يتم تشغيله بسهولة.
[ 677.862514] غير قادر على معالجة طلب paging للنواة عند العنوان الافتراضي dfff800000000023
[ 677.863633] KASAN: null-ptr-deref في النطاق [0x0000000000000118-0x000000000000011f]
... [ 677.879654] المعالج: 6 PID: 1071 Comm: modprobe Tainted: G O 6.8.12-mtk+gfa1a78e5d24b+ #17
... [ 677.882838] pc : destroy_workqueue+0x3c/0x770
[ 677.883413] lr : mtk_jpegdec_destroy_workqueue+0x70/0x88 [mtk_jpeg_dec_hw]
[ 677.884314] sp : ffff80000aa43d40
[ 677.884710] x29: ffff80000aa43d40 x28: 0000000000000000 x27: 0000000000000000
[ 677.885633] x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000
[ 677.886556] x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000000
[ 677.887479] x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000000000
[ 677.888402] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
[ 677.889325] x14: 00000000f1f1f1f1 x13: 0000000000000000 x12: ffff7000115b2e4d
[ 677.890248] x11: 1ffff000115b2e4c x10: ffff7000115b2e4c x9 : ffff80000aa43e90
[ 677.891171] x8 : 00008fffeea4d1b4 x7 : ffff80008ad97267 x6 : 0000000000000001
[ 677.892094] x5 : ffff80008ad97260 x4 : ffff7000115b2e4d x3 : 0000000000000000
[ 677.893017] x2 : 0000000000000023 x1 : dfff800000000000 x0 : 0000000000000118
[ 677.893940] Call trace:
[ 677.894260] destroy_workqueue+0x3c/0x770
[ 677.894789] mtk_jpegdec_destroy_workqueue+0x70/0x88 [mtk_jpeg_dec_hw]
[ 677.895540] devm_action_release+0x50/0x90
[ 677.896071] release_nodes+0xe8/0x170
[ 677.896548] devres_release_all+0xf8/0x178
[ 677.897079] device_unbind_cleanup+0x24/0x170
[ 677.897645] device_release_driver_internal+0x35c/0x480
[ 677.898321] device_release_driver+0x20/0x38
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